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Repair Tips




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Results: 88058
Make Model Symptom Problem Solution By
SAMSUNG UN46F6100AG
Does not light LEDs, T con board, releasing the flat cable that connects the main board and t con, the LEDs light up T plate replace with Gabriel GXP
SONY KLV-32M400A
Does not turn on, LED flashes 3 times F4001 e ic4001 The fuse blew immediately and tsound was no short in any component. changing ic4001 solved it. André
PHILCO PH43U21DSGW
Doesn't start. struck by lightning. Board shorted on the 12volt line. tsound were tensions from several power supplys. on the dual p-channel mosfet me4953 -30v (u809), on the 5v line it was ok. however, on the 12v line (pins 1, 2, 7 and 8 were shorted. Ceramic capacitor c1000 was also shorted. Replaced and worked normally. R-Tec
SEMP DL3254
Backlight on without image C17, c18, c19, c20 all located on v with Replace the 4 shorted c17 smds and the others with leaks "replace all" Multimarcas/Acarí
SAMSUNG UN55KU6000G
It doesn't turn on or the standby LED lights up Faulty capacitance in the secondary power supply on the 13v line. when disconnected from the motherboard the LED bars lit up normally, when plugged into the motherboard the voltages disappeared remaining only 8.8v wsound it had to be 13v making it impossible to function Replace the 4 25v capacitors with 470μF in positions cm858, cm857, cm856 and cm855. then it will work normally again Francisco Melo eletrônica M.F
RECEPTOR CENTURY USR1900
With normal sound, and black and white or distorted image R126 3k9 change to 720r or 1k. MARCONES DE ARARIPINA-PE
CENTURY SHD7100
No signal, lnb with 13v, normal is 18v. Rp31 2w changed measuring 9k, on the 22v line. he's like a fuse, Replace with one of less than 10r. GDP2
SONY KDL-46NX700
No picture, no backlight F smd jl6020 na psu ERP-ASSIST
GRUNDIG 26-9940T VISION9
SU 		It takes a while to turn on, but when it does turn on it works normally. If we turn it off after a while and turn it on again, it turns on quickly Voltage regulator IC902 1.2V (MP2112) Replace integrated circuit Mário Santos
SONY 32U4000
It lights up a few times but, when it comes on, it goes out almost immediately, leaving the red LED flashing The problem is with the lamps. place a diode between pin 17 and ground of the bd9897fs ci, this procedure eliminates the integrated protection and makes it possible to check or, even with lamps with problems, it remains working Mário Santos
LG 42LV4500
Doesn't start Shoulder freezer and main Check next to l402 Mário Santos
PHILCO PH32F33DG
No image With the oscilloscope, notice the back light gives a pulse and disarms, change the changed LED and remove 033 resistors Warley cesar
TCL L40S4900FS
LED burning Power supply changed with extra voltage Remove resistor r341 12k and r314 24k (underneath pin 2 to ground) insert 1 of 15k JUNIOR PORTALTEC ELETRONICA CATALAO
SONY KV-M1440E
It starts to get dark after a while. it even stops having an image. Leaky d302 diode Swap .. equivalent 1n4148 Marco Marques
SONY KDL-32U2000
Image appears for a few seconds with sound and then the image fails and the sound is ok Failure of one of the lamps Alonso
TELEFUNKEN VESTEL 55DTU641 17MB130P
Has backlight but no image Problema na t-con c427 Replace with a 10µf one Marco Marques
SONY KDL-46W4500
Does not turn on, no voltage reaches the rectifier bridge Thermal fuse rwt05 6.8ω/142ºc open Replace for an identical r of 6.8ω and a thermal of 142º in series C. Santos
SAMSUNG LE40B620R3W
Doesn't start. power supply inoperative Shorted fuse due to MOSFET n 600v/5a I put a channel n 600v/9a and it worked well C. Santos
LG 42LE4500
Darker zone in various locations on the screen MOSFETs that control leaky LEDs Check fqt4n20l C. Santos
HITACHI 32LD9700 42LD9700
No sound Bad soldering on cristal x800 (hdmi board).