Repair Tips
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Results: 88017
Results: 88017
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| SAMSUNG |
UN32F4200AG
|
Flashing screen led | Everything indicated that it was an LED but it was the power supply board regulator | Ba751 close to j 815 | Tec Center |
| PHILCO |
PH39N91DSGWA LED
|
Inoperative, standby off. very low power supply output voltages | Cw926 4.7mf 100v at power supply. change without measuring. | Ferraz | |
| SAMSUNG |
CL21A551ML
KSCB |
Does not turn on, nor does the stand-by LED light up | Precision resistor r821b, altered or opened | Replace for the same (electronics brazil) | George/Eletrônica Brasil |
| SAMSUNG |
UN50RU7100G
|
Samsung tv un50ru7100g won't turn on, sby leds blinking 2 times | 3.3/1.8 regulator shorted | Jampea | Ronaldo |
| PHILCO |
PTV32E20DSGWA LED
|
It turns on, sometimes it doesn't turn on, if it turns on it immediately turns off, if it turns on it shows scratches or damage to the image. | 1.5v regulator position u0p1 next to the processor oscillating the output | Regulator replacement | Claudio Jorge Eckert Junior |
| LG |
43UK6520PSA
|
No image, defective screen | Friends, this 4k model doesn't work with that trick we do of turning off the flat on one side of the screen to find out which side is shorting the screen or shorting the vcon board. The most important thing is that these LG 4k models, when something goes wrong on the screen, the main board goes into protection and even shows a short circuit on the main board in capacitors near the connector that goes to the screen, usually the top connector and then you go crazy thinking that tsound is a short on the board, but in fact the short appears because the board went into protection and even continues to have a short circuit even when the power is disconnected. Another way for this short to appear is to do the test by removing one of the flats that goes to the screen, to try to find out which side is shorted, the main board goes into protection, then you go crazy, that's it, in addition to the screen, I caused a short on the board main. | In short, in my case it was a shorted cover (those 10μF smd ones) on the left side looking at the TV from the back, c1105 and after that I replaced it, the TV turned on and showed an image and I went tsound to measure the short on the main board and the short circuit was gone ...crazy, guys... the short on the main board was above the c9104 capacitor, close to the top connector that comes out and goes to the screen via flat cable... | MIGUELTV |
| PHILIPS |
14PT3131
|
When turned on, tsound is no image when turned off, the tube glows | 47 k resistor 3491, just change it and thank God | I replaced r3491 | Rogério TV |
| LG |
42LB5800
|
Lg tv appears soon but does not release image | Problem with the varicap channel tuner model ebl61400103, when observed tsound were some burst SMD capacitors, after removing the varicap from the board it showed the image again. | Probably lightning or electrical discharge passed through the antenna and damaged the component, the solution is to replace the varicap with another. | vitorricelli |
| PANASONIC |
TC-14A04P
|
On and off and the LED kept blinking | C403 electrolytic 50v 22uf I just changed it and it was sound. This tip is new since I had to figure it out without help because it wasn't available on the internet | Was replaced. never remove the protection if the voltage is above 140 volts | genilson oliveira |
| SEMP TOSHIBA |
2159OFS
U19 |
Blue screen, obscuring even the characters on the TV | Smd transistor q906 on the tube plate limiting the collector voltage of the q905 to 14v, when it should be around 120v | Removing the q906 the image returned to normal. | Tiago C. Neves |
| PHILCO |
PM31
|
When opening the door, the fan turns on, the plate rotates, but the display does not light up. | Defective lm7805 regulator | Replace the regulator that solves | Pedro |
| LG |
CM9740
|
Some USB keys 1 2 don't work | I changed all the touch keys, still the same problem, I went to the eepron service and some numbers were wrong, I removed data from another sound, the same model (op0-09 /op1-00 /op2-00 /op3-00 /op4- 00 /op5- 69 /op6 -81 /op7-45 /op8-10 /op9-00 ) if you replace the board with another version, change op0-05 and op9- 01 one audio output the other usb radio function key | I did this procedure and saved it in memory and the data resolved function all worked. | Andre |
| SEMP TOSHIBA |
DL4844(A)(F)
DL4844 |
On, it always turns off and the LED stays green, just by turning off the socket | I followed the tip mates, replace r766 5k1 with 10k and leave only 1 resistor on each drive output | vanderli | |
| LG |
42PN4500
|
It doesn't turn on just the LED is on | Ic600 3.3v regulator was only outputting 2.5v | Just replace the regulator and run for the hug | luiz videotek |
| AOC |
LE32D1452
|
Without image or between image and it becomes blurry. | Defect in the ruler of one of the v-com | C218 shorted on pci v-com on the right side. | eletronica cachoeira |
| TCL |
50P8M
|
Reduction of LED bus current | Change the 10k smd resistor r613 for another 330k resistor I put 470k this resistor is close to the IC | Paulo Alexandre | |
| SAMSUNG |
UN40F6400
|
TV turns on and off | Turn off protection, jamper 801 and measure voltage on the bus mosfets. tsound are 4, one pair is controlled by a ci slc 2013 and the other 2 mosfets by another slcc 2013. the mosfets are inoperative, replace the ci that controls them. | 2013 ci slc replace | Pronto Socorro do Lcd |
| PHILCO |
PH16V18
|
Turns on and then turns off, remaining on standby | Dl71(smd diode) place 1n4007 no place | HP ELETRONICA | |
| ELSYS |
DUOMAX
|
Detonated power supply, without specification of components | Burning of power supply components making it impossible to identify components. | No solution if you don't have a schematic. | Pasqual Spinelli Filho |
| SAMSUNG |
UN40J5300-5500
|
With sound, screen on and no video | Tcon bn98-05910a with 3a fuse open and ce1 (10nf smd) short | Replace fuse and capacitor | SANTOMEL |