How it Works
Sharp
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PC7100
Service Manual
92 pgs3.94 Mb0

Sharp PC7000A, PC7100 Service Manual

SHARP
PC-7000A
PC-710Q
SERVICE
MANUAL
CODE:
OOZPC7000ADIA
FOR MODEL PC7000Al7100
__
-----------------------CONTENTS------------------------~
GENERAL.........................................................
1
DIAG NOSTICS
LOADER.
..
. .
.. .. .. ..
... . ..
. .
.. . ...
..
. .
....
..
.... . ..
3
MEMORY
DIAGNOSTICS.
.. .. ..
....
.. .. ..
. .
....
...
. . .
.. ..
... . ...
. .
..
5
KEYBOARD & SPEAKER
DIAGNOSTiCS...............................
8
L.C.D.
DIAGNOSTIC
................................................
8
REAL
TIME
CLOCK DIAGNOSTICS
...................................
10
SERIAL
I/O DIAGNOSTiCS
..........................................
12
FLOPPY DISK DIAGNOSTICS
........................................
14
PR
INTER DIAGNOSTIC
.............................................
20
COLOR
CRT ADAPTER DIAGNOSTiC
.................................
23
MONOCHROME CRT ADAPTER DIAGNOSTiC
..........................
24
MODEM CARD DIAGNOSTIC
.........................................
26
EXPANTION
UNIT
DIAGNOSTIC
.....................................
29
HARD DISK DIAGNOSTIC
...........................................
39
SCREEN FORMAT
..................................................
57
SHARP CORPORATION
DIAGNOSTIC
1 GENERAL
(1)
Introduction
This
diagnostics
disk
serves for adjustment, aging, field
maintenance
and
repair
of
this
personal
computer. Although
the package
employs
an
interactive entry
system
to
prevent
the
personal
computer from malfunctions
such
as
miss
opera-
tion,
be
very
careful
in
handling this diagnostics package.
The diagnostics package
is
supplied
in
the form
of
a floppy
disk which
is
labeled "DIAGNOSTICS FOR PC7000A/
7100", The disk incudes the following diagnostics
programs
in
accordance with devices. These diagnostics programs
programs are loaded by
the
DIAG LOADER program
described
in
item
2.
SHARP
Ver.
DIAGNOSTICS
FOR
PC7000A/II
(LEVEL
3)
7100
I
I
I
rf\
File
name
Device
name
Standard PCMEMDIG
·
.....
Memory
PCRTCDIG
.......
Real
Time Clock
PCPRTDIG
·
......
Printer
PCKEYDIG
.......
Keyboard, Speaker
PCFDDDIG
.......
Floppy Disk Drive
(s)
PCSIODIG
·
......
Serial
I nterface Adaptor
PCLCDDIG
.......
Liquid Crystal Display
Option
PCCRTDIG
.......
Color CRT Adaptor
PCMONDIG
·
.....
Monochrome CRT Adaptor
PCMDMDIG
·
.....
Modem Card
Expansion PCEXPDIG
·
......
Expansion Unit
PCDSKDIG
.......
Hard Disk Drive
(s)
(2) Notation in Manual
~
represents the
content
of
display and a digit being
entered. A message
is
shown
as
II
".
A key that
the
operator presses
is
depicted
as
[[
1].
For
example,
a
message
is
surrounded by a
set
of
double-quotation marks
like
"Mr. Yamada
is
fine."
In
case
of
key
entry,
the
sentence
'Press the ESC
key.'
is
shown
in
the
manual as 'Press [[ESC]] '.
(3) Key
Entry
(3.1) Decimal Code
Entry
[0]
to
[91
can be entered by using the numeric keys