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 |
|---|---|---|---|---|---|
| SEMP | LC4245W | The TV would sometimes turn on when it was cold...but if I unplugged it and turned it on again, it wouldn't even turn on stand by. | Changing the n950 photo coupler | GR Eletrônica | |
| TOSHIBA | TV2157 NFS U18 | Low and noisy sound is not in the audio sector | Q906 smd on kinescope board | When you remove it, the audio appears, but in case of doubt, put another one | Carlosss |
| AOC | LE32D3330 | Doesn't start | Capacitor | C9111 330/16v with low importance | Tec Center |
| PHILCO | PH39F33 | Standby only | Cold soldering | In the primary power supply circuit | Tec Center |
| SEMP | TV2934BSL SK91 | Doesn't start | Checking the voltage, as the 5v voltage was low, removing the micronas it came back, solution to change the micronas | DJ PITUKA | |
| SAMSUNG | MX-F630ZD | Device showing protective message | The aic2 audio output integrated (tas5342a) was removed and the message did not appear, when installing a new integrated the message was displayed again. | All the gaps between the CI pins were scraped as tsound was a lot of carbonization on the plate due to the heating of the part. This scraping was done with the tip of tweezers and assisted by an electron microscope for good visualization. Once that was done, I put the ci back in and the device started working normally again. | José Luiz Enguer Pereira |
| ELSYS | OITV | Receiver without audio | He came back | Alison import | |
| SAMSUNG | MX-F630ZD | Device showing protective message | The integrated audio output was removed and the message did not appear, when installing a new integrated the message was displayed again. | All the gaps between the CI pins were scraped as tsound was a lot of carbonization on the plate due to the heating of the part. This scraping was done with the tip of tweezers and assisted by an electron microscope for good visualization. Once that was done, I put the ci back in and the device started working normally again. | José Luiz Enguer Pereira |
| PHILIPS | 42PFL3604/78R | Device completely inoperative. | The power supply fuse f801 (5a) was open. the cause was a short in capacitor c807 (330p x 1kv). | Once the fuse and capacitor were replaced, the device started working normally again. | José Luiz Enguer Pereira |
| PHILIPS | 42PF7321/78R | When turning on the TV, it does not start by turning the power supply relay on and off. | The diodes were found to be shorted, d8020 (uf4007), d8006, d8007, d8018 (all em518) for a voltage of 2kv, and the fuse in the line of these diodes was also open. | After changing all the diodes and the fuse, the device started working normally again. | José Luiz Enguer Pereira |
| SEMP TOSHIBA | DL3975I(A) | Device inoperative, when trying to turn on the stand by LED turns green but the TV does not turn on and it turns green again. | The following components were found to be shorted, qp4 (aod 256) and dp15 (ss5cc) responsible for powering the LED bars. | Once the two components were replaced, the device started working again. | José Luiz Enguer Pereira |
| ORBISAT S2200 PLUS 3 | S2200 PLUS 3 | League without video | Replace transistor q100 replace with bd136 | DJ PITUKA | |
| PHILCO | PH 14 ULTRA SLIM N35 | Low 50v power supplys do not come out of stand by or via the remote control | Faulty function keys | Remove connector and short the key connector on the board (replace all keys) | KV ELETRÔNICA(MACEIÓ) |
| SEMP | TV2159NFS U18 | Does not turn on, standby LED does not even light up | Replace ceramic head c861,471 | DJ PITUKA | |
| PHILIPS | 40PFG5000 | Dark screen, back light on, normal voltages. | See cg4, in my case it charred the cg4 terminals, tsoundby opening the track that feeds the ci uc1. | arock | |
| CCE | STYLE D3201 | TV turns on... power led turns green and controls functions but tsound is no image dark screen (no black light) | Without the pb-on voltage leaving the main pci to pci power supply(5vdc) normal 5vdc-12vdc-24vdc power supplys. | Reballing of mcu (¨6 cases)...flash memory (1 case) | Cathoyo |
| PHILCO | PH21 US A1 | Image shaking, retrace lines appearing and the screen is low and does not adjust | Flyback with problem | Substituir flyback | Eletrônica Six2 |
| ELSYS | DUOMAX-ETRS49 ELSYS FENIX REV 00 | 13/18v tuner voltage low with 1.6v | Replace q101 and q100 were open | EDSON SOARES | |
| ELSYS | DUOMAX-ETRS49 ELSYS FENIX REV 00 | Does not connect power supplys to normal diodes | 3.3v regulator giving 1.2v | Replace u102 3.3v regulator and c 113 10v 1000nf | EDSON SOARES |
| SONY | KDL-40BX425 AZ2F | Does not turn on, the green LED lights up and then the stand by LED flashes twice | D910 (1n5408 with leak) | Replace | SANTOMEL |