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Sharp er-3100 - RAM Memory Chip Operational Check

Sharp er-3100
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Table 13
Test job no.
Test RAM no.
302
RAM3
303 M4
Test results are printed on the receipt and journal at the
ER-31OO cash register.
I
El––––
1
30X
I
Y
30X
(E3]
E2
El––––
z
i
E
——— ——
30X
Normalprintout1 (whentheregisteris
fullyequippedwithRAMs,)
x:
2
or 3
Normalprintout2
Y:
RAMno.of RAM thatis notmounted
(3
or4)
Errorprintout
z:
RAM
no.of mountedRAM (3 or4)
All of the RAMs mounted must be tested.
If an error printout occurs for a particularRAM, recheck to
see if the RAM is in the correct position or if the
connectorsof the RAM PWB unit correctlyconnect to those of
the main PWB.
(If the power is turned on with the M being mounted in the
reverse direction,
it may be damaged.)
0 RAM clearing
40x~~ (X: 1 or 2)
–37

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