Repair Tips
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Results: 88101
Results: 88101
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| RCA |
L37WD22 L37WD250 L42WD22 L42WD250 L46WD22 L46WD250
|
No analog channels, distorted or lost audio, digital channels still present. | On pcb main board, fuse 1c33 open. | Aaron | |
| LG |
32LP360
|
When plugging into the socket, the red LED flashes twice and no longer lights up, only to light up again after removing it and putting it back into the socket. | Two LEDs on the bars burned out, causing the power supply to go into protection. | In this case I replaced all the LEDs on the bars, even the ones that were still working, in a technical case I don't just have the original LEDs, changing the bars for new ones also solves the problem. | Margutek.BVA |
| POSITRON |
SP6300AV
|
DVD screen does not open | Problem engine board | Replace the engine plate. | FRED FRIENDS OF TECH |
| SONY |
KLV-46V510A
|
No image, green LED on but no image or sound | Solda fria ic bga | Resoldagem no ic bga | VICTORINO |
| SEMP |
TV2134 B SL SK11
SK11 |
Tsound was no RF sound, only in the video | C718 of 10/16v | Replace the same 10/16v c718 | Rogério Tv |
| SAMSUNG |
LN32A330J1
|
Turns on has sound but without turning on the backlight | Inverter board with f1 open, f2 and f3 ok inverter board without power supply | I replaced f1 using a fuse taken from other inverter boards sound in the store | Robusto |
| PHILIPS |
20PT3331/78
|
Turns on and off with closed vertical, | See the voltage of the 33v that goes out to the varicap, in my case it was the broken track, the 33v arriving at the varicap, but it didn't go to the other side, | DJ PITUKA | |
| PANASONIC |
TC-32AS600B
|
TV doesn't turn on, or turns off by itself, or sometimes doesn't turn on and freezes. | Defect in the function keyboard PCI. pci is double sided, and the power button track was shorted to gnd. Loosen all components and test track impedance at x10. | Isolate the track close to the connector and close to the touch switch, and make a jumper with a very thin wire. | rafaelmoraes99 |
| SEMP TOSHIBA |
LC4245W
|
Enable Audio out output when using hdmi connection | Remove the smd resistors from positions r346 and r347. replace the 33k smd resistors in positions r214 and r217 with 330k smd resistors. add jumpers from the positive terminal of capacitors c211 and c212 to the Audio out connector terminal. <a href="https://www.electronica-pt.com/media/kunena/attachments/18432/boletim_tecnico_semp_toshiba.pdf" title= "enable Audio output lc4245w" >see details lc4245w</a> | Toshiba technical information | Paulo Russo |
| SEMP TOSHIBA |
LC3245W LC4245W
|
Noise in audio with low sound | 1) isolate the PCI from the chassis, removing the SMD jumpers that connect the PCI ground to the chassis ground. in the position of the m806 screw, next to the tuner tsound is no jumper, so isolate the fixing screw with the chassis by placing a paper or plastic washer on the top and another on the bottom. | Technical information always toshiba semp lc3245w lc4245w |
Paulo Russo |
| SONY |
LBT-N555AV
|
The front output didn't work, but the super woofer and surround rear worked | The ci stk4152, this output was open, because the 47x50v capacitor was changed, three times and it swelled, I changed the ci, and nothing, but the capacitor on that line didn't swell, and the relay didn't arm, so I downloaded the schematic and I saw that the driver transistor of this relay reads q1207 | I replaced the transistor q1207 c1841, nothing opened and the sound came back, cool | celso |
| SEMP |
DL3277
|
When plugging the AC cable into the socket, the TV turns on and the blue screen appears and then turns off and then just restarts. | Keyboard touch keys | Disconnect the keyboard cable from the touch keys and the TV will work normally. replace all the touch keys on the keyboard c+ c- v+ v- power key and just run for the hug. God be praised! | Sinailson furtado |
| PANASONIC |
TC-32AS600B
|
TV doesn't turn on, or turns off by itself, or sometimes doesn't turn on at all. | SMD touch key on the keyboard has poor functions, causing the TV to have intermittent defects. In my case it was the power key stuck closed, causing the TV to not turn on and remain frozen. | Changing bad touch keys. | rafaelmoraes99 |
| SEMP |
TV2134
|
When turning on the TV, the standby LED did not light up normally, the horizontal oscillator did not activate the relay. and tsound is a lack of 3v3 turns on the processor | C621=1000uf/16v fully shorted | Replace it with another and run to another | Antonio Carlos (Eletrônica Renascer) |
| SEMP |
TV2134
|
When turning on the TV, the standby LED did not light up normally, the horizontal oscillator did not activate the relay. and tsound is a lack of 3v3 turns on the processor | C621=1000uf/16v fully shorted | Replace it with another and run to another | |
| PHILCO |
TPF2121C
|
Turns on and off with a black screen, difficulty turning on. | Change booster capacitor c715 .68, next to the horizontal transistor. | DJ PITUKA | |
| PHILIPS |
40PFL5615D/78
|
Dead power supply | Diode d907 shorted. just change and celebrate the result | ELETRÔNICA CENTER | |
| PANASONIC |
TC-L42U30B
|
No image lamps light up | 12v was missing on the tcom | Ceramic smd short main board without position number but next to tcom a15 flat connector | iran alves dos santos |
| LG |
21FU4RL
|
Japan Fund A Nishida Horizon et al. | C414 eo c406 | Changing the 18j1600v c414 and the 18j630v c406 means placing a bu1508dx horizontally | Sinailson furtado |
| LG |
21FU4RL
|
Japan Fund A Nishida Horizon et al. | C4414 eo c406 | Changing the 18j1600v c414 and the 18j630v c406 means placing a bu1508dx horizontally | Sinailson furtado |