Repair Tips
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Results: 88081
Results: 88081
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| PHILIPS |
21GX1618/78
|
With retrace lines | R3469 open. 3.9r | MARCONES DE ARARIPINA-PE | |
| SEMP TCL |
L40D2900F
|
It has sound and no image! | Burning LED bus. solution: reduce the voltage that was 85v on the LEDs by removing the two resistors (0r) next to the LED bus connector, the voltage dropped to 73v. replace the LED bus with a new one. | evandoviana | |
| LG |
29MN33D-PS
|
Backlight flickering | At first you think it's a defective LED, in my case it was cold welding on the d1103 diode | Resoldar diodo d1103 | Gaera |
| SAMSUNG |
UN48J5200AG
|
After a few hours the image gets lines until the image disappears | Shorted t-con | The same was replaced | marcelo rosa |
| PHILIPS |
FWM663X
|
Display does not light up. | D14 open power supply | Ogeid | |
| SEMP |
DL3960AF
|
TV with red LED and flashing 3.3 volts varying | Replace ic u201 e d203 | REGINALDO JOSE DE LIMA | |
| LG |
50PN4500
|
No image, with some pixels on the screen | Ysus card, just change it and run to receive the money | Cabeça | |
| SEMP |
LE1474 A W
|
Does not come out of standby. | Change eprom memory. | ||
| PHILIPS |
32PW8422
L05UAA |
Image on component video with blurred colors and unstable HDMI or no image | Failure in the signal input of the HD video keyer on the Trident board | If the HDMI problem persists, replace the BA7657F switch ci | Wilson |
| PHILIPS |
32PW8422
L05UAA |
Image on component video with blurred colors and unstable HDMI or no image | Failure in the signal input of the HD video keyer on the Trident board | Remove the trident plate, remove the shields and replace the 6 capacitors (47μF 4v): 2273 to 2277. can be replaced with the 6.3v one as the dimensions are very close. | Wilson |
| PHILIPS |
32PFL5604
|
Turns on and then turns off, the LED flashes 3 times, sometimes it works for 5 minutes. | C474 4.7uf 16v high esr on main board close to ci u8 | Changing the capacitor, it could be a common electrolytic | GIBA |
| LG |
49UJ6565
|
Image shaking, reddish and with horizontal lines on the screen (and also a bluish background, LED defect) | Bluish defect, the bottom is LED, only with replacement. To solve the problem of horizontal lines and reddish image shaking, only by changing the main board, but I reduced it a lot, practically imperceptible, I put duct tape on the lines of the lvds connector on the screen, lighter blue connector, the one on the right, on the side of the main board, start by covering the lines from left to right, you can cover about 8 to 10 lines | Claudio Eckert | |
| AOC |
E2250SW
|
It doesn't turn on or the LED lights up. | Without 3.3vdc, replaced voltage regulator u404/u406 | Law | |
| SONY |
DZ-295
|
Does not turn on display off power supply ok and display too | Lack of voltage ever 3.3 =e3.3v | Look for the diode d503 it receives 4v and releases 3.3 I replaced it and the problem was resolved. | FLIPFLOP |
| SONY |
HCD-EX660Z
|
Goes into protection after a few seconds | Solution is to change the sound output IC | Replace the sound output, remove it from the power supply and you can hear the sound on the headphone input directly from the pre | |
| AOC |
LE32H158I
|
TV turns on and then turns off the backlight, sometimes right away, sometimes it takes about 5 minutes | Tsound is no defect on the board, the defect is an LED, but none burned out, but rather an LED consuming greater current, to be sure I disconnected part of the protection, I disconnected resistors 8555, 13, 12, 10, all 20Ω | Changing the bus for a new one, or leaving part of the protection turned off until the LEDs are replaced with new ones | Claudio Eckert |
| SAMSUNG |
CL29Z58MQ
|
TV with slight hiss. do not form and as if fly back defective. and horizontal heating (burned 1x) | Vertical. I took the TV off and it worked. I changed vertical. | ||
| PHILIPS |
29PT8457/78
|
Without stand by and voltages on the primary | Optoaclopador 7513 | Replace optocoupler 7513 and cold solders | MMD128 |
| PHILCO |
PH39N91DSGWA LED
|
Without LED backlight lighting | Replacing the LED backlight assembly | After changing the set, remove the rw821 (1.5Ω) from the circuit to reduce the current to the LEDs | leitemarcellus |
| TCL |
32S4900S
|
No image or blue screen with no characters | Capacitor c49 or c48 shorted in the open fuse and run to the hug | Replace or remove the c49 which works the same way | GLAYDYSOM |