REPAIR / SERVICING TV MYSTERY MTV-4028LTA2

Technical description and composition of the MYSTERY MTV-4028LTA2 TV, panel type and applicable modules. The composition of the modules.
MYSTERY LED
Model: MTV-4028LTA2
Chassis / Version: MSAV3220-ZC26-02
Panel: V390HJ1-P02
T-CON: V390HJ1-XC01
LED driver (backlight): integrated into PSU
PWM LED driver: OB2263, AP3616M28-G1
MOSFET LED driver: MDF0765 (7A 600V)
Power Supply (PSU): TV4205-ZC02-01 M23 / G44166 / 02
PWM Power: FAN7930 (PFC), OB2273
MOSFET Power: FDPF18N50
MainBoard: MSAV3220-ZC26-02 (B)
IC MainBoard: CPU MSD308BT; DRAM: K4B1G1646G; SPI: 25Q64, 25Q32, 25L4005
Tuner: YC
Technical Specifications MTV-4028LTA2
MYSTERY MTV-4028LTA2
General repair guidelines for TV LCD LED
Repair of the MYSTERY MTV4028LTA2 TV should begin with a careful external examination of all its components and modules. Visible damage to elements can sometimes indicate the direction of the search for a defect even before the necessary measurements are taken. If charred resistors, swollen electrolytic or cermet capacitors, ring cracks in the soldered terminals of transformers or heating elements are detected, it is advisable to establish the causes and consequences of the malfunction that has arisen, as well as to check the connected elements and assemblies.
If the MTV4028LTA2 TV does not turn on, does not make any sounds when it is turned on, and also no indicators on the front panel light or blink - there is a high probability of a malfunction in the power supply module. In some cases, only the stabilizer or power converter of the control processor may be faulty, which is typical for some MYSTERY models. In the general case, first of all, it is necessary to check the electrolytic capacitors of the secondary rectifier filters and the fuse at the input of the network. If it is broken, then you should check for breakdown of the PN junctions of the rectifier bridge diodes and the key transistor of the converter, which can either be on a separate radiator or integrated with a PWM controller in a common chip. Possible options.
If a breakdown of the power switch is detected, it should be remembered that in a switching power supply (IIP) it does not fail by itself without any reasons that should be sought by checking other elements of the primary circuit - electrolytic capacitors, a PWM controller, which can only be checked replacement, as well as other semiconductor elements (diodes, transistors, zener diodes).
If there is no image when you turn on the MYSTERY MTV4028LTA2, or it appears for a second and disappears, but there is sound, most likely there is a malfunction in the backlight LED circuit of the V390HJ1-P02 panel, or in their power converter. It is necessary to check the electrolytic capacitors of the filter of the secondary rectifiers in the general power supply unit.
To check the health of the LEDs, as well as contact connections in the ruler circuit, it is necessary to disassemble the panel.
It should be remembered that it is not possible to determine the open circuit in the LED lines without disassembling the panels with a tester or multimeter without an additional device, for example, a current source. To open all PN junctions connected in series at once, a voltage of several tens of volts may be required.
If the motherboard MSAV3220-ZC26-02 (B) is faulty, first of all it is necessary to check all the linear stabilizers or power converters of its chips, and also, if necessary, update the software. Sometimes you can check the health of MB only by replacement.
If it is not possible to replace the MB board (SSB), you need to check the health of its elements - 25Q64, 25Q32, 25L4005. Defective components should be replaced.

Attention! Users and owners of MTV4028LTA2 TVs who do not have the appropriate qualifications, knowledge and experience are strongly advised against self-repair attempts in order to avoid negative consequences that could lead to complete non-repairability of the device.

FIRMWARE FOR SPI FLASH  ----------->   MYSTERY MTV4028LTA2, Main: MSAV3220-ZC26-02 (B), Panel: V390HJ1-P02

SCHEMATIC DIAGRAM  / SERVICE MANUAL   ------------------>    TV4205-ZC02-01 Schematic diagram

 To reduce the backlight current in LED drivers with the AP3616M28-G1 terminal stage, the total resistance of the resistors from terminal 22 (ISET AP3616M28) to the housing should be proportionally increased. The maximum current in each of the 16 channels is 75 mA. To increase the current in the diodes, the channels are connected in parallel. The current in milliamperes in each channel is determined from the calculation of 1560 * 1.194 / Rset, where Rset is the resistance from the ISET output to the housing in kilo-ohms.
Repair MainBoard
The appearance of the MainBoard MSAV3220-ZC26-02 (B) is shown in the figure below:
MSAV3220-ZC26-02
MSAV3220-ZC26-02 can be used in TVs:
BBK LEM3284DT2 (Panel LSC320AN02), MYSTERY MTV-2224LT2 (Panel CLAA215FA10), MYSTERY MTV-4028LTA2 (Panel V390HJ1-P02), MYSTERY MTV-4829LTA2 (Panel LSC480HN02-G), MYSTERY MTV-4129LT2 (Panel LK400D3HC34K), MYSTERY MTV-2424LT2 (Panel HM236WU8-200 ), MYSTERY MTV-4030LT2 (Panel V400HJ6-PE1), MYSTERY MTV-4629LTA2 (Panel HV460WU2-200).
PSU Advanced
According to the conditions of compliance with modern world standards for household switching power supplies, the TV4205-ZC02-01 module provides for the use of a Power Factor Correction unit. The PFC circuit is a flyback converter based on the FAN7930 PWM controller. The reactance of an electrolytic capacitor of a line filter at a frequency of 50-60 Hz is usually not more than 20-30 ohms and its charge directly from the network through open diodes could reach tens of amperes per pulse if no filtering were applied.
As a result of the PFC conversion, an increased voltage on the capacitor (about 380V) cannot directly open the rectifier diodes, on the anode of which the voltage will always be slightly less (about 300V) and then its charging current will always be limited by the elements of the PWM controller. As a result, the envelope of the high-frequency pulses of the consumed current will repeat the shape and phase of the input sinusoidal voltage. The presence of an increased voltage (+ 380V) on the network capacitor indicates the serviceability of the PFC node.
The appearance of the power supply
Main features of the MYSTERY MTV-4028LTA2 device:
Installed matrix (LED panel) V390HJ1-P02.
The matrix control uses the Timing Controller (T-CON) V390HJ1-XC01.
To power the backlight LEDs, a converter is used, combined with a power supply unit, controlled by the OB2263 PWM controller, AP3616M28-G1. As power elements of the LED driver, keys of the type MDF0765 (7A 600V) are used.
The required supply voltages for all nodes of the MYSTERY MTV-4028LTA2 television are generated by the TV4205-ZC02-01 power supply module or its analogs using FAN7930 (PFC), OB2273 microchips and FDPF18N50 type power switches.
MainBoard - the main board (motherboard) is an MSAV3220-ZC26-02 module, using the MSD308BT CPU chips; DRAM: K4B1G1646G; SPI: 25Q64, 25Q32, 25L4005 and others.
The YC tuner provides television reception and channel tuning.
Additional technical information about the panel:
Brand: CHIMEI INNOLUX
Model: V390HJ1-P02
Type: a-Si TFT-LCD, CELL
Diagonal size: 39 inch
Resolution: 1920x1080, FHD
Display Mode: MVA, Normally Black, Transmissive
Active Area: 853.92x480.33 mm
Surface: Antiglare (Haze 3.5%), Hard coating (3H)
Glass Depth: 0.50 + 0.50 mm
Transmissivity: 5.8% (with Polarizer)
Contrast Ratio: 3000: 1
Display Colors: 16.7M (8-bit)
Response Time: 8.5 (G to G)
Frequency: 60Hz
Signal Interface: LVDS (2 ch, 8-bit), 51 pins
Voltage: 12.0V
MYSTERY MTV-4028LTA2 TV with V390HJ1-P02 LCD, 39 "(99 cm) diagonal size of 16: 9 format. The required screen brightness of 250 cd / m² is provided by LED backlighting. Contrast, as the ratio of maximum brightness to minimum, is 1000: 1. Edge LED backlighting is implemented in the LED-panel of this TV - Edge LED. You can view images in high quality HD at a resolution of 1366x768 pixels in the standard of graphic decomposition 720p (HD Ready).
MTV-4028LTA2 TV has built-in SMART Software and pre-installed Android Operating System. Connecting to the Internet can be done via Wi-Fi. The input high-frequency or video signal can be processed in analogue systems PAL, SECAM, NTSC. Graphic processing and digital signal generation occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i. Supported media file formats: MP3, WMA, MPEG4, Xvid, DivX, MKV, JPEG.
The power of the acoustic system of sound 20 W (2x10 W) provide two speakers. The audio processing system NICAM STEREO is used.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x2, VGA, HDMI x2, USB x2, Ethernet (RJ-45), Wi-Fi. An output for connecting headphones is provided. To connect a computer or laptop to this TV model, use the VGA (D-Sub 15) on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768, 1360x768.
A digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-C, DVB-T2 standards.
Overall dimensions: With stand 642x444x209 mm, Without stand 642x398x44 mm.
Attention! The panel V390HJ1-P02 of the MYSTERY MTV-4028LTA2 LED TV is an expensive and unreliable element.
Avoid any impact on the glass and pressure on the surface of the screen to avoid damage to the LED panel!
It is also unsafe to get liquid on the screen. Sometimes one drop is enough if it flows down the glass onto the cables so that the TV becomes unrepairable.

