42PFL3403/78 TV Repair: Common Faults and Solutions.
Search: 42PFL3403/78
Results: 14
Results: 14
42PFL3403/78 Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| PHILIPS | 42PFL3403/78 S MG8 1.1 | HDMI Inputs do not play video | 3p77 failure (390R 1%) | Replaces the resistor 3p77 (390R 1%) | leitemarcelus |
| PHILIPS | 42PFL3403/78 | Philips 42pfl3403/78 stand by led blinks twice but does not turn on. | The TV turns on the stand by LED, accepts the power on command and after this command, press the channel + button when you can hear (very softly) the re1 relay engaging. At this moment, tsound was only a voltage of 3.3 volts because this relay had a bad internal contact. I dismantled the relay (it can be dismantled) and saw that the terminals were very far apart and that's why it armed but did not conduct (and the docking sound was very low). All I had to do was clean and twist it to bring the contacts closer together and the TV started working again. normally. | littlecarlos | |
| PHILIPS | 42PFL3403/78 | No image, normal sound. Sometimes the image appears normal and then turns off, leaving only the audio. | When opening it, I found that the backlight was turning off, I heard a spark coming from the power supply board, I turned it over and saw that the transformer that generates the high voltage for the lamps had cold solder, I just increased the area of contact between the solder and the pins. of the transformer and resoldered it, it worked perfectly. | EC | |
| PHILIPS | 42PFL3403/78 | Normal standbay led when turning on the relay gun and turning off the led flashes slowly | Hdmi ci short (if you remove it it turns on normally) | I removed the ci and the TV turns on, I'm waiting for it to arrive to replace it | Portal tec letronica cat |
| PHILIPS | 42PFL3403/78 | The stand by LED lights up and accepts the power on command. But the relay does not engage or close but voltage appears on the relay coil re1. and the coil resistance is normal compared to another relay from.same.tv | Change re1 because even with the normal coil it can be altered | @gepe | |
| PHILIPS | 42PFL3403/78 32PFL3403/78 LC8.1L LA | No audio on all video inputs (antenna, avs, hdmi no sound). but with normal audio on the headphone output. | Short-circuited capacitor, close to the 7411 audio modulator. | Replace of capacitors position (2420, 2423) value 10u x 16v. | rafaelmoraes99 |
| PHILIPS | 42PFL3403/78 | TV activates relay, LEDs and sound but does not turn on the screen | El43 broke the board | Mateus Meireles | |
| PHILIPS | 42PFL3403/78 | It doesn't turn on, you only hear the relay when you remove it from the socket. | Two 470/10 c108 and 112 capacitors on the 3.3v line | ||
| PHILIPS | 42PFL3403/78 MG8 | Doesn't start at all | Resistor r101 120r d101a e d101b | joao bosco | |
| PHILIPS | 42PFL3403/78 | Doesn't work | D130, 131,234 and q201 (all shorted) | Replace of d130,131,234 and q201. | LUÍS PIMENTA |
| PHILIPS | 42PFL3403/78 LC08.1LLA | TV turns on, the word blocked appears and turns off in 15 seconds | Capacitor 2p10 of 10 nf smd on ir/led board with leakage | I replaced the aforementioned capacitor (tsound is already a tip about it, but it says 10 mf, which is wrong) and it worked fine. | Fernando de Saquarema |
| PHILIPS | 42PFL3403/78 MG8 | Doesn't start at all | Resistor r101 120r d101a e d101b | joao bosco | |
| PHILIPS | 42PFL3403/78 | Doesn't work | D130, 131,234 and q201 (all shorted) | Replace of d130,131,234 and q201. | LUÍS PIMENTA |
| PHILIPS | 42PFL3403/78 LC08.1LLA | TV turns on, the word blocked appears and turns off in 15 seconds | Capacitor 2p10 of 10 nf smd on ir/led board with leakage | I replaced the aforementioned capacitor (there is already a tip about it, but it says 10 mf, which is wrong) and it worked fine. | Fernando de Saquarema |