Sharp MZ-350C Service Manual page 88

M Z 3500
Type of error
(l) MDF 1/F error
ON OFF
1sec. 4sec.
(2.1 SDO read/write error
(D SDO bank alternation error
® AD2 bank alternation error
© AD3 bank alternation error
® ROM sum-check error
© Option RAM read/write error
(Indicated even when the Option RAM is not in use)
/5s Option RAM bank alternation error
NOTES:
1. The MFD I/F will not be tested, if there is no MFD I/F
connected or when the diskette was not inserted in the
slot of the drive unit No.2.
2. ROM test will not be performed, unless it is a ROM
based machine.
2) Loacing check program
The test program is loaded from the specified track and
sector to Start executing the test.
[Procedure]
(1) Set dip Switches on of the 4 bit unit located in middle
of the front side of the board äs illustrated at the right.
No.
POSITION
1
OFF
2
ON
3
ON
4
ON
j
,2) Set dip switches on of the 2 bit unit located on the
front side of the board.
(3) Insert the media into a slot of any diskette drive unit.
(4) Turn the power on
(5) Load the program from the specified track and sector,
to start execution of the test program.
[Conditions required for the drive unit and media]
(1) Use the FD-55B for the diskette drive unit.
(2) Program may exist in any sector of any track, provided
that it is Written in continuous sector within a same
track.
(Max. 256 bytes x 16 sectors = 4K bytes)
(3) Data descrived next should have been Written on
Sector 1 of Track 0.
(4) Program loading address must be 4800H and higher
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