Technical description and composition of the THOMSON T32D16DH-01W TV, panel type and modules used. The composition of the modules.THOMSON LED
Model: T32D16DH-01W T32D16DH
Chassis / Version: TP.S512.PB83
Panel: LVW320CSDX E19 V28
LED driver (backlight): integrated into MainBoard
PWM LED driver: SN510P
MOSFET LED driver: AOD4454
Power Supply (PSU): integrated into MainBoard
PWM Power: PWM SOT23-6
MainBoard: TP.S512.PB83
IC MainBoard: CPU: S2T512, SPI Flash: GD25Q64B, RT9108NB
Tuner: XF-3SDT-H (R840)
Specifications T32D16DH-01W
THOMSON T32D16DH-01W
General recommendations for TV LCD LED repair
Possible malfunctions
- TV THOMSON T32D16DH-01W does not turn on and there are no signs of operation. The indicators on the front panel do not light, do not blink, the TV does not respond to the remote control and control buttons.
In this case, first of all, you should check the operability of the main power source - the mains voltage converter, all the elements of which are located on the MainBoard TP.S512.PB83. It is necessary to measure its output voltages and, if they are absent, the power switch and rectifier diodes of the converters should be checked for the probability of a short circuit.
In case of breakdowns of semiconductors in the secondary circuits, the converter, as a rule, can operate in an emergency mode in a short-circuit mode, and in case of a short circuit in the power elements of the primary circuit, the mains fuse usually breaks off.
Breakdown of power switches in pulse 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 regulators (PWM) PWM SOT23-6, if they do not have visible damage to the case and an open short circuit between the pins, 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.
As a rule, in such cases there is no display backlight. The reason may be both in the power supply of the LEDs, in their serviceability (breakdown or breakage), as well as in the violation of the contact connections of the LED strips.
It is impossible to check the LED bars for a break without disassembling the panel with a multimeter or tester. For these purposes, it is necessary to open all series-connected PN junctions and a voltage of the order of tens of volts is required, and ideally a current source. Having disassembled the panel, it is necessary to check each LED separately. Chinese multimeters tend to light one 3-volt LED in the forward direction. In the case of using dual 6-volt LEDs, the PN junction of its protective zener diode can serve as an indicator of serviceability. In faulty LEDs, the zener diode will either be cut off or broken through in the K / Z.
- The indicator on the front panel blinks, the TV does not turn on in operating mode, does not respond to the remote control.
Repair or diagnostics of the TP.S512.PB83 motherboard should begin with checking the stabilizers and power converters necessary to power the microcircuits and matrix. If necessary, you should update or replace the software (software). In some cases, to repair the MB (SSB) board, it may be necessary to replace the chips - CPU: S2T512, SPI Flash: GD25Q64B, RT9108NB with new or known good ones. In cases where BGA technologies are used, defects are usually localized by heating.
If THOMSON T32D16DH-01W has no image, but there is sound, often the LVW320CSDX E19V28 display backlight 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 LVW320CSDX 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 the 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 often the main board MainBoard TP.S512.PB83 also turns out to be faulty, a software failure is also possible.
Then, first of all, it is necessary to check the panel supply voltage, 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 the normal range, it is necessary to trace the passage of LVDS signals from MainBoard TP.S512.PB83 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.
The XF-3SDT-H (R840) tuner malfunction is established after checking the software and all supply voltages at its terminals. The data exchange of the tuner with the processor via the I2C bus can be monitored with an oscilloscope.
Once again, we remind TV users: do not try to repair yourself without the appropriate knowledge, experience and the necessary qualifications! Trust the repair to professionals with sufficient experience in the field of electronic repair.
