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Results: 88238
Results: 88238
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| LG |
21FU4RL
MC-059C |
The LED would light up, generate a high and turn off | After replacing several bad components, I tested the entire power supply, and finally I found transistor Q103 completely shorted, the transistor that feeds the varicap's 30volt line, I removed it, the TV remained the same | replaces the ic501, the TV was good thank GOD ----12/31/2024-----GOOD LUCK EVERYONE | Otacilio eletrônica G.G |
| PANASONIC |
L32U30B
|
TURN ON BACKLIGHT AND STANDBY BLINKING NON-STOP | CAPACITOR C7212 -120UF 450V | LOGANKLEITON | |
| SAMSUNG |
UN39FH5003G
|
TV turns on, backlight turns on and then turns off, won't turn on again. unplugging it after a while repeats the defect. | QM805 on power supply board - SMD NPN Transistor | Pardal-x | |
| AOC |
LE39D3330
|
No picture, client reported that sometimes disappeared and sometimes not | It arrived at the store with BL access, with all power supply voltages and 12v power supply for the screen, but VGH was missing | Solved with CI UP1 CM501 blower, after repair I also cleaned the flats. | Lucas |
| PHILIPS |
50PUG7406
|
Dead, no stand by. Arming the power supply, the voltages are all OK | Main board with 2 capacitors shorting out next to a 4r7 coil close to the CN701 connector | Remove and check if the short has disappeared, then replace them. SMD Capacitors C4328 and C4322 | World TV - Sorocaba |
| SEMP |
LC3246WDA
|
Turns on normally, lamp on without picture | Short on the tcon board, open fuse, 12v line, I injected 3v into the line, and an overheating SMD capacitor appeared, I tested it and it was the cause, TV working normally. | Remove the shorted SMD capacitor on the TCON board, inject regulated voltage and check self consumption. | SOS eletrônica |
| SAMSUNG |
LT24/27C310LB
|
The LEDs don't light up | TV arrived with sound and no picture, I immediately imagined it was the LEDs! I opened the display and the LEDs were 100%! Tsound was no voltage to power the LEDs! Voltage arrived at the SLC5013R ci (ic1701_ad) responsible for the voltage of the LEDs. | Replacing the SLC5013R ci | Rafael Sena |
| SAMSUNG |
UN40EH6030G
|
It doesn't turn on, and when it does, it turns off right away. | Transistor do POWER ON. | To test if the regulators are good, just release the Power On wire from the harness and see if the regulators on the board are working, if everything is working, without the power on connected the TV has to turn on, if it turns on and works perfectly, You have to analyze if it is not the Power On command transistor, tsound is one on the power supply and tsound is one on the main one, in my case, it was the bad main one, it is in position Q203, between the HDMI and the Optical Audio, just replace it and receive the Pix. | Eletrônica ATM |
| PANASONIC |
SC UA7
|
F61 when turning on the device | It doesn't turn on, it only stays on the display f61 | Claudemir Dias pestana | |
| PHILCO |
PTV50N10
|
THE PHILCO LOGO APPEARS AND ADD THE picture | CAPACITORS DEPLETED AT THE power supply 22uf / 250v | ANTONIO BATISTA - MAX SOM ELETRÔNICA - BH | |
| MONDIAL |
SK-06
|
Inoperative, does not turn on or charge battery | Switched power supply with defective Ci switcher. | As the original power supply is very weak, it was replaced for another more robust power supply of 1.5a at 12v, the ideal would be a 2.0a, but I didn't have it available, after replace the power supply, it started to work, but it did not recharge the battery, it was analyzed on the device's main board that the resistor R28 next to the Input Diode was open, it is a 10R SMD diode, which gives a sample of the input voltage to the Ci which recharges the batteries, after replace the resistor it recharged normally. | Eletrônica ATM |
| SAMSUNG |
LN32C530
|
Does not turn on - st-by off | Voltage enters regulator IC205 and tsound is no v-out, capacitor c268 is shorted. | replace.. | Maurilio |
| PANASONIC |
SA-AKX700
|
Sound does not turn on | TPS54240 and diode Code 36M9B I put the SS36 diode in its place | Resolved | Andre |
| PANASONIC |
SA-AKX700
|
Reduce power supply voltage at 40V output | To reduce the voltage of the Panasonic sound power supply so it doesn't burn out TPS54240 Regulator, First place a 4k7 resistor pin 5v connected to pin 12 PCONT of the power supply, I just soldered it, I turned on the test power supply it was giving 38.4 V output, I reduced it near IC1701 pin 1 to 4 resistors in series 182 = 1K8 / 0 ohm /333=33k /0 ohm, I just replace 1k8 for 15k and 33k 10k, I did the procedure and turned on the power supply, voltage dropped to 32.1V. | It doesn't go beyond the TPS54240, sound working normally | Andre |
| LG |
28MT49VF-PZ
|
Turns on stand by LED but doesn't do anything else, doesn't even blink | Ic404 ams1117 adj | Rdxk | |
| SAMSUNG |
UN32F4200
bn44-00604a |
replace LEDs reducing LED current | bad ledsa remove the 3.6r 2w r9110 and replace it with an 8.2r 3w one | replacing the resistor to reduce the LED current and increase the last life | orlando lott |
| TOSHIBA |
32L1500
|
Does not turn on, the standby LED does not light up | replace the IC that provides 5v standby N802 (FR9889) | ANTENA VIDEO | |
| JVC |
HR-J401M
|
does not turn on completely inoperative | leaking power supply capacitors. | replace all the electrolytic capacitors on the power supply, clean the area with alcohol as oil leaked from some capacitors, then replace the belts and clean the heads. | Marcio eletronica |
| SAMSUNG |
UN46F5200
|
CURRENT REDUCTION LEDS | remove smd resistors r9109 and r9210 | reginaldo moronte,eletronica junior caldas novas | |
| SAMSUNG |
UN40H4200AG
|
Does not turn on, standby LED flashes 6x backlight off | Q211 3.3v regulator had 2.2v at the output | MACIOTI |