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R
e moving t he
P
ower Sup ply
B
oard
Figure 5-8 shows the
p
osition
o
f the P ower Supply board and its
fixings :
HOLM
ΡΗ401
MW
P
O
W ER
CO
NNE
QO
R
AND
L
WE
ι A
R
ER
P
OW
ER
WATCH
ACTUATOR
ROD
Τ
FΑΝ 1
'GROUNDING
SCREW
CABLE
/
SUPPORT
ωΡs
NO: 1 400-
1437
P
OW
ER
S
UPPL
Y
B
OA
R
D
ΝΟ :081 10
66504
J
401
ο
J402
J 403
ΙΙΙ
Ι
F
A
N
P
OWER
CABLES
ο
R
emove the P ower Supply board as follows :
Τ
F
AN 2
3 .
R
emove the Grounding Screw
a
nd washer
ο
HP 81 10A Se rvice Guide
Π Π Π Π
ο
1 ο
F
igure 5-8 . Top
V
iew of HP 8110Α with MP U board
R
emoved
Note
Ι
The HP- ΙΒ
b
oard and i ts cable must be removed first to
p
revent
obstruction when removing the
P
ower Supply board .
1 .
R
emove the 2 hexagonal stand-offs securing the HP- ΙΒ
b
oard and
i ts cable to the chassis, and remove the HP-ΙΒ
b
oard
2 .
R
emove the 2 screws securing the
P
ower
I
nlet at the rear chassis .
These screws are
l
onger than t he fixings used
f
or the
b
oards.
N
ote
that the
P
ower Inlet
i
s also connected to the
P
C board
4 .
R
emove the actuator rod
f
rom t he
p
ower switch (see Figure 5-8
for i ts
p
osition) using the
l
ong-nosed pliers
Disassem bly and R eassem bly 5- 1 3
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