Npaq MR Hardware Manual
Maintenance
4.1. Power Board Assembly
The figure below highlights the important components located on the power board. The Npaq MR is factory
wired for either 100/200 VAC or 115/230 VAC input voltage.
D A N G E R : Always disconnect the Mains power connection before opening the Npaq MR
chassis. Fuses must not be changed with Mains power applied to unit.
Board Assembly
Drawing Number:
690D1645, Rev. -1
BW
6
+
+
BW
4
T
B5
1
J1
D
S1
1
TB3
1
TB4
1
T
B6
1
TB1
1
TB2
B
A
S2
MATE:
ECK00213
MATE: ECK01577
MA
T
E
:
E
C
K
0
0
2
1
3
MA
T
E
:
E
C
K
0
1
5
7
7
MA
T
E:
EC
K0
1
5
7
7
MA
T
E:
EC
K01
5
7
7
MATE: ECK01577
MATE:
ECK00213
B
A
S1
1
T
B7
1
T
B8
1
BW
5
C2
C1
BR2
BR1
F
3
3
ASB
3
AG
F
4
4
ASB
3
AG
F
1
3
ASB
3
AG
F
2
4
ASB
3
AG
T
R
1
5
O
H
M
T
R
2
5
O
H
M
K1
Figure 4-1:
Power Board
Table 4-1:
Component Select
Component
100/115 VAC
200/230VAC
Bipolar
Unipolar
SW1, SW2
B
A
-
-
BW4, BW6
-
-
Factory Select
Installed
BW5
-
-
Installed
Factory Select
60
Chapter 4
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