Repair Tips
Search:
Results: 88154
Results: 88154
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| AOC |
LE22H158
|
Turns on, disarms, returns stamby (from blue to red instantly) | Apparently normal power supply - c.elet 470µf/10v and 47µf/35v changed | Replacement c9101 and c9105 | Galdino Audio & Video |
| AOC |
L32W431
|
When pressing the power button, the TV does not turn on, the blue LED flashes and after a few seconds the same LED turns orange, all voltages appear on the power supply, but the 5V voltage oscillates | The circuit close to the doubler capacitor contains two 1mega SMD resistors, which are altered. | Replace the two components and go out for a hug | Wagner Júnior |
| SAMSUNG |
PL434900AG
|
Does not turn on, stand by LED is off, only main board LED blinks a few times | Capacitor, CS809S position open on the power supply board | Replace it and check the voltages vs,va | KL. ELETRONICA |
| AOC |
L32W831
|
Turns off after a while. As it heats up, a noise, noise, hissing at the power supply, in the pfc transformer, increases. | Pfc circuit resistors r910, r911, r912, connected in series and smd. all 1mΩ. | Just remove, scrape, clean the glue and resolder in place. | Eletrônica R-Tec |
| SAMSUNG |
2033M
|
Turns on and just flashes the screen and turns off | Weak light bulbs | 560Ω resistor between bl_on pin and ground. placed at the connector input coming from the main board. canceling the lamp sensor. | Cláudio A. |
| SEMP TOSHIBA |
LC320...
|
Does not turn on, verified that 12 and 25 volts do not come out of the traffic. | Photo coupler near the defective transformer. | It was replaced and it solved the problem | Rodrigo |
| AOC |
LM520
|
Doesn't start | See faulty welds on the power supply | Resolder connectors that have cold solder | Duarte Pacheco |
| AOC |
LM722
|
Image appears and goes to standby | Check capacitors in the power supply c201, c215, c216 and c223. see defective sodlas and q211 and q212 (tip41) | Rectify welds, replace defective components | Duarte Pacheco |
| BENQ |
FP767
|
No visible image | Cold welding causes some fuses to open, leaving the device without image or inoperative | Replace open fuses rectify faulty welds | Duarte Pacheco |
| BENQ |
Q7C3
|
No visible image | Cold solders cause some fuses to open, leaving the device without an image | Replace open fuses rectify faulty welds | Duarte Pacheco |
| BENQ |
T905
|
No visible image | Apparently tsound seemed to be some cold solders, but after seeing the fqu11p06 and 2sc5707 I ended up replacing them all | Duarte Pacheco | |
| PHILIPS |
NTRX 500
|
Does not turn on, however, functional display, no power and control panel LEDs lit, light ticking on the speakers | Leak no c521 (47u, pine 38 of u501) | Replace electrolytic capacitor with 22u smd ceramic, in this case soldered on the copper side in place of the one removed | Radek |
| BANDA |
VOXER EXPERT
|
Two-channel module; one plays louder than the other | Mono/stereo selection switch | Replace the key | Victor Aurélio |
| LG |
32LD460
|
Turns on and works for a few seconds without an image and turns off remaining on standby | Mosfets q708 q709 shorted and fuse f501 open. check the q707 and q710 on the same heatsink. | Changing the transistors and fuse. | Multimídia |
| PHILCO |
PH24T21DMTR LED
|
Does not turn on, 3v and 12v power supply | C106 com riple | Replace c 106 4.7nf 50v | POLYTEC |
| RECEPTOR NOSTEC |
RXC-5
|
With image only in av. | Change ci u1 11585. smd below the tv out output. In my case, I placed a 10nf/16v electrolytic capacitor between pin 16 and ground and the image appeared. but with poor quality. | Replace u1 smd under the tv out output or just place a 10nf/16v capacitor between p.16 and ground | MARCONES DE ARARIPINA-PE |
| SAMSUNG |
LT27A550
|
Screen LEDs turn off and on | Ci oz9998bgn | I replaced the ci smd oz9998bgn solved the problem | Jetro |
| SONY |
HCD-GTR8
|
Tsound is only sound on the sub | Broken ac-cut track that goes from pin 9 to r1307 smd next relay also open resistor r1331 | leo | |
| TOSHIBA |
2083AAV
U9 |
The TV was just on standby without any buttons working, nothing, all the normal +b voltages with the exception of the vertical voltages. | Vertically shorting the first three pins, killing voltages. Replace the ta8403k together with the capacitors. | Léo | |
| BENQ |
MP-515
|
Doesn't start | Resistors r662 and r663 | Replacement with new 47Ω according to the diagram | Cláudio A. |