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4-6
Calibrating and Adjusting
To adjust the power supply
4
If the +5.1 V measurement is out of tolerance, adjust the
+5.1 V / -5.2 V balance adjustment on the power supply. See Figure 4-2.
5 If the -5.2 V measurement is out of tolerance, adjust the
+5.1 V / -5.2 V balance adjustment on the power supply. See Figure 4-2.
The +15.75 V supply is not adjustable, and is dependent upon the +5.1 V supply.
Figure 4-2
Low Voltage Power Supply Adjustments (on the top of the oscilloscope)
6 If adjusting the power supply does not bring all the voltages within
tolerance, go to the “Troubleshooting” chapter.
+5.1 / -5.2 V
Balance Adjustment
E2 and E3
8.5 V DC
Fan Connector Printer Power
+3.3V Adjustment
service.book Page 6 Wednesday, December 18, 2002 8:35 AM