MECHANISM TR OUBLESHOO TING GUIDE
E.
In PB mode Tape Presence
not sensed.
NO
Is the Pinch Roller attached Check Alignment positions
to the Capstan Motor Shaft?(page 4-14)
YES
NONO
Does the T/Up
Is the Belt ok?Replace the Belt.
Reel turn?
YESYES
Check the clutch and the Idler
Does the Capstan Motor turn?
Assembly.
YES
NO
Does the Drum Is the Voltage supplied to the Capstan
Motor turn?Motor Vcc1,Vcc2 each?
YESYES
NO
Are there DPG, Is the terminal voltage of CapstanCheck Servo,
DFG Pulses?Motor supplied more than 4V?Power.
YES
YES
Are the T/Up Supply Reel SensorsReplace the
ok?Capstan Motor.
YES
NO
NO
Is the Vcc voltage of the DrumCheck Syscon,
Check Servo, Syscon.
Motor normal?Circuit.
YES
Is the terminal voltage NO
Check Syscon,
of the Drum Motor
Circuit.
more than 2.3V?
YES
Replace the
Drum Motor.
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