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Section 8: Adjustment Procedures
M84Pro Service Manual PN 9001111A Page 8-12
4 Turn dial (3) on test module (1) to position number 5.
5 Connect the positive (+) probe of the multimeter to pin SIG (4) on test module (1).
6 Connect the negative (-) probe of the multimeter to pin GND (5) on test module (1).
7 Ensure the millimeter is set for DC voltage reading.
8 Place the label backing only in position to be read by the sensor.
9 Adjust VR4 potentiometer so that the multimeter value is less than 0.5 volts.
10 Replace the label backing with a label in position to be read by the sensor.
11 Regard the millimeter for a value of +1.0 volts more than the prior value read.
12 Repeat steps 8 through 11 until the value is +1.0 volts.
13 Test print labels to ensure proper function.
14 Disconnect test module (1) from main circuit board (2) and replace housing covers.
Figure 8-9, Label Sensor Adjustment
NOTE: Refer to TP Test Module Usage in the Troubleshooting section for
additional instruction on test module use.
NOTE: Figure 10-1 in the Diagrams & Schematics section provides guidance
on housing cover installation.
I
E
E
E
1
2
8
4
+
R
S
B
O
A
R
D
0
1
2
8
7
6
5
4
3
G
N
D
S
I
G
1
A
2
A
3
A
4
A
6
B
5
B
4
B
3
B
1
B
2
B
6
A
5
A
2
5
A
6
A
2
B
1
B
3
B
4
B
5
B
6
B
4
A
3
A
2
A
1
A
S
I
G
G
N
D
3
4
5
6
7
8
2
1
0
1
1
3
5
4