Technical description and composition of the THOMSON T32E97DU TV, panel type and modules used. The composition of the modules.THOMSON
Model: T32E97DU
Chassis / Version: MSD209
Panel: KONKA KPL + 315A1C3E5
T-CON: V315B6-P01 Rev. C5 V315B5-XCN1
Inverter (backlight): KIP + L110E02C2-01
PWM Inverter: OZ9906GH
Power Supply (PSU): KIP + L110E02C2-01
PWM Power: AZ324M-E1
MainBoard: MSD209 35015263 sticker: KDL32JS97A-K-E5K
IC MainBoard: FL128P1F (P25FL128), H5PS1G63EFR, 24C04, ATMLH018 2FB (24C512), MSB1210-LF, PS331, MP2307DN, MP1482DS
Tuner: TDTC-G311D
Specifications T32E97DU
THOMSON T32E97DU
General recommendations for TV LCD repair
Possible manifestations of defects
- THOMSON T32E97DU does not turn on and does not show any signs of operability at all. Does not blink indicators and does not respond to control buttons.
In such cases, you should start looking for a malfunction in the KIP + L110E02C2-01 power supply circuits. Its output voltages should be measured, and if they are absent, check the serviceability of the power switches of the converters and rectifier diodes for the probability of a short circuit.
In case of breakdowns of semiconductors in the secondary circuits, the converter can usually work in an emergency in the short-circuit mode, and with a short circuit in the power elements of the primary circuit, the mains fuse often breaks.
Breakdown of Mos-Fet switches used in switching power supplies is often caused by malfunctions of other elements, for example, in the power supply circuit of the PWM controller, in frequency setting or damper circuits, as well as in negative feedback stabilization. PWM microcircuits (PWM) AZ324M-E1 are usually checked by replacing them with new ones, or known to be working properly.
- 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. After checking all the electrolytic capacitors of the filters that are involved in the power supply of the inverter, ring the power switches in its converter for breakdown and the secondary windings of the transformers for an open circuit.
Sometimes, for diagnostic purposes, it is necessary to disable the inverter protection. In such cases, special care must be taken during work, and the protective circuits must be restored immediately after the repair is completed.
- 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 MSD209 * 35015263 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). When repairing an MB board, you need to check its components FL128P1F (P25FL128), H5PS1G63EFR, 24С04, ATMLH018 2FB (24C512), MSB1210-LF, PS331, MP2307DN, MP1482DS. Defective elements must be replaced. If chips with BGA soldering technology are used, the problem in its implementation is detected by local heating of the chip.
If the TV operates normally from external devices, but does not tune into TV channels, the TDTC-G311D tuner may be faulty. In such cases, first of all, you should make sure that there are supply voltages at its corresponding terminals. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus. Sometimes the reason for the inoperability of the tuner may be a software failure.
If THOMSON T32E97DU has no image, but there is sound, often the display backlight KONKA KPL + 315A1C3E5 simply does not work. Moreover, in LED TVs, the LEDs inside the panel usually fail, less often the LED driver.
In such cases, you can see a barely noticeable image with a successful hit of external light on the screen.
Replacing the LEDs requires disassembling the KONKA LCD panel - a process that requires experience and qualifications from the master. We do not recommend doing such work on your own to the owners of TVs and craftsmen who do not have experience in repairing LCD panels
If there is no image, and the backlight is on, the screen becomes slightly lighter when turned on, and in an open TV you can see light through the holes in the panel case.
In this case, the panel may also be faulty - damage to strips, loops, for example, as a result of moisture ingress after unsuccessful washing of the screen, the T-CON (Timing Controller) board may be faulty. But the main board MainBoard MSD209 often turns out to be faulty, a software failure is also possible.
Then, first of all, you need to check the panel supply voltage, the fuses on the T-CON board, as well as the supply and reference voltages of the column and line drivers - VGH, VGL, Vcom.
If these measurements are within normal limits, it is necessary to trace the passage of LVDS signals from the MainBoard MSD209 with an oscilloscope, as well as synchronizing signals to the loops with drivers.
Flooded or unsuccessfully washed screens of LED TVs can be restored, in about half of the cases, usually if significant damage has not formed in the loops and panel strips.
Owners and users of the THOMSON T32E97DU TV should 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!
Additional MainBoard RepairThe appearance of the MainBoard MSD209 is shown in the figure below:
MSD209
The main features of the THOMSON T32E97DU device:
Installed matrix (LCD panel) KONKA KPL + 315A1C3E5.
Matrix control uses Timing Controller (T-CON) V315B6-P01.
To power the backlight lamps, the KIP + L110E02C2-01 inverter is used, controlled by the OZ9906GH PWM controller.
The formation of the necessary supply voltages for all nodes of the THOMSON T32E97DU TV is carried out by the KIP + L110E02C2-01 power module, or its analogs using AZ324M-E1 microcircuits.
MainBoard - the main board (motherboard) is an MSD209 module using chips FL128P1F (P25FL128), H5PS1G63EFR, 24С04, ATMLH018 2FB (24C512), MSB1210-LF, PS331, MP2307DN, MP1482DS and others.
Tuner TDTC-G311D provides reception of television programs and tuning to channels.
LED TV THOMSON T32E97DU with LCD KONKA, diagonal size 32 "(81 cm) 16: 9 format. The declared brightness of the screen of 400 cd / m2 is provided by modern LED backlighting. Dynamic contrast ratio of 3000: 1 is achieved by monitoring the operation of LEDs in the backlight depending on the brightness of the scene.This TV's LCD panel technology uses LED backlighting.It can be viewed in HD quality at a resolution of 1366x768 pixels in 720p standard (HD Ready) .Input high-frequency or video signal is decoded in analog systems PAL, SECAM, NTSC Formation of digital signal (graphic format) is performed in the standards 480i, 480p, 576i, 576p, 720p, 1080i Multimedia formats are supported: MPEG4, MKV.
Speaker power of 10 W (2x5 W) is provided by two speakers. The NICAM STEREO audio processing system is used.
External interface (communication with other devices) is supported by standard input and output connectors: antenna input (RF), AV, audio x3, component, VGA, HDMI x4, USB x2. A headphone jack is provided. A standard VGA (D-Sub 15) connector is used to connect a laptop or computer. This interface supports resolutions: 640x480, 800x600, 1024x768. The digital tuner has the ability to receive television channels in DVB-T standards.
Attention! The KONKA KPL + 315A1C3E5 panel of the THOMSON T32E97DU LED TV is an expensive and unreliable element.
Do not allow any impact on the glass and pressure on the screen surface to avoid damage to the LED panel!
It is also unsafe for liquid to spill onto the screen. Sometimes one drop is enough if it drips down the glass onto the cables to make the TV unrepairable.
