Dc Power Supply Adjustment And Checks; Electrical Adjustments - Hitachi 902 Service Manual

14. ADJUSTMENT SPECIFICATIONS
14.1

Electrical Adjustments

14.1.1 DC Power Supply Adjustment and Checks

Carry out adjustment and checks of the power voltages shown in Table 14-1.
Table 14-1 Analyzer DC Power Supply Adjustment/Check Specifications
Voltage(V) Adjustment/Check
Adjust to 5.35 ± 0.05 V
5
Adjust to 12.3 ± 0.05 V
12 (lamp)
Check -15 ± 0.8 V
15
Check -15 ± 0.8 V
-15
Adjust to 24.3 ± 0.1 V
24
Voltage Measuring Position
5 V power output terminal
12 V power output terminal
TP6-TP5 on DIP board
TP7-TP5 on DIP board
24 V power output terminal
14 - 1
Adjusting Trimmer
5 V power trimmer
12 V power trimmer
−
−
24 V power trimmer