Sharp MZ-3500 User Manual
Page 78
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M7 3500
8 4 System SW1 (DIP SW)
(User operative through the cabinet bottom)
No
Signal name
Function
Position
Polarity
Description
SW1
SW2
ON
OFF
Printer select
ON
OFF
SW2
SWl
ON
ON
CE332P
OFF
ON
MZ1P02
ON
OFF
102824
OFF
OFF
-
#47 pin of MMR
#48 pm of MMR
ON
High resolution CRT (MZ1D02, MZ1D03)
SW3
CRT select
OFF
Medium resolution CRT (MZl 001, M21D06)
#51 pin of MMR
SW4
Choice of decimal
point output
format
ON
A period IS output for a decimal point
OFF
A comma is outputted for a decimal point
#52 pin of MMR
SW5
SW6
SW7
ON
Low state or open ER signal during data output
will result in an error
OFF
The signal ER becomes invalid
ON
RS232C
assign
CD IS high as long as power is on to the mam
unit
OFF
CD goes high only during data output Flowever,
It
would not go high if the echo back function is
on the host side
ON
An error IS cause when the PO signal is high
during data output
OFF
Polarity IS inverted for the above
To CTS, DSR
of the 8251
To CTS of the
8251
ON
FD1
(SW8)
Key shift mode
setup
Normally in capital letter, but in small letter
when shifted
OFF
Normally small leter and in capital letter when
shifted
#54 pin of MMR
(FDD
ON
P/M
(SW9)
Choice of CG
for display
3500 CG will be assigned when the 200 raster
CRT IS in use
OFF
2000 CG will be assigned when the 200 raster
CRT IS in use
Dip switches (A) and (B) located on the PWB are used for
servicing the MFD or for other machine service and there
fore the user is not supposed to use these switches In
addition, these switch must be used when either the CE
330M or 331M IS used as the expansion MFD
DIP SW (A)
No
Stgnal n^ne
1
SEC
(SW1A)
44 pm of MMR
2
FD2
(SW2A)
56 pm of MMR
3
FD3
(SW3A)
58 pm of MMR
4
SRQ
(SW4A)
Bus request
to sub-CPU
DIP SW (B)
No
Signal name
1
SRES
(SW1B)
SUB CPU
reset signal
2
SW2B
SUB CPU BUS
select signal
P/M signal
(To A3 CG)
1
2
3
OFF
OFF
OFF
When SH m use
ON
OFF
OFF
When DH m use
OFF
ON
OFF
—
ON
ON
OFF
—
OFF
OFF
ON
Use of the CE330M as an expansion unit
ON
OFF
ON
Use of the CE331M as an expansion unit
OFF
ON
ON
Check mode * 1
ON
ON
ON
Check mode *2
*1 Test program is loaded and executed
*2 Provided for the test of the MFD interface The
read/write test is carried out for the expansion unit
Used for an individual test of the CPU PWB When these
three switches are turned off altogether, it makes the
sub CPU operated independently To be used in th ON
condition under a normal situation