REPAIR / SERVICING TV MYSTERY MTV-770

Technical description and composition of the MYSTERY MTV-770 TV, type of panel and applicable modules. The composition of the modules.
MYSTERY
Model: MTV-770
Chassis / Version: V2L10
Panel: HSD-7A
MainBoard: MP5-TV V3.0
IC MainBoard: Flash: 25LD51, EEPROM: 24C32P, SOUND: A6019
Tuner: XF-6AS (TDQ)
Appearance
MYSTERY MTV-770
General recommendations for repairing TV LCD
Repair of all electronic devices, including the MYSTERY TV, made on the basis of the V2L10 chassis, it is advisable to start with an external examination of its external and internal elements. Often, by the external signs and nature of the damage to the elements, it becomes possible to draw some conclusions and determine a further algorithm for finding a defect before making the necessary measurements at control points. Elements with visible damage, for example, capacitors swelled up after boiling the electrolyte, charred resistors in certain nodes of the circuit, as well as ring cracks in solders will help the master to guess the causes and possible consequences of the malfunction.
In the absence of any signs of operability, when the MYSTERY MTV-770 does not turn on and does not signal anything with the control lights on the panel, there is a possibility of a malfunction of the TV power module. With the same manifestations, the power regulator of the control processor on the motherboard may be faulty. In the absence of swollen filter capacitors of the secondary rectifiers, the diagnostics of the power supply should be started by checking the fuse and, if it is broken, it is first necessary to check all the power semiconductor elements of the primary circuit - diodes and transistors for the possibility of an avalanche or thermal breakdown.
As a rule, the keys in switching power supplies (SMPS) are reliable enough and rarely fail for no reason to be looked for by checking other components of the circuit - electrolytic capacitors, resistors and semiconductor elements of the primary circuit. The PWM chip is verified by replacing it with a known good one.
In those cases when the MYSTERY MTV-770 TV has lost an image, and the sound is there and all other functions are operational, there is a possibility of an inverter (converter for powering the backlight) malfunction. When you turn on the TV, the image may appear briefly and immediately disappear. It must be borne in mind that with such manifestations, the lamps themselves also fail, the malfunction of which can be detected by replacement, by connecting to the connectors for diagnostics that are known to be serviceable and suitable in power. It should be remembered that when protection is disabled in order to diagnose a malfunction, there is always a risk of failure of the power elements of the inverter. After repair, it is necessary to restore all standard converter protection circuits.
On the MP5-TV V3.0 motherboard, in the event of a malfunction, you should first check the performance of all the stabilizers or power converters of the microcircuits and, if necessary, update the software (software). In some cases, to repair the MB board (SSB), it may be necessary to replace the chips - Flash: 25LD51, EEPROM: 24C32P, SOUND: A6019 with new or obviously working ones. In cases where BGA technologies are used, defects are usually localized by the heating method.

Once again, remind users! Attempts to self-repair a TV MYSTERY MTV-770 without the appropriate qualifications and experience can lead to its complete non-repairability!

FIRMWARE FOR SPI FLASH  ----------->   MYSTERY MTV-770 (V2L10), Main MP5-TV V3.0, Panel HSD-7A

 The appearance of the MainBoard MP5-TV is shown in the figure below:
MP5-TV
Main features of the MYSTERY MTV-770 device:
Installed matrix (LCD panel) HSD-7A.
The required supply voltage for all nodes of the TV MYSTERY MTV-770 provides a switching power supply.
MainBoard - the main board (motherboard) is an MP5-TV module using Flash chips: 25LD51, EEPROM: 24C32P, SOUND: A6019 and others.
The XF-6AS (TDQ) tuner provides TV reception and channel tuning.

REPAIR / SERVICING TV MYSTERY MTV-4207WH

Technical description and composition of the MYSTERY MTV-4207WH TV, type of panel and applicable modules. The composition of the modules.
MYSTERY
Model: MTV-4207WH
Chassis / Version: MSTV3208-ZC01-01
Panel: T420HW09 V.1
Lamp backlight: 10 Lamp CCFL
T-CON: 46T03-C0K T460HW03 VF CTRL
Inverter (backlight): VIT71887.00 REV.0 // TV4201-ZC02-01 (C)
Power Supply (PSU): A-B22176
MainBoard: MSTV3208-ZC01-01
IC MainBoard: CPU: MST6E48RHS-LF-Z1; SPI Flash: 25Q32; Sound: TPA3113D2
Tuner: F21WT-3BAR-E
Technical Specifications MTV-4207WH
MYSTERY MTV-4207WH
General recommendations for repairing TV LCD
Repair of electronic equipment usually begins with its external inspection and diagnosis of the malfunction. In this case, you should examine all the internal components of the MYSTERY MTV-4207WH TV, as well as the external elements of the housing. A visible physical change in some components can sometimes suggest a further troubleshooting direction. Swollen electrolytic or cermet capacitors, charred resistors, ring cracks in the soldered terminals of the elements - all this can significantly help the master to determine the causes and consequences of the malfunction of the TV.
If the TV does not turn on, no control lights are on or blinking, there are no sounds when you turn on, and there is not the slightest sign of operability - the most likely malfunction is in the power module. In the absence of swollen filter capacitors of the secondary rectifiers, the diagnostics of the power supply should begin by checking the fuse and, if it is broken, it is first necessary to check all the power semiconductor elements of the primary circuit - diodes and transistors for the possibility of an avalanche or thermal breakdown.
Power switches in pulsed power supplies (SMPS) fail extremely rarely for no reason and, if they are broken, it is necessary to look for a malfunction in the stabilization circuits by checking electrolytic capacitors, semiconductor devices, and resistors in the primary circuit. The cause may be a malfunction of the PWM controller chip, which can only be checked by replacing it with a new or obviously working one.
Sometimes the MYSTERY MTV-4207WH TV does not have an image, but there is sound, or the image appears and immediately disappears. In this case, there is a high probability of a malfunction of the backlight converter, or of the lamps themselves, which can be checked by replacement. In such cases, it is necessary to verify the serviceability of all electrolytic capacitors of the filter according to the power supply of the inverter itself, including in the power supply unit (power supply unit). When diagnosing a malfunction of the inverter with the protection off, special precautions must be taken, because there is a risk of failure of the power elements of the inverter. After diagnosis, it is imperative to restore the protection circuits for the inverter to operate normally.
In cases of attempts to repair the motherboard MSTV3208-ZC01-01, it is necessary to check the operability of the linear stabilizers and power converters of its microcircuits and, if possible, update the software (software). BGA chips can sometimes be diagnosed with local heating. In some cases, to repair the MB board (SSB), it may be necessary to replace the chips - CPU: MST6E48RHS-LF-Z1; SPI Flash: 25Q32; Sound: TPA3113D2 for new or obviously working. In cases where BGA technologies are used, defects are usually localized by the heating method.
If there is no reception of television channels, but the TV works properly from external devices, first of all it is necessary to check the voltage of the tuner F21WT-3BAR-E and update the software.

Owners of MTV-4207WH TVs are recommended to contact qualified specialists with experience for repair! Self-repair attempts without the appropriate knowledge and skills can lead to serious negative consequences!

FIRMWARE FOR SPI FLASH  ----------->   MYSTERY MTV-4207WH , Main: MSTV3208-ZC01-01, Panel: 1080p Full HD, 1920x1080

 The appearance of the MainBoard MSTV3208-ZC01-01 is shown in the figure below:
The motherboard MSTV3208-ZC01-01 is made using the multifunction microprocessor MST6M48RHS-LF, which includes a scaler (graphic controller-scaler). To organize the work of the processor, the external RAM H5PS5162GFR 512Mb DDR2 SDRAM in BGA version and SPI FLASH 25Q32 (4Mb) are used. To provide power to the processor core, a DC / DC converter with an output voltage of 1.2V is used, assembled on the basis of the MP1482 PWM controller. Other nodes of the processor are powered by linear voltage stabilizers 2.5V, 3.3V. 1.8V voltage is used to power the DDR RAM, 3.3V is needed for the SPI FLASH ROM.
It is advisable to start the MainBoard repair by checking the supply voltage in Stand-by mode 5V and 3.3V. In operating mode, check the operation of all linear stabilizers and the DC / DC converter. If there is a backlight and there is no image, you need to check the power of the 5V or 12V panel (depending on the type of LCD panel), which should be present directly on the LVDS connector.
If the indicator signals Stand-by mode and does not respond to the remote control and control buttons, it is recommended to update the SPI Flash software. Taking into account the glitchiness of Winbond SPI chips, it is advisable to replace them with new ones in case of software failures.
MSTV3208-ZC01-01 can be used in TVs:
BBK LEM2648SD (Panel V260B1-LE9 revC1), BBK LEM3248SD (Panel HV320WX2-130 (B3)), BBK LMP3229HDU Ver1 (Panel T315HW02 v.7), BBK LMP3229HDU Ver2 (Panel T315HW04 V7), BBK LEM2649HD (Panel V260H1-LE7 Rev C1), MYSTERY MTV-2607W (Panel V260H1-L05), MYSTERY MTV-3206 (Panel T315XW04 V.7), MYSTERY MTV-3207W (Panel V315B3-L04 rev.c1), MYSTERY MTV-3213LW (Panel T315XW04 V.8), MYSTERY MTV-2220LW (Panel CLAA215FA15), MYSTERY MTV-3207W (Panel HV320WX2-110), MYSTERY MTV-2614LW (Panel V260H1-LE6), MYSTERY MTV-3208WH (Panel V315H1-L02), MYSTERY MTV-2411LW (Panel V236H1-LE5 Rev.C1), MYSTERY MTV-2618LW (Panel V260B2-LE11), MYSTERY MTV-2211LW (Panel CLAA215FA10), MYSTERY MTV-2414LW (Panel V236H1-L01), MYSTERY MTV-2611LW (Panel V260H1-LE6 Rev.C1), MYSTERY MTV-3206W (Panel T315XW03 V.3), MYSTERY MTV-3211LW (Panel V315H3-LE2 Rev. C1), MYSTERY MTV-4207WH (Panel T420HW09 V.1), MYSTERY MTV-1921LD (Panel HT185WX3).
Main features of the MYSTERY MTV-4207WH device:
Installed matrix (LCD-panel) T420HW09 V.1.
The matrix control uses the Timing Controller (T-CON) 46T03-C0K.
To power the backlight used inverter VIT71887.00.
The formation of the necessary supply voltages for all nodes of the MYSTERY MTV-4207WH TV is carried out by the A-B22176 power module, or its analogues.
MainBoard - the main board (motherboard) is an MSTV3208-ZC01-01 module, using CPU chips: MST6E48RHS-LF-Z1; SPI Flash: 25Q32; Sound: TPA3113D2 and others.
The F21WT-3BAR-E tuner provides television reception and channel tuning.
Additional technical information about the panel:
Brand: AUO
Model: T420HW09 V1
Type: a-Si TFT-LCD, Panel
Diagonal size: 42 inch
Resolution: 1920x1080, FHD
Display Mode: AMVA, Normally Black, Transmissive
Active Area: 930.24x523.26 mm
Surface: Antiglare, Hard coating (3H)
Brightness: 400 cd / m²
Contrast Ratio: 4000: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 6.5 (G to G)
Frequency: 60Hz
Lamp Type: 10 pcs CCFL Embedded (Inverter)
Signal Interface: LVDS (2 ch, 10-bit), 51 pins
Voltage: 12.0V
TV MYSTERY MTV-4207WH with LCD T420HW09, diagonal size 42 "(106 cm) in 16: 9 format. The brightness of the screen 400 cd / m² is ensured by backlighting with CCFL (EEFL) fluorescent lamps. Contrast, as the ratio of maximum brightness to minimum, is 1200: 1. The design and technical capabilities of the TV provide for viewing broadcasts and films in high quality HD with a resolution of 1920x1080 pixels in graphic resolution according to the standard 1080p (Full HD). The input high-frequency or video signal can be processed in analogue systems PAL, SECAM, NTSC. Grafic Digital signal processing and generation takes place in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported media file formats: MP3, JPEG.
The power of the sound system 24 W (2x12 W) provide two speakers. The audio processing system NICAM STEREO is used.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV x2, audio x3, component, SCART, VGA, HDMI x2, USB. An output for connecting headphones is provided. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector is used on the TV case, this interface supports resolutions: 800x600, 1024x768.
Dimensions: With stand 642x444x209 mm, Without stand 570x345x70 mm.
Attention! The T420HW09 V.1 panel of the MYSTERY MTV-4207WH LCD TV is its most expensive component.

