TV Repair: Common Faults and Solutions.
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Results: 87573
Results: 87573
Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| SAMSUNG | LT24B350LBMZD AY01 | Doesn't start. After repairing the power supply primary, the bus LEDs blinked and then | Short in strw6053s, cap221 1kv, dm851, icd801 map3204ac | TV monitor arrived with a messed up power supply and wouldn't turn on. detected IC strw6053s, polyester capacitor cap221 hole. | NIHONTECH MOGI |
| TOSHIBA STI | LA4050 A | Turns on with minutes turns off or has a green screen with no image | Cold solder on the ferrite coils and amplifier coil of the pci board | I realized that when pressing, it was normal and resoldering was done on the wire terminals and the same on the board. | Cristiano |
| PHILCO | PCM2044 2043 | Image full of drizzle | Trimpot r205 on the right side of the varicap | <small>GSAELETRONICA&INFORMATICA</small> GRANJA CALIFORNIA | |
| LG | 32LB9RTA | No audio, no sound | Hdmi ci shorting the 3.4v | 3.4v low, around 1.0v, beeping the capacitor tsound was a short, disconnecting the power supply board from the main board the short disappeared, we found 2 smd capacitors with a short on the back of the board, close to the plug that connects to the power supply , we put a voltage of 5v on them and the hdmi ci heated up, we removed the ci and the audio came out perfect. partial solution = remove the ci, however you will be without the hdmi function. total solution = replace the hdmi ci. | EC |
| LG | 29FX5R | R405 heating up, ticking and not turning on | Ic824, regulador 5volts | sandro | |
| SMS | UST700BIFX | When turned on, the LED flashes and then turns off | Q19 (bd139) shorted and d36 (zener 12v /1w) with leak | Replace of q19 and d36/q19 replaced by tip122 was better, less heating. | José Dias |
| PANASONIC | TC-14RM12L | Turns off | Remove r 1106 smd next to tr 603/604 next to the micro | <small>This email address is being protected from spambots. You need JavaScript enabled to view it. | |
| ELECTROLUX | MA30S | Inoperative...some keys do not respond...it is not a membrane. | Electrolux ma30s microwave, some buttons do not respond and it appears to be a membrane defect, but in fact it is a defect on the electronic board. To make sure that the membrane is perfect, I leave the diagram below for testing using a multimeter on the resistance scale. This membrane has 12 terminals, but only 11 are used, so for testing purposes (with the membrane vertically) I considered the top terminal as terminal 1 and the bottom terminal (not used) as terminal 12. To facilitate the test, it is better to remove the electronic board and test directly at its terminals, with the flat cable connected to it: terminals 1/5 defrost 1/6 popcorn 1/7 mug cake 1/8 safety lock 1/9 start + 30s 1/10 digit 3 1/11 digit 7 2/5 ground beef 2/8 heat meal 2/9 cancel/pause 2/10 digit 4 2/11 digit 8 3/5 inst pasta 3/6 brigadeiro 3/7 clock 3 /8 power/portions 3/9 digit 1 3/10 digit 5 3/11 digit 9 4/5 rice 4/7 steam accessory 4/9 digit 2 4/10 digit 6 4/11 digit 0 | littlecarlos | |
| SAMSUNG | MX-FS8000 | It turns on and indicates fan hg on the panel (fan problems) and then indicates bye and turns off. | Fan stuck or open. | Do not clean or recover, replace for a new one. | ALEX LOPES |
| SONY | KDL-46HX825 AZ2F | TV turns on and after a few seconds turns off and flashes 4x red LED | Remote sensor board | Replace | SANTOMEL |
| SAMSUNG | CL-21M21MQ K16A | More of the zero volt flyback | R-831de133k aberto | Replacement | lucinaldo |
| PHILCO | PH21 US A1 | No image, screen all stained with retraction lines | Saida vertical stv8172 | <small>GSAELETRONICA&INFORMATICA</small> GRANJA CALIFORNIA | |
| PHILCO | PH21 US A1 | Connects with a black line of a finger in the middle of the screen, with scratches on the bottom of the screen | 404 ceramic capacitor in front of the deflector coil socket, replace without measuring | <small>GSAELETRONICA&INFORMATICA</small> GRANJA CALIFORNIA | |
| SAMSUNG | LN40A330J1 | With sound and without image. backlight on but no image | Smd capacitor c12 shorted on tcon and fuse f1 open on the same. | I removed a fuse and a capacitor with the same size from a defective tcon in another corner and when I put them in the same one, it showed. | Romulo |
| PHILIPS | FWM998X/78 | Tsound are clicks at the rear speaker outputs. | Check inductors l2 l3 | samuel leite | |
| AOC | LE39D3540/20 | TV turns on, sound comes out, screen turns on but it is completely black with no image | Shorted capacitor on the v-com near the cable connector | Replace the capacitor | FILIPE FURTADO |
| SAMSUNG | UN46ES7000 SERIES | After a few minutes on, it displays vertical stripes across the screen and starts to restart in an (eternal loop) | Cable that goes from the power supply to the main board | This cable burns the first two pins on the end that goes to the main board. The solution is to clean the contacts well and invert the cable, i.e. the side that was on the main board to the power supply and vice versa... | eletronica jota |
| H-BUSTER | AB2800 CYT 150103 | Does not turn on, stays in stand bay | Power outage | 0 | Edson Santos |
| SEMP TOSHIBA | 40RV700FDA | It doesn't turn on, sometimes the LED flashes, sometimes it doesn't | Restoration of a track close to the power supply connector, a track that connects (via jumper) one of the anodes of the double db851 diode to the rm855 resistor. | Chumbão | |
| LG | 50PJ250 / 350 | Screen stains and drizzle | R426 (2r2) y-sus plate and cold weld no fusivel fs1 na z-sus plate | Tsoundfore a brigade | OZATEC ELETRONICA SARANDI/PR |