Intermec ColorCoder V4 Service Manual page 250

6.8 Function Troubleshooting, cont'd
6.8:A Measures to Take Against Malfunctions, cont'd.
Error Indication "26"
Cause Step
Ink Room (lower)
Engine 1 PCB
Error Indication "27"
Cause
Step
Connectors and
Wiring
Engine 1 PCB
Error Indication "28"
Cause
Step
Connectors and Wir-
ing
PHS Lock Unit
PHS open/close de-
tection switch (MS1)
Engine 2 PCB
Intermec ColorCoder V4 – Service Manual Ed. 1
Check Point
1 Has ink dripped and collected in the ink
room (lower)?
Is the problem corrected when Engine 1
2
PCB is replaced?
Check Point
Are the connections and wiring of the
1
following connectors in order?
• Engine 1 PCB: J307
• Formatter PCB: J105
Is the problem corrected when Engine 1
2
PCB is replaced?
Check Point
Are the connections and wiring of
1
the following connectors in order?
• PHS lock unit connector: J72
• PHS lock solenoid connector: J7
• Engine 2 PCB: J406, J411, J412
• Engine 1: PCB J309
• PHS open/close detection switch
(MS1) fasten terminals
2 Is the PHS lock unit working properly?
3 Are the PHS open/close detection switch
(MS1) and switch holder properly at-
tached?
4 Turn OFF the power switch. Place the
two probes of a tester on the terminals of
the PHS open/close detection switch
(MS1). Is the resistance 0 ohms when
the switch is ON, and ∞ ohms when it is
OFF?
When the voltage is checked by turning
5
on the power switch with the PHS unit
in the closed state, and placing the +
probe of the tester on J411-2 and the –
probe on J405-2 of Engine 2 PCB, is it
about 24V?
Chapter 6 Troubleshooting
Result Corrective Action
Yes Remove the ink and clean. After
that, check the place where ink
dripped and take corrective ac-
tion. Replace the electrical parts
which were splashed with ink,
too.
Yes Finished.
Result Corrective Action
No Reconnect and rewire the con-
nectors properly.
Yes Finished.
Result Corrective Action
No Reconnect and rewire the con-
nectors correctly.
No Replace PHS lock unit.
¨
No Reattach PHS open/close detec-
tion switch (MS1) and switch
holder properly.
No Replace the PHS open/ close
detection switch (MS1).
No Replace Engine 2 PCB.
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