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– 4 –
DIP SWITCH SETTING OF SCSI-IDE BOARD
ADJUSTMENT PROCEDURE
1. Test Equipments Required
8
The following Test Equipments are required for
adjustment of the Extension Unit WJ-HDE500B/WJ-
HDE505B/WJ-HDE510B.
8
Digital Voltmeter
8
Ceramic Screwdriver
2. Disassembling Procedure for
Adjustment
8
Referring to Fig. 2-1, remove eleven screws that secure
the Top Cover and remove the Top Cover.
Fig. 2-1
Remove eleven screws.
Top Cover
3. Setting Up for Adjustment
8
Disconnect CN101, CN103 and CN104 on the Power
Input Board.
8
Connect the resistors to CN103 on the Power Input Board
as shown in Fig. 3-1.
Fig. 3-1
4. Adjustment Procedure
8
Refer to the Location of the Test Points and
Adjusting Controls on the page 5.
(1). +12V/+5V Adjustment
Test Point:
E2 (+12V)
Power Input Board
E3 (+5V)
Power Input Board
Adjust:
VR1 (+12V)
Power Board
VR2 (+5V)
Power Board
8
Turn on the power.
8
Connect the Digital Voltmeter to E2.
8
Adjust VR1 to obtain +12 V ± 0.10 V DC.
8
Connect the Digital Voltmeter to E3.
8
Adjust VR2 to obtain +5 V ± 0.05 V DC.
10
Ω
/20W
CN103
1
2
3
4
3.3
Ω
/10W
8
When replacing the SCSI-IDE Board, confirm that the #1 -
#8 of Dip Switch (SW1) on the SCSI-IDE Board are set to
OFF position as shown in Fig. 1.
Fig. 1
1 2 3 4 5 6 7 8
ON
OFF
SW1
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