Training Guide Course No. 196514
Level 2 Maintenance, X-1000 Series Dispensing Systems 4-25 P/N 196515 (Revision A)
Locate chips U15 and U14 on the
Main Interface PWA on the
Computer Door.
Is the reading greater
than 4 VDC?
Main Interface PWA (P/N
60-1200-00) has failed
With the Front Hatch closed,
measure the VDC at Pin 10 of
chips U14 and U15 on the Main
Interface PWA. Use TP2 labeled
GND for ground.
Locate chip U5 on XY Servo
Interface PWA.
With the Front Hatch closed,
measure the VDC at Pin 2 of chip
U5 on the XY Servo Interface
PWA. Use TP8 labeled GND for
ground.
Is the reading greater
than 4 VDC?
Go to Servo Low Power
Signal Verification
Procedure
Servo Signal Interconnect
Cable A (P/N 06-4525-00)
has failed.
Verify Servo Interconnect
A Cable (P/N 06-4525-00) is
connected to XY Servo Interface
PWA J19 and the Main
Interface PWA J29.
Yes No
YesNo
Locate chips U15 and U14 on the
Main Interface PWA on the
Computer Door.
Is the reading greater
than 4 VDC?
Is the reading greater
than 4 VDC?
Main Interface PWA (P/N
60-1200-00) has failed
With the Front Hatch closed,
measure the VDC at Pin 10 of
chips U14 and U15 on the Main
Interface PWA. Use TP2 labeled
GND for ground.
Locate chip U5 on XY Servo
Interface PWA.
With the Front Hatch closed,
measure the VDC at Pin 2 of chip
U5 on the XY Servo Interface
PWA. Use TP8 labeled GND for
ground.
Is the reading greater
than 4 VDC?
Is the reading greater
than 4 VDC?
Go to Servo Low Power
Signal Verification
Procedure
Servo Signal Interconnect
Cable A (P/N 06-4525-00)
has failed.
Verify Servo Interconnect
A Cable (P/N 06-4525-00) is
connected to XY Servo Interface
PWA J19 and the Main
Interface PWA J29.
Yes No
YesNo
Diagram Sheet 4-2-18
Interlock Fault Isolation Procedure - Hatch Open Signal Verification