Technical description and composition of the THOMSON 40D3200F TV, panel type and modules used. The composition of the modules.THOMSON LED
Model: 40D3200F
Chassis / Version: MS82S
Panel: LTA400HM21
LED backlight: SLED 2011SGS40 5630 60 H1 REV1.0_Core
T-CON: 400HR42S4LV0A
LED driver (backlight): SSL400-0E2D REV0.0
PWM LED driver: SSL100SN
MOSFET LED driver: MDD3752, MDD86102
Power Supply (PSU): 40-E421C5-PWB1XG
PWM Power: FAN7930C, VIPER17L, FSFR1700XS
MOSFET Power: K12A50D
MainBoard: 40-MS82S0-MAD2XG (H)
IC MainBoard: MST6E182VS-LF, 25Q32A-100HIP, 24C64, K4T51163QT-BCF7, IT6633E-P, TPA3110D2
Tuner: F35WT-3-E
Control: IR: 40-10BD32-IRA2XG
Appearance
THOMSON 40D3200F
General recommendations for TV LCD LED repair
Possible malfunctions
- THOMSON 40D3200F 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.
Often in such cases, the power module 40-E421C5-PWB1XG is faulty. 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 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.
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) FAN7930C, VIPER17L, FSFR1700XS, 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 image, there is sound, it reacts to the remote control. Or the image may appear for a second when turned on and disappear immediately.
In some of these cases, the malfunction is caused by the lack of display backlighting. The reason can sometimes be in the power supply of the LEDs, but more often in their malfunction (breakdown or breakage), sometimes in the violation of the contact connections of the LED strips.
To test the LED strips, in order to open all the transitions of the LEDs, several tens of volts or more are needed; it is best to use a current source for such purposes. The breakage of several PN junctions connected in series cannot be detected with a multimeter or tester. In such cases, it is necessary to open the panel and check each LED. If your multimeter cannot open the LED junctions in forward bias, you can sometimes detect the presence of a protective zener diode PN junction by connecting the probes in the opposite direction. If the zener diode is cut off or broken in K / Z, then the LED is faulty and needs to be replaced.
- 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-MS82S0-MAD2XG 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). If it is not possible to replace the MB (SSB) board, it is necessary to check the serviceability of its elements - MST6E182VS-LF, 25Q32A-100HIP, 24C64, K4T51163QT-BCF7, IT6633E-P, TPA3110D2. Defective components must be replaced.
Before replacing the F35WT-3-E tuner, if there is no tuning to the channels, you must first check the software and the supply voltage at its terminals. It is also necessary to make sure that the tuner and processor can exchange data via the I2C bus
Once again, we remind TV users: you should not try to repair yourself without the appropriate knowledge, experience and the necessary qualifications! Trust the repairs to professionals with sufficient experience in the field of electronic repair.
DOWNLOAD SCHEMATIC DIAGRAM / SERVICE MANUAL ------------------> 40-E421C5-PWB1XG Power supply
The appearance of the MainBoard 40-MS82S0-MAD2XG is shown in the figure below:40-MS82S0-MAD2XG
40-MS82S0-MAD2XG can be used in TVs:
ERISSON 23LET70 (Panel LTA230AP01), GOLDSTAR 32A340R (Panel LVW320SSTM E1), GoldStar LT-42A320F (Panel LVF420AUBK), MYSTERY MTV-3225LW (Panel LVM320CSTME13V4), MYSTERY MTV-4019LW LVW320CSTME18 V2), TCL 40D3200 (Panel LTA400HM13), TCL 39D3320 39D3320F (Panel LVF390CMTM E13 V2), TCL 39E5000F3D (Panel V390HK1-LS5), THOMSON T39ED33HU (Panel LVFV390CMTME32) LVW320SSTT E1).
External view of the power supply
The main features of the THOMSON 40D3200F device:
The matrix (LED-panel) LTA400HM21 is installed.
Matrix control uses Timing Controller (T-CON) 400HR42S4LV0A.
The LED driver SSL400-0E2D is used to power the backlight LEDs, controlled by the PWM controller SSL100SN. Key types MDD3752, MDD86102 are used as power elements of the LED driver.
The formation of the necessary supply voltages for all nodes of the THOMSON 40D3200F TV is carried out by the 40-E421C5-PWB1XG power module, or its analogs using FAN7930C, VIPER17L, FSFR1700XS microcircuits and K12A50D power switches.
MainBoard - the main board (motherboard) is a 40-MS82S0-MAD2XG module, using MST6E182VS-LF, 25Q32A-100HIP, 24C64, K4T51163QT-BCF7, IT6633E-P, TPA3110D2 and others.
The F35WT-3-E tuner provides reception of television programs and tuning to channels.
Additional technical information about the panel:
Brand: SAMSUNG
Model: LTA400HM21-W
Type: a-Si TFT-LCD, Panel
Diagonal size: 40 inch
Resolution: 1920x1080, FHD
Display Mode: SPVA, Normally Black, Transmissive
Active Area: 885.6x498.15 mm
Surface: Antiglare
Brightness: 320 cd / m²
Contrast Ratio: 4000: 1
Display Colors: 16.7M (8-bit), CIE1931 70%
Response Time: 8 (G to G)
Frequency: 60Hz
Lamp Type: WLED Embedded (LED Driver)
Signal Interface: LVDS (2 ch, 8-bit), 51 pins
Voltage: 12.0V