TV Repair: Common Faults and Solutions.
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Results: 87577
Results: 87577
Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| LG | 42LE5600 | Tsound is no sound, no image, backlight on. | I solved it by changing the main pcb (mainboard) | Mário Martins | |
| TOSHIBA | TV2999 | TV turns on after a few minutes and turns off | Capacitor c448 | The power supply was checked and it was normal. The capacitors were checked vertically and horizontally. 33μF/160 volt capacitor was found, it was dry, replaced, the TV was normal | Adriano Miranda |
| SAMSUNG | UN32J4300AG | Turns on normally, with sound, but it keeps alternating colors red/green/blue/black/gray/white | Flat cable that goes from the tcon to the main board | Clean the flat with the eraser. Note: I tried to reset with a service remote and it wouldn't accept entering the factory reset... | MIGUELTV |
| CCE | HPS-2071 | The LED does not turn on, after pressing the power key, the LED flashes and returns to stand by | Capacitors of 4ufx160 and 33ufx160 dry but not swollen, after replacing the LED flashed quickly when turning on, | Following the tip sound on the forum, after checking protections, I removed jamper jc11 near the flyback and resolved, moving on to the next | Rodrigo V F |
| SONY | HCD-E300 | Indica "please wait" no cd | Clean the connectors of the red cable that takes data from the CD to the board. | Persio (TVCompany) | |
| PHILCO | PH21D | Doesn't start... only after insisting a lot | Cp 881 47uf 25v i cp4u7 50v next to the vertical output..both with high esr | José técnico | |
| LG | 42PG20R | Turns on and then turns off after a while, or turns on and then turns off | Bad power supply capacitor in my case it was c232 | I replaced the c232,c233,c234,c235 as a precaution | jp eletronica |
| PHILCO | 2051 | TV inoperative stand-by LED off and a beep on the traffic. | In my case, a high leak caused the horizontal to short out. and the vertical was damaged, which also charred the r 605 (33 r) | Patch or replace the fly-back and replace the vertical (tda8356) and the r 605. | Edfesom |
| BRASTEMP | ACTIVE BMT45BRHNA | The oven does not heat up even though all components are ok and tsound is AC voltage arriving at the high voltage transformer. | When opening the protection cover of the magnetron terminal wsound two wires enter: one comes from the transformer and the other from the high capacitor, one of the wires was loose, causing intermittence in the operation of the magnetron valve. | alexsts | |
| PHILIPS | FW452 | Only on standby | L554 on tray board | geronimo lima | |
| LG | 29FU1RL | The LED + b lights up normally but horizontally does not oscillate. no image | C826 1000uf/10v change without testing | Johnson | |
| CCE | HPS2991FS | Stand by LED is lit but does not flicker | He sucked, he sucked | Replace it and give glory to God!! | Abençoado |
| LG | 29FU1R | Power supply low and wouldn't turn on | Cap c405 short | Replace and go for a hug | Eletrônica pai e filho |
| LG | 29FE80 | Dark image weak filament | C831 220x160v | FELIX TVSUL | |
| LG | 42LB7DF | Sometimes it turns on but the image stays dark | Power transistor 07n60c3 location q706 check q707 too | Swapping for a 12n50 power mosfet, solved the problem | CELSOKAYRAN |
| TOSHIBA | TV2957(F)FS LEM-FS3 | Image in the center of the screen, only 18cm wide, after a few seconds horizontal output and cd 11 heat up too much. | The cause is the 10k smd resistor r07 open or with "cold" soldering | Solve or replace resistor r07 | Assolini Eletronica Áudio e Vídeo |
| SHARP | SG-165 | No audio at the speaker output, line output to tape with normal audio. | Voltage on pin 01 of IC 1 (audio output) with 0.5v (normal 1.7v), the cause was the 2.2u/25v electrolytic capacitor c-93 with high leakage =~100Ω. | Replaced the c-93 the sound returned | Assolini |
| SONY | MHC DX 9 | It turns on normally but the relay does not arm and tsound is no sound | D801 shorted. relay responsible for filtering relay voltage | Johicon Silva | |
| PHILCO | PH21M-SS VER.B | R-816 from 150r toast when changing it smoked | Q-802 shorted | Changing the r-816 r-818 and q-802 worked perfect | ELETRÔNICA CAVALCANTE MARTINÓPOLE-CE |
| PHILCO | PH21B | Vertical closed and shutting down | Shorted varicap | I released the 5v. the TV worked | Robenilsom |