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There are currently no product reviews.
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Acurate informations inside the SM and I could repair my old Sansui SC-3330 without any problems. Thanks.
;
I used it to repair a NAD 7030, but unfortunately, the 7045 is different !
But documentation was useful.
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Content A4 and A3 format pages. Exactly what I needed to restore my old receiver.
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Content A4 and A3 format pages. Exactly what I needed to restore my old receiver.
;
Thanks you very much for this "hard to find" service manual.
Will help a lot in repairing this receiver.
MECHANISM TROUBLESHOOTING GUIDE
1.Deck Mechanism
A.
Auto REW doesn't work.
YES
Is the output of END sensor of supply side "H"? �H�: more than 3.5V �L�: less than 0.7V~1V
YES
NO
Is the Vcc. voltage of End sensor 5V?
NO
Check the syscon power.
YES
Replace End sensor.
Is the voltage across IR LED between 0.8~1.5V?
NO
Replace LED.
NO
Check syscon circuit.
B.
No F/R modes.
YES
Is the present mode, F/R Mode?
NO
Is the mode SW assembled correctly (refer to Pages 4-14.)
YES NO
Does the Capstan Motor rotate? Is the normal voltage supplied to the Capstan Motor Vcc1, Vcc2.?
YES
Do the T/Up, Supply Reel rotate?
YES
Does terminal voltage(Vctl) of Capstan Motor supply side more than 4V?
NO
Check Servo, Power Circuits.
YES
Check syscon circuit.
YES
Replace the Capstan Motor.
4-23
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