TV Repair: Common Faults and Solutions.
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Results: 87578
Results: 87578
Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| ORBSAT | S2200 PLUS 2 | No channel, RF or AV input | Resolder the regulator 7805, u100 on the varicap side | DJ PITUKA | |
| CENTURY | BR2014 | Doesn't start | Doesn't start | 1n4004 diode shorted | marcos juazeiro Bahia |
| AOC | LE32D3330 | Turns on, lights up the screen and turns off the panel LEDs quickly. continues with sound. | Modified led bar | To avoid replacing the LED bars, in this case, I replaced the value of r8107 on the power supply board. Increase the value. Place a 2r2 resistor in series with r8107. total value 6r9. It worked normally for several days in testing, ok. | Ferrarini |
| LG | 32LK330 EAX61124203/2 | TV turns on the LED and it blinks, no image, no sound, LCD lamps don't light up | In my case, two MOSFETs K3868 Q707 and Q709 are shorted, opening the fuse F501 15A/250V in the inverter area on the power supply board | Replace the fuse and the two original k3868 mosfet, you have to put the original k3868 mosfet | Ricardo Montes |
| TOSHIBA | TV 2999KMS LEM7 | Very low sound on both channels | Electrolytic capacitors c 636 and c 637, both 47 microfarads at 25v, are defective. | Replace the two. | Francisco Oliveira |
| PHILCO | PH14B | Sometimes it turns on, sometimes it doesn't. the LED stays on. | Defective l752 coil. | marcones de Araripina Pe. | |
| PHILIPS | 20PT3336 | TV doesn't turn on LED off | 4k7 resistor 3581 | seu nem eletronica | |
| CINERAL | 21P CIN-0405 | Doesn't start | Photo coupler | Replace | davi.sls |
| PHILCO | PH21M SS | +b oscillating and LED blinking. | Q 802 2n5551 and 18v diode shorted. the zener diode that is in the position of r 816, 12v line. | After the replace everything was ok. | George Pontes |
| PHILIPS | 42PFL3604 | Power supply 3.3 varying between 2 and 2.8 | Diode d813 small leak | Replace diode d813 | sandro paulo mascarenha |
| PHILIPS | 23PHG4109/78 32PHG4109/78 32PFG4109/78 39PFG4109/78 40PFG4009/78 40PFG4109/78 40PFG4309/78 47PFG4109/78 50PFG4109/78 TPM14.1L LA | Does not turn on, the display does not light up, audio-related faults | Disconnect the ssb (main) from the power supply (cn9101 socket) connect the power supply to the mains and check if tsound is 12v power supply. | Check 12volt power supply, if available, insert 5volt external power supply, being positive on pins (1 and 2) and negative on any of the pins (5,6,7,8). Connect the power supply to the mains and check if the display LEDs light up, also check if the 12v power supply remains stable, in this case the power supply and display are working normally. | |
| AOC | D42H831 . | It turned on normally, the next day it turned on, tsound was no sound if it turned on and off again, the sound came back | The cause was the damn u602 regulator that fed the audio output with 3.3 volts g1084-33. | Replace u602 g1084-33 3.3 volt regulator let's help the professional people. | <small>This email address is being protected from spambots. You need JavaScript enabled to view it.</small> |
| SAMSUNG | UN40C5000AG | The LED turns on and turns off when turned on, but the screen does not light up. | Missing 12v and 160v in the power supply, zdm853 changed | Replace without measuring | Paulo |
| PHILIPS | 21PT9467 SK4.1L | Doesn't even turn on the LED | C-634 220mf/16 | MARCELIO DREISSIG | |
| SEMP TOSHIBA | TV2052 U19 | Vertical closed in the middle with horizontal warming fold. | Glue on d302 isolating the voltage from the vertical | Remove and solve | Marcondes Ohm eletrônica Jaicós PI |
| PHILIPS | 40PFG5509 78 | With a doubled and flickering image and bluish colors or with a screen lit without an image | Ci t-con defective sm4154 on screen v-con board | Replace and run for the hug | Eletronica HYK |
| LG | CM 4350 | Dead power supply | Burnt mosfet spa08n80c3 | Replace for the same one or the p6nk90zfp... more zd 912, zd902, c914,c905 | Junior da Eletrônica Alves V. Grande -MA. |
| LG | CM 4350 | Dead power supply | Burnt mosfet spa08n80c3 | Replace for the same one or the p6nk90zfp | Junior da Eletrônica Alves V. Grande -MA. |
| PHILCO | PH24M LCD | Triplicate image | Eeprom | Enter setup by typing menu 9735 then in config just replace the id and restart | beto2828 |
| PHILCO | TP2920 | +b bass and cushion effect | Defective q905 | Q905 e so replace | GERISOM |