1-31 (E)
1-11. Confirmation of Secondary Power
Supply Voltage
DME-3000/7000 has a power supply of +5 V(A), +5 V(B),
–5 V, and +12 V.
The power indicator uses +5 V(A), and the fan uses +12 V.
After installation of all required board is completed,
confirm the power supply voltage inside the unit as
described below.
Voltage measurement of +5 V(A), +5 V(B), and –5 V
The check terminals in which the probe of a digital
voltmeter can be inserted for the voltage measurement of
+5 V(A), +5 V(B), and –5 V are provided on CPU board
and VIF board.
[Check procedures]
1.
Open the front panel.
(Refer to the steps 1 and 2 in the section 2-2.)
2.
Confirm that the power supply unit is properly inserted
and securely fixed with four screws.
3.
Turn on the power, and confirm that the CPU RUN
indicator
(*)
on CPU board lights up.
(*) CPU RUN indicator:
DME-3000: ND301(F-1) on the CPU-114 board
DME-7000: D2(J-1) on the CPU-196 board
4.
Remove the five screws (BVTT3
X
5), then remove
the board retainer.
n
Never connect the digital voltmeter without removing
the board retainer. There is danger of causing a short
circuit between the check terminals and the board
retainer.
5.
Connect the digital voltmeter between the check
terminals on each board. Then confirm that the
voltage values of each check terminal satisfy the
specifications.
CN302
CN303
1
A
B
E
F
G
J
K
L
M
N
2
3
4
5
ND301
A side (Component side)
C
D
H
<DME-3000>
CPU-114 board
CN802
2
A
B
E
F
G
J
K
L
M
3
1
A side (Component side)
C
D
H
CN803
D2
<DME-7000>
CPU-196 board
CN1
CN2
A
B
E
F
H
J
K
L
M
3
4
1
2
CN3
A side (Component side)
C
D
G
<DME-3000/7000>
VIF-6/9/6A/9A board
Voltage
Specification
Check terminal
Adjustment potentiometer
+5 V(A)
+5.00
±
0.05 V
DME-3000: CPU-114 board
1
RV1
CN302(+5 V)
↔
CN303(GND)
DME-7000: CPU-196 board
CN802(+5 V)
↔
CN803(GND)
+5 V(B)
+5.00
±
0.05 V
VIF-6/9/6A/9A board
1
RV2
CN1(+5 V)
↔
CN3(GND)
–5 V
–5.00
±
0.05 V
VIF-6/9/6A/9A board
1
RV3
CN2(–5 V)
↔
CN3(GND)
1-11. Confirmation of Secondary Power Supply Voltage
Summary of Contents for BKDM-3020
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