Agilent Technologies 54502A Manuel de service Page 73

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Power Supply
Assembly
Adjustment
1. Disconnect power cord from HP 1650B/51B. Refer to figure 4-1.
2. Connect the negative lead of the voltmeter to Power Supply Assembly ground.
3. Connect the positive lead of the voltmeter to + 5V on the Power Supply
Assembly.
4. Connect the power cord to the HP 1650B/51B and put power switch in ON
position.
5. Voltmeter should indicate voltage within the range of + 5.180 V to + 5.220 V.
6. If voltmeter reading is out of this range, adjust + 5 ADJ on Power Supply
Assembly to + 5.200 V % .050 V (+ 5.180 V to + 5.220 V).
Caution High voltages exist on the sweep board that can cause personal injury. Avoid
contact with the CRT monitor sweep board when adjusting the + 5V.
Figure 4-1. Power Supply Adjustments
HP 1650B/1651B Adjustments
Service Manual 4-3
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