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Results: 88106
Results: 88106
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| AOC |
LE42H254D2
|
Does not turn on, completely inoperative | I report that after lightning it stopped working. Source components burned: fuse, 2 x 11n60 in the primary and a double diode in the secondary. | In the tests, through the AC power input, the fuse was found to be blown, after which the power supply was still shorted, wsound the two 11n60 MOSFETs were found to be shorted, after changing them the power supply armed the 5v. However, when turned on, it just kept pulsing, so when searching the secondary, one of the double diodes was found to be burned out. After replacing it, it went back to normal. In place of the 11n60 I put the 10n60. | Margutek.BVA |
| SAMSUNG |
UN40C5000QM
|
No image | Main board q202 shorted or charred. | The q202 is a mosfet that feeds the t-com which damages due to something wrong with the t-com, check for shorts on the t-com, the q202 is a 6-pin mosfet, I couldn't find the TV schematic to put an original one with a lot of research I adapted another smd mosfet code: ao3407a with 3 pins that works perfectly before connecting the t-com turn on the TV without the t-com flat being connected and check if it releases the 12v line, if it releases the main board it's fine again, turn on the t-com after checking for shorts in the capacitors, I got 2 TVs with this same burning problem of the q202 and different places on the t-com one of the problems on the t-com after solving the short it still did not release the vgl and vgh which it was another smd mosfet broken with leakage, in the qp1 position it has a 3-pin mosfet and has the symbol of a ci drawn on the board, without a diagram again i used the same mosfet that i had already used in the q202 or ao3407a and then it released again the vgl and vgh voltages, only after that I turned on the display flats, making sure that all the voltages were restored, knowing that if something killed the voltages again it would only be the display itself, but both TVs and displays were good, and they worked perfectly again! I hope to help the group, as I have already been helped with other good tips published sound! | Play Back |
| PHILIPS |
42PFL3507D
|
Turns on whenever it wants, stand by off without 5v | Change the opto coupler ic 950 at the power supply, place a pc 817 directly replace | IRMAO | |
| LG |
21FU4RL
|
AV interference | Cap c803 seco 220µf/400v | Neno | |
| CCE |
LH42G
|
It turns on and then turns off, sometimes the image and turns off, it wasn't any of the memory. | Pci signal defect | Replace the signal board | ON-PLAY ELETRONICA |
| TOSHIBA |
MC 753DVD
|
Doesn't start | Power supply inoperative. | IC1 cq1265rt and the 18 volt dw4 zener diode were replaced. | Adriano Miranda |
| SEMP |
TV2092LAV
U16 |
When plugged in, the LED lights up and then goes out. | Shorted flyback | Replace o flyback | FLAVIO ARAGÃO |
| PANASONIC |
SA-AK330
|
F61 when connecting the CD optics PCI (amplifier outputs ok) | Lack of 8 volt CD power supply. diode d5807 open | D5807 replacement | Fábio |
| CCE |
HPS-2198AV
|
Sometimes it calls | Change capacitor c808 on 22mfx50v power supply | ELETRONEUBERT | |
| LG |
20CB20A
|
LED flashing intermittently | Zener diode position zd851 short or altered | Robenilsom Penedo;Al | |
| PHILIPS |
42PFL3604
TCM3.1L LA |
After some time on, the screen would turn blue with a blurred OSD, the speakers would beep loudly and the screen would turn off. | C115, electrolytic, value 47uf/6v, is close to the reset stage | Replacement | Leonardo Gomes |
| SAMSUNG |
T27A550
|
It turns on and off by itself, sometimes it stays on for a while but then turns off again. | Ic1204 - three-terminal smd on main board. | Replace ic1204 by removing it from another samsung tv. or replace it with a 3-terminal smd diode - bas21. | I.G |
| PHILCO |
PH39E53SG
|
Doesn't start | Regulator u203=tps54319 | I took it from a scrap board and it was fine | joao bosco gomes |
| PHILIPS |
42PFL3507
|
Negative image and retraces | C244(10µf smd) em curto na v-con | Replace c244 | Eduardo Fonseca |
| SEMP TOSHIBA |
DL3945I(A)
T390XVN01.0 |
Normal connection, without image, with audio without (video) | Ruler v-con "open" smd diode d204 | Replace d204 diode | Maike SR |
| SAMSUNG |
HT-DS100S
|
Went into protection and turned off | Voltage regulator aic3-1, ka7912 shorted | Replacement | Aurelio Machado |
| SEMP |
2134
|
LED turns on and off +b 170 and resets | R633 220k | Replace resistor 220k | eletronica carlos viseu PA |
| PHILIPS |
40PFL3707D/78
|
Won't turn on without 12v and 24v | Q903 open smd emitter collector close to the photocoupler | Jammed collector and TV transmitter started working again | LUIZ CONSERTOS |
| LG |
50PB560B
|
Turns on normally and turns off after a few hours | Replace all smd photocouplers el817 with leakage, q606 - d1347c, q301 - c3198, q502 - c3207y with leakage, d303 - uf4007, d304 - 1n4007, zd303 - c10v all bad with leakage, c308 and c609 - 100uf 50v with leakage ,c809 - 22uf 50v bad | I replaced all these components, the TV didn't turn off but the problem was resolved | andre |
| PHILIPS |
32PFL3008D/78
TPS10.1L-LA |
The LEDs turned on and off. The Philips logo didn't appear and it already turned off | Corrupted memory data | I re-recorded the data with a recorder, copy the data from another TV like it | rogerio.sc |