TV Repair: Common Faults and Solutions.
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Results: 87573
Results: 87573
Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| LG | 32LS3400 | When the power supply is cold it has 3.5v from standby if you unplug it the voltage disappears then you just have to wait a while for it to start working again | Q502 transistor smd ktn2222as | Mega Center | |
| LG | CM7420 | No sound comes out | The three resistors in series of 680k, 680k, 330k that feed the oscillator circuit of the 50 volt power supply | Edezio eletronica | |
| PHILIPS | 32PFL3018D/78 TPS10.1L LA | Inverted image | After changing the flash memory, the image is inverted | Enter the code via the remote control: 062598 + home + 034+ ok | leitemarcellus |
| LG | RP29CC90 | Horizontal deficiency lacks width | Change the coil l401 | eletrônica renovação Maranhão | |
| SEMP TOSHIBA | TV2999 | Turns on and off with vertical closed | Resistor r327 aberto | Just replace | Costa eletronica |
| ELECTROLUX | MG41R | When programming and trying to turn it on it restarts. (beeps back to zero) | Power supply without current, when trying to arm the relays it knocks down the 12v and 5v power supplys and the device restarts. | Coil l101 open, in the transformer primary. (2200μH) | mfelipe |
| TOSHIBA | TV2999KMS | Vertical closed with blue line and turning off, | Vertical short and capacitor 448 close to the connector that goes to the deflector | Kel Araújo assistência técnica M6 | |
| SAMSUNG | UN32J5200AG | Does not turn on standby LED off | Power supply goes into protection and does not power the main PCI | After analyzing the entire power supply I discovered the dm861c had a short and when replacing the power supply and TV it worked. | janilson |
| SEMP | DL 3277I(A) | Green LED flashing after a while on standby | Dp9 changed | Replace without measuring | Paulo-ps Eletronica |
| TOSHIBA | TV2999KMS | Vertical closed with blue line and turning off, | Vertical short and capacitor 448 close to the connector that goes to the deflector | Kel Araújo assistência técnica M6 | |
| SEMP | 1490 | Turns on the LED and turns off | After checking all the parts that gave this symptom such as the capacitors, c419, c884, c435, c810 and c878, the cause was the flay back replaced and resolved | ELETRONICA PUBLISOM DE NATAL RGN | |
| SONY | KDL-40NX705 | Turns on shortly after turns off and stand by LED flashes 6 times | 01 0.5 fuse open at the power supply, close to the back light power connector and 7 shorted bar LEDs. | I replaced the fuse and the LEDs, I couldn't find the bars, I only replaced the defective LEDs. | ALEX LOPES |
| CCE | HPS2991FS | The panel light takes a little while to flash, the light is not on continuously but flashes very weakly, b+ is very low and varies, q404 and q405 are broken, but I don't know if the customer shorted out these protection transistors or fpi because of the defect at the power supply. | The cause was the c816 470uf by 400v completely exhausted! | It was just a matter of changing it and the power supply returned to present the stable and correct voltage, the 2 protection transistors q404 and q405 were also replaced, which I don't know if the customer accidentally shorted these 2 transistors, because I think it's difficult for the power supply's main capacitor to be exhausted, cause these transistors to burn. | Fernando Elêtronica Millenium |
| SAMSUNG | LN32B450 | With sound without image | Thanks to my friend roberto reparas for the tip, to put an r=4.7 k between pins 16 of the ic without 2006 when inverting the socket, thanks dear, thanks | Thanks to my friend roberto reparas for the tip, to put an r=4.7 k between pins 16 of the ic without 2006 when inverting the socket, thanks dear, thanks | |
| AQUARIO | CA 40 | Passwords | 2668 3266 1234 | To reset | Eletronicaaeb |
| TOSHIBA | 2934 | Yellowish screen missing blue color | Zd204 diode in the rgb line | ezioeletro@hotmail | |
| LG | 21FU1RL | Vertical closed | All components in the vertical sector, deflector coil and vertical outlet were tested, but nothing was found. checking the micro pins does everything, and on pin 16, tsound is a capacitor c512 / 0.47 pf, this capacitor was open. | Capacitor replaced c512 / 0.47 pf | Carlos Alberto (ELETRÔNICA BATURITÉ) |
| LG | 21FU1RL | Vertical closed | All components in the vertical sector, deflector coil and vertical outlet were tested, but nothing was found. | Carlos Alberto (ELETRÔNICA BATURITÉ) | |
| SAMSUNG | PL42A450P1 | No image | Tsound was no vs voltage on the y-sus board and z-sus board, SMD capacitor (c2058) short circuited on the controller board, also blowing the fuse. | SMD capacitor (C2058) replacement or removal and fuse replacement. | Carlos Alberto (ELETRÔNICA BATURITÉ) |
| PHILCO | TP-1452N | Power supply does not arm, LED flashes (activating protection) | Fly-back damaged. uses ov2094/d1-c. but I used the ov2094/d1-a, although different, it works the same. | Replace the fly-back remembering to adjust the focus and screen potentiometers at least before turning it on for the first time. |