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Service Guide OL400
Chapter 3 Maintenance & Disassembly
3.3.06 Voltage Adjustment (+5 vdc)
Procedure
1.
Remove the upper cover.
2.
Remove the shield cover.
3.
Remove the main controller board.
4.
Use a digital voltmeter which has an input impedance of 10M Ohms and is capable of
displaying to the second decimal place or farther.
5.
Check the voltage at CN1 of the interconnect board (1) between Pin 31, 5 vdc and
Pin27, 0 vdc .
The value should be +5.0 vdc (+/-0.1).
6.
If adjustment is required, remove the font guide.
7.
Change the output voltage by adjusting potentiometer RV1 on the power supply board (2).
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