HDS-X3700
4-6. Replacing the Main Parts
4-6-3. Adjusting the Power Supply Voltage5. Adjust the adjustment volume of the main power
supply unit so that the voltage satisfies the specifica-
ntions.
When installing the unit, changing the board layout or
replacing the power supply unit, be sure to adjust theSpecifications : +11.95 ?0.05 V
power supply voltage.
Required equipment : Digital voltmeter
Adjustment Procedure
Adjustment
1. Remove the front panel. (Refer to Section 4-1.)screwdriver
2. Remove the six screws, and then remove the wiring
terminal drop-safe assembly. (Refer to Section 1-5-2.)
3. Connect the digital voltmeter to the GND terminal
(CNT-7) and +12 V terminal (CNT-8) on the CPU-
317 board.
6. Turn on the power of the main power supply unit, and
then turn off the backup power supply unit.
7. Adjust the backup power supply unit in the same way
as step 5.
8. Turn on the powers of the main power supply unit and
backup power supply unit and confirm that the power
supply voltage satisfies the specifications.
Specifications : +12.0 ?0.1 V
CNT-8
(+12 V)
CNT-7
Procedure after Adjustment
(GND)
1. Remove the digital voltmeter.
4. Turn on the power of the main power supply unit2. Attach the wiring terminal drop-safe assembly using
(upper unit), and then turn off the backup powerthe six screws. (Refer to Section 1-5-2.)
supply unit (lower unit).3. Attach the front panel. (Refer to Section 4-1.)
4-4HDS-X3400/X3600/X3700 |
ACEC
