Read Sharp ER-A771 (serv.man6) Service Manual online
ER-A771VI
Removing and replacing the LCD unit
– 3 –
8. Removing and replacing the LCD
unit
1) Remove the four fixing screws
3
of the display unit from the top
cabinet
1
.
Fig.5
2) Remove the two fixing screws
4
of the LCD unit in the display unit.
3) The LCD unit is assembled with seven pawls. Remove the pawls in
the order of
a
to
g
as shown in the figure.
Fig.6
9. Expansion RAM Board: UP-S02MB2
1) Remove the top cabinet.
2) Install the Expansion RAM Board
1
to the Option RAM connector
on the Main PWB.
a) Insert the Expansion RAM Board aslant into the option RAM
connector.
b) Push the RAM disk unit Expansion RAM Board is locked by the
arms of option RAM connector.
*
It is possible to install one UP-S02MB2.
*
Be careful of the direction of Expansion RAM Board to be
installed. Install the Expansion RAM Board with the notch
part of the PWB (Figure A) come right. Installing the Expan-
sion RAM Board in the wrong direction may damage the con-
sion RAM Board in the wrong direction may damage the con-
nector part or make the machine out of order.
Fig.7
3) Removing the Expansion RAM Board.
a) Open the arms of option RAM connector right and left.
b) The Expansion RAM Board will be lifted automatically.
10. RS232 I/F: ER-A7RS2 & EFT I/F:
ER-02EF2
1) Remove the rear cover.
2) Remove the two screws
1
from the shassis.
3) Insert the I/F PWB
2
to the connector.
4) Fix the I/F bracket to the shassis with screws
1
.
5) Install the ferrite core
3
.
2
3
3
1
LCD cabinet hear side
c
b
d
e
f
g
a
4
Make sure to save data before installing this option
A
1
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