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Section 6: Troubleshooting
M84Pro Service Manual PN 9001111A Page 6-8
7 Troubleshoot and/or replace components as directed in their respective procedures.
Figure 6-1, TP Test Module Usage
NOTE: Voltage readings must be +/- 10% of specification for proper
operation.
DIAL APPLICATION DESCRIPTION
0 through 3 Used to determine voltage. Refer to the specifications section of this manual to determine
a component’s required voltage level. Set the dial to that voltage requirement and the milli-
meter reading should be in the same range if properly performing.
4 Used for testing and adjustment of the VR5 potentiometer when Eye-Mark printing.
5 Used for testing and adjustment of the VR4 potentiometer when GAP printing.
6 Used for testing and adjustment of the VR2 potentiometer when printing with dispencer.
The potentiometer should be turned fully clock-wise for this operation.
7 Used for testing and adjustment of the VR3 potentiometer for ribbon end sensing.
I
E
E
E
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+
R
S
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O
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R
D
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