Repair Tips
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Results: 88099
Results: 88099
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| AOC |
LE32S5970
|
Flashing backlight | Ripple na power supply dos 20v | Place a 1500μFx35v capacitor in position c9101 | TV CENTER GUAIBA |
| AOC |
LE32S5970
|
12v low flashing backlight | Low power supply r9141 | Put a resistance of 1k8 in parallel with r9141. | TV CENTER GUAIBA |
| SAMSUNG |
P 2270 HN
|
TV turns on with normal audio, no image, appears to be defective in the LEDs. | T 301, inverter transformer (tm 09180) with one of the output coils broken, you have to take it out and measure, 1.4k, depending on the code, it has to have the same value. | Changing the inverter transformer. | Geraldo de Petrópolis |
| LG |
CP-15Q90A
|
Without vertical and horizontal synchronization | Eeprom memory | Rewrite memory | |
| CCE |
LH42G
|
TV won't turn on without standby | Changing the +5v line capacitors | PAIM ELETRONICA | |
| AOC |
LC32D1320
|
"the screen doesn't light up" | PFC power supply with 305v, normal 389v on 220vac network. | Check voltages in q921, collector 18v, emitter being below 14v check base voltage, being below 14.5v see possible spark in zd930 of 15volts 400mw. | Carlossbs |
| LG |
CM8340
|
Cuts audio when volume increases | C920 or r919. measure voltage on the c920 value =100mv, if it is lower the problem is on the c920. check r919 out of circuit 1mega | Chicoalagoinhas | |
| PHILCO |
PH21M
|
Working, but with a buzzing sound in the power supply transformer, sounding like a cricket. | D-802 as leak. | SANTANA | |
| PANASONIC |
TC-L32U30B
|
Does not turn on/ red LED flashes 3 times | Capacitor c4012 smd 10uf shorted on the main pci (positioned between the power supply sockets and lvds) | Remove and replace with electrolytic. | duc40rj |
| CCE |
STYLE D3201
|
Does not turn on, voltage 5v low and varying | R28 value 3k3 smd, changed to 1k3 | PardalX | |
| CROMUS E BEDIN SAT |
CR1500 PLUS E BS3100
|
Black screen | Qv8 short | Adrian Chapadão do Céu Goiás | |
| CENTURY |
NANOBOX
|
Normal video, without audio | Qa 23 short bc847 smd replace with bc547 observe pinout | ELVONEUTON FRAGA CAETITÉ BAHIA | |
| LG |
32LB550B
LT43B |
With sound and no image, but backlight on | Transistor q 405 on the main PCI burned out, I replaced it and the TV kept restarting then I found capacitor c135 on the screen board short, I replaced it and it worked perfect | Q405 main board and C135 screen board. | MARCELOTJ |
| SAMSUNG |
UN40H5100
|
Stuck on the samsung logo, then the logo changes color giving the impression that it IS the screen | Change nand memory | MARIANO | |
| PHILIPS |
29PT9467C
|
On/off then (image frame reduced when the screen was enlarged) | Replace the capacitors of the horizontal circuit c438/c431/c432 | eletronica junior reginaldo moronte | |
| SAMSUNG |
LN26B450
|
Doesn't start. | No voltage in the secondary. identified burned fuse FM802 (amp) and also IC (ice3br0665j) short signals on pin 4 with considerable damage to terminal 4 of the IC | Changing the fuse fm802 and the ic um801s (ice3br0665j), everything works normally. | CDS_DIAS |
| LENOXX |
CA-318B
|
Display goes off when you turn on the power key, only one green and one red ledy turns on but the display does not turn on. | R55,r13,q1 | Replace the r55 of 10r and the r13 of 10r as well and the transistor q1 which is the s8550 and that's it the box was beautiful! | Sinailson furtado |
| CLARO |
N-5366S
|
Tny 178 burning. he changed it and burned it immediately. | Bad power supply filter capacitor causing the ci tny 178 to burn | Replace tny 178 and filter capacitor. | |
| PHILCO |
PH28T35DG
|
TV turns off after a while of use, intermittent sometimes | D201 | The audio ci was getting hotter than normal at low volume, I threw heat on it with the blower and the TV turned off immediately, I replaced the d201 which looks like a transistor and it went back to normal. | AlanCocteau |
| PHILCO |
PH28T35DG
|
TV turns off after a while of use, intermittent sometimes | U501 | The audio ci was getting hotter than normal at low volume, I threw heat on it with the blower and the TV turned off immediately, I replaced it and it went back to normal. | AlanCocteau |