Technical description and composition of the MYSTERY MTV-4018LW TV, type of panel and applicable modules. The composition of the modules.MYSTERY LED
Model: MTV-4018LW
Chassis / Version: V1L07
Panel: T390HVN01.0
LED driver (backlight): TV3232-ZC02-01 (A)
PWM LED driver: AP3608EM, AP3039AM
MOSFET LED driver: B6010D
Power Supply (PSU): TV3205-ZC02-01
PWM Power: ICE3B0565J, LD7550BL (6pin)
MainBoard: MSDV3209-ZC01-01 (D)
IC MainBoard: CPU: MSD308PX, DDR: W9751G6IB, SPI: SPI Flash: MX25L6406EMI-12G, Sound: TPA3113D2
Tuner: DT58WT-3RB-E
Technical Specifications MTV-4018LW
MYSTERY MTV-4018LW
General repair guidelines for TV LCD LED
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-4018LW TV, as well as the external elements of the case. According to some external signs of a change in the state of some elements, it is sometimes possible to make assumptions about the nature of the defect, as well as determine the further direction of the troubleshooting. Experienced repairmen are often aware of the causes of the defect and the possible consequences, for example, from ring cracks in the soldering of the leads of the elements, as well as from swollen capacitors or resistors burnt to coal dust and other external indirect signs.
If the MTV-4018LW 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 module. In some cases, only the stabilizer or power converter of the control processor may be faulty, which is typical for some MYSTERY models. It is advisable to start the troubleshooting of the power supply module by checking the state of the electrolytic capacitors of the rectifier filters and the mains fuse. Defective capacitors should be replaced. If the mains fuse is broken, it is necessary to check first of all the power semiconductor elements - rectifier diodes and transistors, which are often found in such a state of breakdown.
Mos-Fet keys used in switching power supplies (SMPS) rarely fail for no reason to look for when checking other circuit elements. 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 ICE3B0565J LD7550BL 6pin PWM controller chip can also cause a breakdown of the power switch of the converter.
If the MYSTERY MTV-4018LW does not have an image, but there is sound, the backlight LEDs on the T390HVN01.0 panel or their power converter may malfunction. You should also make sure that the electrolytic capacitors of the secondary rectifiers of the common power supply are working.
Often there is a need for disassembling the panel to check the health of the LEDs, as well as contact connections in the connectors and soldering.
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.
In cases of complex repairs of MB (SSB) and in the presence of the necessary skills and equipment, sometimes it may be necessary to replace its chips MSDV3209-ZC01-01 TPA3113D2 and other possible faulty components. Malfunctions associated with the application of BGA soldering technologies are usually easily diagnosed by the heating method.
If there is no reception of television channels, but the TV is working properly from external devices, first of all it is necessary to check the voltage of the varicap tuner DT58WT-3RB-E, which is usually within 30-33V, as well as other supply voltages at the terminals of the tuner.
Once again, remind users! Attempts to self-repair a TV MYSTERY MTV-4018LW without the appropriate qualifications and experience can lead to its complete failure to repair!
SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> Main MSDV3209-ZC01-01 Schematic diagram
FIRMWARE FOR SPI FLASH -----------> MYSTERY MTV-4018LW V1L07, Main: MSDV3209-ZC01-01(D), Panel: T390HVN01.0
SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> TV3205-ZC02-01
The appearance of the MainBoard MSDV3209-ZC01-01 is shown in the figure below:
MainBoard MSDV3209-ZC01-01 uses a multifunctional microprocessor of the type MSD309PX or MSD308PX with an integrated scaler. Two RAM chips W9751G6IB are used as RAM. SPI Flash MX25L6406EMI-12G is made in the SOP-16 (16 pin) package.
It is advisable to start the repair of the motherboard by checking the voltage + 5V standby mode. In the operating mode, it is necessary to check the operability of linear stabilizers and power converters of the processor, memory, panel and other components of the board.MSDV3209-ZC01-01 can be used in TVs:
BBK LEM3281FDT (Panel V315B1-LE9 REV.C1), BBK LEM3285FDTG (Panel V315H4-LE7 REV.C1), BBK LEM1949DT (Panel HT185WX3-100), BBK LEM3248DT (Panel V315B1-LE7 REV.T160) -LE8), BBK LEM3249FDT (Panel V315H4-LE8), BBK LEM2449FDT (Panel M236MWF7), BBK LEM3282DT (Panel V315B1-LEA), MYSTERY MTV-4018LW (Panel T390HVN01.0), MYSTERY011-P90-M390301101201 , MYSTERY MTV-4214LW (Panel T420HW08 V.5 FHD), MYSTERY MTV-3214LW (Panel V315H4-LE2 Rev. C1), MYSTERY MTV-4217LW (Panel T420HW09 V.9 (FHD)), MYSTERY MTV-3220LW (Panel V315H4 -LE7).
The appearance of the power supply
Main features of the MYSTERY MTV-4018LW device:
Installed matrix (LED-panel) T390HVN01.0.
The LED driver TV3232-ZC02-01 (A) is used to power the backlight LEDs, it is controlled by the AP3608EM, AP3039AM PWM controller. As power elements of the LED driver, keys of the type B6010D are used.
The necessary supply voltages for all nodes of the MYSTERY MTV-4018LW TV are generated by the TV3205-ZC02-01 power supply module or its analogs using ICE3B0565J, LD7550BL (6pin) microcircuits.
MainBoard - the main board (motherboard) is an MSDV3209-ZC01-01 module, using CPU chips: MSD308PX, DDR: W9751G6IB, SPI: SPI Flash: MX25L6406EMI-12G, Sound: TPA3113D2 and others.
Tuner DT58WT-3RB-E provides the reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: AUO
Model: T390HVN01.0
Type: a-Si TFT-LCD, Panel
Diagonal size: 39 inch
Resolution: 1920x1080, FHD
Display Mode: AMVA, Normally Black, Transmissive
Active Area: 853.92x480.33 mm
Surface: Antiglare (Haze 2%), Hard coating (3H)
Brightness: 350 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: 8 pcs CCFL Embedded (Balance board)
Signal Interface: LVDS (2 ch, 10-bit), 51 pins
Voltage: 12.0V
MYSTERY MTV-4018LW TV with T390HVN01.0 LCD, 39 "(99 cm) diagonal size of 16: 9 format. The required screen brightness of 400 cd / m² is provided by LED backlighting. Contrast, as the ratio of maximum brightness to minimum, is 2000: 1. The LED-panel of this TV has end-face LED illumination - Edge LED.The design and technical capabilities of the TV include watching programs and movies in high quality HD at a resolution of 1920x1080 pixels in a graphical decomposition according to the standard 1080p (Full HD). frequency or video signal can be processed in analogue systems PAL, SECAM, NTSC. Graphic processing and digital signal generation occurs in standards 480i, 480p, 576i, 576p, 720p, 1080i, 1080p. Supported media file formats: MP3, WMA, MPEG4, DivX , MKV, JPEG.
The power of the sound speaker system 16 W (2x8 W) is provided by 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, component, SCART, RGB, 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.
A digital tuner is capable of receiving television channels in the DVB-T MPEG4, DVB-C standards.
The power consumed by the TV in the operating mode from the network is 90 watts.
Dimensions: With stand 642x444x209 mm, Without stand 570x345x70 mm.
Attention! The T390HVN01.0 panel of the MYSTERY MTV-4018LW 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.