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 |
|---|---|---|---|---|---|
| SAMSUNG | PL43F4000AG | Doesn't start. LED lights up and flashes and does not turn on | Cold solder on the power supply board. | Resoldered the power supply board and the TV started working normally again | Duliz180 |
| AOC | L32W831 | Remains silent without sound | It turns on normally 5 minutes later it remains silent, if it turns off with the remote control when it turns on tsound is no audio | Absence of 3v3 voltage. u602 defective | EK Eletrônica |
| PHILIPS | 32PFL4007D/78 | The stand by light does not turn on and does not accept commands from the remote control, it only turns on with the power button | Software failure since in the measurements I noticed the receiver was acting | Software update | |
| HBUSTER | HBTV-32D05HD | Inoperative. stand-by LED on (blue). | Q14f open. (SMD on the power supply board) | Placed mosfet 2n7002 in place of the original. TV returned to normal. | Denys de Sene |
| SONY | PLAY STATION 4 | No video, white light | Ci hdmi | Replace ci do hdmi | Weslley (UNITEC) |
| SAMSUNG | PL50C450B1 | Greenish/negative image | Igbt na y-sus | Replace the faulty rjp30e2 on the y-sus. | Weslley (UNITEC) |
| LG | 42LM3400 | Has back light but no image | T-con board fuse, c209 or c210 shorted. check the 12volt da-con switching transistor is open on the main board. | ||
| SEMP | DL3244 (A )W | No image but with sound | In my case, all the LEDs burned out | I adapted LED bars from a 6V LG TV and to avoid burning again I replaced the current between the LEDs by removing two SMD resistors from the circuit, R758 and R759, both 4R7, they work in parallel, after removing them the current decreased between the LEDs and can increase their useful life, once this is done the TV will take longer to work. | PROTEC ELETRONICA |
| PHILIPS | 42PFL3403 | I'm sound | D6402 that takes power to the 8v regulator that powers the ci 7411 (back of the board) | HP ELETRONICA | |
| SAMSUNG | PL50C450B1 | Small image, black band on screen. | Resistors | On the main board near the power connector replace the resistor r491 to r490 or vice versa. | Weslley (UNITEC) |
| LG | CM4330 | Don't care, power supply ok! When activating the power, you will notice a slight blinking in the LEDs around the vol knob. | Ic701 burst. | Replace ic701, tas5612la. | BRITO |
| SEMP | 2134 (C) | It takes about 15 seconds for the sound to come | C636 (cap.elet. 1000uf x 25v) | Replace without measuring c636. sound returned to normal | Rdoantônio-Acre |
| HBUSTER | HBTV32L05HD | No audio | Remove q707 and q708 | TV after updating and recording the flash and then removing and replacing the ca 804 and ca 815 capacitors, the problem was not solved and the reset was done and it did not solve either, so the solution was to remove the transistors | Assistec som estância edu |
| SEMP TOSHIBA | 2015MM U17 | Turns on generates high and turns off completely | Flyback | Neno eletronica | |
| SEMP TOSHIBA STI | LE3256(A)W | Turns on without turning on the backlight and with normal sound | Defect in 2 diodes (sb2200) on the main board, in the upper right part, both shorted!! I changed them and found that only they were damaged. These are very low amperage and poor quality diodes! | EC | |
| SONY | MHC GT44 | Muddy sound on main output,normal on subwoofer output | -51v missing | Resitor 47Ω pino1stk 403 130 | |
| PHILIPS | 29PT9467 | Turns on and in a few seconds turns off | When you turn on the main key it arms the relay and goes into sby, keep pressing the channel keys without stopping so it doesn't turn off easily (most of the time it's the tube itself), speed up the screen on the flyback, if it hits the retrace lines the cushion effect, the defect may be in the horizontal width cap. | In my case it was the c438 cap of 2n7 ps. Always replace the 2 b+ caps on these TVs, thanks. | SYSTEM ELETRONICA |
| LG | 21FJ6RB | Doesn't start. LED off.2* from power supply without voltage | C-417 221k/2kv. q-402 c0693. e flayblack 6174v-6016a. | Just replace the ones mentioned. and go for the hug. | NILMAR (61)9.9818-3695 |
| SAMSUNG | CL21C650ML | Vertical closing at the bottom | D301 | D301 | Eletrônica Mauri Junior |
| SAMSUNG | PL51D451 | Image does not appear flashes stand-by | Replace diode d5010,q5001,q5002,q5017,q5009 (rjp30h1) can replace with30f124 | speedtec |