GASBOY Series 9800A
5-6
03/07/03
REPLACING THE CPU PCB
1.
Disconnect all cables [1] from the CPU PCB.
2.
If an optional RS-485 or Pump I/F PCB is installed, remove the two Phillips screws [2]. Pull
the optional PCB off of the CPU PCB.
3.
Remove the screws from the CPU PCB and unsnap PCB from standoffs.
4.
Remove the program IC from socket U18 [3] and the memory IC from socket U19 [4] of the
defective CPU PCB by gently prying with a slotted screwdriver.
5.
Install the old program IC and memory IC into sockets U18 and U19 on the new CPU PCB.
Be careful to observe proper pin orientation.
6.
Reverse Steps 1 through 3 to install the new CPU PCB.
7.
Verify that the switch settings on the new CPU PCB are correct. See the switch settings in
Section 3, Electronic Head Assembly for verification.
Summary of Contents for 9800A Series
Page 8: ......
Page 11: ...Chassis Wiring 03 07 03 2 3 115VAC 60 CYCLE PUMP WIRING...
Page 12: ...GASBOY Series 9800A 2 4 03 07 03 115VAC 60 CYCLE DISPENSER WIRING...
Page 13: ...Chassis Wiring 03 07 03 2 5 230VAC 50 CYCLE PUMP WIRING...
Page 14: ...GASBOY Series 9800A 2 6 03 07 03 230VAC 50 CYCLE DISPENSER WIRING...
Page 15: ...Chassis Wiring 03 07 03 2 7 115VAC 60 CYCLE FRONT LOAD OPTION PUMP WIRING...
Page 16: ...GASBOY Series 9800A 2 8 03 07 03 115VAC 60 CYCLE FRONT LOAD OPTION DISPENSER WIRING...
Page 17: ...Chassis Wiring 03 07 03 2 9 230VAC 50 CYCLE FRONT LOAD OPTION PUMP WIRING...
Page 18: ...GASBOY Series 9800A 2 10 03 07 03 230VAC 50 CYCLE FRONT LOAD OPTION DISPENSER WIRING...
Page 19: ...Chassis Wiring 03 07 03 2 11...
Page 20: ......
Page 39: ...Electronic Head Assembly 03 07 03 3 19 Connectors Relay Drive Pump Motor Power...
Page 60: ......
Page 65: ...Replacement Instructions 03 07 03 5 5...
Page 72: ...GASBOY Series 9800A 5 12 03 07 03...
Page 75: ......
Page 76: ...APPENDIX PARTS LIST...
Page 77: ......