Sharp er-3100 - RAM Memory Chip Installation

7. RAM MEMORY CHIP (ER-46PL1)
7.1 Outline
The ER-3100 can be equipped with up to 990 PLUS by installinga
maximum of two ER-46PLI RAM memory chips.
The PLU capabilityof the ER-31OO can be expanded up to 628 PLUS
(up to 990 PLUS including standard PLUS). The first 200 PLUS can
be entered directly by manipulating the PLU level shift key.
The remaining (790 PLUS) can be entered on the code entry system
(which require the entry of correspondingPLU codes and
depression of the PLU key).
The number of additionalPLUS depends on the number of RAM memory
chips installed.
See Table 12 below.
Table 12
Stock control
No
Yes
StandardRAMs ~ _ 362 ~ - ~14
(RAMl,RAM2)
Optional RAM
I
memory chip
\363 -
676 I315 - 586 I
(RAM3)
Optional M
I
memory chip
677 -
990 587 - 858
(RAM4)
I
Captions in parenthesesare printed on the RAM PWB.
When installinga single chip, be sure to mount it in the RAM3
socket, not in the RAM4 socket.
7.2 Installationprocedure
1.
Prior to installingthis option,
save the data by using the S10
interface for memory protection.
See Section 8
“PRESETS LOADER”
for the data saving procedure.
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