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 |
|---|---|---|---|---|---|
| ELSYS | ETRS 35 | Doesn't start | C182 | Replace | Eduardo |
| SMS | NET 4+ 1400VA | Snore or traffic no battery mode | Ic6, q7, q10, d20, re5 | Lm324, bc337, 1n4148, output relay | Adrian Chapadão do Céu-Goias |
| BUSTER | HBTV-42L03FD | Truvada stand by | Change without measuring d26 d27 on signal board | presto eletrônica | |
| SAMSUNG | PN43H4000AG | TV does not turn on or come on stand by, | Stand by voltage giving 1.2 volts | Resolder all the components on the power supply board including the SMD ones and, as a precaution, replace the photo couplers since Samsung has had problems with photo couplers. | Eletrônica Santista |
| SAMSUNG | LN32D450 | No image | V-com sem os 16v | After changing the cm501 twice in vain, I decided to replace the 6r8 inductor and the corresponding rectifier, the image came back immediately. | davi.sls |
| PHILIPS | 42PFG6809/78 | Doesn't start | Power outage | Jefferson | |
| SONY | HCD-EX660Z | I put it in the socket and it goes into protection: it heats up and burns q701 | Replace smd capacitor on panel c.325 in short | Replace q701 and smd capacitor on panel c325 | José Dias |
| SONY | KDL-42W655A | Standby LED flashing red 5 times | Oxidation on the lvds cable contacts | Cleaning was carried out on the lvds cable contacts and board connectors. defect resolved. In many cases, only replacing the lvds cable can remedy the defect. | Fabricio |
| LG | E2360V | Turns on, all functions work, but when inputting a video signal, tsound is a black screen (no image) | Flash rom data corrupt (u402) | Rewrite the flash memory and it works normally again. | PRO PC ELETRÔNICA E INFORMÁTICA |
| CCE | LH42G | Does not turn on or light up | Initially I suspected the main board | Changing ci smd power supply l6599d works perfectly | eletronica junior reginaldo moronte |
| SAMSUNG | CL21Z50MQ | I'm sound | Zd605 shorted, 5.6v is close to the sound output | Replace | |
| SEMP | TVC206VS | Vertical open only 8cm in the center of the screen. | C303 de1mf/50v, measuring 4.7mf on the capacitance. | Ademir tc | |
| LG | 42LG60 | Blue image | Change capacitors on the main board. In this model, the capacitors end up drying out over time. | Rmseletronica | |
| SAMSUNG | LN40C550J1M | It doesn't turn on, the standby LED stays on and controls are stuck, sometimes it turns on and works for a while and restarts or turns off and gets stuck again. | The defect is on the main board wsound tsound was an intermittent defect in IC 203 that did not generate 5v. | Substituir o ic 203 na pci principal - (z1031) | Eletrônica Video Color |
| ELSYS | 2.0 PRETO | Stays on standby and doesn't turn on, power supply ok | Numeric display | Adrian Chapadão do Céu-Goias | |
| EPSON | S12+ EH-TW480 | It doesn't turn on, it doesn't even light up the standby LED | Ic2003(54331/changed) and c2037(SMD shorted) | Smd capacitor is on the 17v line and is located below the cn2000 connector (pins 3 and 4 = 5vdc and pin7 = 17vdc) | jjsantosneto |
| SONY | MHC-GTR888 HCD-GTR888 | This sound arrived at my workshop, with the following defect, it appears protected | I checked the photocouplers and mosfet of the power supply are all ok, I checked the power supply are all normal, the defect is on the pre amplifier board, I found the defect 8 mosfet irf6775m bad 4 irs2092s shorted on the 5v pin, I removed parts from a good LG scrap cm9740, I replaced all c4056, c4055, c4039, c4038, c4049, c4050 and c4014, the electrolytic capacitor 47uf 35v I placed 47uf 50v close to regulators, ic4900 - njm2903v with leakage, r4602, r4603, r4604 and r4605 10r smd changed, I changed them all, q4501 - code lf = 2sc3052 smd in cuto, ic4400 - ba4580r smd in cuto, q4004 - kta -1023y in short and d4001 - 10v zener in short under the board q4070 and q4068 - code yw = 2sa2026 can be found in scrap and smd resistor very close r4305 - 10k sms with leak. As soon as I replaced all these parts I placed an adapted 12v cooler inside the device facing the regulators and IRF6775M heatsink to cool the components. | Defect resolved, my client thanked me, it didn't work but protected for 3 months, everything ok | Carlos |
| CENTURY | MIDIABOX B2 | Flashing red led | Power supply oscillating | Replace viper 28 photocoupler and all electrolytic capacitors on the power supply | Opinion |
| SAMSUNG | CL-21A551ML | Cup effect | In my case it was r411 | José Dias | |
| ELSYS | 2.0 | Does not arm the relay | Burnt smd 106 resistor | <small>gsaeletronica &informatica</small>GRANJA CALIFORNIA |