Dicas Reparação
Modelo - Chassis CW
Pesquisa: CW Enviar Dica Resolvida
Resultados 182
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | TCW233 | NO OUTPUT FROM A DECK - DISPLAY FLUCTUATES - NOT IN PLAY | This unit had two unrelated problems. No output from A deckwas traced to a bad A-B switching IC. The display problem was still pre-sent. If a tape was played, then STOP pushed, the meter would show anindication like an oscillation in both channels. F | ||
| Sony | TCW233 | REC MUTE ACTIVATED CONTINUOUSLY | REC MUTE would not release in record mode. I found that Q305emitter input was from a line regulated by D506, and the base input indir-ectly from a line regulated by D505. | ||
| Sony | TCW255 | FAILURE OF IC-401 | No play or record on tape B. | ||
| Sony | TCWR950 | CORRECTION OF SERVICE MANUAL | Bob St. George found an error in the schematic. Please notethe attached correction. -HQ COMMENTS: Thanks for the info. We will issue a service bulletin. | ||
| Sony | TCW21 | NO P/B OR REC WITH B DECK | No P/B or REC with B deck. No indication on level meters.A deck PLAYBACK OK. Found IC309 Pins 9, 13 held at -5.8V instead of+6.4V. Traced switching logic back to Pin 2 of IC402. It measured0.6V instead of -5.8V. Found IC401 at Pin 6 was drawing exce | ||
| Sony | TCW530 | MISSING PART NUMBER | I can't seem to find the part number for Q549/Q548 rotationdetectors in the service manual. Am I correct in assuming the numberis 8-719-939-11? Please advise. -HQ COMMENTS: You are correct. The part number for the rotationdetector diode type GP-2509 | ||
| Sony | TCWR530 | NO RECORD | The unit would not record. We found the problem to be causedby a shorted trimmer cap in the bias osc. circuit, C312. | ||
| Sony | TCW5 | INTERMITTENT SQUEELING IN PLAY OR RECORD | A squeeling noise is generated from the mechanism. This noiseis not electronic. Servicer had replaced thrust retainer once before. | ||
| Sony | TCWR730 | UNIT WOULD AUTO REVERSE WHILE PLAYING A TAPE | Customer complained unit would auto reverse while playinga tape. Deck also had mangled some tapes. | ||
| Sony | TCWR930 | SERVICE MANUAL CORRECTION - D914 | D914 is a 24V zener diode. It is listed in the parts listas: HZ27-1LTP / 8-719-992-71. I do not believe that this is correct.Also, it is not listed in the computer. -HQ COMMENTS: The diode type is correct. However, the P/N is not.The P/N should be 8- | ||
| Sony | TCW530 | RECORD LEVEL WILL NOT SET FROM TAPE | Record level will not set from tape, everything else OK. | ||
| Sony | TCWR930 | EJECT BUTTON STUCK | The eject button sticks or falls inside unit. | ||
| Sony | TCW530 | RECORD | Record level could not set. Everything else OK. | ||
| Sony | TCW3 | MUTING PROBLEM | Unit was muted on both decks. However, with deck A in playmode, pushing deck B PLAY, FF or RWD buttons, unmuted deck A. Pin 42 ofIC303 was low. D317 is NOT in the circuit nor is the foil pattern whereit is shown. | ||
| Sony | TCWR930 | HUM | Complaint of hum noise from B deck when recording both deckssimultaneously. |