REPAIR / SERVICING TV MYSTERY MTV-4203WH

Technical description and composition of the MYSTERY MTV-4203WH TV, type of panel and applicable modules. The composition of the modules.
MYSTERY
Model: MTV-4203WH
Panel: T420HW02 V0
Power Supply (PSU): MLT198L REV: 1.3
PWM Power: MC0628R, NCP1653A (PFC), LD7550 (6pin)
MainBoard: MHDV4201-ZC01-01 (B)
IC MainBoard: ZR39162PQCG, HY5DU281622FTP-4, Winb25X40, 24C64
Tuner: TDFC-G101D
Technical Specifications MTV-4203WH
MYSTERY MTV-4203WH
General recommendations for repairing TV LCD
Repair of the MYSTERY MTV-4203WH TV is best started with a thorough external inspection and troubleshooting. It is advisable to carefully examine the internal and external components. Any external damage can sometimes prompt the repairman to take further steps to determine the malfunction of the TV and localize the defect. In some cases, faulty elements can be seen with the naked eye, for example, charred resistors or swollen metal-ceramic capacitors, or electrolytic in rectifier filters. Ring cracks formed in the soldered terminals of transformers or heating elements of the circuit are also frequent sources of many malfunctions with a variety of external manifestations.
If the MYSTERY MTV-4203WH does not turn on, no control lights on the front panel light up or blink, therefore, there is a very high probability of a power module malfunction. It is advisable to start the troubleshooting of the power supply module by checking the mains fuse. If it is broken, it is necessary to check first of all the power semiconductor elements - rectifier diodes and the power switch of the converter, which are often found in breakdown conditions in such situations.
It should be borne in mind that in the repair practice it is extremely rare that key transistors of the N-FET type fail for no reason that should be looked for by checking other components, for example, a breakdown of the key can provoke faulty elements of the damper circuits, either dried electrolytic capacitors or dangling resistors of the primary circuit of the PSU, involved in the stabilization process. In this case, all semiconductor elements of the strapping of the PWM controller chip are subject to verification, which it is desirable to verify by replacement.
When using a power factor correction unit (PFC) in the power modules, troubleshooting becomes somewhat more complicated and requires additional experience and knowledge of their operation.
Sometimes the MYSTERY MTV-4203WH TV does not have an image, but there is sound, or the image appears and immediately disappears. In this case, there is a high probability of a malfunction of the backlight converter, or of the lamps themselves, which can be checked by replacement. In such cases, it is necessary to verify the serviceability of all electrolytic capacitors of the filter according to the power supply of the inverter itself, including in the power supply unit (power supply unit).
Diagnostics and repair of the inverter are often complicated by the organization of special protection circuits, which is necessary for fire safety and turns off the inverter in any emergency situation, for example, when the lamps are worn or depressurized. Often, to localize a defect, its blocking is required.
In such cases, special care should be taken during diagnostics, and after completion of all repair work it is necessary to restore the circuit and the inverter protection for further safe operation of the TV.
When repairing an MB board, you need to check its components MHDV4201-ZC01-01 (B), Winb25X40, 24C64. Defective items should be replaced.

It should be remembered! Attempts to repair the MYSTERY MTV-4203WH TV, in the absence of the necessary qualifications and experience, are categorically not recommended and are fraught with negative consequences, up to the complete non-repairability of the device!

SCHEMATIC DIAGRAM  / SERVICE MANUAL   ------------------>    MLT198L

 The appearance of the MainBoard MHDV4201-ZC01-01 is shown in the figure below:
MHDV4201-ZC01-01
PSU Advanced
The MTV-4203WH is equipped with an MLT198L power supply module using the PFC (Power Factor Correction) scheme acting as an active filter to eliminate the higher harmonic components of the current consumption. The boost converter based on the NCP1653A PWM controller does not allow the input rectifier filter's electrolytic capacitor to be connected to the network directly through open diodes when the charge current determines its reactance (about 15-30 ohms at a frequency of 50 Hz). As a result of the conversion, the charging current of the capacitor will be determined in such a way that the envelope of the high-frequency pulses of the input current will repeat the phase and shape of the sine wave of the input voltage. The health check of the PFC unit is carried out by measuring the DC voltage on the capacitor of the rectifier network. In operating mode, it should be around 380V, in standby approximately 300V.
The appearance of the power supply
Main features of the MYSTERY MTV-4203WH device:
Installed matrix (LCD panel) T420HW02 V0.
The required supply voltages for all nodes of the MYSTERY MTV-4203WH TV are generated by the MLT198L power supply module or its analogs using microchips MC0628R, NCP1653A (PFC), LD7550 (6pin).
MainBoard - the main board (motherboard) is an MHDV4201-ZC01-01 module, using microchips ZR39162PQCG, HY5DU281622FTP-4, Winb25X40, 24C64 and others.
The TDFC-G101D tuner provides television reception and channel tuning.
Additional technical information about the panel:
Brand: AUO
Model: T420HW02 V0
Type: a-Si TFT-LCD, Panel
Diagonal size: 42 inch
Resolution: 1920x1080, FHD
Display Mode: AMVA, Normally Black, Transmissive
Active Area: 930.24x523.26 mm
Surface: Antiglare (Haze 11%), Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 2500: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 15/5 (Tr / Td); 6.5 (G to G)
Frequency: 60Hz
Lamp Type: 18 pcs CCFL Embedded (Inverter)
Signal Interface: LVDS (2 ch, 8-bit), 51 pins
Voltage: 12.0V
MYSTERY MTV-4203WH TV with T420HW02 LCD display, diagonal size 42 "(106 cm) in 16: 9 format. Screen brightness of 500 cd / m² is ensured by backlighting with CCFL (EEFL) fluorescent lamps. Contrast, as the ratio of maximum brightness to minimum, is 1500: 1. The design and technical capabilities of the TV provide for viewing broadcasts and films in high quality HD with a resolution of 1920x1080 pixels in graphic resolution according to the standard 1080p (Full HD). The input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC. Grafic Digital signal processing and generation takes place in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p.
The power of the sound system 24 W (2x12 W). The audio processing system NICAM STEREO is used.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV x2, audio x3, S-Video x2, component, SCART x2, VGA, HDMI x2. An output for connecting headphones is provided. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector is used on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768, 1360x768.
The power consumed by the TV in the operating mode from the network is 300 watts.
Dimensions: With stand 642x444x209 mm, Without stand 570x345x70 mm.
Attention! The T420HW02 V0 panel of the MYSTERY MTV-4203WH LCD TV is its most expensive component.
Avoid hitting the glass and exerting pressure on the screen to avoid permanent damage to the LCD panel!

