Expantion Unit Diagnostic - Sharp PC7000A Service Manual

13 EXE'ANTION UNIT DIAGNOSTIC
(1)
General
PC-7000A
PC-7100
The expansion unit diagnostics are the program used to test functions of
this
c~mputer
expansion units.
For the loopback test is conducted with this diagnostic program, it needs
the expansion unit option slot check board in the slot.
(1-1) Test menu display
When the program is started, the expansion unit test menu is displayed along
with the caption (Fig. EXP-l) • This display message is called "Expansion
unit test menu".
SHARP Personal Computer System Diagnostics Level.3
Date Oct/21/'85
Expansion unit [1.0]
(0)
Test all
(1) Test clock line
(2) Test oscillator line
(3) Test external tic line
(4)
Test IREQ, DREQ line
Please input command? ~
***
WARNING
***
The dummy card specially designed must be used as this diagnostic program
is designed for loopback test.
Fig.EXP-l
Exp.unit test menu
(1-2) Test menu choice
Enter the desired test item number in the following manner:
Single digit of [0] thru [4] followed by a carrier return.
Only a carrier return may be entered for the test item O.
The number entered is displayed and the test commences with the carrier
return.
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