Technical description and composition of the MYSTERY MTV-2611LW TV, type of panel and applicable modules. The composition of the modules.MYSTERY LED
Model: MTV-2611LW
Chassis / Version: MSTV3208-ZC01-01
Panel: V260H1-LE6 Rev. C1 // V260H1-LE7
LED backlight: 3032600120A LED26R-ZC14-06 (A), 30326001209 LED26L-ZC14-06 (A)
T-CON: V260H1-P03 (V260H1-XC03)
LED driver (backlight): TV2631-ZC02-01 (B)
PWM LED driver: BIT3251
Power Supply (PSU): TV2632-ZC02-02 (A) 303C2632062
PWM Power: OB2263 (PWM SOT23-6)
MainBoard: MSTV3208-ZC01-01
IC MainBoard: Cpu: MST6M48RHS-LF-Z1, Spi Flash: EN25Q32A
Tuner: F21WT-3BAR-E
Control: IR: TV2631-ZC25-01 (B) 303C2631232
Technical Specifications MTV-2611LW
MYSTERY MTV-2611LW
General repair guidelines for TV LCD LED
Repair of electronic devices, including the MYSTERY MTV-2611LW TV, it is advisable to start with an external examination of its external and internal elements. 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 MYSTERY MTV-2611LW 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. In some cases, only the processor power regulator may be faulty. Diagnostics and repair of the common power supply should always begin with a check of the mains fuse and the condition of the electrolytic capacitors of the secondary rectifier filters. Defective and swollen capacitors should be replaced with new ones. If the fuse breaks, it is advisable to check for a breakdown, first of all, all the power semiconductor elements of the converter and the diode bridge of the rectifier network, as well as the large electrolytic capacitor of the filter of the rectifier network.
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 PWM controller chip can also cause a breakdown of the power switch of the converter.
If the MYSTERY MTV-2611LW does not have an image, but there is sound and the TV is controlled by the remote control, a malfunction in the backlight circuits of the V260H1-LE6 Rev.C1 CMO panel is likely. The LEDs or the power converter - LED driver may be faulty. Often in such cases, when you turn on the TV, an image appears and immediately disappears. First of all, it is necessary to verify the operability of the electrolytic capacitors of the rectifier filter supplying the LED driver, and check the LEDs, connecting obviously known good diagnostics.
A malfunction in the backlight circuits often occurs due to an open in the power circuit of the LED lines. It requires disassembling the panel and checking the LEDs themselves, the rations of their terminals, as well as the reliability of the connections in the connectors and rations of the terminals.
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.
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, you should check its elements - Cpu: MST6M48RHS-LF-Z1, Spi Flash: EN25Q32A and replace failed chips 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.
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 F21WT-3BAR-E, which is usually within 30-33V, as well as other supply voltages at the terminals of the tuner.
Attention! Users and owners of MTV-2611LW televisions who do not have the appropriate qualifications, knowledge and experience are strongly discouraged from attempting self-repair in order to avoid negative consequences that could lead to complete non-serviceability of the device.
FIRMWARE FOR SPI FLASH -----------> MYSTERY MTV-2611LW, Main: MSTV3208-ZC01-01, Panel: V260H1-LE6 Rev.C1 CMO
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-2611LW device:
Installed matrix (LED-panel) V260H1-LE6 Rev. C1 or V260H1-LE7.
The matrix control uses the Timing Controller (T-CON) V260H1-P03.
The LED driver TV2631-ZC02-01 (B) is used to power the backlight LEDs, it is controlled by the BIT3251 PWM controller.
The necessary supply voltages for all nodes of the MYSTERY MTV-2611LW TV are generated by the TV2632-ZC02-02 power supply module or its analogs using OB2263 microcircuits (PWM SOT23-6).
MainBoard - the main board (motherboard) is an MSTV3208-ZC01-01 module, using Cpu chips: MST6M48RHS-LF-Z1, Spi Flash: EN25Q32A and others.
The F21WT-3BAR-E tuner provides television reception and channel tuning.
MYSTERY MTV-2611LW TV with V260H1-LE6 LCD, 26 "(66 cm) diagonal size 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. The LED-panel of this TV has end-face LED illumination - Edge LED.The TV design and technical features include viewing programs and movies in high quality HD at a resolution of 1920x1080 pixels in graphic resolution 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, MPEG4, JPEG.
The power of the acoustic system of sound 6 W (2x3 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, component, 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.
Dimensions: With stand 642x444x209 mm, Without stand 570x345x70 mm.
Attention! The V260H1-LE6 Rev. C1 panel of the MYSTERY MTV-2611LW 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.