Semp TV Repair: Common Faults and Solutions.
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Results: 2824
Results: 2824
Semp Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| SEMP | LC4046FDA | Does not turn on backlight, has sound but no backlight | Defective inverter board on ci 4614b (position q310), as per tip sound on Bertinetti's forum | Replaced ci (q310) and fuse (f102) | Claudio Jorge Eckert Junior |
| SEMP TOSHIBA | 2159OFS U19 | Blue screen, obscuring even the characters on the TV | Smd transistor q906 on the tube plate limiting the collector voltage of the q905 to 14v, when it should be around 120v | Removing the q906 the image returned to normal. | Tiago C. Neves |
| SEMP TOSHIBA | DL4844(A)(F) DL4844 | On, it always turns off and the LED stays green, just by turning off the socket | I followed the tip mates, replace r766 5k1 with 10k and leave only 1 resistor on each drive output | vanderli | |
| SEMP TOSHIBA | LE3256 | Turns on but doesn't tune in to digital channels | Resolder the integrated circuit on the headphone plug side | Fernando | |
| SEMP | TV1454(P)SL KD-321 | Power supply voltages oscillating and hissing in the transformer | Primary capacitor c505 with low capacitance | Capacitor replaced | Elismar |
| SEMP | 32RV800(A)DA | TV with audio failing | Broken speakers and depleted electrolytic capacitor | Replace the speakers and the electrolytic capacitor c815 220 35v on the main PCI. | Eletrônica silva-Ap |
| SEMP TOSHIBA | 1451NAV U18 | Turns on with a loud noise from the chop transformer | C865 with leak | Eletrônica_ND_ | |
| SEMP TOSHIBA | LE4056 | Backlight off (LED symptom) | Capacitors cw961 and 963 bloated, even so the backlight kept oscillating (hours and hours of analysis), as per the tip sound on the forum, I removed capacitor c722 (at the bottom of the ci n701), the TV stabilized, working normally) | Claudio Jorge Eckert Junior | |
| SEMP TOSHIBA | DL3244(A)W | TV turns on standby from red to green normal power supply but the LEDs do not light up | N506 memory ci | By changing, I got the 5v from pin 3 to the blacklight controller, the TV worked normally | manin |
| SEMP TOSHIBA | 2982AV | Still power supply | 10 micro electrolytic capacitor zeroed on the power supply primary | Capacitor replaced | DJALMA DE OLIVEIRA |
| SEMP TOSHIBA | LC3246WDA | Yellow LED neither green nor red | Missing 5va which is produced in c.i n802 coming from 5vsby. | Cause v805 open npn. | ELETRONICA BRAMBILA |
| SEMP TOSHIBA | TV1454 (O) SL 19 | Vertical closed halfway up, open just two fingers downwards. | After much searching and without finding the electrical diagram, the diode was open right behind the heatsink. | Diode on pin 6 open from Silva. hahahaha | DJALMA DE OLIVEIRA |
| SEMP TOSHIBA | DL3277(A) | TV does not turn on, LED STBY turns green, brightness increases and decreases, but does not turn off. | This photo processor icp2. | To replace. reading on normal multimeter. | Matões Assistência Técnica |
| SEMP | LE3973 | Does not tune digital channels | Missing 3.3v for tuner | Replace u18 3.3v regulator | mfelipe |
| SEMP TOSHIBA | TV1454 P SL | I'm sound | Rewrite the eprom | I leave the two files sound (https://www.4shared.com/zip/rxmw3l1bea/tv_1454_p_sl_eprom.html) | NATO ELETRÔNICA |
| SEMP | TV1450MAV U17 | Lack of red. I increased the grid and it blinked. | R915 amended. | jr_TEC | |
| SEMP | TV1450MAV U17 | Lack of red. I increased the grid and it blinked. | R915 amended. | jr_TEC | |
| SEMP/TCL | 55K1US | Dark screen only sound | Led bars | Changing LED bar kit LED voltage was 118v. when the right one would be 108v each led is 3v I removed r772, r773, r789 the voltage dropped to 106v | Valerio |
| SEMP/TCL | 55K1US | Dark screen only sound | Led bars | Changing LED bar kit LED voltage was 118v | Valerio |
| SEMP TCL | L49S4900FS L49S4900FS | Television does not turn on completely inoperative does not light stand by led fuse burnt out due to shorted regulator | 2 regulator 50wn1k0 shorted replace with tk7p60w | If the TV had a blown fuse, check these regulators on the board, position QW3 and QW4. After the replace, the TV started working normally again. | Eletronica15 |