Technical description and composition of the THOMSON 32MT02E64 TV, panel type and modules used. The composition of the modules.THOMSON
Model: 32MT02E64
Panel: V320B1-L04 Rev. C1
Power Supply (PSU): 40-00N37A-1XXG B
MainBoard: 40-MT02MF-MAA4XG
IC MainBoard: MT8202AG, HY5DU28822FTP
Tuner: 40-32V6GM-TUF2XG / F07WP-3BE-E // TEDE9-2C2
Appearance
THOMSON 32MT02E64
General recommendations for TV LCD repair
Possible malfunctions
- TV THOMSON 32MT02E64 does not turn on at all. No response to the remote control and front panel control buttons. Indicator lamps do not light up or flash.
A fault in such cases should be started to look in the circuits of the power supply 40-00N37A-1XXG. It is necessary to measure the output voltages in its secondary circuits, and if they are completely absent, the serviceability of the power switches and rectifier diodes should be checked for a possible breakdown (short circuit).
In the event of diode breakdowns in the secondary circuits, the converter can operate in an emergency mode of short circuit without output voltages, and in the event of a short circuit in the power elements of the primary circuit, the mains fuse and / or the current sensor in the source of the key usually breaks off.
The breakdown of power switches (MosFet) in switching sources is sometimes caused by malfunctions of other circuit elements, for example, in the circuits supplying the PWM controller, frequency setting or damper, as well as in the circuits of Negative Feedback (OOS) stabilization. PWM controllers (PWM), if they do not have visible damage to the case and an outright short circuit between the terminals, are usually checked by replacing.
- There is no picture, but there is sound and reaction to the remote control. Or, for a second, the image may appear immediately after switching on.
These manifestations can be provoked by the power module, or by defects in the inverter, as well as by the skew of currents in the lamps due to their uneven wear. If all the electrolytic capacitors of the filter for the power supply of the inverter are in good working order, you should make sure that the lamps are in good condition, then you need to check the keys of the converter and the secondary windings of the transformers.
If, when diagnosing a malfunction, it is required to turn off 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 they are completed, it is imperative to restore the protection circuits for the further safe operation of the TV by the owner in normal mode.
- The indicator blinks or is on constantly, the TV does not turn on, does not respond to the remote control.
Repair or diagnostics of the 40-MT02MF-MAA4XG motherboard should begin with checking the stabilizers and power converters required to power the microcircuits and matrix. If necessary, you should update or replace the software (software). Often the MB (SSB) board must be replaced in case of complex malfunctions that are difficult to detect. When trying to repair, you should check its elements - MT8202AG and replace the failed chips with new ones. Some malfunctions can be associated with the use of BGA soldering technologies in modern Main Board. Usually such defects are detected by local heating of the chip.
Before replacing the F07WP-3BE-E tuner, if there is no tuning to the channels, you must first check the software and the supply voltage at its terminals. You also need to make sure that the tuner and processor can exchange data via the I2C bus
Users and owners of TVs need to remember that attempts to self-repair a THOMSON 32MT02E64 TV without the appropriate qualifications and the necessary experience can lead to serious negative consequences!
The appearance of the MainBoard 40-MT02MF-MAA4XG is shown in the figure below:40-MT02MF-MAA4XG
40-MT02MF-MAA4XG can be used in TVs:
THOMSON 27MT02E64 (Panel V270B1-L03 REV.C1 ), THOMSON 32MT02E64 (Panel V320B1-L04 Rev.C1).
External view of the power supply
The main features of the THOMSON 32MT02E64 device:
Installed matrix (LCD panel) V320B1-L04 Rev. C1.
The formation of the necessary supply voltages for all nodes of the THOMSON 32MT02E64 TV is carried out by the 40-00N37A-1XXG power module, or its analogs.
MainBoard - the main board (motherboard) is a 40-MT02MF-MAA4XG module, using MT8202AG, HY5DU28822FTP and others.
Tuner 40-32V6GM-TUF2XG / F07WP-3BE-E // TEDE9-2C2 provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: CMO
Model: V320B1-L04
Type: a-Si TFT-LCD, Panel
Diagonal size: 32.0 inch
Resolution: 1366x768, WXGA
Display Mode: Super MVA, Normally Black, Transmissive
Active Area: 708.954x398.592 mm
Surface: Antiglare (Haze 25%), Hard coating (3H)
Brightness: 500 cd / m²
Contrast Ratio: 1200: 1
Display Colors: 16.7M (8-bit), CIE1931 75%
Response Time: 6.5 (G to G)
Frequency: 60Hz
Lamp Type: 16 pcs CCFL Embedded (Inverter)
Signal Interface: LVDS (1 ch, 8-bit), 30 pins
Voltage: 5.0V