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TV Repair: Common Faults and Solutions.


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Repair Guide: Common Issues and Fixes

Brand Model Fault Detailed Problem Solution By
BLUESKYBLK-4421
Retrace lines and screen flashing22r resistor that feeds the 180v line of the kinescope cathodesReplace for another equal 1w of power and resistance of 22Ω.Lucas
LG47LA6204
TV with backlight on, has sound, but no imageOn the left flat below the t-con, you have to isolate with tape about three lines that are between the 7th and 15th lines from right to left.Krause
LG29FS4RL
Cup effectIc302Rei Leão
CCEM-20T
Doesn't startDefect in viper12a pwm power supplyI made an adaptation using a 12v 2a power supply and it worked without problems, I adapted the power supply to the product and everything was normal, lolAdilson
SEMPDL3975
It has a green LED and it doesn't work +b12v oscillatingCauses faulty dp9 diodeKlein
ELSYSETRS29
Inoperative display offBurned with lightningIn U100 AUTIR05T-8 and R121 of 1R<small>GSAELETRONICA & INFORMATICA GRANJA CALIFORNIA</small>
LG42LW4500
Power supply capacitors explodeDiode d603 in PCF circuit shortedReplace d603 (byv29fx-600) and capacitorsjose almeida tavares
PHILIPS21PT5402
TE3.2E		Very low soundC486 470mf16v shorted, is in front of ic 403 tda7057Replace c486 470mf16vPAULO COSTA
SAMSUNGBN44-00081A
SMPS		Smps power supply failure. capacitor failureC441, c442(1000µ/10v); c661, c662, c665 (470µ/25v); c17(220µ/25v)Pablo
SAMSUNGBN44-00082A BN44-00092A BN44-00110A
SMPS		Smps power supply failure. capacitor failureC551, c522(1000µ/10v), c661, c662, c665 (470µ/25v)Pablo
SAMSUNGBN44-00082B
SMPS		Smps power supply failure. capacitor failureC442 (470µ/25v), c441(1000µ/10v), c661, c662 (470µ/25v)Pablo
SAMSUNGBN44-00124A BN44-00124C
SMPS		Smps power supply failure. capacitor failureC113 (330µ 20% 105ºc), c109, c110(1000µ 20% 10v), c111, c112 (820µ/10v 105ºc)Pablo
SAMSUNGBN44-00124A
SMPS		Smps power supply failure. capacitor failureC113 (330µ 20% 105ºc), c109, c110(1000µ 20% 10v), c111, c112 (820µ/10v 105ºc)Pablo
SAMSUNGBN44-00164A
SMPS		Smps power supply failure. capacitor failureC113 (470µ 20% 105ºc), c109, c110(1000µ 20% 10v), c111 (330µ/10v 105ºc)Pablo
SAMSUNGBN44-00122A
SMPS		Smps power supply failure. capacitor failureC113 (820µf/25v 105ºc), c115(1000µ 20% 10v), c117 (330µ/10v 105ºc), c212 (330µ/25v 20%)Pablo
SAMSUNGBN44-00164C
SMPS		Smps power supply failure. capacitor failureC113 (820µf/25v 105ºc), c109, c110(1000µ 20% 10v), c111 (330µ/10v 105ºc)Pablo
SAMSUNGBN44-00115A
SMPS		Smps power supply failure. capacitor failureC113, c112 (820µf/25v 105ºc), c111, c110(1000µ 20% 10v), c118 (330µ/10v 105ºc)Pablo
SAMSUNGBN44-00116A BN44-00116B
SMPS		Smps power supply failure. capacitor failureC111, c112 (820µf/25v 105ºc), c109, c110(1000µ 20% 10v), c113 (330µ/10v 105ºc) c117 (330µ/25v 20%)Pablo
SAMSUNGBN44-00089A
SMPS		Smps power supply failure. capacitor failureC111, c112 (820µf/25v 105ºc), c109, c110(1000µ 20% 10v), c113 (330µ/10v 105ºc)Pablo
SAMSUNGBN44-00098A
SMPS		Smps power supply failure. capacitor failureC111, c112 (680µf/25v 20% 105ºc), c113, c114(1000µ 20% 10v), c115 (330µ/10v 105ºc)Pablo