REPAIR / SERVICING TV MYSTERY MTV-3212W

Technical description and composition of the MYSTERY MTV-3212W TV, panel type and applicable modules. The composition of the modules.
MYSTERY
Model: MTV-3212W
Chassis / Version: V1L12
Panel: LVW320CSOT C1
T-CON: ST3151A04-1
Inverter (backlight): integrated into PSU
PWM Inverter: MP1006
MOSFET Inverter: FQPF5N60C
Power Supply (PSU): PL3202A
PWM Power: FAN7930 (PFC), LD7536
MOSFET Power: 12A50D, 6A60D
MainBoard: 40-OMS82D-MAD2LG
IC MainBoard: Spi Flash: W25Q32BV, Sound: MSH9010-LF
Tuner: XF-3SA
Control: IR: 40-L32R28-IRB2XG
Technical Specifications MTV-3212W
MYSTERY MTV-3212W
General recommendations for repairing TV LCD
Possible malfunctions
- The MYSTERY MTV-3212W TV does not turn on, does not respond to the remote control and the control panel buttons, does not blink with any indicators.
With such manifestations, a malfunction is most likely to be detected in the PL3202A power supply module. It is then necessary to measure its output voltages and, if they are absent, you should check the power switches (12A50D, 6A60d) and rectifier diodes of the converters for a short circuit probability.
In case of diode breakdowns in the secondary circuits, the converter can operate in emergency short-circuit mode without output voltages, and during short circuit in the power elements of the primary circuit, the mains fuse and / or current sensor at the source of the key usually breaks.
Mos-Fet keys used in switching power supplies usually fail due to a malfunction of other elements that can put it out of operation in key mode or provoke the excess of maximum current or voltage values. It can be supply, damper circuits, or elements of OOS (negative feedback) stabilization. The reason for the breakdown of the power switch may be PWM (PWM) FAN7930 (PFC), LD7536. It is checked only by replacement with a known good one.
- There is no image, but there is sound, it reacts to the remote control. Or the image appears when you turn it on and immediately disappears
The defect can be caused by problems in the nodes or elements of the backlight of the display, or in the power supply of the lamps or the inverter.After checking all the electrolytic capacitors of the filters that are involved in the power supply of the inverter, you must ring in its converter power keys for breakdown and secondary windings of transformers for an open.
Sometimes, for diagnostic purposes, inverter protection must be disabled. In such cases, special care must be taken during work, and the protection circuits should be restored immediately after the repair is completed.
- The indicator on the front panel blinks, the TV does not turn on in the operating mode, it does not respond to the remote control.
Repair or diagnostics of the 40-OMS82D-MAD2LG motherboard should begin by checking the stabilizers and power converters needed to power the chips and matrix. If necessary, update or replace the software (software). Often, the MB (SSB) card must be replaced in case of complex malfunctions that are difficult to detect. When trying to repair, you should check its elements - Spi Flash: W25Q32BV, Sound: MSH9010-LF and failed chips, replace them with new ones. Some malfunctions may be due to the use of BGA soldering technologies in modern Main Board technologies. Typically, such defects are detected by local heating of the chip.
Before changing the XF-3SA tuner, if there is no possibility of tuning to television channels, you should make sure that there are supply voltages that must be measured at the corresponding tuner pins and check the software for correctness. The pulses of the data exchange of the tuner with the processor can be controlled by an oscilloscope

Attention! Users and owners of MTV-3212W TVs who do not have the appropriate qualifications, knowledge and experience are strongly advised against self-repair attempts in order to avoid negative consequences that could lead to complete non-repairability of the device.

SCHEMATIC DIAGRAM  / SERVICE MANUAL   ------------------>    PL3202A Power supply

FIRMWARE FOR SPI FLASH  ----------->   MYSTERY MTV-3212W V1L12, Main: 40-OMS82D-MAD2LG, Panel: LVW320CSOT C1

 The appearance of the MainBoard 40-OMS82D-MAD2LG is shown in the figure below:
40-OMS82D-MAD2LG
40-OMS82D-MAD2LG can be used in TVs:
MYSTERY MTV-2419LW (Panel LC230EUE (SE)(A1) ), MYSTERY MTV-3212W (Panel LVW320CSOT C1).
The appearance of the power supply
Main features of the MYSTERY MTV-3212W device:
Installed matrix (LCD panel) LVW320CSOT C1.
The matrix control uses the Timing Controller (T-CON) ST3151A04-1.
To power the backlight, a converter is used, combined with the power supply, controlled by the MP1006 PWM controller. As power elements of the inverter, keys of the type FQPF5N60C are used.
The required supply voltages for all nodes of the MYSTERY MTV-3212W TV are generated by the PL3202A power supply module or its analogs using FAN7930 (PFC), LD7536 microchips and 12A50D, 6A60D power switches.
MainBoard - the main board (motherboard) is a 40-OMS82D-MAD2LG module, using Spi Flash chips: W25Q32BV, Sound: MSH9010-LF and others.
The XF-3SA tuner provides TV reception and channel tuning.
MYSTERY MTV-3212W TV with LVW320CSOT LCD display, 32 "(81 cm) diagonal size in 16: 9 format. Screen brightness of 300 cd / m² is ensured by backlighting with CCFL (EEFL) fluorescent lamps. Contrast, as the ratio of maximum brightness to minimum, is 4000: 1. It is possible to view images in high quality HD at a resolution of 1366x768 pixels in the standard for graphic decomposition 720p (HD Ready). The input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC. Graphic processing and digital signal generation takes place in st . Ndartah 480i, 480p, 576i, 576p, 720p, 1080i Supported multimedia file formats: MP3, WMA, MPEG4, Xvid, MKV, JPEG.
The power of the sound system 10 W (2x5 W) provides two speakers. The audio processing system NICAM STEREO is used.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, component, VGA, HDMI, USB. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector is used on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768, 1360x768.
The power consumed by the TV in the operating mode from the network is 80 watts.
Dimensions: With stand 642x444x209 mm, Without stand 570x345x70 mm.
Attention! The LVW320CSOT C1 panel of the MYSTERY MTV-3212W LCD TV is its most expensive component.
Avoid hitting the glass and exerting pressure on the screen to avoid permanent damage to the LCD panel!

REPAIR / SERVICING TV MYSTERY MTV-3210W

Technical description and composition of the MYSTERY MTV-3210W TV, panel type and applicable modules. The composition of the modules.
MYSTERY
Model: MTV-3210W
Chassis / Version: V2L03
Panel: LC320WXE SBV2
T-CON: LC320 LC260 6870C-0303B, TL2336ML
Inverter (backlight): integrated into PSU
PWM Inverter: SG3525, AS358A, F2222
Power Supply (PSU): MIP329FL Rev1.0 MIP320FL-T3 KB2150
PWM Power: LD7535 (PWM 6 pin), L6562D (PFC), SG3525 (+ 12V)
MOSFET Power: STD5N52U, F2HNK60Z
MainBoard: CV181H-X
IC MainBoard: 25Q32BVSIG (8)
Tuner: CDT-3SP5I2-37
Technical Specifications MTV-3210W
MYSTERY MTV-3210W
General recommendations for repairing TV LCD
Any repair of electronic equipment begins with an external inspection of the device and diagnostics of the malfunction. In this case, you should visually carefully examine all the elements of the MYSTERY MTV-3210W TV, both internal and external. Often, according to certain external signs, the repairman can draw some conclusions about the reasons for the failure of certain elements of the circuit even before the necessary measurements are made, which will determine the further algorithm for troubleshooting and localizing the defect. Swollen electrolytic or cermet capacitors, charred resistors, ring cracks in the soldered terminals of the elements - all this can significantly help the master to determine the causes and consequences of the malfunction of the TV.
In cases when the MYSTERY MTV-3210W TV does not turn on, does not respond to the remote control and buttons, any indicators on the front panel do not light up and do not blink, and there are no sounds and no signs of operability at all, the MIP329FL Rev1 power supply module is most likely faulty. 0 MIP320FL-T3 KB2150 or, which is much less common, there is no processor power on the motherboard. When diagnosing and repairing the MIP329FL Rev1.0 MIP320FL-T3 KB2150 power supply, it is first necessary to check the fuse, and if it breaks, the power switch and rectifier bridge diodes should be checked for avalanche (thermal) breakdown.
It should be remembered that the N-FET keys used in flyback converters rarely fail for no reason that must be sought by checking other elements of the circuit. Often the breakdown is caused by malfunctions of electrolytic capacitors or semiconductor elements in the primary circuit, or by a break in the resistors in the stabilization circuits. The PWM controller chip can also cause a breakdown of the power switch of the converter.
Diagnostics of power modules with a Power Factor Corrector (CMC) is somewhat more complicated and requires a more detailed approach.
If the MYSTERY MTV-3210W TV does not have an image, but there is sound, the malfunction should be sought in the power converter of the backlight (inverter). It is also necessary to check the serviceability of the electrolytic capacitors of the filter of the secondary rectifiers of the PSU (power supply) for excessive ESR.
The operation of the power circuits of the inverter and the backlight in the normal mode are controlled by special protection, which is organized for fire safety, for example, to disconnect during short circuits or breaks in high-voltage connections or when the lamps are depressurized. This protection makes it difficult to diagnose and repair the inverter.
In such cases, the risk of failure of the power elements of the inverter is most likely, and special care is required during work, and after their completion, it is necessary to restore the protection circuit for further safe operation of the TV by the owner in normal mode.
When trying to repair the motherboard, you should first check the serviceability of linear stabilizers or power converters of microcircuits and, if necessary, update the software (software). Often, the MB (SSB) card must be replaced in case of complex malfunctions that are difficult to detect. When trying to repair, check 25Q32BVSIG.

Once again, we remind TV users: you should not make attempts to repair it yourself without the appropriate knowledge, experience and the necessary qualifications! Trust the repair only to professionals with sufficient experience in the field of electronic equipment repair.

