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Repair Tips




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Results: 88086
Make Model Symptom Problem Solution By
LG 32LN549C 32LN5400
The power supply works with a strong noise as if it were a flyback with the 12v voltage changed to 14.5 on the secondary which are: 3.5, 12, 24v Resistor smd r235.56k aberto e r239 10k aberto Replace the respective resistors and the voltage returns to normal. unfortunately the voltage replace caused by the power supply burned the board...I had to make the repair. ALVES.TEC ELETRONICA ESCADA PERNAMBUCO
SONY KDL-46EX650 KDL-52EX705 KDL-40EX705 KDL-46EX705
TV turns on and the Sony logo appears, but then turns off and the red LED flashes 6x Defect in the 0.5 SMD PS6800 fuse located on the power supply board, close to the LED sockets in the corner of the board Replace it, I replaced it with a common fusifel and it worked. Eletronica Muniz
AOC L32W831
When pressing the power key, the stand-by LED turns blue, but the back light does not light up. Poor contact (cold solder) on the on/off terminal, present in the socket that connects the power supply board with the inverter board. Wagner Jr
PHILCO PH24M LED A2
When plugged into the socket, it flashes stand by once and does not turn on Ic u4 Ic u4 RONALDO VIEIRA
SEMP TOSHIBA 40
Tsound is no 12v and 24v only 5v Nw901 Barter it M.zidane
LENOXX CA-311
It doesn't turn on, the LEDs kept blinking and it didn't even work on the battery Dz2 zener diode in front of tdah shorted I replaced it and it worked.
LG 32LN549C 32LN5400
The power supply works with a strong noise as if it were a flyback with the 12v voltage changed to 14.5 on the secondary which are 3.5,12,24v Resistor smd r235.56k aberto e r239 10k aberto Replace the respective resistors and the voltage returns to normal. unfortunately the voltage replace caused by the power supply burned the board...I had to make the repair. ALVES.TEC ELETRONICA ESCADA PERNAMBUCO
TCL 55P65US
Display screen rebooting Leds Replace 3 separate LEDs and a factory reset and good luck! Jhone eletronica
SONY CECH-4211A ADP-160AR
PS3 in stand-by, pressing the power button goes to green LED and then goes to red LED again. sometimes dies in black-out Defect in the power supply, without 12v, and when turned on, sometimes the 5v drops too. Power supply defect, without 12v. When opening the power supply, replace the dda001ag. it is located under the 12v transformer in position ic50 SV Eletrônica
PHILCO TP2920
It turns on standby, turns on the power button, it starts and then disarms, but the circuit remains partially connected. Change two polyester capacitors located on the board next to the main one. c1703 and c1701
SAMSUNG 21Z58
Retrace line and turning off Triggers protection R270 10k Joao Bosco Sorocaba
CONSUL CMA
Doesn't start at all Normal voltage but won't turn on Put r 10k in parallel with crystal Gam serviços Garanhuns
CCE HPS2971
Vertical with only half open 51 volt power supply changed Replace zd304 smd , no c.i. saida vertical eletronica fernandes
SONY KDL-40BX425
Does not show voltage 12-24 volts flashes twice. Leaky transistor q931 and faulty ic 902. eletrofepar
LG 42LB5600 EAX6569320
EAX6569320 		TV turns on but no picture All LEDs short, voltage and high currents around 215v. Replace all the LEDs and remove the SMD 817 and 817 resistors to lower the voltage and current Anderson Carlos Conceição de Oliveira
SHARP LC-22LE250 LC-24LE250 17MB95S
17MB95 		Staying in stand-by, no start Short in vcc Rui
SHARP LC-22LE250 LC-24LE250 17MB95S
17MB95 		No backlight, led is normal no picture Check/replace q10 and q11 Rui
SAMSUNG LT27A550
TV doesn't turn on, LED ST BY lights up and goes out. Insufficient voltage on the main board. Power supply board replace electrolytic capacitors, cm851 560μF x 10v cm855 and cm859 1000μF x 10v, all exhausted. RNSPTEC
LG 42LS5700
Turning on and off without stopping, standby blinking Oxidation on the touch control sensor, the board harness was crushed by the cover Clean or replace the sensor board and replace the path of the harness so that, when screwing the TV, the cover does not crush the harness WORLD TV - Sorocaba
DELL OPTIPLEX 780 SFF SMALL FORM FACTOR
3NVJ6 		Desktop computer does not display video, but makes 2 beeps (in the manual table this code lists RAM memory). obs. This PC makes 2 beeps for other errors also after the post, such as keyboard error, HDD not found, RAM quantity changed, etc. Possible bad contact in the memory and/or processor and/or motherboard, it could also be a bug in the bios, or cr2032 battery. Disassemble and assemble all connectors and sockets, power supply, sata, processor (2 screws, preferably use silver thermal paste), dvd and hdd (only have latches), also ram memory etc., to reduce poor contact. replace cr2032 battery (coin type), perform bios reset via jumper (rtcrst), also enter setup with f2 and activate the sata ports in use, and raid/ahci mode. obs. ran with ddr3 1333mhz, then tested with memtest86+ (use bootable version via usb stick and press f2 to activate more cores during tests). Also think about using SSD.