TV Repair: Common Faults and Solutions.
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Results: 87576
Results: 87576
Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| SONY | MHC-GTR888 HCD-GTR888 | This sound arrived at the authorized station with the following defect, it turns on and works normally when the volume increases and triggers protect. | I pre-checked the amplifiers and the MOSFETs are all good, the defect was in the power supply, I replaced the following components c221-330uf 450v and c606-1uf 400v a little depleted, d212-b4v7 and d403-c6v8 leak, I touched all the photocouplers nec2561a was leaking, q201- c3209y, q202,q315 and q325-a1281y lots of leaks, q205,q203 and q204-k14a55d with leaks replace for original, bad q311 eq321-k3683, replace for original, q403 eq707 - code - asg smd = kta1504s with leaks, q404 and q4 05 - code alg = ktc3875s with leak and c311 and c321 - 1nf 2kv replace without testing | I turned it on and increased the volume, it was tested for hours, it didn't work, the problem was resolved | Andrei Posto Autorizado Sony |
| PHILCO | PH1454 (P) | Image with waves | Varicap | Replacement | EletroClaudio |
| PANASONIC | TC-L42U30B | No image, black screen but with signal in the backlight, with sound | No +12v signal for tcon | Removal of 3 smd capacitors in parallel at the flat output of the main board for tcom | Core Assistencia |
| PHILIPS | 42PFL3507 | Does not turn on completely inoperative | Capacitor seco | Replace c9353 power supply board | T.CUNHA |
| PHILIPS | 43PFG5000 | Does not turn on inoperative dead power supply due to a raw | C477 shorted on main board | Replace it and that's it or leave it without | orlando lott |
| TOSHIBA | 2934 SK91 | TV without green and as a result the color yellow is also missing. | Leak in the signal preamplifier (g) causing flashing in the green and yellow electronic circuit. | Replace the transistor in position q507 (bf422) on the kinescope PCI. | fr.daniedson |
| LG | 21FU6 TL | TV wouldn't start, when you turn it on, it just stayed on standby | TV went into protection. I thought it was a regulator with a 9v start, but it was fine. Removed the protection and nothing. | Until we decided to measure the 1000/16v c 826, it had very low capacitance, it supplies power to the 9v regulator, it supplies 10.5v, with the TV replaced. | <small>This email address is being protected from spambots. You need JavaScript enabled to view it.</small> |
| LG | 21FU6 | The TV just stayed on, when you click on it, it blinks and comes on again and nothing works. | I thought it was a 9v regulator but it wasn't. it triggered protection. Removed the q19 protection and nothing. Until we measured the c826 at 1000/16, and it was very low capacitance. With the change, TV worked | Bad 1000/16v c. It does not supply the 10.5v voltage that goes to the regulator with the 9v starter. I got it all right. | Marcos/Confresa/MT <small>This email address is being protected from spambots. You need JavaScript enabled to view it.</small> |
| SONY | KDL-46R485A | Turns on and off, flashing 6x red LED | Panel defect | Defective LED bus 2 burnt out LEDs 2.4v LED | JORGE TV TÉC PARANA |
| PHILIPS | 29PT5642 | Cup effect | Data loss | Rewrite eprom | eletronica bianca ipira-ba |
| SEMP | HPS-2197 | Turns on and then turns off and the LED blinks. If you release the deflector coil in the horizontal part, it turns on normally with a vertical line. | Diode d401 sk4f1/10 with leakage. | Replace 401, in my case, tsound was no other like it, and I replaced it with an sk3/16 | MARCONES DE ARARIPINA PE. |
| ELSYS - RECEPTOR OI LIVRE | ETRS35 | Does not turn on, consuming power from the power supply | Shorted capacitor consuming 12 volts from the external power supply | Replace shorted capacitor c168 smd | NARDINHO ALFENAS |
| PANASONIC | 32 | TV turns on and goes to red LED, blinks and doesn't turn on | One or more LEDs burnt out, does not activate the inverter board | ssg eletronica | |
| AOC | LE22H138 | Blue LED turns on and turns orange | Changing the electrolytic capacitor in the 470uf x 10v power supply | Capacitor replaced | FÁBIO |
| SONY | KLD-46R485A | Turns on normally without antenna or video signal when connecting video signal or antenna it turns off | After testing capacitors on the display's v-com, changing the main board gave no results. | After jamping the LED bar contacts, the TV was perfect | freitas |
| TOSHIBA | TV1490 U14 | Turns on bay and takes a while to turn on | Capacitor | Replace of 35v capacitor number c887 for 100μF phone; 082 981408610 or whastapp | Fernando Nascimento |
| STI | LE3256(B)W | It turns on sometimes it's just back light ok | Bga, I did reflow as a paleative and it worked | Angelo MG | |
| PANASONIC | SA-AKX80 SA | Completely off, no LED lit up | Smd-21 on the power supply line of the power supply ci changed | I put a 100k for 250 v | ELETRÔNICA CAVALCANTE MARTINÓPOLE-CE |
| SEMP | 2934 (B) SL | Yellowed image | Q501(bf422) and q503(bf 422) with defects | Changing the aforementioned transistors, it was ok. | Rdo Antônio Acre |
| PHILCO | PH32 LED A4 | Turns on but the LEDs do not light up, only the power LED changes from red to green | All voltages were ok | Memory recording with new software | CENTRO DIGITAL ELETRONICO |