Sharp ER-A440 Service Manual page 29

If a compare error is found in the check sequence from PASS1 to
PASS6, error print (error code E1) is performed. If there is no error
found to the end of the last address, the operation is completed
normally.
Then the following address check is performed. " " shows a valid
address, and " " shows an invalid address.
In case of an error, error code E2 is printed.
Check Address
200000H
200001H
200002H
200004H
200008H
200010H
200020H
200040H
200080H
200100H
200200H
200400H
200800H
201000H
202000H
204000H
208000H
210000H
220000H
240000H
260000H
7-SEGMENT DISPLAY:
3) Check the following items.
Check the termination print.
4) Test termination
The test terminates after printing the termination printout.
Termination print
E01--- 200
E02--- 200
200
: Error address
[15] RS-232 loop back test
Connect the loop back connector(UKOG-6705RCZZ) to RS232 con-
nector.
1) Key operation
CA/AT
500
2) Functional description
Control signal check
OUT PUT
/ER /RS /DR
OFF OFF OFF
OFF ON OFF
ON OFF ON
ON ON ON
Data communication check
Perform 256-byte branch loop back test between SD and RD.
DATA: $00 - $FF BAUD RATE: 9600 BPS
JOB#201(ER-03RA)
2 0 0
(data check error)
(address check error)
(normal end)
INPUT
/CI /CD
OFF OFF
OFF ON
ON OFF
ON ON
Display:
4) Test termination
This check is terminated automatically.
The test terminates with the test and message printed
Normal end
Error
XX: Error code
E1
E2
E3
E4
E5
E6
/CS
OFF
ON
OFF
ON
5 – 6
5 0 0
RS TEST OK
RS TEST NG ER XX
ER-DR error
ER-CI error
RS-CD error
RS-CS error
SD-RD error (DATA error)
SD-RD error (DATA error/Flaming error)