DOWNLOAD FIRMWARE FOR SPI FLASH -----------> THOMSON T32D16DH-01W T32D16DH, Main: TP.S512.PB83, Panel: LVW320CSDX E19 V28
DOWNLOAD SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> MainBoard TP.S512.PB83
The appearance of the MainBoard TP.S512.PB83 is shown in the figure below:TP.S512.PB83
TP.S512.PB83 can be used in TVs:
AKAI LEA-39V51P (Panel LC390TA2A 902-P05-390H ), DEXP 40A7000 (Panel C400F13-E2-C), DEXP F39B7100E (Panel T390HVN04.0 CX390DLEDM), DEXP H32B7000C (Panel T320XVN02.9 C320X14-E2-A), DEXP F42B7000ED (Panel CX420DLEDM), DEXP F32C7000B (Panel BOEI320WU1), DEXP F32C7100B/W F32C7100 (Panel BOEI320WU1), DEXP 32A7000 (Panel BOEI320WU1), DEXP 42A7000 (Panel CX420DLEDM), DEXP F32B7000B (Panel BOEI320WU1), DEXP H39D7000E (Panel CX390DLEDM), DEXP F40B7000C (Panel C400F13-E2-C), DEXP H32B3200CD (Panel HV320WX2-201), HAIER LE28F6000T (Panel A275HD1A01-2 / LVW280CSDO E2 V2), HAIER LE32F6000T (Panel ST3151A05-8 LVW320CSDX E13 V2), MYSTERY MTV-4025LT2 (Panel CX400DLEDM), SHIVAKI STV-32LED13 (Panel SV320SHD PDL320TU2A X41), SHIVAKI STV-42LED16 (Panel V420HJ-P01), SHIVAKI STV-32LED14 (Panel CX315DLEDM AJ32TO3), SHIVAKI STV-40LED13W (Panel V400HJ6PE1-C2), SHIVAKI STV-32LED15 (Panel HV320WHB-N80), SUPRA STV-LC32T440WL (Panel C320X14-E13-H), SUPRA STV-LC32T900WL (Panel LC320TU3A), SUPRA STV-LC40T900FL (Panel 1080p Full HD 1920x1080), THOMSON T32D15DH-01B (Panel LVW320CSDX E13 V30), THOMSON T28D15DH-01B (Panel LVW280CSDE E3 V5), THOMSON T32D16DH-01W T32D16DH (Panel LVW320CSDX E19 V28), THOMSON T43D16SF-01B T43D16SF (Panel LVF430LGDO E2 V18).
The main features of the THOMSON T32D16DH-01W device:
Installed matrix (LED panel) LVW320CSDX E19 V28.
To power the backlight LEDs, a converter combined with the TP.S512.PB83 main board is used, controlled by the SN510P PWM controller. AOD4454 type keys are used as power elements of the LED driver.
The power module is combined with the MainBoard and is made according to the AC / DC flyback voltage converter using PWM SOT23-6 microcircuits.
MainBoard - the main board (motherboard) is a TP.S512.PB83 module, using CPU chips: S2T512, SPI Flash: GD25Q64B, RT9108NB and others.
Tuner XF-3SDT-H (R840) provides reception of television programs and tuning to channels.
LED TV THOMSON T32D16DH-01W with LCD LVW320CSDX, diagonal size 32 "(81 cm) 16: 9 format. The declared brightness of the screen of 220 cd / m2 is provided by modern LED backlight LED. less than 3000: 1 LCD panel uses direct backlighting with LED backlighting - Direct LED Can be viewed in HD quality at a resolution of 1366x768 pixels in 720p standard (HD Ready) Input HF or video signal is decoded in analog systems PAL, SECAM, NTSC Digital signal formation (graphic format) is performed in 480i, 480p, 576i, 576p, 720p, 1080i standards, multimedia formats are supported: MP3, MPEG4, JPEG.
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, component, SCART, VGA, HDMI x3, MHL, USB. 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, 1360x768. The digital tuner has the ability to receive television channels in the DVB-T MPEG4, DVB-C, DVB-T2 standards.
The power consumed by the TV from the network in the operating mode is not more than 50 W.
Dimensions: with stand 733x480x177 mm, without stand 733x444x93 mm.
TV weight: 4.3 kg.
Attention! The LVW320CSDX E19 V28 panel of the THOMSON T32D16DH-01W 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.