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Results: 88035
Results: 88035
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| SONY |
KDL-32BX325
|
TV turns on whenever it wants | Power supply voltages ok, but on the main board, the u701, which is a 3.3v regulator, had a low voltage (1.3v). it was just a matter of changing and running for the hug. | ||
| LG |
42LB5800
|
Turns on appears shortly after turning off backlight, only the sound remains, if you increase backlight and turn off energy saving it works normally for a while. | Q803 2nf20l with leak | Replace | Hndrs |
| LG |
55UH6150
|
Dark image (not a LED defect) | Faulty LED circuit in the power supply. Tsound are many complaints about this defect about this model on the internet. Don't just pay attention to the damaged component. | Replace the ci ic601 (map3516) and the fets q201 and q202 (5n40). preventively, I replaced the 2 electrolytic capacitors (10μF x 350v) and 2 polypropylene capacitors (470nf x 400v) | PIXEL ASSIST |
| LG |
CM4350
|
Does not turn on, inoperative, no voltage 5.6v | Power supply mosfet transistor shorted. | Replace with an 08n80c3 or equivalent. After the replace, the sound worked again. | Tiago C. Neves |
| CCE |
D3201
|
Colors with a lot of contrast | I don't know | Erasmo Peixoto | |
| PHILIPS |
32PFL3508G
|
Doesn't turn on, dead power supply | Zener diode zd9103 of 27 volts altered to give 5 volts | Ariel Santos | |
| CCE |
TV-1418USP
|
Image closed half down with horizontal lines | Capacitor c425 470uf 16v low capacitance | Eletrosom seemann | |
| PHILCO |
TV PH42 LED A2
|
Red LED on TV won't turn on | Disconnect the LVDS cable, if the TV works, check that tsound is a shorted capacitor in the TCON. | Valdecir nascimento | |
| SEMP |
LC 4243
|
Doesn't start | Replace str z2589 + fuse 2amp 250 v | Power supply board | Exdo |
| ONEAL |
OCM290
|
Snoring in the audio, even with the volume all turned down, increases the symptom with the bass potentiometer all the way open to the right. | Ground loop, in (jamper j15) in front of the com1 connector. | Remove the jumper, make the ground connection, with a piece of wire, from the negative of c31, c32 to connector (con 6) completely stops the snoring. | caim |
| PHILCO |
PH42E53SG
|
It doesn't turn on, it just stays on red stand-by | Power supply | Replace of capacitors at the power supply, position ce2 and ce3 of 47μF x 450v | Brackmann |
| PHILCO |
PH32E32D
|
Does not turn on, power supply primary inoperative. | Ic 2 with problems ld7577jags, pin 6 with less than 12 volts. | Replace do ic u2 ld7577jags | LABOTRON |
| LG |
28MT48S
|
Doesn't start | Shorted wifi card | I removed the connector and turned on the TV | Tec Center |
| LG |
22MA33N-PS
|
The image keeps flashing on LG and it doesn't turn on. | External power supply with open filter capacitor. | eletrofepar | |
| LG |
CM8350
|
One of the channels goes silent, without sound, and after a while, it goes into protection, sometimes. | Affected output driver failure | Leakage in the capacitor connected to the driver's CSD pin causes the voltage, which should be 5 volts, to drop, disabling the output switching. | Davi.sls |
| SONY |
KV-29FA210
BA-5D |
Dull, increasing screen gives retrace lines. | Resistor 33k aberto r547 | Resistor replaced and defect corrected. | Tarcisio Brito |
| LG |
CM8350
|
Display lights up normally, but tsound is no sound on any of the channels. | One of the optical barriers had a broken pin from so much oxidation. | All I had to do was replace the barrier and the sound returned to normal. | 2000 |
| SONY |
KDL-46R485A
1-888-722-12 |
Completely off, no standby | Shorted capacitor close to the ic4000, it is the one closest to the edge of the board. With the short, he also blew fuse f4000. As I didn't have this fuse, I replaced it with a ferrite inductor (fb) from scrap metal. | Be very careful because on the first attempt to repair this capacitor I replaced it with a 47μF/25v electrolytic and it didn't work. Only when I replaced it with another one larger than 100μF/25v did the board turn on standby. Furthermore, be careful when choosing the capacitor because the supply voltage is high (19v). The board's architecture is very good, it's every technician's dream since each subcircuit has a fuse, making it much easier to locate the defect. | 2000 |
| SEMP |
2934
|
TV doesn't turn on! no sign of anything! | After removing all the cold solder, the tufted capcitor, I replaced the epron, it turned on and off, then I replaced the transformer (this was after changing several parts and IC and it was not solvable)! Replaced the transformer and the TV was perfect! | ||
| SAMSUNG |
UN39FH4205/5205
|
When you plug the TV into the socket, the LEDs blink and it doesn't turn on. | Ic 201 short | Eletronica Mirage |