Repair Tips
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Results: 88011
Results: 88011
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| LG |
42PJ350
|
Blurred image | Resistor set down r729 2r2 2w aberto | Replacing the resistor | TECCENTER |
| SAMSUNG |
UN32F4200AG
|
Image with excessive brightness | V-con board damaged by cockroach piss near dc circuit | Tip given by Andre, thank you brother. | MILENIO ELETRONICA |
| SEMP |
XB4351MP
HOME THEATER |
Turns on normally, with low audio. mainly on the subwoofer. | 2w 410r resistor r46 on the power supply board open, preventing 12v from reaching the amplifier board... | Make the replace, solve it. or an approximate value... | JC Eletrônica Cícero |
| SONY |
KDL-46R485A
|
After some time on, the backlight turns off and flashes until it no longer lights up. Even with the backlight turned off, the standby LED remains green and does not blink 6x. also the sound remains normal. | After making the jumpers across the entire bus and checking that the LEDs were good, I thought it could only be a defect in the inverter circuit, but it was also fine. the defect was in the bl-on that comes from the computer to enable the inverter. | With the blower at 370 degrees on top of the computer for 5 minutes. In my case it was resolved. | Wagner Gois |
| LG |
42LM5800
|
Sometimes it calls, sometimes it doesn't. turns off blacklight after a few hours | Probable failure in the main IC. changed the main, resolved | Replaced main board and resolved | |
| SEMP TOSHIBA |
40L5400
|
It turns on normally, the logo appears and returns to standby. | Several LEDs burned out, the complete set was replaced. problem persisted. | Defect in the 3.3v regulator 1117-33 silkscreen in this version n808 marking 2.9v. replacement made and problem resolved | |
| PHILIPS |
AS 405
|
Power led does not light | Just give it a touch | Fredy | |
| SAMSUNG |
UN40EH5000G
|
Standby LED blinks indicating that the TV has turned on, but the LEDs do not light up, all voltages are normal. | Metal connectors on the LED bars are loose, just tighten them and the LEDs will light up again. | DV Elêtronica | |
| PANASONIC |
SA AKX100
|
Doesn't start | Ic1002 | Replace the ic1002 (tps54240) and the smd diode next to it (the biggest one) ss36 - the same double as the sa-akx38 | Baguatech |
| SEMP TOSHIBA |
40L5400
|
Does not turn on, does not oscillate primary power supply. | Short circuit in the 6v8 smd zener diode in the primary power supply position VDW904. If the TV still doesn't turn on, also replace the CI PWM Fan6755W | rafaelmoraes99 | |
| SAMSUNG |
PL43F4000AG
|
Turning off after a while | Ts801cs and cs809s with cold soldering | Resoldering of ts801cs and cs809s | KAIO GARCIA |
| SEMP TOSHIBA |
DL3244(A)W
|
Does not turn on, stand-by turns green but does not start. without +b 12v | Transistor npn smd vw971 (2n3904) | Transistor responsible for powering the power supply, replace it with any NPN 40v 500mW. | Beto Eletrônica |
| PHILIPS |
43PFL3707D/78
|
Shutting down, it crashed on startup | Regulator u701 g1084-33tu3uf, 3v3 regulator varying voltage between 3v6 and 3v7 | Replace the regulator and add the c719 220μF 16v, go for the hug | Valdecir Schena |
| SONY |
KD-43X705F
|
Does not turn on, red LED flashes 4x | Power supply board generated 12v and then disappeared | Shorted capacitor removed from the 12v line of the tcom board | LEO DA MEGA SYSTEM |
| PANASONIC |
TC-29Z99L
|
Turns off when placing image | Memory validates | Replace or rewrite | Velk |
| PANASONIC |
TC-29Z99L
|
Turns off when placing image | Memory validates | Replace or rewrite | |
| PHILIPS |
32PFL3606
|
Resistor next to the indication k1 with a value of 750k/smd | You are giving tips without even checking the model, this solution described is for model 32pfl3605 and it does not work for 32pfl3606, pay more attention to what is posted without checking the correct model guys | ||
| MARK AUDIO |
MK-6500
MK-6500/MK-8500 |
Burning output 2sc5198 / 2sc5200 (2sa1941 / 2sa1943). on the mk-8500 it is worse, 750w into 4 ohms, gives 4.6a per transistor | See schematic, 2a current limit protection, see transistor datasheet safe operation area 1a only | Replace resistors from 0r33 to 0r68 and double the number of outputs, or install a stronger transistor | R |
| SHARP |
21LF2A
21 |
Only turns on red light | Power supply | Jordão | |
| PHILIPS |
FW-C505
|
I'm sound | 7501 tda 7468d ruim | To replace | Adriano |