SCHEMATIC DIAGRAM  / SERVICE MANUAL   ------------------>    Mystery MTV-3210W

TPS65161 , 17108E , 6870S-0901B , BUF08822 , SUT290 , ST 402Rb

 The appearance of the MainBoard CV181H-X is shown in the figure below:
The CV181H-X motherboard uses the MST6M181VG processor, combined with a scaler and installed using BGA technology.
It is advisable to start the repair of this MainBoard by checking the linear stabilizers and voltage converters necessary to provide power to the processor nodes: 1.2V, 2.5V, 3.3V. If there is no image, but the display backlight is working properly, it is necessary to check the power of the 5V or 12V LCD panel, depending on the type of panel used, which should be measured directly on the LVDS connector. If the TV does not exit Stand-by mode and does not respond to the remote control and control buttons, if the necessary supply voltages are available, the SPI Flash software should be updated.
CV181H-X can be used in TVs:
IZUMI TLE32H330B (Panel T320XVN01.0), MYSTERY MTV-3210W (Panel LC320WXE SBV2), SUPRA STV-LC27270FL (Panel M270H3-L05).
PSU Advanced
The MIP329FL power module is made using a Power Factor Correction (PFC) scheme to eliminate multiple AC harmonics introduced into the power supply by the device. The PFC assembly is a Step-Up Converter based on the L6562D PWM controller, which evenly distributes high-frequency impulses of the charging current of the electrolytic capacitor of the rectifier filter of the mains voltage over a period of 50 Hz. The current of its charge in this case will already be determined not by its reactance (usually 10-30 ohms for the network frequency), but by the elements of the converter. As a result, a change in the amplitude of the pulses (envelope) of the consumed current of the converter will repeat the shape and phase of the input sinusoidal voltage. The availability of an increased voltage (about + 380V) in the operating mode on the capacitor of the line filter indicates the serviceability of the PFC node.
Main features of the MYSTERY MTV-3210W device:
Installed matrix (LCD panel) LC320WXE SBV2.
The matrix control uses the Timing Controller (T-CON) LC320.
To power the backlight, a converter is used, combined with a power supply, controlled by a PWM controller SG3525, AS358A, F2222.
The required supply voltages for all nodes of the MYSTERY MTV-3210W TV are generated by the MIP329FL power supply module or its analogs using microcircuits LD7535 (PWM 6 pin), L6562D (PFC), SG3525 (+ 12V) and power switches of the STD5N52U, F2HNK60Z type.
MainBoard - the main board (motherboard) is a CV181H-X module, using 25Q32BVSIG microcircuits (8) and others.
The tuner CDT-3SP5I2-37 provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: LG Display
Model: LC320WXE-SBV2
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: S-IPS, Normally Black, Transmissive
Active Area: 697.685x392.256 mm
Surface: Antiglare (Haze 13%), Hard coating (3H)
Brightness: 350 cd / m²
Contrast Ratio: 1200: 1
Display Colors: 16.7M (8-bit)
Response Time: 9 (G to G)
Frequency: 60Hz
Lamp Type: 10 pcs EEFL Without Driver
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V
MYSTERY MTV-3210W TV with LC320WXE LCD display, 32 "(81 cm) diagonal size in 16: 9 format. 450 cd / m² screen brightness is provided by CCFL (EEFL) fluorescent lamps. Dynamic contrast ratio 4000: 1 is provided with special operation control illumination depending on the illuminated areas in the plot. You can view images in high quality HD at a resolution of 1366x768 pixels in the standard for graphic decomposition 720p (HD Ready). The input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC. Graphic processing Digital signal rejection and generation occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i Supported media file formats: MP3, WMA, MPEG4, JPEG.
The power of the speaker system of sound 14 W (2x7 W) provide two speakers. The audio processing system NICAM STEREO is used.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, S-Video, component, SCART, VGA, HDMI x3, USB. An output for connecting headphones is provided. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector is used on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768, 1360x768.
The power consumed by the TV in the operating mode from the network is 150 watts.
Dimensions: With stand 642x444x209 mm, Without stand 570x345x70 mm.
Attention! The MYSTERY MTV-3210W LCD TV panel LC320WXE SBV2 is the most expensive component.
Avoid hitting the glass and exerting pressure on the screen to avoid permanent damage to the LCD panel!

REPAIR / SERVICING TV MYSTERY MTV-3209W

Technical description and composition of the MYSTERY MTV-3209W TV, panel type and applicable modules. The composition of the modules.
MYSTERY
Model: MTV-3209W
Chassis / Version: V4L03
Panel: LC320WXE (SB) (V2)
T-CON: 6870C-0303B (TL2336ML)
Inverter (backlight): integrated into PSU
PWM Inverter: SG3525AN
Power Supply (PSU): MP01009 Rev: 1.3 (PMP1-BCQ244-16995)
PWM Power: L6562D (PFC), LD7535
MOSFET Power: F13NK50Z, F3NK80Z
MainBoard: MST6M181-T2B Rev: A3
IC MainBoard: CPU: MST6E181VS-LF-Z1, Flash: W25Q32BVSIG
Tuner: CDT-3FC2I2-36
Technical Specifications MTV-3209W
MYSTERY MTV-3209W
General recommendations for repairing TV LCD
It is advisable to start repairing MYSTERY with the V4L03 chassis, like other TVs, with a careful examination of the external and internal elements and modules. Sometimes, based on visible changes in the components of the device, it is possible to draw some conclusions and determine the direction of further troubleshooting even before the necessary measurements are taken. If ring cracks are detected in the soldering of the terminals of the elements or dangling connecting tracks, swollen capacitors or charred resistors - all this can be characteristic signs of the causes or consequences of an already known typical malfunction.
In the absence of any signs of operability, when the MYSTERY MTV-3209W does not turn on and does not signal anything with the control lights on the panel, there is a possibility of a malfunction of the power module MP01009, Rev: 1.3 (PMP1-BCQ244-16995 of the TV. With the same manifestations, it may be malfunctioning and a power regulator of the control processor on the motherboard.When repairing the power supply, it is advisable to start the diagnostics by checking the mains fuse and the electrolytic capacitors of the filters of the secondary rectifiers of the converter. fuse failure, the reason should be sought in the power semiconductor elements of the pulse converter of the main power supply.First of all, check the diodes of the rectifier bridge of the mains voltage and the power key (s) of the converter.
It should be borne in mind that in the practice of repair it is extremely rare that key transistors in switching power supplies (SMPS) fail for no reason that should be sought by checking other components, for example, a breakdown of the key can provoke faulty elements of the damper circuits, or dried electrolytic capacitors or dangling primary resistors BP circuits involved in the stabilization process. In this case, all semiconductor elements of the strapping of the PWM controller chip are subject to verification, which it is desirable to verify by replacement.
In cases where the MYSTERY MTV-3209W TV has lost an image, and the sound is there and all other functions are operational, there is a possibility of an inverter (converter for powering the backlight) malfunction. When you turn on the TV, the image may appear briefly and immediately disappear. It must be borne in mind that with such manifestations, the lamps themselves also fail, the malfunction of which can be detected by replacement, by connecting to the connectors for diagnostics that are known to be serviceable and suitable in power. If in diagnosing a malfunction, it is necessary to disable the inverter protection, there is a risk of failure of the power elements of the inverter, and special care is required during work, and after their completion, it is necessary to restore the protection circuits for further safe operation of the TV by the owner in normal mode.
If the motherboard MST6M181-T2B, Rev: A3 is faulty, first of all it is necessary to check all the linear stabilizers or power converters of its chips, and also, if necessary, update the software. Sometimes you can check the health of MB only by replacement. In cases of attempts to repair the MB (SSB) board, it is necessary to check the health of its elements - CPU: MST6E181VS-LF-Z1, Flash: W25Q32BVSIG which may require replacement with new ones. If a BGA processor is installed, there is a possibility of a violation of the soldering of the contacts of its conclusions with the board (it is diagnosed by heating).

Owners and users of the MYSTERY MTV-3209W TV must remember that self-repair without special knowledge, skills and qualifications can be fraught with negative consequences that can lead to complete non-repairability of the device!

FIRMWARE FOR SPI FLASH  ----------->   MYSTERY MTV-3209W (V4L03), Main MST6M181-T2B Rev: A3, PANEL LC320WXE (SB)(V2).

SCHEMATIC DIAGRAM  / SERVICE MANUAL   ------------------>    MP01009 Power supply

 In cases where there is a malfunction in the SPI FLASH software and a microcircuit manufacturer Winbond is installed, we recommend replacing it with a new one. Sometimes faulty SPI Winbond microcircuits can be restored for a while after being heated by a hairdryer or a lighter, which makes it possible to read the properly installed software.

Repair MainBoard
The appearance of the MainBoard MST6M181-T2B is shown in the figure below:
MST6M181-T2B
PSU Advanced
The MP01009 power module is designed using a Power Factor Correction (PFC) scheme to eliminate multiple AC harmonics introduced into the power supply by the device. The PFC assembly is a Step-Up Converter based on the L6562D PWM controller, which evenly distributes high-frequency impulses of the charging current of the electrolytic capacitor of the rectifier filter of the mains voltage over a period of 50 Hz. The current of its charge in this case will already be determined not by its reactance (usually 10-30 ohms for the network frequency), but by the elements of the converter. As a result, a change in the amplitude of the pulses (envelope) of the consumed current of the converter will repeat the shape and phase of the input sinusoidal voltage. The availability of an increased voltage (about + 380V) in the operating mode on the capacitor of the line filter indicates the serviceability of the PFC node.
The appearance of the power supply
Main features of the MYSTERY MTV-3209W device:
Installed matrix (LCD panel) LC320WXE (SB) (V2).
The matrix control uses the Timing Controller (T-CON) 6870C-0303B.
To power the backlight, a converter is used, combined with the power supply, controlled by the SG3525AN PWM controller.
The necessary supply voltages for all nodes of the MYSTERY MTV-3209W TV are generated by the MP01009 power module or its analogs using L6562D (PFC), LD7535 microcircuits and power switches of the F13NK50Z, F3NK80Z type.
MainBoard - the main board (motherboard) is an MST6M181-T2B module using CPU chips: MST6E181VS-LF-Z1, Flash: W25Q32BVSIG and others.
Tuner CDT-3FC2I2-36 provides the reception of television programs and tuning to channels.
Information from an alternative source:
LCD Mystery MTV-3209W (V4L03)
Panel Type (Matrix): LC320WXE (SB) (V2),
Motherboard: MST6M181-T2B, Rev: A3, MST6E181VS-LF-Z1, W25Q32BVSIG, CDT-3FC2I2-36,
T-con: P / N 6870C-0303B
PSU & Invertor: MP01009 Rev: 1.3 PMP1-BCQ244-16995
Additional technical information about the panel:
Brand: LG Display
Model: LC320WXE-SBV2
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: S-IPS, Normally Black, Transmissive
Active Area: 697.685x392.256 mm
Surface: Antiglare (Haze 13%), Hard coating (3H)
Brightness: 350 cd / m²
Contrast Ratio: 1200: 1
Display Colors: 16.7M (8-bit)
Response Time: 9 (G to G)
Frequency: 60Hz
Lamp Type: 10 pcs EEFL Without Driver
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V


