Canon A-200 series Service Manual page 126

Description of the Program
When the data stored in the disk has been transferred into RAM, the computer begins the
internal ROM check. If any mulfunction is detected, the following message will appear:
ROM check sum error! Cannot continue !
then the computer will "halt': and give no further information to you. When this check is completed
successfully, the message:
Canon Personal Computer DIAGNOSTIC
(C) Copyright Canon Inc. 1984, Ver 1.0
Press any key to start
will appear on the screen.
Pressing any key allows you to change the information on the screen and then the computer
asks the configuration of the computer under test like:
SYSTEM CONFIGURATION
System board
Color/graphics adapter
2 disk drive(s) 256 KB memory
If OK press [Y]
if not press [N]
If these items fit your computer actually, press Y key and then the screen will change its indica­
tion to Menu. Or, if not, press N key. The A-200 will store the data temporarily into RAM and also
returns to Menu.
MAIN MENU
I-AUTO CHECK
2-EACH CHECK
3-LOG
4-COPY
5-EXIT DIAGNOSTIC
Select the number in this menu.
1-AUTO CHECK: When you choose this item, following test will be executed sequentially.
* RAM R/W check
* Disk RIW check
* Display monitor check
*
Printer check
* Returns to MAIN MENU
First, the following message will appear:
PREPARATION OF AUTO CHECK
Insert scratch disk(s) in drive A (and B) for disk check.
Press any key to start.
Insert one or two formatted disk(s) into the drive(s), and press any key to start up this program.
The messages for each check point will be displayed sequentially. For detailed description con­
cerning each check point, refer below.
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