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 | CL-29M21MQ | Turning on and off by hitting relay | Check zener diode on remote control board | Francisco Ferreira | |
| BEHRINGER | XENYX 1002FX | The table turns on, the signal from the primary (1) and secondary (2) input microphone (mic) normally comes out through the l+r output, but noise appears at the output causing interference | Leaking capacitors were identified (c50, c45, c38, c44, c37, c18, c16, c76) mostly 10uf by 25v, problems also in the lm339 operational (ic7 and ic10), in addition problems were found in the dual channel of the ci 4580n or even though it did not have the voltage for charging the capacitor of -21.7v, its output was 0.07v | The series of capacitors such as (c50, c45, c44, c37, c18, c16, c76) were replaced, the two operational lm339 (ic7 and ic10) were replaced and the ci 4580 typical series n was replaced. | marcosxpd154 |
| SEMP | 2134 C SL | Dead | Str 6453a | Replace of the same | |
| ELSYS | 4100 | Does not arm the relay | Q109 and r117 and 102 both 0.47r r137 22k | <small>GSAELETRONICA & INFORMATICA GRANJA CALIFORNIA</small> | |
| PANASONIC | TC-L32C30B | Turns on without an image appearing, the green LED blinks a few times, then the red LED blinks 3x, pauses and the red LED blinks 3 more times | I did a general inspection of the board and didn't find anything shorted or cold soldered. I replaced the 3 photo couplers on the power supply board and it worked normally again. | I did a general inspection of the board and didn't find anything shorted or cold soldered. I replaced the 3 photo couplers on the power supply board and it worked normally again. | Maicon Martin |
| SOM TOSHIBA | MS8080MUS | Doesn't start. | D960 and q955 on the power supply board changed. replace for a bd 135 observing the position of the terminals. | Replace d960 and q955 power supply board. | Marcones de araripina-pe. |
| SOM TOSHIBA | MS8080MUS | Locked, does not change function | Defective ic501 on the CD board. | In my case, I solved it by changing the CD card for another one. | Marcones de araripina-pe. |
| PHILCO | PH28863D LED | Standby LED turns on, when the power button is pressed the LED turns off and the screen goes dark | Burnt out panel led | Changing the bar or LED | Eletrônica Pauly |
| LG | 32LX330 | Turns on with sound without image like an all-white washed screen | T con plate shorted, replace and go for the hug | ELETRONICA PUBLISOM DE NATAL RGN | |
| BEHRINGER | XENYX 1002FX | The table turns on but tsound is a noise at the l or r output of the room out ctrl and the clip LEDs stay on, doping the signal with the noise | Doping capacitors | Check the gain levels of the equalizer output of the mic 2 table, replace the capacitors c49 and c45, c58 | marcosxpd154 |
| CCE | D32 | TV turns on, green LED lights up, makes a noise at the power supply and stays with orange LED, no image | Defective t1 transformer | Just replace and move on to another | Welliton Campos |
| SEMP TOSHIBA STI | DL2970(B)W DL3270(B)W DL3970(B)F LE3274(A)W LE3974(A)F DL2971(B)W DL3271(B)W DL3971(B)F | Sometimes when you turn on the TV, it doesn't tune to any channel. When you change the channel or turn it off and on, it works normally again. | Check 1v8 regulator u205 near the tuner. if it is below 1v8 (in my case it measured 1v3 defective) change the regulator. | Replace the 1v8 regulator u205. | rafaelmoraes99 |
| PHILCO | PH39U20DSGW | Turn on then turn off | Software update | Software update | Gilberto Costa |
| LG | 42LG60FR | Turns on and off after a while | Capacitors | Replace c1128 - 1109 - 1118 all 100m/16v | Eletrônica Martins JN |
| PANASONIC | TC 37LX80LB | Does not turn on, red LED flashes twice | Inverter plate | Inverter plate | Eletrônica NA |
| PHILCO | PH21M SS | Vertical reduced at the top and with lines in the center of the screen at the bottom. | D301 broken. Note: it does not appear in the multimeter measurement. | Replace d301 and resoldering of the same sector. resistors r317, r3018, r319 and r320, all with poor soldering due to overheating. (As a test, I replaced the c.i. la78141 with the stv8172a (the latter, which was on another board of the same classis, but from another model), had a cushion effect. Tsoundfore, it is not a direct replacement). | R-Tec |
| LG | 32LD350 | Turns on works normally in a few minutes turns off | Defect in the power supply I found some components ic502 and ic503 - el817 with leakage, c509 - 10uf 50v and c510 - 22uf 50v bad, replace without measuring zd504 and zd502 - 16v with leakage small leak, zd503 - b5v6 - with leakage I put c5v6, c501 - 1k 2kv I changed it for hours and it didn't turn off | Defect resolved | Andre |
| SEMP | TV2122 U19 | With vertical lines at the top of the screen | Leaky capacitors near the vertical ci | ,replace c-309 e 308 prox. do ci vertical | BICHYARA |
| PHILCO | PHT660N2 | Doesn't start | Power supply turns on and standby LED turns on and off normally... | Diode d108 or d109 and d110 (overheats and opens), these on the main PCI board. | Jair Ipumirim-SC |
| PHILCO | PHT-660N2 | Doesn't start | Power supply turns on and standby LED turns on and off normally... | Diode d108 or d109 and d110 (overheats and opens), these on the main PCI board. | Jair Ipumirim-SC |