 MYSTERY MTV-3209W TV with LC320WXE LCD display, 32 "(81 cm) diagonal size in 16: 9 format. 450 cd / m² screen brightness is provided by CCFL (EEFL) fluorescent lamps. Dynamic contrast ratio 3000: 1 is provided with special operation control illumination depending on the illuminance of areas in the plot. You can view images in high quality HD at a resolution of 1366x768 pixels in the standard for graphic decomposition 720p (HD Ready). The input high-frequency or video signal can be processed in analog systems PAL, SECAM. and digital signal generation occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i. Supported media file formats: MP3, MPEG4, JPEG.
The power of the sound system 20 W (2x10 W) provides two speakers. The audio processing system NICAM STEREO is used.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x2, component, SCART, VGA, HDMI x3, USB. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector is used on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768.
The power consumed by the TV in the operating mode from the network is 100 watts.
Dimensions: With stand 642x444x209 mm, Without stand 570x345x70 mm.
Attention! The LC320WXE (SB) (V2) panel of the MYSTERY MTV-3209W LCD TV is its most expensive component.
Avoid hitting the glass and exerting pressure on the screen to avoid permanent damage to the LCD panel!

REPAIR / SERVICING TV MYSTERY MTV-3208WH

Technical description and composition of the MYSTERY MTV-3208WH TV, type of panel and applicable modules. The composition of the modules.
MYSTERY
Model: MTV-3208WH
Chassis / Version: V4L05
Panel: V315H1-L02
Inverter (backlight): T871029.28
Power Supply (PSU): FSP160-4H02
MainBoard: MSTV3208-ZC01-01
IC MainBoard: CPU: MST6E48RHS-LF-Z1, SPI FLASH: SP25FL032K
Tuner: F21WT-3BAR-E
Control: Service Login: INPUT 2580
Technical Specifications MTV-3208WH
MYSTERY MTV-3208WH
General recommendations for repairing TV LCD
Repair of the MYSTERY TV with the V4L05 chassis should begin with a fault diagnosis, which involves a careful examination of the external and internal elements of the device. Sometimes, based on visible changes in the components of the device, it is possible to draw some conclusions and determine the direction of further troubleshooting even before the necessary measurements are taken. If ring cracks are detected in the soldering of the terminals of the elements or dangling connecting tracks, swollen capacitors or charred resistors - all this can be characteristic signs of the causes or consequences of an already known typical malfunction.
In cases when the MYSTERY MTV-3208WH TV does not turn on, does not respond to the remote control and buttons, no indicators on the front panel light up or blink, and there are no sounds and no signs of operability when turning on, the power module is most likely faulty or there is no power processor on the motherboard (a typical defect of some MYSTERY TVs). First of all, it is necessary to replace the swollen capacitors of the rectifier filters, if any. If the mains fuse is cut off in the power supply, in most cases a breakdown of the power key (s) is detected, which can be integrated with the PWM controller, or a separate field-effect transistor can be used. The rectifier bridge diodes and the electrolytic capacitor of the mains rectifier filter should also be checked.
If a breakdown of the power switch is detected, it should be remembered that in a switching power supply (IIP) it does not fail by itself without any reasons that should be sought by checking other elements of the primary circuit - electrolytic capacitors, a PWM controller, which can only be checked replacement, as well as other semiconductor elements (diodes, transistors, zener diodes).
Sometimes the MYSTERY MTV-3208WH TV does not have an image, but there is sound, or the image appears and immediately disappears. In this case, there is a high probability of a malfunction of the backlight converter, or of the lamps themselves, which can be checked by replacement. In such cases, it is necessary to verify the serviceability of all electrolytic capacitors of the filter according to the power supply of the inverter itself, including in the power supply unit (power supply unit). It is necessary to take into account that in cases of inverter protection shutdown (in order to be able to diagnose) there is a risk of failure of the inverter power elements and take special care. After carrying out repairs, the protection circuit must be restored for further safe operation of the TV.
On the MSTV3208-ZC01-01 motherboard, in case of a malfunction, you should first check the performance of all stabilizers or power converters of the microcircuits and, if necessary, update the software (software). If it is not possible to replace the MB board (SSB), you need to check the health of its elements - CPU: MST6E48RHS-LF-Z1, SPI FLASH: SP25FL032K. Defective components should be replaced.

Attention to the owners! Attempts to repair the TV MYSTERY MTV-3208WH on its own are not recommended by the manufacturer and can lead to serious negative consequences!

SCHEMATIC DIAGRAM  / SERVICE MANUAL   ------------------>    MYSTERY Main MSTV3208-ZC01-01

FIRMWARE FOR SPI FLASH  ----------->   MYSTERY MTV-3208WH(V4L05), Main MSTV3208-ZC01-01, Panel V315H01-L02

 The appearance of the MainBoard MSTV3208-ZC01-01 is shown in the figure below:
The motherboard MSTV3208-ZC01-01 is made using the multifunction microprocessor MST6M48RHS-LF, which includes a scaler (graphic controller-scaler). To organize the work of the processor, the external RAM H5PS5162GFR 512Mb DDR2 SDRAM in BGA version and SPI FLASH 25Q32 (4Mb) are used. To provide power to the processor core, a DC / DC converter with an output voltage of 1.2V is used, assembled on the basis of the MP1482 PWM controller. Other nodes of the processor are powered by linear voltage stabilizers 2.5V, 3.3V. 1.8V voltage is used to power the DDR RAM, 3.3V is needed for the SPI FLASH ROM.
It is advisable to start the MainBoard repair by checking the supply voltage in Stand-by mode 5V and 3.3V. In operating mode, check the operation of all linear stabilizers and the DC / DC converter. If there is a backlight and there is no image, you need to check the power of the 5V or 12V panel (depending on the type of LCD panel), which should be present directly on the LVDS connector.
If the indicator signals Stand-by mode and does not respond to the remote control and control buttons, it is recommended to update the SPI Flash software. Taking into account the glitchiness of Winbond SPI chips, it is advisable to replace them with new ones in case of software failures.
MSTV3208-ZC01-01 can be used in TVs:
BBK LEM2648SD (Panel V260B1-LE9 revC1), BBK LEM3248SD (Panel HV320WX2-130 (B3)), BBK LMP3229HDU Ver1 (Panel T315HW02 v.7), BBK LMP3229HDU Ver2 (Panel T315HW04 V7), BBK LEM2649HD (Panel V260H1-LE7 Rev C1), MYSTERY MTV-2607W (Panel V260H1-L05), MYSTERY MTV-3206 (Panel T315XW04 V.7), MYSTERY MTV-3207W (Panel V315B3-L04 rev.c1), MYSTERY MTV-3213LW (Panel T315XW04 V.8), MYSTERY MTV-2220LW (Panel CLAA215FA15), MYSTERY MTV-3207W (Panel HV320WX2-110), MYSTERY MTV-2614LW (Panel V260H1-LE6), MYSTERY MTV-3208WH (Panel V315H1-L02), MYSTERY MTV-2411LW (Panel V236H1-LE5 Rev.C1), MYSTERY MTV-2618LW (Panel V260B2-LE11), MYSTERY MTV-2211LW (Panel CLAA215FA10), MYSTERY MTV-2414LW (Panel V236H1-L01), MYSTERY MTV-2611LW (Panel V260H1-LE6 Rev.C1), MYSTERY MTV-3206W (Panel T315XW03 V.3), MYSTERY MTV-3211LW (Panel V315H3-LE2 Rev. C1), MYSTERY MTV-4207WH (Panel T420HW09 V.1), MYSTERY MTV-1921LD (Panel HT185WX3).
Main features of the MYSTERY MTV-3208WH device:
Installed matrix (LCD panel) V315H1-L02.
To power the backlight used inverter T871029.28.
The formation of the necessary supply voltages for all nodes of the MYSTERY MTV-3208WH TV is carried out by the FSP160-4H02 power supply module, or its analogs.
MainBoard - the main board (motherboard) is an MSTV3208-ZC01-01 module, using CPU chips: MST6E48RHS-LF-Z1, SPI FLASH: SP25FL032K and others.
The F21WT-3BAR-E tuner provides television reception and channel tuning.
Additional technical information about the panel:
Brand: CMO
Model: V315H1-L02
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1920x1080, FHD
Display Mode: Super MVA, Normally Black, Transmissive
Active Area: 698.4x392.85 mm
Surface: Antiglare (Haze 11%), Hard coating (3H)
Brightness: 450 cd / m²
Contrast Ratio: 4000: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 6.5 (G to G)
Frequency: 60Hz
Lamp Type: 4 pcs CCFL Embedded (Inverter)
Signal Interface: LVDS (2 ch, 8-bit), 51 pins
Voltage: 12.0V
MYSTERY MTV-3208WH TV with V315H1-L02 LCD display, 32 "(81 cm) diagonal size in 16: 9 format. 450 cd / m² screen brightness is provided by CCFL (EEFL) fluorescent lamps. Dynamic contrast ratio 4000: 1 is provided by special The design and technical capabilities of the TV provide for viewing broadcasts and films in high quality HD with a resolution of 1920x1080 pixels in a graphic resolution according to the standard 1080p (Full HD). Input high-frequency or video signal can . T be processed by analog systems, PAL, SECAM, NTSC Image processing and generation of the digital signal occurs in the standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p Supported multimedia file formats:. MP3, JPEG.
The power of the speaker system of sound 14 W (2x7 W) provide two speakers. It uses a NICAM stereo signal processing system and Sound Surround.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x2, S-Video, component, SCART, RGB, VGA, HDMI x2, USB. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector is used on the TV case, this interface supports resolutions: 640x480, 800x600, 1024x768, 1360x768, 1920x1080.
The power consumed by the TV in the operating mode from the network is 150 watts.
Dimensions: With stand 642x444x209 mm, Without stand 570x345x70 mm.

