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Repair Tips




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Results: 87715
Make Model Symptom Problem Solution By
SONY GRX9900 GRX800 GRX 9900 GRX 800
Does not turn on, after turning on panel appears frozen with no display indication R951,952 and 953 trafo board, d902 and 904 open, after returning the voltages, the defective ic502 was detected (without it the sound works) It may be necessary to remove q903 and q923 for it to act as a power on and validate the voltages. in the lamp in series, it can only light the LEDs simulating a failure in the panel and uc. HALISSON
SONY ADP-160CR
Stand-by and detect ok, but when activating the power supply, all tensions drop until everything is reset Zener diode with small leakage (zd39) Replace the same Deo Eletrônica (81)98904-0186
LG 42PB2RR
Stand-by LED on, but does not turn on, neither on the button nor on the cr. C-837 22uf x 16vdc smd replace is between ic900 and ic800 I was very happy because I was accurate with it, I hadn't found anything online about this defect. robusto SCINFO-RJ
SAMSUNG UN49KU6450
Backlight blinks once when turned on Defective backlight First check if the acrylic is in good condition, if so, replace the bus and increase r9139 from 1r to 4r7, in my case as it was not available I used 2x10r in parallel. ZENER Serviço Técnico
AOC ROKU 32S5195/78G
No sound... only sound appears on the side phone output. Change the ci (u105) esmt-22653b next to the usb input. evando viana
SAMSUNG UN40K5300
It turns on but the remote control or the TV controls don't work. I checked the sensor voltages and they were in order. Defect on the main board. to replace. SilvioSantosCTV
PANASONIC TC-L42U30B
Dead, nothing turns on, not even stand-by Several leaky diodes. no voltage. only 5v. Given the various problems, the best solution was to replace the power supply. SilvioSantosCTV
SAMSUNG UN55F6400AG
Standby on... when it turned on, the logo appeared and turned off....after some tests it just kept restarting.....I changed the main board to see the percystic symptom... I replaced the r802 component.. I removed the q854.... I resoldered the cable pins that go to the main board, the defect was remedied... Compatible cards (unxxf5500- 40inch 43inch, no need to invert image) TECSAT SAO LEOPOLDO
PHILCO PTV32G70SBL
Reduce LED current. Current before change 460ma. remove rb12 and rb13 (2.4r). They are located close to the LED connector. current after change 250ma (approximately 55%). Romar
SONY KDL-40BX425
Hangs and does not obey on off Change 3.3v regulator on the main board and 100/16 capacitor on its side+capacitor 470/25 5 volt power supply c989,u701,c719 reginaldo moronte,eletronica junior caldas novas
LG MONITOR FLATRON 23MP55HQ
Doesn't start Conversor stepdown 3v3 Apw7301, as I couldn't find it, I researched and discovered its equivalent, it's mp2307. equivalent replacement, replacement apw7301 Davi.sls
PHILCO PH600BT
No audio Position on board u5 5807m shorted Make the replace 5807m alexandrefelipe
PANASONIC SA-AKX880
Doesn't start. When you press power the cooler moves and stops. Diode shorted on main - d2107 shorted next to ic2101. put an sb320 in place Alessandro Barcelos
PHILCO TODOS
Update-related defects Check link: https://drivers.philco.com.br/tv Claudio Jorge Eckert Junior
PHILCO PH32B51DSGW
Only on standby, but does not turn on Source board measurements ok, regulator U3 on the main board (variable, but with 1.8v output) is faulty, output voltage oscillates between 1.5 and 1.8v Replace regulator u3 main board Claudio Jorge Eckert Junior
PANASSONIC 39A400B
TV turns on image appears turns off then restarts Short tok key keyboard Replace tok keys Claudio
PANASONIC TC-29KL04
Turning itself off in less than 2 minutes I noticed that the strw got very hot and went into protection, causing the power supply to stop, leaving the capacitor charged. I checked the entire power supply and when I removed the cooper, the ferrite was missing a piece at the bottom. I removed the ferrite from another scrap transformer and repaired hers, the strw reduced the temperature and the TV no longer turned off. Eliel Magno
PANASONIC TC-29KL04
Turning itself off in less than 2 minutes I noticed that the strw got very hot and went into protection, causing the power supply to stop, leaving the capacitor charged. I checked the entire power supply and when I removed the cooper, the ferrite was missing a piece at the bottom. I removed the ferrite from another scrap transformer and repaired hers, the strw reduced the temperature and the TV no longer turned off. Eliel Magno
PANASSONIC 39A400B
TV turns on image appears turns off then restarts Short tok key keyboard Replace tok keys system eletronica
BEHRINGER INUKE 6000
Lights up and then turns off, fans at low speed Verificar d29, d30 e d32 diodo schottky 1a 100v Matias