MECHANISM TROUBLESHOOTING GUIDE
4-23
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 the IR LED.
Is the Vcc. voltage of End
sensor 5V?
Check the syscon power.
Replace the End sensor.
Check the syscon circuit.
NO
YES
YES
YES
YES
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 4-14.)
Is the normal voltage supplied to
the Capstan Motor Vcc1, Vcc2?
Does terminal voltage(Vctl) of
Capstan Motor supply side more
than 4V?
Check the servo, power
circuits.
Replace the Capstan Motor.
Does the Capstan Motor rotate?
Do the T/Up, Supply Reel
rotate?
Check the syscon circuit.
YES
YES
YES
YES
YES
YES
B.
Summary of Contents for KE-20P32X
Page 21: ...3 9 BLOCK DIAGRAM ...
Page 28: ...3 16 PRINTED CIRCUIT BOARD MAIN ...
Page 30: ...3 18 POWER ...
Page 31: ...3 19 CPT AV 14 AV 20 ...
Page 63: ......