REPAIR / SERVICING TV MYSTERY MTV-3207W

Technical description and composition of the MYSTERY MTV-3207W TV, type of panel and applicable modules. The composition of the modules.
MYSTERY
Model: MTV-3207W
Panel: V315B3-L04 rev.c1
T-CON: V315B3-C04
Inverter (backlight): T87I029.14
PWM Inverter: BD9215FV
MOSFET Inverter: AOD4184
Power Supply (PSU): MLT666
PWM Power: LD7535BL (PWM 6 pin)
MainBoard: 228-100326009 V.100420 // MSTV3208-ZC01-01
IC MainBoard: h5du2562gtr-e3c
Tuner: F21WT-3BAR-E
MYSTERY
Model: MTV-3207W
Chassis / Version: MSTV3208-ZC01-01
Panel: HV320WX2-110
T-CON: HV320WXC-1007061 NT71180MFG
Inverter (backlight): TV3203-ZC02-02
PWM Inverter: OB3328
MOSFET Inverter: Q209, Q210: APM4015P; Q211, Q212: APM4010N
Power Supply (PSU): TV3206-ZC02-01
MainBoard: MSTV3208-ZC01-01
IC MainBoard: CPU: MST6E48RHS-LF-Z1, SPI Fash: FL032K1F, DDR: H5P95162FFR, Sound: TPA3113D2
Tuner: F21WT-3BAR-E
Technical Specifications MTV-3207W
MYSTERY MTV-3207W
General recommendations for repairing TV LCD
Repair of the MYSTERY MTV-3207W TV is recommended to begin with a thorough external inspection and troubleshooting. It is advisable to carefully examine the internal and external components. Sometimes, only by some signs can we determine the further direction of the localization of the fault. In most cases, the repairman can guess the causes of the defect and possible consequences from the characteristic signs of typical TV defects, for example, ring cracks formed in the soldering of the element leads, swollen rectifier filter capacitors, charred resistors and other circuit elements.
If the TV does not turn on, no indicators on its front panel are lit or blinking. Also, if the TV does not respond to the remote control and the buttons, does not make any sounds or any signs of operability when turned on, there is a certain chance that the MLT666 power supply module is defective and needs repair. Sometimes with similar manifestations a problem can only occur in the absence of processor power, but this happens much less often. The diagnostics of the power supply should always be started by checking the fuse and, if it is broken, it is first necessary to check the rectifier bridge diodes and the power switch for the possibility of an avalanche or thermal breakdown.
It should be borne in mind that in the repair practice it is extremely rare that key transistors of the N-FET type fail for no reason that should be looked for by checking other components, for example, a breakdown of the key can provoke faulty elements of the damper circuits, either dried electrolytic capacitors or dangling resistors of the primary circuit of the PSU, involved in the stabilization process. In this case, all semiconductor elements of the strapping of the LD7535BL PWM controller microcircuit are subject to verification, which it is desirable to verify by replacement.
It is somewhat more difficult to look for a malfunction in the converter of the power module with an active KKM (power factor corrector).
If there is no image when you turn on the MYSTERY MTV-3207W, or it appears for a second and disappears completely, but there is sound, most likely either the backlight lamps or their power converter (inverter) are faulty. It is necessary to check the electrolytic capacitors of the filter of the secondary rectifiers in the general power supply unit.
Repair of the inverter can often be somewhat complicated by the use of special protection circuits, which are designed to disconnect it in emergency cases for fire safety during depressurization of lamps, or short circuits or breaks in high-voltage circuits and connections. Sometimes it becomes necessary for diagnostic purposes to block the protection circuits to be able to make the necessary measurements at the control points of the circuit.
In these cases, special care must be taken in view of the risk of failure of the power elements. After completing all repair work, it is imperative to restore the protection circuits for full and safe further operation of the TV by the user.
Repair of the MSTV3208-ZC01-01 motherboard must begin with the diagnosis and verification of all linear stabilizers or power converters of its microcircuits. Sometimes it may be necessary to update the software (software) - flashing FLASH or EEPROM. When repairing an MB board, you need to check its components - CPU: MST6E48RHS-LF-Z1, Fash: FL032K1F, Sound: TPA3113D2, Tuner: F21WT-3BAR-E. Defective items should be replaced.

Once again, remind users! Attempts to self-repair a TV MYSTERY MTV-3207W without the appropriate qualifications and experience can lead to its complete non-repairability!

SCHEMATIC DIAGRAM  / SERVICE MANUAL   ------------------>    TV3206-ZC02-01

SCHEMATIC DIAGRAM  / SERVICE MANUAL   ------------------>    MLT-666

SCHEMATIC DIAGRAM  / SERVICE MANUAL   ------------------>    MSTV3208-ZC01-01

FIRMWARE FOR SPI FLASH  ----------->   MYSTERY MTV-3207W (V5K03). MB: MSTV3208-ZC01-01, CPU: MST6M48RXS-LF-SJ, FLASH: Q32A-100HIP, Panel: T315XW03 V.3

 The appearance of the MainBoard MSTV3208-ZC01-01 is shown in the figure below:
The motherboard MSTV3208-ZC01-01 is made using the multifunction microprocessor MST6M48RHS-LF, which includes a scaler (graphic controller-scaler). To organize the work of the processor, the external RAM H5PS5162GFR 512Mb DDR2 SDRAM in BGA version and SPI FLASH 25Q32 (4Mb) are used. To provide power to the processor core, a DC / DC converter with an output voltage of 1.2V is used, assembled on the basis of the MP1482 PWM controller. Other nodes of the processor are powered by linear voltage stabilizers 2.5V, 3.3V. 1.8V voltage is used to power the DDR RAM, 3.3V is needed for the SPI FLASH ROM.
It is advisable to start the MainBoard repair by checking the supply voltage in Stand-by mode 5V and 3.3V. In operating mode, check the operation of all linear stabilizers and the DC / DC converter. If there is a backlight and there is no image, you need to check the power of the 5V or 12V panel (depending on the type of LCD panel), which should be present directly on the LVDS connector.
If the indicator signals Stand-by mode and does not respond to the remote control and control buttons, it is recommended to update the SPI Flash software. Taking into account the glitchiness of Winbond SPI chips, it is advisable to replace them with new ones in case of software failures.
MSTV3208-ZC01-01 can be used in TVs:
BBK LEM2648SD (Panel V260B1-LE9 revC1), BBK LEM3248SD (Panel HV320WX2-130 (B3)), BBK LMP3229HDU Ver1 (Panel T315HW02 v.7), BBK LMP3229HDU Ver2 (Panel T315HW04 V7), BBK LEM2649HD (Panel V260H1-LE7 Rev C1), MYSTERY MTV-2607W (Panel V260H1-L05), MYSTERY MTV-3206 (Panel T315XW04 V.7), MYSTERY MTV-3207W (Panel V315B3-L04 rev.c1), MYSTERY MTV-3213LW (Panel T315XW04 V.8), MYSTERY MTV-2220LW (Panel CLAA215FA15), MYSTERY MTV-3207W (Panel HV320WX2-110), MYSTERY MTV-2614LW (Panel V260H1-LE6), MYSTERY MTV-3208WH (Panel V315H1-L02), MYSTERY MTV-2411LW (Panel V236H1-LE5 Rev.C1), MYSTERY MTV-2618LW (Panel V260B2-LE11), MYSTERY MTV-2211LW (Panel CLAA215FA10), MYSTERY MTV-2414LW (Panel V236H1-L01), MYSTERY MTV-2611LW (Panel V260H1-LE6 Rev.C1), MYSTERY MTV-3206W (Panel T315XW03 V.3), MYSTERY MTV-3211LW (Panel V315H3-LE2 Rev. C1), MYSTERY MTV-4207WH (Panel T420HW09 V.1), MYSTERY MTV-1921LD (Panel HT185WX3).
Main features of the MYSTERY MTV-3207W device:
Installed matrix (LCD panel) HV320WX2-110.
The matrix control uses the Timing Controller (T-CON) HV320WXC-1007061.
To power the backlight, the inverter TV3203-ZC02-02 is used, it is controlled by the PWM controller OB3328. As power elements of the inverter, keys of the type Q209, Q210 are used: APM4015P; Q211, Q212: APM4010N.
The formation of the necessary supply voltages for all nodes of the MYSTERY MTV-3207W TV is carried out by the TV3206-ZC02-01 power supply module, or its analogs.
MainBoard - the main board (motherboard) is an MSTV3208-ZC01-01 module using CPU chips: MST6E48RHS-LF-Z1, SPI Fash: FL032K1F, DDR: H5P95162FFR, Sound: TPA3113D2 and others.
The F21WT-3BAR-E tuner provides television reception and channel tuning.
Information from an alternative source:
MYSTERY MTV-3207W Version V7L03
Panel Type (Matrix): T315XW04 V.7
Motherboard: MSTV3208-ZC01-01, Tuner: F21WT-3BAR-E
Invertor: TV3202-ZC02-02 (A) P / N: 303C3203063, B40695, AV IN: TV3211-ZC15-01 (A) P / N: 303C3211054, AV IN: TV3211-ZC22-01 (B) P / N: 303C3211053
PSU: KB-5150 TV3206-ZC02-01 (A) P / N: 303C3206063, OB6563CP, B39849T
PSU: TV3206-ZC02-01 (A) P / N: 303C3206063 Scheme TV3206-ZC02-01,
MYSTERY MTV-3207W TV with HV320WX2-110 LCD, 32 "(81 cm) diagonal size in 16: 9 format. 300 cd / m² screen brightness is provided by CCFL (EEFL) fluorescent lamps. Contrast as the ratio of maximum brightness to the minimum is 1000: 1. You can view images in high quality HD at a resolution of 1366x768 pixels in the standard for graphic decomposition 720p (HD Ready). The input high-frequency or video signal can be processed in analog systems PAL, SECAM, NTSC. Graphic processing and digital signal generation happens in with . Andartah 480i, 480p, 576i, 576p, 720p, 1080i Supported multimedia file formats: MP3, JPEG.
The power of the sound speaker system 16 W (2x8 W) is provided by two speakers. The audio processing system NICAM STEREO is used.
The external interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV x2, audio x3, component, SCART, RGB, VGA, HDMI x2, USB. To connect a computer or laptop to this TV model, a VGA (D-Sub 15) connector is used on the TV case, this interface supports resolutions: 800x600, 1024x768.
The power consumed by the TV in the operating mode from the network is 50 watts.
Dimensions: With stand 642x444x209 mm, Without stand 570x345x70 mm.

