Intermec ColorCoder V4 Service Manual page 255

6.8 Function Troubleshooting, cont'd
6.8:A Measures to Take Against Malfunctions, cont'd.
Abnormal Control Panel Display
Cause Step
Connectors and Wir-
ing
Control panel PCB
Formatter PCB
Abnormal Switch Action of Control Panel
Cause Step
Key top
Connectors and Wir-
ing
Conductive rubber
sheet
Control panel PCB
Formatter PCB
Intermec ColorCoder V4 – Service Manual Ed. 1
Check Point
1 Are the connections and wiring of the
following connectors in order?
• Control panel PCB: CN1
• Formatter PCB: J106
Is the problem corrected when the con-
2
trol panel PCB is replaced?
3
Check Point
1 Is the stroke and click sensation nor-
mal?
2 Are the connections and wiring of the
following connectors in order?
• Control panel PCB: CN1
• Formatter PCB: J106
Is the conductive rubber sheet properly
3
attached? Is there any foreign matter or
dust on the contact point unit?
Is the problem corrected when the Con-
4
trol panel PCB is replaced?
5
Chapter 6 Troubleshooting
Result Corrective Action
No Reconnected and rewire the con-
nectors properly?
Yes Finished.
No Replace Formatter PCB.
Result Corrective Action
No Reattach the key top properly. If
it is damaged, replace it.
No Reconnect and rewire the con-
nectors properly.
No Reattached the conductive rub-
ber sheet correctly. Remove the
dirt from the contact point unit.
Yes Finished.
No Replace Formatter PCB.
254