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 | TV2090 U14 | When turned on, there is a brief hiss and it only cuts out and only turns on again if the main capacitor of the power supply is discharged. | Try turning it on and off without arming the protection, sometimes notice if the fly bek feels on the foot | Fly bek | edezio eletronica |
| SEMP | 2934 (B) SL SK-91 | Vertical closed | Diode (d-306) aberto | Replace it for a sk4f1/10 | Ademar Videira sc |
| SEMP | TV2052 U19 | Low power supply +/- 60volts and pulsing | C-865 10k shorted | Replace | LUCIANO |
| SEMP | 2134 (B) | Closed horizontal | Q606 | To replace | This email address is being protected from spambots. You need JavaScript enabled to view it. |
| SEMP | TV2084 | Defective fly-back, sparking | After changing the fly, the TV had a blue screen and no characters | D901 on the kinescope board (1n4148) and short. replace the same | Eletronica Staub |
| SEMP / TOSHIBA | TODOS | Everyone who uses the bu 808-dfi and it heats up too much, or shorts out | Definitive solution | Use the transistor (2sc 5902) in place of bu 808, retighten the capacitor (c-419) and place a 100 x 63 volt one, add a 1n 4148 diode in parallel with the c-419, connect the katode to the negative of the capacitor and the anode on the positive, remove the resistor r 426 or r 427 and place a 0.47 obms resistor, there is no need to place a heat sink | Ademar Videira sc |
| SEMP | 2091-KAV | Vertical closed | Check regulator q-421 (7805) with cold welding or open | Ademar Videira sc | |
| SEMP | TV2134 SL SK11 | Image with excessive brightness contrast does not adjust | Electrolytic capacitor 4;7x250 position c329 with broken pin | To replace | Vanin eletronica megatron |
| SEMP TOSHIBA | LC2640W HL57 | No sound or popping and varying volume | Cto 18v. | Replace of re 552 (6k2) for 4k7 or 3k9. pin 4 tpc8111. smd | joaomvj |
| SEMP | TV2158NFS U18 | The LED is blinking and the supply is low +b with 48v | Substituir c865 (10k) | joansa eletronica | |
| SEMP | TV2091KAV U15 | Turn on the LED, it oscillates and goes out quickly, it takes a while to turn it on again | Shorted vertical output | TDA02 = ao tda8177 | Ádrian Chapadão do Céu-Go |
| SEMP | LC2640W HL57 | Sound popping up, sometimes it gets low and then suddenly gets loud. | Reg. 9v qe53 regulator power supply board, the board after the power supply. | Replace ic | joaomvjr |
| SEMP | TV2134 | Turn on turn off | R633 220k open or changed | fabiusmax | |
| SEMP | TV1497LM U16 | Turns on oscillates and cuts off with a hiss coming from the fly back and turns off heats the horizontal output a little | D-448 there is no point in testing, you have to change it | Replace d-448 e q-430 | samuel leite |
| SEMP TOSHIBA | 2934SKY | Replace tl 431 | Ic tl 431 | Replace tl 431 | dede som |
| SEMP | TV2134(A)SL SL11 | Vertical fexado | D301 open put in place 1n4007 | Badri eletrônica | |
| SEMP TOSHIBA | VARIOS TODOS OS QUE USAM O BU808 | Transistor burnout | It heats up a lot and burns | Firstly we must measure the +b on the cathode of the diode (d-448) it must be more than 12 volts, if it is below that replace the diode, if the +b still remains low place a 10r resistor in parallel with the one already exists in the anode of the diode | Ademar / Videira s.c |
| SEMP | TV2134 (B) SL SK11 | Immediately burning the c.i 601 (strw6554a) | Capacitor c607 de 220mf/450v | antonio dos santos | |
| SEMP | TV2159 U19 | Vertical with stripes on top of the tube | 100x35v dry capacitor 308 | Replace it for the same | ELETRONICA CAVALCANTE EM MARTINOPOLE-CE |
| SEMP | TV2134 (B) SL SK11 | With black band in the right and left corners, image distortion and image stretching in the vertical direction | Qa02 (Staqta0) |