Repair Tips
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Results: 87707
Results: 87707
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| CCE |
STILE D4201
|
Erasing BL quickly when turning on | Inverter Mosfets Driver | I replaced all sot23 SMDs between the SG2535 and the driver trafinho | Davi.sls |
| SEMP |
DL3277I
|
After replace the LED\\d, the TV appears and turns off the LED\\s, turning it back on | In my case I restored factory conditions sound and | In some cases you may need to buy the software and update the TV, in my case I just restored it and it was fine | Cabeça |
| SEMP TOSHIBA |
LEM9
Lem9 |
Only in standby does not turn on | After researching a lot, I found the 9v d431 with leakage. The 9v supply was low. | D 431 zener de yazh | Lopes tv |
| LG |
CJ87
|
Connect the power supply board without the main board | In the cn901 connector, short-circuit AMP_CTRL and PFC_CTRL and from tsound solder 2 resistors, one of 470r that goes to GND and another of 330r that goes to the 5.1 volts of stand-by, after maintenance everything returns to normal. | dudutekk | |
| LG |
CJ87
|
turns on, but no sound | Zener diode zd908 (22 volts) and zd907 (16 volts) shorted, transistor q955 (2sc5344) shorted, you can use BC337 instead, but respecting the differences in the terminals and smd resistors r9A5 and r946, both 10r open. | dudutekk | |
| SAMSUNG |
LN37C530F1M
|
turning off when programming channels | software problem | Even after updating, the defect persists. You can try going to the option function (service mode) in DDR leaving it at two and in Sub optiom in the support function lna leaving it at 0 | Marcos Paulo Infotron-ltda |
| BRITâNIA |
BS77
|
Low sound on 2 channels | booststrap capacitors on pins 6 and 11 of U2 KA2206 C133 and c134 of 100uf x 16 volts with low capacitance, measuring only 2.8 nf. | Inject a square wave into the capacitor and place it on channel 1 of the oscilloscope, then place the negative tip of the oscilloscope on the negative of the capacitor and the positive of the oscilloscope on the positive of the capacitor along with the square wave signal, if tsound is any remnant of the waveform the capacitor is bad, in this case the 2 capacitors c133 3 c134 were bad, causing the radio to lose output gain | Fernando Alcantra |
| SAMSUNG |
PN43H4000
|
picture, blurred, negative, drizzle vs normal voltages, va and vsc | Q 5010 (sun 0550) with leakage plate and its | replace | Hndrsn |
| PHILCO |
PH40U21DSGW
|
Does not turn on LED or does not turn on | short or open components in the LED sector | Replace QB1, QB2, DB1, DB2, RB4, RB5, RB6, RB7, RB8, RB1, RB2, RB10 and U811 Most shorted or open components U811 must be replaced. | JohnTech |
| LG |
32LD460 42LD460 32LD420 42LD420
|
White picture, icons appear, but white. | Defect in the C.I regulator next to the flat connector, does not drain the c.i. | If different from 1.8, find the C.I IC601 | ArnolTec |
| LG |
50PN4500 50PH4700
|
Burning Ysus | Capacitors SMD and Ysus C415, C416, C417, C418 | Remove these capacitors | GABSENS |
| SEMP |
LC4241W
|
Without picture but with audio, then on the bench a technician began... | replaced all 22UF x 50v electrolytic capacitors from the Epcon brand (if you see more of this brand, replace them too), on the power supply board, and replaced the Ci oz9966sn and 690uf capacitors on the inverter board | AlanCocteau | |
| PHILCO |
PH42F10DSGWAC
|
Dead | led stand does not light | replace : CW8 150X450, QW1 70R600, LW6, RW7 0R22, RW12 75R,QW2,RW5 360R, RW 1K ,RW 22R, CW2 CI | Dc. Ezequias |
| CSR |
3000
|
Box working with normal sound but the volume does not exceed 50 percent | TL082 CP 8-pin preamplifier IC normally comes shaved | Check the 15 volt voltage on the Zener if it is below 15 volts, replace the TL 082CP | ELETROSIDERAL |
| PHILCO |
PH32E63D
|
does not come out of standby | corrupted memory data. | rewrite memory. | eletronica cachoeira |
| TCL |
32S615
|
LED current reduction | Removing AR609 3R3 reduces current from 90mA/295mA to 60mA/175mA | Remover resistor AR609 3R3 | Ederlin |
| PHILIPS |
43PFG5813
|
No picture with screen \\\"washed\\\", LEDs on | With the right side viewed from behind, eliminate 8 trails on the left side of the flat | ToniTec | |
| MULTILASER PULSE |
SP700
|
When turned on, it turns off or stays on for a short time and returns to stand by. | ZD903 leaking | The test is done by monitoring the 30V of the power supply, which in this case was oscillating between 25v and 30v | mfelipe |
| SAMSUNG |
UN50MU6100G
|
TV turns on backlight but no picture comes out, tsound is audio. | Medir Q210, enter 12.5v and you know 12.5v. | replace Q210 (4435) was inputting 12.7v but outputting 11.5v. The Q210 got very hot. It looked like an LCD defect. | Joaomvjr |
| SAMSUNG |
UN50TU7020
CY-BT050HGPV1G |
doesn't start | MAIN BOARD DOES NOT TURN ON SUPPLY OK | JOÃO GAIA |