| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Gradiente | Tvs 14/20 Chassis TX75 | ruido quando ligado em 220V | verifique a tensão de 119V +/- 0,5 em CP51 para TV 20 e 108 p/ TV 14. Se necessário, ajuste o PP52 Troque o capacitor CP54 (10nF) por outro de 22nF | ||
| Gradiente | GTV142 | Quando o TV é ligado através da tecla TV ON/OFF com o vídeo ligado, a fonte desarma. O mesmo acontece quando se desliga o aparelho através da tecla Power do C. remoto, ou do painel, durante a reprodução de uma fita | acrescentar um resistor de 1K8 x 1/4W no lugar do jumper J4 (pino 8 do CI STR-S6707) | ||
| Philco | 2956N | TV fica sensivel desligando quando liga outro aparelho | Modificação | ||
| Gradiente | PLT 4270 | imagem aparece apenas metade | Regulador (bd de video) | ||
| Philco | TP1454 | oscila quando quer | eletrolitico 220uf / 400v da fonte primária | ||
| Toshiba | LC 15/2010Z | Display sem Vídeo (Tela toda Branca) e áudio normal | VERIFICAR:U27/D40/C370/C369 | D40 com fuga, Subst Componentes danificados | |
| Toshiba | LC 2010Z | Aparelho Liga, acende o Display e em seguida desliga-se espontaneamente acionando protecção | C30/ C31/ C32 de 100Kpf | PARTE INTEGRANTE DO PAÍNEL LCD!!! | |
| Sony | SLV900HF | POOR VIDEO IN PAUSE - LOOSEN TENSTION ON BELT | Poor video in pause and scan mode. Tech changed capstan motor due to another porblem. Tech put too much tension on belt, this was robbing capstan motor of torque to stop properly in pause mode. | ||
| Sony | SLV790HF | WRONG SILK SCREEN ON MA-251 BOARD | Unit cme in with no sound out of tuner. Delfin discovered that silk screening on main MA-251 board is wrong. Tuner has 27 pins (all outputs on pins 17 - 27). On the board these pins are labled 31 - 42 in case you need to | ||
| Sony | SLV790HF | CAPSTAN RUNS TOO FAST - SOLDERED C256 IN SERVO CIRCUIT | VCR came in with capstan motor running approx. 110% of normal speed. Pause Cue, rev functions not working. All capstan servo waveforms on IC201 were OK. Capstan error integrator (lowpass filter) IC251 had 5V P-P pulses in | ||
| Sony | SLV790HF | CASSETTE MECH LOCK UP | Cassette will not load, instead it is pushed back out. | ||
| Sony | SLV750HF | VERT. LINE IN PIX - REPLACED DELAY LINE DL602 | There is a vertical line of noise in pix just a little to the right of the center. It is visible on a black screen like a yellow vertical bar about 1/2 on 14 screen in PB mode only. SOLUTION: This bar could not be traced by the sco | ||
| Sony | SLV750HF | NO HIGH SPEED REWIND - RESOLDERED CN104-1 ON MF-172 BOARD | No high speed rewind. | ||
| Sony | SLV660HF | INT. NO PIX IN EE - REPAIRED COLD SOLDER ON MA248 BD | Int no pix in EE mode. | ||
| Sony | SLV660HF | REMOTE WON'T WORK - REPAIRED COLD SOLDER CONNECTION /MAIN BD | Remote does not work. |