Repair Tips
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Results: 88091
Results: 88091
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| SAMSUMG |
32FH4205
|
Standby blinking and won't turn on | C 1125 shorted | Replace | Eletrônica Mauro Mascarenha - Parazinho Ceara - Tel : (88)981422821 |
| PHILIPS |
32PFL3404/78
|
Intermittent defect: interference in the image and sometimes a loud whistle from the speakers and turns off. | Leakage of metal capacitors, mainly 100uf, 10uf and 4.7uf. Another cause of this defect is the 27 MHz crystal, position on the board is x4. So, for those who have already done the old tip of washing the board and changing capacitors and it didn't work, look for the x4 crystal. | Replace the position crystal in the 27mhz x4 chassis, close to the processor. | IntelectoDigital |
| AOC |
LE58D1441
|
Does not turn on (led off) | Shorted diode d9305 - model sr510 (schottky rectifier 5a 100v) | Diode replacement - model sr510 (schottky rectifier 5a 100v) | Cassio Siquara |
| LG |
52LG50FD
|
Hdmi no signal or invalid format | Bad solder/reflow needed | Plate placed in an oven at 190 degrees for 10 minutes, it started working again. | Cassio Siquara |
| PHILCO |
PH28S63D
|
No image. audio only. | Cold solder on the inverter and bad contact on the con3 connector (back light). | To avoid return, I replaced the current of the LED bars. I placed another resistor in series with r119 (2r2 + 1r). the 129v voltage dropped to 125v, and the bus current was 124ma and dropped to 89ma. | Eletrônica R-Tec |
| PANASONIC |
TC-40C400B
|
Burning leds | Change the LED bar after one to two days and it burns out again. | Reginaldo | |
| CCE |
HPS 2171
|
With image only on the av | R104 and r103 smd of 100r on sda pins, and varicap scl | MARCONES DE ARARIPINA-PE | |
| LG |
32LF550B
LB55H |
No image. audio only. | All back light LEDs shorted. After the replace, they all shorted out again. That's why I noticed the inverter with the q803 shorted out (stay tuned). | I replaced the back light again, replaced the power supply (I had one in stock) and lowered the LED current. To avoid return, I replaced the current of the LED bars. I placed another resistor in series with r816 (2r4 + 1r). the voltage 103.8v dropped to 101.2v, and the bus current was 101ma and dropped to 68ma. | Eletrônica R-Tec |
| PHILIPS |
40PFL3605D/78
|
12v voltageless power supply only with 3.3v voltage | U110 (regulator as431) with leak. does not allow the 14v supply from pin 6 of the driver (u501) to pass | Replace the u110 (regulator as431) even if it appears to be good in multimeter tests. | Gênios Eletrônica - São José -SC |
| SONY |
KDL 32R435A
|
Turns on and then flashes 5x | Backlight defect, in this case it was a 10micro SMD cap, shorted in the LED power supply. | JOAOMVJR | |
| PHILCO |
PH32F33DG
|
Turns on and then turns off | Voltages ok boards ok, defect in an LED or one of the buses | I disconnected the red LED wire from the board connector and the TV turned on normally, strange but it worked | |
| PHILCO |
PH32F33DG
|
Turns it on, philco appears and turns it off | Tested power supply was ok, all voltages, leds ok, no visible damage to the boards | Side buttons corroded with rust along with the button plate. just replace the board or rebuild it with new buttons | |
| GRADIENTE |
S126
MODEL 1260 |
Negative voltage coming out at the speaker output, approximately -7v, hoarse audio | Broken trail in the "blessed" ca3080 | Always check for broken tracks on these receivers, resolder them, clean them, give them a bath with rosin to protect the PCI. Fits all gradient receivers (s95/105/125/96/106/126) | Trendset |
| GRADIENTE |
S126
MODEL 1260 |
Radio does not light up the FM stereo LED | Defect in IC1 of the radio board, CA1310E, FM stage stereo decoder. | Replace, adjust the trimpot and run for the hug, it works for all gradient receivers. | Trendset |
| GRADIENTE |
S126
MODEL 1260 |
Voltage coming out of the output, when resetting the treble potentiometer, only on one channel | After racking my brains, changing all the bcs, bds, I decided to disassemble the panel and look at the potentiometer up close, it had already been adapted, and the wires used in the adaptation were closing with the device's housing, causing feedback at the output. | Remove the excess wires, check if tsound is a terminal closing with the device's housing, and run for the hug, it works for all gradient receivers and amplifiers. | Trendset |
| STI |
LE4050
|
Shutting down restarting | Short central power button | After testing the LEDs, power supply and main, the flat power cable was removed after turning it on, and the defect was resolved, the equipment was connected for 12 hours straight without restarting or changing the controls. changing the power button to another one. | eletronica trovarelli bauru sp 14 32411123 |
| PHILCO |
PCM1446
|
LED blinking and won't turn on | C722 dry 470uf/16v | C722 dry 470μF/16v | MARCONES DE ARARIPINA-PE |
| SONY |
KLV-32L400A KLV-37M400A
|
TV turns on and then turns off, LED flashes 4 times | Capacitor c 4084 open, and also fuse f 4050 | All of this is on the main board, cmd capacitor on the bottom of the board and fuse on the top next to the t-com cable | Saltech |
| SEMP |
TV2134(C)SL
SK!! |
Tv sem as no rf e no av | Q402 (1815) responsible for mute. | Just remove the transistor and run for the hug. | David jr. |
| SEMP TOSHIBA |
DL3975 (A)
|
Turning off after 15 minutes | Replace u9 al1117-3,3v cp10 100mf 16v | Replace without measuring run hug | Luiz Macário |