Repair Tips
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Results: 87993
Results: 87993
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| TCL |
65P8M
|
New LED kit, but it doesn't light up. | power supply, C620 polyester capacitor open or with broken solder. | replace the 273J Capacitor C620 | Eletronica SV - Guaira PR |
| LG |
32LS3400
EAX6456502 |
FLASHING STANDBY | FOTOACOPLADOR | power supply BOARD PHOTOCOUPLER IC502 AND IC503 BOTH EL817 | RIC TEC 1193096-7971 |
| TOSHIBA |
1022
|
VERTICAL CLOSED. LINE IN THE CENTER. | CAPACITOR 2.2/50UF WITH LEAKAGE | REPLACE CAPACITOR C303. | BICHARA |
| PHILIPS |
32PFL3404/78
|
When turned on, Standby locked | Broken trail at + do c474 | Remove the capacitor and jump from C340 to D1 up to the 3rd dot of the transistor u36 on the side that is not tsound next to C474 itself and solder a new C to make the job look good. | Wilson |
| ELECTROLUX |
ME46X ME47X
|
Faulty membrane | Defective display, just replace it, if you can't find the display to buy, place a 4148 diode, release pin 5 from the display and place the cathode, pin 5 and the anode on the track | If yours doesn't work, find out which pin is faulty, just loosen pin by pin. | Andre Rodrigues |
| PHILIPS |
42PFL3403 42PFL5403 42PFL6403
|
Nothing turned on or stand by | visually: U101 (FSQ510) cracked with 1 melted pin / C236 ( CAP 2200mf 25v ) Swollen / R101A Torn (120 ohn resistor next to the main fuse) - all were replaced and the problem persisted, I analyzed pin 5 of the FSQ and measured , I found the ZD103 zenner diode broken (SMD under the board), I replaced it and the LED then came back on but it didn't activate the relay, I replaced the relay and everything started working again | replacedo: C236 / U101 / R101A / ZD103 smd / Relé RE1 12v- 250v10a | Guedes Electronic |
| PHILCO |
PTV32G52S D
820.00282029 |
Normal league. After 5 to 10 minutes it turns off and restarts. | Main board. The processor heatsink is very small. | Romar | |
| 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 |