Rap 3.1 Punch Interlock Switches - GBC FusionPunch II Service Manual

RAP 3.1 Punch Interlock Switches

Description
This RAP is used to troubleshoot failures of all
Punch Interlocks (Doors and Covers). Specific
problems would be when an open interlock is
continually indicated, even when the doors and
covers are closed.
Procedure
1. Using the information in the table below,
enter the Diagnostics mode and use the
left/right keys to select the desired input.
Interlock Diagnostic
Top Covers P INA6 Top Covers
I3 1100110011001100
Left Door P INB3 Left Door
I14 1100110011001100
Middle Door P INB2 Middle Door
I15 1100110011001100
Right Door P INB1 Right Door
I16 1100110011001100
Sequentially activate and deactivate the
interlock and observe the Control Panel for
a change in state (0 to 1, or 1 to 0).
There is a change in state when the
interlock is activated and deactivated.
Y N
Go to step 2.
Go to Step 7.
2. Using the information in the following table,
on the Punch I/O PWB check the LED that
corresponds with the interlock.
Sequentially activate and deactivate the
GBC FusionPunch II Service Manual
interlock and observe the LED for a change
in state (Interlock closed = Off, Interlock
open = On).
Interlock I/O PWB LED
Top Covers LIA6
Left Door LIB3
Middle Door LIB2
Right Door LIB1
There is a change in LED state when the
interlock is activated and deactivated.
Y N
Go to Step 4.
Go to step 3.
3. Using the information in the following table,
check the continuity of the cable between
the P25 pin corresponding to the Interlock
and the corresponding pin on P3.
Interlock Check
Top Covers P25-INA6 to P3-13
Left Door P25-INB3 to P3-14
Middle Door P25-INB2 to P3-15
Right Door P25-INB1 to P3-16
The continuity is OK.
Y N
Replace the cable between the Punch
I/O PWB and the Little Star Controller
PWB (PL 6.1A).
12/2003
2-19
Replace the Little Star Controller PWB (PL
3.1).
4. Using the information in the following table,
disconnect P/J 19 on the Punch I/O PWB.
Check the corresponding I/O PWB LED to
see if it is lit when the connector is
disconnected.
NOTE: In this step, you are checking
to see if the LED remains LIT when the
P/J is disconnected, NOT flashing.
Interlock I/O PWB LED
Top Covers
Left Door
Middle Door
Right Door
The LED corresponding to the suspect
interlock remains lit when P/J 19 is
disconnected.
Y N
Leave the connector disconnected
and go to Step 5.
Leave the connector disconnected and go
to Step 6.
RAP 3.1 Punch Interlock Switches
LIA6
LIB3
LIB2
LIB1