MECHANISM TROUBLESHOOTING GUIDE
88
Auto REW doesn't work.
Is the output of END sensor
of supply side "H"?
“H”: more than 3.5V
“L”: less than 0.7V~1V
Is the voltage across IR LED
between 0.8~1.5V?
Replace LED.
Is the Vcc. voltage of End
sensor 5V?
Check the syscon power.
Replace End sensor.
Check syscon circuit.
YES
YES
YES
NO
NO
NO
1.Deck Mechanism
A.
NO
NO
NO
No F/R modes.
Is the present mode,
F/R Mode?
Is the mode SW assembled
correctly (Refer to Page 79.)
Is the normal voltage supplied to
the Capstan Motor Vcc1, Vcc2.?
Does terminal voltage(Vctl) of
Capstan Motor supply side
more than 4V?
Check Servo, Power Circuits.
Replace the Capstan Motor.
Does the Capstan Motor rotate?
Do the T/Up, Supply Reel rotate?
Check syscon circuit.
YES
YES
YES
YES
YES
YES
B.
YES
