TV Repair: Common Faults and Solutions.
Search:
Results: 87573
Results: 87573
Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| LG | CM4440 | Turns on normally without sound, then activates protection | Ic931 12v regulator | Replace | Marcondes Ohm eletrônica Jaicós PI |
| LENOXX | MD-268 | No sound, low power supply voltage, output heating up. | Ic-5 sta540s Audio output shorted. | Fabrício Brackmann | |
| LENOXX | MD-268 | Doesn't start | Smt3028 | Replace ic-7 smt3028 | Fabrício Brackmann |
| LENOXX | MD-268 | No sound - with low signal at the output. | Ic-13 pt2314 audio switcher | Replace audio switch pt2314 | Fabrício Brackmann |
| PHILIPS | 21PT5433/78 | Normal image after 5 minutes the sound arrived. | C-2444 seco total | Replace it for another like it | ELETRÔNICA CAVALCANTE MARTINÓPOLE-CE |
| PHILIPS | 21PT5435/78 | Turns on and off in 3 seconds | Shorted thermal controller, bc547 | Replace components and adjustment of the screen and focus. normalized. | BICHARA |
| SONY | HCD-SHAKE5 | Dead | Pressing the power key turned the cooler for three seconds and turned it off and the display went out. | After checking all the voltages, everything was fine, I decided to check the display and found the first pin oxidized and broken, I redid the pin and resolved it, it's working perfectly. | sal.marinho |
| PHILIPS | 21PT5433/78 | It turned on normally but without an image with characters | R-3442 fully open. Sometimes you also need to change the c-2441 | Replace and that's it!!! | ELETRÔNICA CAVALCANTE MARTINÓPOLE-CE |
| PHILIPS | FX30X/78 | Does not turn on / inoperative | Touch switch on and off | Changing the on and off touch switch | JESUALDO / JM ELETRONICA |
| STANER | MP720 | Channel b with distorted sound | Missing the +15 volt voltage from the pre circuit tl071 | Replace 15 volt zener diode on pin 7 of the pre-amplification ci | ELVONEUTON FRAGA |
| SAMSUNG | LN40D550 | Image shakes, both from the middle up and the entire image shakes, this tip is worth it | Replace resistor r144 on the 47k screen board with one from 15k to 27k (use a 50k trimpot to determine the best value) | HP ELETRONICA | |
| SAMSUNG | LN40D503 | Image shakes, both from the middle up and the entire image shakes, this tip is worth it | Replace resistor r144 on the 47k screen board with one from 15k to 27k (use a 50k trimpot to determine the best value) | HP ELETRONICA | |
| PHILCO | PCA230 | Does not pull the CD and does not light up the display | D56 open | Replace for another or use a 1n4148 | brunopooubel |
| AOC | T2255WE | When you press the power button, the LED goes off and comes on again | Electrolytic capacitor on the power supply board (c911) orange color | ELETRONEUBERT | |
| MITSUBISHI | TC 2099 | Does not turn on, LED is off. voltage across the power supply capacitor | Str s6707 shorted | Replaced and the TV works. | Carlão |
| JVC | KD-469 | "protecting send service" | C.i. defective memory | Ic841 24c02 (rewrite or replace) | Bruno Poubel |
| LG | W1941ST | Monitor turning on and off normal voltages | Power supply opto coupler | Mariano | |
| PHILIPS | FWM779 | When connecting to power, the red LED lights up, the relay hits and then "everything dies", it does not accept any function, does not give power, does not light up the LED. | The defect is on pin 11 of the larger input transformer, which has poor invisible contact, due to the weight of the transformer, over time the solder cracks around the pin contour. | Poor contact pins of the larger 5900 transformer at the power supply. | MIGUELTV |
| LG | 14FK3RB | The LED turns on and off | 405 diode in short near the AV inputs 1n4148 | Just replace and run for the hug | Eletrônica Power |
| LG | 14FK3RB | The LED turns on and off | Diode 407 1n4148 shorted near flyback | Eletrônica Power |