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MECHANISM TROUBLESHOOTING GUIDE
1.Deck Mechanism
A.
Auto REW doesn't work.
YES
Is the output of END sensor of |
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supply side "H"? |
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“H”: more than 3.5V |
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“L”: less than 0.7V~1V |
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| YES |
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| NO | |
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| Is the Vcc. voltage of End | ||||
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| sensor 5V? |
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| YES |
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| Replace the End sensor. |
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| NO |
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Is the voltage across IR LED | Replace the IR LED. |
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between 0.8~1.5V? |
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Check the syscon power.
YES
Check the syscon circuit.
B.
No F/R modes.
YES
Is the present mode
F/R Mode?
NO
Is the mode SW assembled correctly? (refer to page
YES
Does the Capstan Motor rotate?
YES
Do the T/Up, Supply Reel rotate?
YES
Check the syscon circuit.
NO
Is the normal voltage supplied to the Capstan Motor Vcc1, Vcc2?
YES
Does terminal voltage(Vctl) of Capstan Motor supply side more than 4V?
YES
Replace the Capstan Motor.
NO
Check the servo, power circuits.