REPAIR / SERVICING TV MYSTERY MTV-3206W

Technical description and composition of the MYSTERY MTV-3206W TV, type of panel and applicable modules. The composition of the modules.
MYSTERY
Model: MTV-3206W
Chassis / Version: MSTV3208-ZC01-01
Panel: T315XW03 V.3 // T315XW02 V.T
Inverter (backlight): T73I041.00 REV.0 GP // V225-3xx (4H + V2258.041-C)
Power Supply (PSU): TV3201-ZC02-03 (E) P / N 303C3201069
PWM Power: FAN7530, ICE3B0565J, FSFR1700
MainBoard: MSTV3208-ZC01-01
IC MainBoard: Cpu: MST6M48RHS-LF-SJ, Spi Flash: EN25Q32A-100HIP
Tuner: F21WT-3BAR-E
Control: IR: TV3205-ZC25-01 303C3205231
Technical Specifications MTV-3206W
MYSTERY MTV-3206W
General recommendations for repairing TV LCD
Repair of the MYSTERY TV with the MSTV3208-ZC01-01 chassis should begin with a careful external inspection of all its components and modules. Visible damage to elements can sometimes indicate the direction of the search for a defect even before the necessary measurements are taken. In most cases, the repairman can guess the causes of the defect and possible consequences from the characteristic signs of typical TV defects, for example, ring cracks formed in the soldering of the element leads, swollen rectifier filter capacitors, charred resistors and other circuit elements.
If the power supply module malfunctions, the external manifestations may be different, for example, the MYSTERY MTV-3206W does not turn on at all and there is no indication of the indicator lights on the front panel. With the same symptoms, the stabilizer (converter) of the power supply to the control processor may be faulty. When repairing the power supply, it is advisable to start the diagnostics by checking the mains fuse and the electrolytic capacitors of the filters of the converter secondary rectifiers. In the event of a fuse breaking, the reason should be sought in the power semiconductor elements of the pulse converter of the main power supply. First of all, it is necessary to check the diodes of the bridge of the rectifier of the mains voltage and the power switch (s) of the converter.
If a breakdown of the power switch is detected, it should be remembered that in a switching power supply (IIP) it does not fail by itself without any reasons that should be sought by checking other elements of the primary circuit - electrolytic capacitors, a PWM controller, which can only be checked replacement, as well as other semiconductor elements (diodes, transistors, zener diodes).
If the MYSTERY MTV-3206W does not have an image, but there is sound, there is a possibility of a malfunction of the backlight or power converter. You should also make sure that the electrolytic capacitors of the secondary rectifiers of the common power supply are working. It should be remembered that when the protection is turned off in order to diagnose a malfunction, there is always a risk of failure of the power elements of the inverter. After repair, it is necessary to restore all standard converter protection circuits.
Repair or diagnostics of the MSTV3208-ZC01-01 motherboard should begin by checking the stabilizers or power converters of its microcircuits. If necessary, you should update the software (software). When repairing an MB board, you need to check its components Cpu: MST6M48RHS-LF-SJ, Spi Flash: EN25Q32A-100HIP. Defective items should be replaced. If BGA chips are installed, their malfunction is usually localized by heating. If chips with BGA soldering technology are used, a problem in its implementation is detected by the local heating of the chip.

Owners and users of the MYSTERY MTV-3206W TV must remember that self-repair without special knowledge, skills and qualifications can be fraught with negative consequences that can lead to complete non-repairability of the device!

FIRMWARE FOR SPI FLASH  ----------->   MYSTERY MTV-3206W, Main: MSTV3208-ZC01-01, Panel: T315XW03 V.3

 The appearance of the MainBoard MSTV3208-ZC01-01 is shown in the figure below:
The motherboard MSTV3208-ZC01-01 is made using the multifunction microprocessor MST6M48RHS-LF, which includes a scaler (graphic controller-scaler). To organize the work of the processor, the external RAM H5PS5162GFR 512Mb DDR2 SDRAM in BGA version and SPI FLASH 25Q32 (4Mb) are used. To provide power to the processor core, a DC / DC converter with an output voltage of 1.2V is used, assembled on the basis of the MP1482 PWM controller. Other nodes of the processor are powered by linear voltage stabilizers 2.5V, 3.3V. 1.8V voltage is used to power the DDR RAM, 3.3V is needed for the SPI FLASH ROM.
It is advisable to start the MainBoard repair by checking the supply voltage in Stand-by mode 5V and 3.3V. In operating mode, check the operation of all linear stabilizers and the DC / DC converter. If there is a backlight and there is no image, you need to check the power of the 5V or 12V panel (depending on the type of LCD panel), which should be present directly on the LVDS connector.
If the indicator signals Stand-by mode and does not respond to the remote control and control buttons, it is recommended to update the SPI Flash software. Taking into account the glitchiness of Winbond SPI chips, it is advisable to replace them with new ones in case of software failures.
MSTV3208-ZC01-01 can be used in TVs:
BBK LEM2648SD (Panel V260B1-LE9 revC1), BBK LEM3248SD (Panel HV320WX2-130 (B3)), BBK LMP3229HDU Ver1 (Panel T315HW02 v.7), BBK LMP3229HDU Ver2 (Panel T315HW04 V7), BBK LEM2649HD (Panel V260H1-LE7 Rev C1), MYSTERY MTV-2607W (Panel V260H1-L05), MYSTERY MTV-3206 (Panel T315XW04 V.7), MYSTERY MTV-3207W (Panel V315B3-L04 rev.c1), MYSTERY MTV-3213LW (Panel T315XW04 V.8), MYSTERY MTV-2220LW (Panel CLAA215FA15), MYSTERY MTV-3207W (Panel HV320WX2-110), MYSTERY MTV-2614LW (Panel V260H1-LE6), MYSTERY MTV-3208WH (Panel V315H1-L02), MYSTERY MTV-2411LW (Panel V236H1-LE5 Rev.C1), MYSTERY MTV-2618LW (Panel V260B2-LE11), MYSTERY MTV-2211LW (Panel CLAA215FA10), MYSTERY MTV-2414LW (Panel V236H1-L01), MYSTERY MTV-2611LW (Panel V260H1-LE6 Rev.C1), MYSTERY MTV-3206W (Panel T315XW03 V.3), MYSTERY MTV-3211LW (Panel V315H3-LE2 Rev. C1), MYSTERY MTV-4207WH (Panel T420HW09 V.1), MYSTERY MTV-1921LD (Panel HT185WX3).
The appearance of the power supply
Main features of the MYSTERY MTV-3206W device:
Installed matrix (LCD panel) T315XW03 V.3 or T315XW02 V.T.
The inverter T73I041.00 is used to power the backlight.
The required supply voltages for all nodes of the MYSTERY MTV-3206W TV are generated by the TV3201-ZC02-03 power supply module or its analogs using FAN7530, ICE3B0565J, FSFR1700 microcircuits.
MainBoard - the main board (motherboard) is an MSTV3208-ZC01-01 module, using Cpu chips: MST6M48RHS-LF-SJ, Spi Flash: EN25Q32A-100HIP and others.
The F21WT-3BAR-E tuner provides television reception and channel tuning.
Additional technical information about the panel:
Brand: AUO
Model: T315XW03 V3
Type: a-Si TFT-LCD, Panel
Diagonal size: 31.5 inch
Resolution: 1366x768, WXGA
Display Mode: VA, Normally Black, Transmissive
Active Area: 697.68x392.26 mm
Surface: Antiglare (Haze 2%), Hard coating (3H)
Brightness: 420 cd / m²
Contrast Ratio: 3000: 1
Display Colors: 16.7M (8-bit), CIE1931 72%
Response Time: 6.5 (G to G)
Frequency: 60Hz
Lamp Type: 4 pcs CCFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 12.0V