UP-3300 (serv.man17). Option Installation Manual - Sharp EPOS Service Manual (repair manual). Page 6

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5) Remove the LCD 
M
.
a) Remove the five Screws 
N
.
b) Remove the LCD plate 
O
.
c) Remove the LCD PWB unit 
P
.
8. Replacing the LCD unit
Install the LCD unit in the reverse order of removing.
Before installing, make sure that each cables are connected securely.
9. Expansion RAM Board :
UP-P02MB2
Make sure to save data before installing this option
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-P02MB2.
*
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
connector part or make the machine out of order.
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-A7RS & EFT I/F:
ER-02EF
1) Remove the rear cover.
2) Remove the rear display.
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
.
6) Install the Nylon band 
4
 to the cables.
17
20
18
19
Touch panel
18
18
18
1
A
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