Repair Tips
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Results: 88065
Results: 88065
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| PHILCO |
PH32B51DSGWA
|
Inopernate nem led stand by acende | Ci nw901 ld7536r no primary from ruim power supply | Replace nw901 ld7536r | NEI |
| PHILCO |
PH32E20DSGWA
|
Lights up stand by but doesn't turn on | Resolved with an update that was carried out with the black light turned off but you could see the process in the background, after finishing the stand by LED went off and the TV turned on normally | eletronicatual mondubin | |
| SAMSUNG |
CL21A551ML
|
White image with retraction line and cushion effect | 200v track starting between d407 and j252 | MEO-ELETRÔNICO Cajupiranga (RN) | |
| LG |
28MT49S-PS
|
No image, LEDs on, with sound. (It may happen that the LEDs are off too). without the 12v that powers the screen. | After checking that the board was not sending 12v to the screen, I measured the short with the multimeter and found some capacitors that work with the LED driver IC. I soon identified the burnt IC. | Replace IC601 (MP3378R). | World TV - Sorocaba |
| PHILIPS |
42PFL3605
|
No image | Lamp board | Replacement | beto |
| PHILCO |
PH58E51DSGW
|
LED bus current reduction. | To reduce the current voltage of the LED bus on the inverter board with the ci hai 7203ha. Currently this CI does not have a datasheet. remove the 20kΩ resistance from each ci on its pin 12 and place a 30kΩ one or associate it in series with a 27kΩ resistor plus 2k7.Ω, totaling 29k7Ω or 27,700Ω r102 r202 r302 the original value of each resistor is 20kΩ. the original working current is 1,166 amps. With the change, the bus will work with a current of 0.866 amps, leading to a reduction of 25.75%, guaranteeing a longer useful life of the bus. | aldin | |
| CCE |
TV 2118USP
|
TV turns on normally, but with reduced vertical at the top and bottom. | Resistor 308 or 309 of 1r and 1r5 changed. | Make the replace God bless. clebson vale - sao joão de pirabas-pa. | Clebson Vale |
| YAMAHA |
RX-373
|
Doesn't start | Press tone control and straight at the same time and keep pressed press and hold power, wait about 3 seconds and release, the device should turn on again | adir figueiredo | |
| ASUS |
GTX1050TI 4GB OC CERBERUS
|
Neither video nor 3.3v | Sot-23 mosfet that drives the large sot-23 mosfet with the power supply connected to 12v close to the motherboard connection | Apparently it was a leak, I removed it and resoldered it and it started working. | Davi.sls |
| SEMP |
LC4245W
|
When turned on, it remains in the colored pattern, alternating colors red, green, blue.... | Defect in position memory n305 | To be sure, remove this memory, turn on the TV and see if the problem has been resolved. In my case, the TV had no sound so I had to re-record this memory and put it back, problem resolved. | mfelipe |
| STI |
LE4050
|
Tsound is no image, the stand by LED turns on and off normally | The 25 volts don't have just 18 and the 12 volts only have 6. | Nw952 tl 431 replace. | Eletronicaaeb |
| SAMSUNG |
LT22A550
T22A550 |
It works but the back light doesn't come on. replacement of the ICD801, DD850, QD850 on the power supply PCI. | Icd801-oz9998bng , dd850-sr210 , qd850 10l01 (mosfet). | It worked perfectly after replacing the components described. I used the 15l01 instead of the 10l01 and it worked very well. This TV monitor is using the bn44-00448b or bn98-03094b board. | Ferrarini |
| SAMSUNG |
LN32A450C1
|
Loses image after a few seconds leaving only the sound | Lamps turn off after a while due to protection being armed | Put a 10k resistor from pin 15 to the ground of the oz9966sn on the inverter board! | Lucas |
| LG |
50PB650B
EAX65297201(2.1) |
TV turns on with audio and no image | Damaged ysus board | Q554E replace and run for the hug | JORGE ASSISTÊNCIA TÉCNICA COTIA SP |
| PHILCO |
PH39N91DSGWA LED
|
Faulty LED backlight | After replacing the backlight LEDs with new ones, perform the following replacement: | Remove rw821 (1.5Ω) from the circuit and only leave rw819 and rw820 | leitemarcellus |
| SEMP TOSHIBA |
1450
U17 |
Vertical closed | Q422 voltages low, resistor r885 open. | Replace with a 1Ω resistor for 2w. | Tiago C. Neves |
| SONY |
KLD-46Z410
|
Turns on std by, but then turns it off, a loud beep at the power supply. | In the power supply it has 3 trimpot, in my case the defective one was a 22k changed in the power supply | I immediately replaced all the trimpots, placed SMD resistors under the power supply board, it was great. | Alex Lopes |
| LG |
42LC4R
EAX37617801 |
Backlight does not come on, with sound without image | Replace ci u701 | When measuring ci pin 4 and 5 it was shorting | Maike Eletronica Sorriso |
| LG |
42LD
|
Power changes from red to blue but does not turn on, | Reflow "on a whim" | Rodrigo cofferi | |
| LG |
CM9730
|
Exits don't work. without power supply +40 and -40 . | 4 | Check c934 27n1000v exhausted ; After the replacement, the power supply to the outputs is restored. | Jocimar Pedro |