Psion Workabout MX, Руководство по обслуживанию

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Confidential - PSION INDUSTRIAL PLC
Workabout MX Service Manual
4 Version 1.0
Troubleshooting Guide
Fault Cause Cure
Machine fails to
boot up. 1 Discharged/faulty
batteries.
2 Main PCB fault.
3 Fuse faulty.
4 Battery contact fault.
1 Replace alkalines/replace or recharge
Nicad pack.
2 Remove internals from machine and
check Main Power FFC ZIF Connector.
3 Remove fuse. Check and replace if
necessary.
4 Check for continuity of battery
contacts/Main FFC using multimeter.
Replace if necessary.
Lines on LCD. 1 LCD damaged.
2 LCD ZIF open.
3 Main PCB problem.
1 Replace LCD.
2 Dismantle machine until Chassis
Assembly is exposed, close ZIF,
reassemble.
3 Follow Dismantling the Workabout to
remove and replace Main PCB. Return
faulty PCB to Psion.
Blue portions on
LCD. 1 LCD damaged.
2 LCD ZIF open.
3 Main PCB problem.
1 Replace LCD.
2 Dismantle machine until Chassis
Assembly is exposed, close ZIF,
reassemble.
3 Follow Dismantling the Workabout to
remove and replace Main PCB. Return
faulty PCB to Psion.
Cracks on LCD. LCD glass broken. Replace LCD.
Workabout has
problems with LIF
communications. Main PCB problem. Follow Dismantling the Workabout to
remove and replace Main PCB. Return
faulty PCB to Psion.
Workabout has
problems reading
SSDs. 1 Warped Connector
Block Arm.
2 Main FFC faulty.
3 Door switch on Main
PCB damaged.
1 Dismantle machine, remove and
replace Connector Block.
2 Replace Drawer Assembly.
3 Follow
Dismantling the Workabout to
remove and replace Main PCB. Return
faulty PCB to Psion.
No top port
communications
possible. 1 Damaged expansion
FFC.
2 Warped Connector
Block Arm.
3 Loose ZIF connector.
4 Door switch on Main
PCB damaged.
1 Replace Drawer Assembly.
2 Dismantle machine, remove and
replace Connector Block.
3 Remove outer case of machine,
relocate Expansion FFC and close ZIF.
4 Follow Dismantling the Workabout to
remove and replace Main PCB. Return
faulty PCB to Psion.
No infrared
communications. 1 Top port damaged.
2 Bottom port damaged. 1 Replace Drawer Assembly.
2 Replace bottom infrared port flexi-
connector.
No TTL
communications
possible. 1 Damaged expansion
FFC.
2 Warped Connector
Block Arm.
3 Loose ZIF connector.
4 Door switch on Main
PCB damaged.
1 Replace Drawer Assembly.
2 Dismantle machine, remove and
replace Connector Block.
3 Remove outer case of machine,
relocate Expansion FFC and close ZIF.
4 Follow Dismantling the Workabout to
remove and replace Main PCB. Return
faulty PCB to Psion.