TV Repair: Common Faults and Solutions.
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Results: 87571
Results: 87571
Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| PANASONIC | TC-21FX32L | Turns on and off by itself / goes into protection | D511 zener 10.8v saturated | Replace with 12v 0.5w zener problem solved | Severino Silva |
| CCE | HPS2185 | It doesn't work and the LED keeps flashing | Flyblack shorted | Replace the flyblack | Vamir |
| PHILIPS | 21PT9467 | Turning off after turning on | Defective computer | Sorry, the way to place the diode in the previous post is wrong, correcting it, placing the diode in4007 anode pin 36 cathode to ground, it will keep pin 36 at 0.7 volts and it will no longer turn off | HP ELETRONICA |
| PHILIPS | 21PT9467 | Turning off after turning on | Defective computer | Place diode 1n4007 cathode pin 36 anode on ground, it will keep pin 36 at 0.7 volts and it will no longer turn off | HP ELETRONICA |
| PHILCO | PH21C | Turns on normally, with a slightly stretched width, and turns off after a few minutes and giving 130v at the power supply while normal and 102v | Changed resistor r839 from 82k giving 102k, just changing it returned to normal. | Replaced resistor r839 from 82k giving 102k, just changing it returned to normal. | DJ PITUKA |
| PHILCO | PH21MSS | Turns on, tsound is no signal but tsound is no image even on the AV | After banging my head a lot I found the Q301 and Q401 defective | The replace of q301 and q401 and running into the hug | Eletronica Carlos Viseu-PA |
| PANASONIC | TC-L42U30B | It doesn't turn on, it just keeps the stamdby LED flashing green several times | Smd capacitor under the tcon board in short you can take it out tsound are two, a bigger one it kills the 12v voltage you can test the 5ah smd fuse it is on the tcom board next to the flat sludge | eEletronica Arni-sc | |
| LG | 32LH70YD | Works normally but no audio | Bad contact on the lge3556c processor | Reballinga not processor | Heberson |
| SAMSUNG | UN32D5800 | Stand by LED blinks until it stops and does not turn on the TV. | Smd transistor ic205 in the main, heating up a lot, due to the shorted capacitor c1020. | Replace of c1020. | Online Eletrônica |
| AIWA | NSX-F969 | It turns on the panel and turns it off, and sometimes it doesn't even light the panel. | Check q224 fet 2sk 2937 which may be faulty. | I replaced it and it stopped turning off and it worked normally, good luck to everyone, | Eronaldo (erontec) |
| AIWA | NSX-F969 | It turns on but the tuning doesn't stop, just press the tuning to stop. | Adjust coil l771 | When adjusting, the tuning was normal, good luck, (erontec). | Eronaldo (erontec) |
| PHILCO | PH14 D | The tsh does not oscillate, when connecting b+ 105v and it drops to 16v, q401 oscillates but q402 does not trigger. | Missing +12v for the t402, track oxidized by cockroaches | Retrace the trail. | GDP2 |
| SONY | KDL-40EX405 | Does not turn on, turns green, turns to red and flashes 5 times | Tcon fuse open | HP ELETRONICA | |
| SEMP | TV2134 | TV works normally, but no sound | C628 | Replace it with another and run to another | Antonio Carlos (Eletrônica Renascer) |
| PHILCO | TV PH21M SS | The TV works normally but after a few minutes the image turns white with the screen full of retrace lines | Q802 | Replace or q802 | Sinailson furtado |
| PHILIPS | 42PFL3508G | Doesn't start | Capacitor c9169 | Tec Center | |
| SAMSUNG | UN40F6400 | Sometimes it turns on and works, sometimes it doesn't turn on, the LED flashes 2 times quickly and the power supply relay keeps hitting, but it doesn't light up the screen or work, it stays in this cycle indefinitely. | I tested the power supply, I tested the LEDs, I tested the main board and I tested the tcon, I forgot about the joystick/bluetooth/wifi module. | The defect was in the bluetooth module, just changing it solved it... | MIGUELTV |
| CCE | LN244 MP113Q MP113Q | Does not turn on, low power supplys, with 0 volts | Z1 of vcc changed, stabilizing the ld7731 power supply at less than 10v. | After wasting a lot of time looking for bad components. I saw that the voltage was low. I put an 18 v zener (original y9 w 24v zener) and the power supply oscillated and turned on tvled. | Giovani pires bitencourt |
| LG | 32LY340C | Does not turn on, LED is on and flashing | Tas5733 defective | Replace the same | SERGIO BRAGA |
| H-BUSTER | HBTV-32D01HD | Does not turn on the back light, when turned on the lamps blink weakly and go out. | C-306a 220nf/305v and c-306b 220nf/305v with low capacitance. | py1acb |