Repair Tips
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Results: 88099
Results: 88099
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| PHILIPS |
32PW8422/78
L05L AA |
It doesn't turn on, sometimes it turns on and off, | Replace cap 2510 and 2511,22uf 50v, resistor 3401 47k. at the power supply | DJ PITUKA | |
| SAMSUNG |
UN32F4200AG
|
Inoperative, power supply working on main without standby. When connecting to power, the LEDs flash quickly. | No 3.3v power supply in bios. | Ic 201, regulator, is above the bios, looks like a normal transistor. it lowers it from 5v to 3.3v. it was dropping 1.7v. to replace. | Eletrônica JJ |
| LG |
42LB7DF
|
Does not tune dtv channels | Ripple in food | C817 replace | Marcos infotron-ltda |
| ANKO |
AKB-5X104
|
Doesn't work. voltages 5v and 1.2v ok. line and 3.3v shorted. | C35 shorted. | Replace capacitor | UedersonFR |
| LG |
42LG50D
|
No image, no sound, turn on the BL | All normal voltages | Reflowed the bga and everything worked again | CDS_DIAS |
| SONY |
40EX525
|
Glitchy and duplicating image. | Display with altered sync. | On the flat cable of the left tcon between the vcst and vcomg, isolate contact no. 10 from the right to the left, if the image is normal but red, it is a sign that you isolated more than 1 contact, it needs to be a very thin piece of tape preferably kapton. | Antony Garcez |
| SEMP |
TV2934BSL
SK91 |
Remote control doesn't work. | Replace zd200.5v1 zener diode on the micronas side. | DJ PITUKA | |
| SAMSUNG |
PL42C430A
|
No sound. Turns on with normal image but tsound is no sound. | Ceramic capacitor shorted on the audio line on the main board. | Replace or remove capacitor in position c1371, close to ci tas3715. | Eletrônica Video Color |
| SAMSUNG |
CL21Z50MQ
|
It has audio but does not play sound from the converter | The tajá increase suddenly stopped. slow down but don't talk | Silvio | |
| ELECTROLUX |
MEF33
|
The keyboard does not work, with one or more segments of the display off | It gives the impression of being the membrane, but the problem is the shorted display. | After changing the display, it works again. | Miratec Eletrônica |
| LG |
22MA33N-PS
|
Has sound. without backlight | On the black flat, remove the white support. make a bend in the flat contacts. remove the black socket from the board. solder the contacts directly to the board. Solder the peto socket onto the flat to secure it to the board. | Jocimar | |
| SAMSUNG |
LN32B350F1
|
TV doesn't turn on | Tcom board with open fuse and shorted capacitor cd20. Just isolate the TCOM card and the TV works | valter | |
| PHILIPS |
39PFL4707
|
The TV turns on more if it turns off, it no longer turns on, the voltage on the u701 regulator is high. | Change the 3.3volt regulator u701 on the main board. | Replace u701 in the main. | <small>wellingtoneletronicasilva@ bol.com.br</small> |
| SEMP |
TV2090
|
Direct fuse blowing | Net power supply diodes and strw so switch and run pro dimdim | ELETRONICA PUBLISOM RGN | |
| TCL |
L43S4900FS
|
When turned on, TCL appears and disappears in 5 seconds, turning off the TV | Checked all voltages 12v, 89 v (LEDs) and tested the LED bus, everything ok, removed the Wi-Fi card and it continues to turn off. | The firmware was updated according to the TCL procedure that comes with the file (.zip), everything resolved. Note: use USB input 1, wait about 5 minutes until the LED on the panel stops blinking, then just turn on the TV and run for a hug. | CDS_DIAS |
| CCE |
STILE D37
|
Nao sai do standby | U 5 | Replace 1.8 regulator | ELETRONICA COBRA |
| PHILCO |
PH42M
|
TV turns off the image after 20 minutes. | Transistor a19t - ao3401 - leaky (heating too much and turning off the 12v supply to the t-con. | Replace said transistor. | JHtron |
| PANASONIC |
TC14RM15
GL1 |
Does not turn on LED blinks activates protection raises protection turns on with half screen | See open 2k7 resistor 405 | paulo antena | |
| POSITIVO |
Q232A
|
Test the board to see if the problem is not with the keyboard | Remove the keyboard and use tweezers to "short" both poles of the third keyboard capacitor. | As shown in this video. https://www.youtube.com/watch?v=7lghv5ratey | |
| POSITIVO |
Q232A
|
Device turns on green light when connecting the battery but does not turn on | Bad keyboard won't turn on the board. I would have to change the keyboard. | As I couldn't find this keyboard to buy, I dismantled the keyboard, identified that one of the power button tracks was "burnt" and repaired the track using electroconditive paste (mcn-dj002). | Darci Denzer |