ER-A771 (serv.man6). Option Installation Manual - Sharp EPOS Service Manual (repair manual). Page 3

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ER-A771VI
Replacing the top cabinet
– 2 –
4. Replacing the top cabinet
Install the top cabinet in the reverse order of removing. Before installing,
make sure that each connector is connected securely.
5.  Removing the Noise filter PWB,
Transformer and AC cord
1) Remove the two screws 
1
.
2) Remove the AC cord cover 
2
.
3) Remove the screw 
3
 and the earth wire 
4
.
4) Use a minus screwdriver to loosen the AC cord fixing screws (2
pcs.) of the Noise filter PWB.
5) Pull out the AC cord 
5
 from the Noise filter PWB.
6) Remove the connector 
6
.
Fig.4
6.  Replacing the Noise filter PWB and 
Transformer
Install the power supply unit in the reverse order of removing. Before
installing, make sure that each connector is connected securely.
7.  Removing and replacing the 
keyboard unit
The keyboard unit is fixed to the top cabinet with screws.
Fixed
4
3
5
6
2
1
*
When connecting the AC cord to the power supply unit in assembly,
tighten with the torque of 3 kg/cm 
m
 1 kg/cm
Screw parts code
Boss 
No.
Fixing position
XEBSD30P10000
1
Earth wire - PWB angle - Keyboard unit -
Top cabinet
3
Earth wire - PWB angle - Keyboard unit -
Top cabinet
5
Earth wire - PWB angle - Keyboard unit -
Top cabinet
7
PWB angle - Keyboard unit - Top cabinet
9
PWB angle - Keyboard unit - Top cabinet
H
Holder - PWB angle - Keyboard unit - Top
cabinet
I
Earth spring - PWB angle - Keyboard unit -
Top cabinet
L
PWB angle - Clerk cover - Top cabinet
M
PWB angle - Clerk cover - Top cabinet
O
PWB angle - Keyboard unit - Top cabinet
Q
PWB angle - Keyboard unit - Top cabinet
LX-BZ6782BHZZ
R
Holder - PWB angle - Keyboard unit - Top
cabinet
S
Holder - PWB angle - Keyboard unit - Top
cabinet
21
20
19
18
17
16 15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
CKDC PWB ANGLE
22
23

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