Search: lg
Results: 4961
Make Model Symptom Problem Solution By
LG 32LN540B
TV turns on, the LEDs turn on but tsound is no image Main board Capacitor c443 leak, reducing the voltage at l1101, which supplies the t with 12v tsound was only 8.2v. RNSPTEC
LG 32PC5RV
PLACA Y-SUS EAX43038301
Without 15v voltage Smd capacitor that is from pin 4 of ic 201(bd9763fmv) to gnd in short. this capacitor is on the y-sus board. This board generates 15v through the vs voltage. It uses this voltage and also sends it to the z-sus board. Without it tsound is no image. . As the capacitor was shorted, I didn't have its value. But the manμFacturer's datasheet recommends a 1 microfarad capacitor. I used a 1 micro/25 volt electrolytic capacitor. smd resistors and capacitors in addition to the tr201 and an smd diode JOSE CARLOS
LG 29LH300B
TV turns on, appears immediately and then turns off. When the TV is open, tsound is a noise from the LED power oscillator. This TV uses an LED bar on the side of the screen, a total of 32 LEDs wsound the circuit powers them, divided in half, 16 for each side. I did several tests on the board and didn't find a defect, and I could tell that it was being forced, I tested by adding another LED to each circuit, so it turned off even faster and the noise increased. So I removed an original LED on each side, leaving 30 LEDs in total, and the circuit started working normally again without the excess noise. Margutek.BVA
LG 32LF20FR
Receives normal on and off function, power supply voltages ok by connecting directly (I use a 1k resistor on the pwon at 5v, 12v appears then just touch 5v on the pwrdim and 24 appears), another way is to put a strong flashlight on the screen and keep pressing the menu, if you see it could be the same problem. I replaced 2 mosfets (tsound are 4) of the inverter, in my case short, fdd8447l Macro Eletrônica
LG 21FU4RL
Very weak signal Z102 X102 Edval
LG 32LB9RT
Does not turn on, stand by LED is off TV doesn't turn on or standby, 3.5 v power supply is only 1.5v...disconnect from the main cable, power supply went up to 3.5v, I went to the main to look for a short, I found some 4.7 caps with high ESR, I changed them and nothing, I injected 3.5 v x 500ma and I didn't notice high consumption, the main LEDs lit up, I concluded that the main one wasn't defective, I went back to the power supply and found c510 and c506 (47u x 25v) with high ESR and completely dry, they measured zero with an analog multimeter, I just had to change it (mine conclusion and that the power supply did not supply the main consumption) Replace Maurilio
LG 47LA6130
TV turns off by itself sometimes, sometimes turns off and on but doesn't go out Change power supply capacitors on the 3.5v line (stand by power supply), Replace capacitors (without measuring) c201 c202 470μF/25v and 1500μF/10v Tulio UBA
LG 42LC4R
No signal on hdmi inputs Capacitors with high esr. Replace cap. from the comp list: minimum voltage of capacitors 16~25v -- c547-4.7μF c516-10 c117-10 c120-10 c813-100 c824-47 c832-100 c318-10 c316-10 c311-10 evando viana
LG 21FJ8RL
CW81B
Normal connection with the vertical closed! C311 Replace the 2200μF25v c311 without measuring and the TV will work normally. God be praised! Sinailson furtado
LG 32/42LD460
Stuck on lg logo or turning off by itself Ar 1201 and ar1202 open, banks of resistors, located close to the processor. Measure them all and replace them for the same value Alex Lopes <small>This email address is being protected from spambots. You need JavaScript enabled to view it.</small>
LG 14SB1RB
Secondary power supply below 90v Photo-coupler fabiusmax
LG CJ87
Does not turn on or turns on from time to time X500 and x501 crystals. After heating it turns on... Replacing it... removing x501 from old cell phone cards, tsound are lots of them. x501 removed from tablet board, exactly 24mhz, they are a little bigger, but they fit perfectly... cricascell
LG 29FS4RL1
When turned off, the LED doesn't even light up and the fuse is burning. This TV was burned by lightning. Shorted rectifier bridge Mat cap25 ves40 every time you did good to your brother, you did it to me. said the king. <span class="xxsmall">ELETRONICA NOSSA SENHORA APARECIDA</span>
LG 50PK550
League, no image Reballing Replace the processor balls - autogen before Eletronica Jambeiro
LG 47LM6400
When turning on the TV tsound is sound but the image takes a long time to appear. When connecting the TV, the output of Q2407 (Mosfet for Chanel) does not show 12V (panel power supply). the gate voltage determined by the resistive mesh r2441, r2442 and q2406 was around 11v, that is, very close to 12v, with tsound not being enough vgs to drive the mosfet. It was observed that the gate voltage slowly decreased to a value around 8.5v, causing the MOSFET to conduct and the presence of 12V on its drain, resulting in the TV image. as q2406 is responsible for the voltage value in the gate loop, it was replaced. Replace q2406 (mmbt3904 manμFacturer nxp). Valmir
LG 14FK3RB
L2
No sound, turns on with normal image. Change or remove capacitor c912. C912 shorted. Jadson G Nascimento
LG DHL 625
Doesn't start (dead) Replacement of the diode in the secondary power supply d953 (sr306), diode was shorted MARCO FERRI
LG 32LX330C
Burning leds LED voltage changed Replace 2.7Ω r816 to 4.7 homs Raimundo Antônio-Acre
DVD LG DV361
Does not turn on, or takes a long time to turn on. C121 and d121 changed Swap c121 and d121 MARCONES DE ARARIPINA-PE
LG 42PQ30R LG
TV turns on, stays on for a while or days and turns off. Power supply capacitor in position 829 with broken solder. solution to solder the capacitor terminals. All Master Eletronica