Repair Tips
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Results: 88168
Results: 88168
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| PHILIPS |
32PFL3404/78
|
Turns on, everything is normal, after a while on, video disappears, sound remains, lamps on. | Capacitors c532, 534, 526,528, 529. | Replace them all, everything goes back to normal. | arock |
| SEMP |
2090
|
Heating until the bu808dfi horizontal output burns out. | This TV heated the horizontal output a lot even though I replaced it with other similar transistors, the defect remained. | Connect two d2539 or 1803dhi transistors in parallel, connect base to base, collector to collector, and emitter to emitter. preferably place it on a heatsink. Even though they work with temperatures that don't exceed 50° and that's it, the TV will never have any problems in this place again. | MARCONES DE ARARIPINA - PE |
| PHILCO |
PH21MSS
|
The sound takes up to 30 minutes to appear after turning on the TV, returning gradually. | Remove the 47uf capacitor c605, close to the audio amplifier. | Cleber Jean | |
| ZEBU |
ZK220
|
Doesn't start | R6 de1m aberto | Replace | Fabio |
| SEMP |
TV1450MAV
|
All blue fabric | Resistor 963 (15k) completely damaged | Marcos cientista | |
| PHILCO |
PH21B
|
Dark band on the left side went almost to the middle with h synchronization. varying with sawtooth noise. | C450 seemed to be good, but I just changed it and it was fine | <small> |
|
| SAMSUNG |
T27A550
PD27A0 |
The TV started turning off and on, then with use it stopped turning on, it kept showing the "logo" and turning off, then it didn't turn on again! | When turning off the main board, the backlight lights up normally, giving the false idea that it was a defect on the main board, but when measuring voltages I noticed that they varied a lot, I tested the main board with an external power supply and tsound was no high consumption. | So I replaced the icm-8015 on the power supply board, which is a strw6035s, and it worked perfect! | SCINFO |
| PANASONIC |
SA-AK300
|
F61 | Redo the soldering of the transistors of the sound outputs 500,501,502,503 and it did not fit well on the large side plate, it was making bad contact | GENOCIR | |
| LG |
RAT376B
|
No audio | Zd905 20v | Replace without measuring | eletronica tape video |
| PANASONIC |
MX-D830
|
Turns on, with all normal voltages, but tsound is no sound | Memory locked due to some error in the device | Reset memory mic4 25l1006. temporarily short circuit pin 8 of the 3.3v to gnd while turning on the device. When the device starts up completely, remove the short circuit. | Jump Eletrônica |
| LG |
32LG30R
|
It turns on and when it turns off it doesn't turn on again | Removed protective components | Done according to previous tips, removing components c108, zd111 and zd112, and replacing r128 with a simple 15k resistor | riconsentino |
| PHILCO |
PH21SS
|
When turned on, it made a horizontal buzzing sound, an image appeared and closed, as if it were a low primary power supply, then turned off; closed on the right side about 4 cm | C435, c450, r441 and 45mh inductor next to resistor 441 | Resolder the other cold soldering points | Fabio |
| SAMSUNG |
UN32C4000
|
No secondary voltage. | Db851 and dw851 diode | Just replace it and the 5v voltage appeared! | Rafael Sena |
| PANASONIC |
TH-42PV80LB
GPH11DA |
TV does not turn on, red LED flashes once. | Cold solder on the bga microprocessors on the main board a. | Resoldering of bga microprocessors position ic8001 and ic9901 | Rafael do Carmo |
| LG |
42LH40ED
|
Power on, panel access, no image | Cold shoulder and bga | Reflow na bga. ic100 | CELSOKAYRAN |
| SONY |
KDL -40EX405
|
TV doesn't turn on, red LED flashes 3 times | Check on main board f3700 3.15a and f4200 5a | Replace | eletrônica valdecir |
| LG |
37LD840
|
Standbay LED on, but does not turn on | Defective main board, cold soldering on the bga. | Reflow na bga. | CELSOKAYRAN |
| PHILCO |
PH14 ULTRA SLIM
|
TV turns on and normal picture, but no sound. | C563 and c564 de1000ufx25 without capacitance or bloated! | Replace those capacitors and move on! | jailson lima |
| PHILIPS |
40PFL9605D/78
Q551.1L MONET |
Disappears image, flashes image, and turns off with LED flashing 9 times. | On the t-con board, check the 15v supply. tsound is a ci position switch fet1102 that stops working and does not release the 15v forward. | Replace the component, or place a 1r x 1/4 resistor in place of the switching ci. | Rafael do Carmo |
| STI SEMP TOSHIBA |
LE3973
|
It doesn't turn on, only the stand by LED lights up in green when it's correct and it turns red | Without 5v in regulator u8 as1117 | Following the trail on the back of the board tsound are black diodes, in my case d1 was open. |