LG / GOLDSTAR AF493Y
Manual de Servicio

MECHANISM TROUBLESHOOTING GUIDE
E.
In PB mode Tape Presence not sensed.

Is the Pinch Roller attached to the Capstan Motor Shaft?

NO

Check Alignment positions (page 4-14)

YES
Does the T/Up Reel turn?

NO
Is the Belt ok?

NO
Replace the Belt.

YES
Does the Capstan Motor turn?

YES
Check the clutch and the Idler Assembly.

YES
Does the Drum Motor turn?

NO

Is the Voltage supplied to the Capstan Motor Vcc1,Vcc2 each?

YES
Are there DPG, DFG Pulses?

YES
Is the terminal voltage of Capstan Motor supplied more than 4V?

NO

Check Servo, Power.

YES
Are the T/Up Supply Reel Sensors ok?

YES
Replace the Capstan Motor.

YES NO
Check Servo, Syscon. Is the Vcc voltage of the Drum Motor normal?

NO
Check Syscon, Circuit.

YES
Is the terminal voltage of the Drum Motor more than 2.3V?

NO

Check Syscon, Circuit.

YES
Replace the Drum Motor.

4-25