Repair Tips
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Results: 88099
Results: 88099
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| PHILIPS |
21PT8467/78
|
It turns on with a kind of green outline in the image (reflects the green) and turns off, setting up protection. | Picture tube (kinescope) | Replace the same. (edfesom:) | EDFERSOM |
| SEMP TOSHIBA |
LC4241W
|
Does not turn on, without voltage of 5v and so on, does not hit the relay | Capacitors c866, c842, c843 all 22uf/50v open | Touch the same | Julian C Braga (Hitech) |
| PHILIPS |
33PT574A/78
|
LED does not turn on. | Capacitor 2540 | Capacitor 2540 at power supply 100mf 25v...close to ci 7520 | OSCAR |
| SONY |
KDL-40R485
|
It turns on normally, when an image with any video signal appears, it turns off and sometimes restarts and the stand by LED does not flash, which could indicate a possible failure. | In my case it was due to a failure in the connectors on the rulers, I made the connection with a thin wire between each ruler and its respective point and it solved the problem. | Alberi F S | |
| LG |
47LW6500
|
Turns on and no picture and no sound | Redid processor reflow and capacitor c5412 in short dropping 1.2v_frc | CARLOS STYLO | |
| SAMSUNG |
PL42B450
|
S.by lit directly. power supply only arms if forced p.on. seems to be the main one, but it was the sensor board | Cap smd | Alexandre Batista | |
| SAMSUNG |
PL42B450
|
Negative and grainy image, (whitened) twisting or squeezing the y-driver sometimes becomes normal (m.contact) | Tr, mosfet 2n60 intermittent defect, tsound was no point in resoldering. | Replace mosfet 5501 | Alexandre Batista |
| LG |
50PJ350
|
It didn't work, check if tsound was a short and I only found it on the 5 volt line. | Main board, c502 underneath and next to the p500 connector | fabiusmax | |
| SAMSUNG |
LN37D550K7
|
Does not turn on. stand-by LED is blinking. | Shorted capacitor smd c1011 on the board close to the Audio out socket. | jositecalves | |
| SEMP TOSHIBA |
LC3246WDA
|
Does not turn on, LED changes from red to green, but no image | Power supply without 12v and 24v | Check resistors around the IC of the NCP1653A PFC, to facilitate identification, measure the voltage above each one, equal resistors in series must show the same voltage drop, so an altered resistor is discovered, most of the time it is the glue under the resistor , you have to remove and scrape the glue! | Lucas |
| TOSHIBA |
U15
U15 |
LED on but not turning on, voltage+b 118v, heating up q430 | Capacitor c419 without capacitance (plays the role of the horizontal driver transformer on TVs that use it) | After replacing the capacitor everything went back to normal | Lucas |
| SAMSUNG |
UN40J5200AG
|
Completely stopped | Dm8610 diode shorted, just change it and it will be fine | sergio marques | |
| PHILCO |
PH21M SS
|
TV turns on with 3 colored lines at the top of the screen | Vertical filter capacitors | Replace them all | ASSISTEC |
| PHILCO |
PH21M SS
|
The TV arrived without turning it on, just with the LED on, when I pressed the power key it turned off the LED and turned it on again but it didn't turn on | The cause of the defect was the shorted vertical ci tda-78141 | After changing the ci the TV works again | ASSISTEC |
| TOSHIBA |
TV2959
|
Doesn't tune, just drizzling, 32v missing on the tuner pin | Leaky diode d101 | Marcondes Ohm Eletrônica Jaicós PI | |
| SEMP TOSHIBA |
TV2959
|
Low sound | 2 47/25v capacitors next to the sound output | Marcondes Ohm Eletrônica Jaicós PI | |
| ACER |
ASPIRE 5750
|
It doesn't turn on without a battery, it doesn't charge the battery, the battery and power LEDs flash alternately. | Mosfet p1403evg shorted | Replace with p2003evg (if you can't find the original), found in almost all positive notebook scraps | Carlos CTE |
| SAMSUNG |
LT9B300
|
Dead secondary power supply. | D861 shorted! (generates the initial a5v) | Replace for the same one. | EvandoViana |
| PHILIPS |
42PFL5008G/78
L12M3.1L LA |
TV turns on stand by light, sometimes it turns on or just stays on stand by | In 450v capacitors (c9801, c9802 and c9804) it is around 295 or 310v which is correct and around 380v (b1+) | Changing the q9801 (stf24nm60n) and ic9801 (r2a20133esp), in my case I replaced just the ic9801 and it resolved, before checking if pin 8 has around 15v | LUCIAN OLIVEIRA 61-991271532 |
| CCE |
HPS2097
|
Vertical closed at the top without +12v. | C426, c425= 470uf 16v. no capacitance | NILMAR |