TV Repair: Common Faults and Solutions.
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Results: 87616
Results: 87616
Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| SAMSUNG | 40F5500 BN44-00645 | power supplyS OF 12, 24 AND INVERTER ZERO | ZDS803 WITH LEAK, Tsound MUST BE 15 V AT THE KATODO | ZDS803 (BC SMD TYPE)15V LEAKAGE PLACES A COMMON 15V | ELETRONICA BRAMBILA |
| PHILIPS | 48PFG5509 | No picture but backlight on | Replacement of C715 with short on Tcon board | BHTECHCENTER | |
| FRAHM | MP2000 | no sound comes out | U401 | Logan | |
| SAMSUNG | 510N | turn on and off lamp | just to correct the tip I gave before, the diode cathode goes on pins *10 and *9 of the sem2004 ci | Pedro Igor | |
| SAMSUNG | 510N | Flash lamp and turn off | usually 1 of the 2 lamps is burnt out, if you can't replace the lamp I will teach you how to turn off the protection of the ci sem2004, it works normally with almost no replace in lighting | Place a 330r resistor on pin 1, a 2k2 resistor on pin 14 and a 1n4148 diode with the cathode connected to pins 10 and 11, then join the 2 remaining ends of the 2 resistors to the diode anode | Pedro Igor |
| FRAHM | MF470 | bad sound defect, poor sound quality | ic tda2030 | I replaced it in 2030 and it was fine again | Agostinho eletrônica |
| SONY | KDL40BX425 | It turns on normally and after an indeterminate amount of time the screen starts flashing and restarts over and over again. | Does not show any signal on the LEDs. | Fabianosfj | |
| AMVOX | ACA 1005 TITAN | 24 volt power supply oscillating. Defect R 14 22r open | Panel doesn't work | Swap and run for the hug | Edson |
| TCL | 43S615 | Turns on without picture, LVDS 12V fuse is ok. | Short on display. | Release one of the flat cables to find out which side is defective, identifying which side. Remove the resistors in the vgh and ckv line. The perfect picture will return. | JC Eletrônica Cícero |
| PANASONIC | TC-40D400B | ON AND OFF (RED LED FLASHES) | BACKLIGHT MOSFETS GETTING VERY HOT, ONE OF THE BARS WAS AT 60V, THE OTHERS AT 48V. THEY SHOULD BE 48V. replace THE LED BARS RETURNED TO 48V AT THE OUTPUT WHICH WAS 60V AND STOPPED THE MOSFETS TO BE WARNED. | REPLACING THE LED BARS | LEO DA MEGA |
| PHILIPS | TBM-C830 | cd only plays the first 5 tracks | cd rotating motor tray | After replace the optical unit, it was necessary to lower the CD rotation motor tray a few millimeters, if you lower it too much the CD could scrape, I placed an old credit card between the motor and the tray and pressed it down. | jorgetec |
| PHILCO | PCX3500 | sound peaking at minimum volume | remove smd capacitor from pin 5 of the output ci | remove smd capacitor from pin 5 of the output ci | philipe |
| PANASONIC | TC-32FS500B | No picture | Burnt out LED (1 LED) | After replace the LED bars, reduce the current on the IC drive's ISET pin. With the original circuit, if the voltage is above 60V, replace the ISET resistor, put double the value, then check the current/voltage if it is within acceptable standards. | Cesar762 |
| SONY | GTX888 | the display does not light up | it was working and stopped | ||
| PHILCO | PH28C20D LED 099283003 A | WHEN YOU replace THE LEDS, THE BACK LIGHT FLASHES AND TURN OFF | CHECK PIN 7 PROT OF OB3350. | R151 330K MEASURING +-50K DUE TO THE GLUE AT THE BOTTOM! | ELETRONICA BRAMBILA |
| PHILCO | TV PH21M SS GAME PH21M SS | turns on, turns off, standby protection | New TV, I took it out of the box, it works for 2 minutes and turns off, I only discovered the defect when I removed the jump from the b+ flaybak, it turned on, then I tested the voltage, it was low | capacitors 330N and 15N TVs that use 220N and do not use the 15N test all in the flyback area | taylor |
| PHILCO | PTV43E60SN LED | Back light does not come on | Cold soldering | Ressold IC MP4010 (UB1) and its peripherals | Djalma Moreira |
| LG | HT305SU | Doesn't turn on | Zd960 and zd961 secondary Zener diode/6.2v | If voltage is less than 5.8v on these diodes, replace | Eletrônica Duarte |
| SONY | KDL40W605D | Flashing 6 times LED\\is good | Capacitor connected to pin 3 of the bdv9397 IC | Replace the 10 mf ceramic capacitor | Cabeça |
| AOC | LE39D3330 | No picture, B.L. on | No VGH, tsoundfore no picture. After cleaning the small flats at VCon, VGH and picture also appeared, however, with a lot of noise in the VCon's dc-dc circuit. Tsound was weird PWM on Lp2 and Lp1. Every now and then the VGH and PWM disappeared, as did the picture. | UP1 - CM501 replace. | Cesar762 |