Service manual

REPAIR
SERVICE MANUAL
Troubleshooting
3-15
7.2. Self Print Mode
(1) From the Main Menu, press CODE + SHIFT + RETURN. The SELF PRINT display
appears, with the SERIAL NO. input pop-up screen.
(2) Enter the unit serial number and press RETURN (or press RETURN without entering
a number).
(3) A sum check of the MAIN RAM, MAIN ROM and DICTIONARY ROM is then
performed.
SELF PRINT
VIDEO RAM Checking... OK. NG.
MAIN ROM
DICTIONARY ROM OK.Checking... NG.
Checkin
g
... OK. NG.
(NORMAL) (ABNORMAL)
CG ROM Checking... OK. NG.
MAIN RAM Checking... OK. NG.
*****
*****
Fig. 3.4 Self-Print Pattern
NOTES
•
"OK" is displayed if the checked item is normal ("NG" if there is an error). If the result of
all checks is "OK" the carriage is returned and, the self-print ("all character") test is
starts.
•
If there are any errors in the sum check, self-printing will not start. The buzzer will not
sound, but the SELF PRINT screen will remain. It will not be possible to proceed with
any operation (cycle the power switch to reset the system).
•
The following print format settings are in effect for the test:
Font type: Brougham
Font size: 12 point
Type style Normal
Line space: Auto
Left/right margins: 1 - 7.4 inch (with CSF)
Tab setting: None