TV Repair: Common Faults and Solutions.
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Results: 87436
Results: 87436
Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| STI | LE4050(B)FDA | didn't care | Standby only, without 12v and 24v | replacing the QW901 transistor | ROGERIO |
| PHILCO | PH49F30DSGWA | Backlight does not turn off, even with the TV on standby | LED driver IC OB3352CP leaving pin 7 with permanent 8 volts. | Dili - RS | |
| PHILCO | PH49F30 | Backlight does not turn off, even with the TV on standby | LED driver IC OB3352CP leaving pin 7 with permanent 8 volts. | ||
| SAMSUNG | UN32K4100AG | LED on does not work. | Transistor Q203 on the inverter control line is leaking. | ELETROFEPAR | |
| TCL | L55L4900FS | Reduce LED current | Not set R623, R624, R625, R626, R627, R628. | Remove 2 150Ω resistors and 560Ω resistor. | Mau3000 |
| CCE | MD3130 | Not working? | Doesn't work | ||
| PHILIPS | 42PFL3604 | Pisca back | My contact lamps display | let's solve | Angelo MG |
| TCL | L43S4900FS NT563 | Lower the voltage on the LEDs to increase the useful life of the LEDs. | Remove 2 270k smd resistors that are in parallel RB812 and RB813 and place a 150k resistor in their place. | After the replace, the maximum voltage per LED bank must remain at 72v, which is ideal for this model. | rafaelmoraes99 |
| PHILIPS | 42PFL3008 | It just stays on standby and blinks in the backlight | Eeprom, remove eeprom, turn on the TV without the memory, turn it off, discharge the power supply capacitors, highlight the eepron and that's it... solved | Luiz bhtechcenter | |
| SONY | KDL-47W805A | Turning off by itself after a few minutes and without signals, inoperative. Missing 12v and 3.3 POWER ON voltages. Primary voltage reaching the IC MIP2H2 but without output voltage or strange voltages oscillating in some cases | Replace IC MIP2H2 or try to heat the IC for 1 minute+- to try to dilate the internal structure and restore voltages (do this while switched on until the red LED on the main board lights up indicating that 12v has returned) | WesleyMSZ | |
| SONY | KD-55X705F | Turns on the back light and turns off blinking 5 times | Placa tcon | I was really unsure whether it would be tcon or display! I looked on several forums and found nothing! Finally, I disconnected the lvds cavo and left the screen flet cables connected and inserted an external 12 volt power supply, so that the faulty component would heat up, and that was it! The ci ICD1 on the tcon board was on fire! I already did this on another Sony and the capacitors on the vcon board got hot too! I just replaced the tcon and ran to the hug | Rafael Sena |
| LG | 21FX5RL_KWZLLCZ 611AZDB03186 | WHEN TURNED ON THE LED COMES ON, NOTHING ELSE | NOTHING WORKS, ONLY THE LED LIGHTS ON | NOT YET | LUIZ CARLOS |
| SEMP | L32D2900 | Turns on, but turns off in about 30 seconds | Software Corronpido | Update the Software, which can be sold on the open market | Romildo Behrend |
| SEMP | L32D2900 | Turns on, but turns off in about 30 seconds | Software Corronpido | Update the Software, which can be sold on the open market | Romildo Behrend |
| PHILIPS | 40PFL5606 | Does not turn on, does not come out of standby | Memory stuck | Short out pins 5 and 6 of the 7702 memory to gnd on the main board and connect the TV to the socket, wait a few seconds, the TV will turn on, undo the short and the TV has its memory unlocked | Mitzko eletrônica |
| PANASONIC | TC-32D20 | Backlight flashes and goes off, standby light flashes red 4x | Burnt out LED bars. You can deactivate the burnouts if you have a good bus and it still works normally. | Replacing complete new buses in 2024 (200 reais per piece). It doesn't last more than 5 months even with minimum backlight and little use. I don't recommend... | |
| PHILIPS | 32PFL4707G/78 | doesn't start | u701 regulator. 3.3 volts | Replace 3.3 volt regulator U701 on the main board | Flavio |
| PHILCO | PH40D10 | The LEDs don't light up | shorted dp401 diode | replace diode | Eletronicaaeb |
| SEMP TCL | 32R5500 | Reduction of LED current | High voltage in LEDs | Remove resistor RV113, 2r2 | Beto |
| SAMSUNG | UN32T4300AG | TV with backlight sound but no picture | short display cut off ckv sync line. | X elétro |