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 | LC2640W HL57 | No image | Tsound are voltages, 24v for inverting. | The inverter board and ci's were resoldered. | joaomvjr |
| SEMP TOSHIBA | 2083 FAV U11 | Stretched, shaky image and horizontal lines. | Poor contact in several components: varicap, 5v regulator for the vertical circuit and mainly in r 408. | Resoldering in all mentioned and the main one was in r408(1k). | RONDYSOM |
| SEMP | TV 1030 | Vertical interminente | Bad contact | Resolder q 405 and its adjacent surroundings. | lo |
| SEMP | TV2015 U17 | Vertical beam. but the vertical line is not straight. It keeps making small curves | I changed the vertical outlet and nothing. | Replace deflector without measuring | Deusomar |
| SEMP | TV2091KAV | Vertical closing a bar below the TV then turns off | Changing transistor q422 c3209 = c2655 you can put any of these transistors | Almiro Alves | |
| SEMP | TV 2098 LMS U16 | Turns on and stays in direct standby, not horizontal, it doesn't oscillate. power supplys are all low +20v +>7.5v, +15v=>9.3v and +b 113v=>74v. If it stays for a long time, the horizontal will sometimes fluctuate. the +b with or without flyback remains at 74v | 100u x 25v capacitor in position c887, replace without measuring. | Matões A.Técnia | |
| SEMP | TV 2098 LMS U16 | Turns on and stays in direct standby, not horizontal, it doesn't oscillate. power supplys are all low +20v +>7.5v, +15v=>9.3v and +b 113v=>74v. If it stays for a long time, the horizontal will sometimes fluctuate. the +b with or without flyback remains at 74v | 100u x 25v capacitor in position c887, replace without measuring. | Matões A.Técnia | |
| SEMP | TV 2086 KMS | It takes a long time to turn on, when it turns on tsound is no image and no sound | C= 887 | Replace and analyze components on the same line | ELETRONICA MEDEIROS |
| SEMP | TV1480 | No vertical sync | Open 22k resistor r563. | Ademir solânea pb | |
| SEMP | TV-1452 U19 | Power supply dropping below 90volts, vertical deficiency | Photo coupler | Replace | LUCIANO |
| SEMP | TV 1490(I) U14 | Screen open only about 10 cm. all red, without sound or image. | +9 changed, with almost 12v. | Replace q405 e d412 | reinaldo almeida |
| SEMP TOSHIBA | TV 2091 KAV U15 U14 U17 | When turned off by remote, it erases and returns only image | Does not cut the +b 9v on stand by | Q 432, dtc 123jk open, replace | jasvan souza |
| SEMP | 1491-KAV | Tsound is no +b in secondary school | Q-801 str-w 5753a open or shorted) (r-876 (220r)open) (r-877 (10k) open) (d-876 5.6 volt zener shorted) | Replace them all. | Ademar / Videira s.c |
| SEMP | C2054 | Spiky image with interference in the image | Fly bek | edezio eletronica | |
| SEMP | TS147 | Without color and with reduced vertical | Replace ta8718 | Jony | |
| SEMP TOSHIBA | 2916/NMS U-10 | Smudged or blurred screen | Does not arm the relay to activate the tube coil | Resolder the sr 81 relay pins | Ademar / Videira sc |
| SEMP | TV-2959 | It doesn't turn on, when it turns on after a while it turns off, when the LED comes on in STBY it flashes | Sd19 | Replace without testing, because when testing the capacimeter it shows good | preá- rs |
| SEMP TOSHIBA | 2092 U-16 | When it turns on, the LED turns off, it doesn't turn on and power supplys fail, with the power supply load sometimes it works or doesn't | Vertical output killing 5v after it oscillates | Replace vertical output | WARLEY CESAR |
| SEMP TOSHIBA | TV2015NM U18 | Saturated image in the blue cannon, even with a video signal present. | Change q906 (in short circuit) connected to the emitter of the q905 driver transistor, forcing it to enter a blue screen (blue back) | leitemarcellus | |
| SEMP | TV 2090 E OUTROS | Burning of the horizontal output (bu 808/dfi | Exchanging the same for the same number will catch fire. | Replace with (2sd 1878) replace the 47 x 50v capacitor with a 100 x 50v one, remove the 02 resistors .33r and .47r that are connected to the transistor's emitter and place a ferrite jammer in place of the 2 resistors, also replace the 2sc 1815 and put a small heatsink on the horizontal transistor | Ademar / Videira sc |