Repair Tips
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Results: 88086
Results: 88086
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| SAMSUNG |
CL29Z43MQ
|
Device did not hold the tune, (it kept escaping as if it were a defective varicap) | Check if any of the resistors in series are open (r829, r831 and r830 all 15k) in my case it was r830. | Replace the resistors. (edfesom varjota-ce) | Edfersom |
| SEMP TCL TOSHIBA |
32L1800
|
Burning LED bus. | Voltage above normal at the backlight power supply output (77.5v). the expected was 72v. | I replaced the values of r795, 796, 797 (0Ω) to 1Ω. next to the u770. correcting previous tip!-->> note: remove r796 then the voltage drops to 72v | EvandoViana |
| SEMP TCL TOSHIBA |
32L1800
|
Burning LED bus. | Voltage above normal at the backlight power supply output (77.5v). the expected was 72v. | I replaced the values of r795, 796, 797 (0Ω) to 1Ω. next to the u770, the voltage dropped to 71v. good luck! | EvandoViana |
| SEMP TCL TOSHIBA |
32L1800
|
Burning LED bus. | Voltage above normal at the backlight power supply output (77.5v). the expected was 72v. | I replaced the values of r795, 796, 797 (0Ω) to 1Ω. next to the u770, the voltage dropped to 71v. good luck! | EvandoViana |
| PHILCO |
PH24B LCD
|
Takes time to call. and when it turns on, it comes with multiple images, or duplicates (as they say). | Power supply with bad electrolytic capacitors. change all the stews. enter service mode and change the config id to cmo-m236h1 (service mode: menu>contrast>9735). (center sound tip (thanks)). | Eletrônica R-Tec | |
| SEMP |
TV2934CSL
SK91 |
Normal league with line at the top of the screen, vertical lines | Change resistor r333 .220r, next to the vertical ci | DJ PITUKA | |
| PHILCO |
PH39E53SG
|
The Philco logo appears and then goes out, but you can see that the white light is still on. | Apparently a defect on the main board. | I removed the memory and re-recorded, the TV worked normally again | Jhonnes Palmares |
| LENOXX SOUND |
MD-268
|
No volume, only radio function | Coils on line -12 and +12 | Replace the resistor-like coils but -12v and +12v lines | Eletrônica EMB |
| LG |
W2242C
|
Turning off the lamps | Worn out light bulbs | Put resistance of 560r from pin 1 to ground on the ci fan 7314 | Mariano |
| SEMP |
TV 2157NFS
U18 |
League without video, reduced horizontal frame. both sides. | Replace dioso zener d840 ,5,6v | DJ PITUKA | |
| LG |
CM
|
Turns on without sound and turns off showing s-pro | Zener diode 903 with leak in the primary. | Replace the same | M.zidane |
| LG |
14FK3RB
|
When you press the button to turn it on, the LED goes off, it tries to turn on but it doesn't turn on | 42 | Eletrônica Lima pb | |
| SONY |
GPX33
|
Does not turn on and 13v does not appear, generating a low whistle | In my case it was the c244 shorted near the dc power supply coil | Replace and run for the hug | ELETRÔNICA MUNIZ |
| PHILCO |
PB329BT
|
Turns on but no audio | Transistor q08 open | Replace 08 you can put bc847 | jorge-ivoti |
| SEMP-TOSHIBA |
40AL800
|
Turns on, backlight turns on and off. normal sound. | Open led on led bar | LED bar replacement | Andrey |
| TOSHIBA |
MS8012MU
|
No sound, no audio | R937 on pci power supply value 1k | Just replace and run for the hug | Vander CDs de Quixadá CE |
| LG |
21FJ6RB
MC059A |
Menu in Korean. reduced vertical | Withdraw c50. c51 r514 and r516 | Ricardo Silva | |
| CCE |
HPS 2971 FSG
|
Inoperative, with zero power supply. | I believe that the fly back shorted, burned the horizontal output, forced the power supply and shorted some of the transistors and the schottky diodes and fuse | After replacing the parts, everything was ok. | Eliel Magno |
| SEMPTOSHIBA |
TV1484FAV
U11 |
It arrived on my bench with a burnt flyback and open r430, altered r227 and dry c889, replaced components. TV turned on with a blue screen and the image closed, found c305 altered and d901 shorted without characters | R430 r227 c889 c305 d901 flyback | All components replaced TV turned on perfectly | Eletrônica Lima pb |
| TOSHIBA |
LC3246 W
|
Does not turn on the lamps | Model in which the power supply board is integrated with an inverter, if the 12v voltages and the on off pulse are normal, changing the circuit n701 ref.uba2072 in my case did the trick, I got it from another board. | Alberi F S |