SEMP TV Repair: Common Faults and Solutions.
Search: SEMP
Results: 2828
Results: 2828
SEMP Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| SEMP | TV1490 | Image shaking as if the vertical were to close, processor heating up a lot. | Defective 7805 regulator, instead of giving 5 volts, it was giving 8 volts | Replace q421 which is a 5volt regulator 7805 | fabiusmax |
| SEMP | 2082 | Does not turn on, LED is on! | Cold solder not transistor q 430 | Perse | |
| SEMP | 1450 MAV U17 | Audio with dark image: | Replaced c902 1k 2kv, connected to grid 2. The TV returned to normal. | lucas40 | |
| SEMP TOSHIBA | TV2083BAV U10 | Off when volume increases power supply oscillating | Dido zener d876 de 5, shv e p876 smd alterado | Replace | Eletroclaudio Aguas Belas PE |
| SEMP | TV1490 | Vertical closedJust a scratch on the screen | C310 | ELETRONICA ARNI-LEOBERTO LEAL-SC | |
| SEMP | TV2987 | On and off with retrace lines | Saida Vertical Teada 9309 | Changing the output | tecnosat |
| SEMP TOSHIBA | TV2050 -TODOS | Low hoarse sound, on some devices the image expands into greenish tones | Q906 no gain (polarized) | Replace q906 a smd on the kinescope board (tube) | WAGGUINHO |
| SEMP | SD7050S | With sound + no image in any terminal | Mem. eeprom | Replace for the same | ÁdrianChapadãodoCéu |
| SEMP | TV2066 U7 | When it heats up vertically fully closed 8817 maria do andré/ | After checking the entire vertical, the defect was in the ceramic capacitor c304 1500 with low capacitance, this capacitor killed the 4v that feeds the vertical, it is connected to pin 54 of the microphone tb1229an | Tracar c 304 1500 | marcos melo cascavel ceara |
| SEMP | TV2091KAV U15 | Dull | Replace capacitor do screem c902 | Replace without testing | marcondes, OHM eletronica Jaicos-PI |
| SEMP | SD-5090VK PROCSS.ZORAN | Doesn't start | Eeprom u105 24c08 | Secondary power supply between 10/12v, standby on, when turned on the LED goes out and does not arm, just replace the eeprom u105 24c08/24c04 | PALAURO |
| SEMP | TV1490 U14 | LED lights up, but doesn't turn on | C887 de 100mf/50v | Barter it | marcondes, OHM eletronica Jaicos-PI |
| SEMP | TV2082E U7 | Vertical fully closed 8817 maria do andrer | After checking the entire vertical, the defect was in the processor, I removed it and cleaned it, returning it to normal vertical operation. | Clean the microprocessor, check the 4.25 v on pin 54 on the micro | marcos melo cascavel ceara |
| SEMP | TV2987EMS LEM2 F-74/379E | Turns on right after turns off | I changed the capacitor c 448 33uf150v and it didn't turn off anymore, I hope it can help someone, thank you. | gelson eletronica | |
| SEMP | TV2982 LEM9 | Starts and cuts, leaving the LED off and +b with + or - 30v. | Changed resistor r886: note (measure with digital test) | Replace r 886 | GEORGE PONTES |
| SEMP | TVC102 | Out of horizontal frequency (annoying buzzing) and closes the frame | Change c408 next to the computer | Moraes SPTV Campinas | |
| SEMP | TVC102 | Escapes fine tuning | Replace ceramic capacitor c822 power supply board | Moraes SPTV Campinas | |
| SEMP | TV 1484 U11 D2 | Power supply pulsing +b with low value and oscillating | C 810 220/385v I changed it and solved the problem | Paulo. | |
| SEMP | TV 1452 U19 | When turned on, the LED turns on and off quickly, the power supply does not start, +b low. | Strw 5453c, I put a, it worked. | Manoel | |
| SEMP | TV2084 U13 | Overheating 880 and 881 killing 9v voltage | Varicap e r880 e 881 | Replace them | marcondes, OHM eletronica Jaicos-PI |