Read Sharp XE-A301 (serv.man3) Service Manual online
XE-A301V
DIAGNOSTIC PROGRAM
– 13 –
11) FLASH ROM TEST
1
Key operation
130
3
2
Test procedure
The test program checks that the checksum of the flash ROM
(BANK0F80000H ~ FFFFFH).
(BANK0F80000H ~ FFFFFH).
The lower two digits of the checksum should be 10H. (pending)
3
Check:
The completion print.
4
End of testing
The test will automatically be terminated and the printer prints as fol-
lows:
12) AD CONVERSION PORT TEST
1
Key operation
160
3
2
Test procedure
The test program displays the voltage of each AD conversion port.
13) RS232C TEST
Install the RS232C loopback connector.
1
Key operation
500
3
2
Test procedure
The test program checks the control signals.
Data communication check
A loopback test of 256-byte data between is performed.
DATA: $00 - $FF BAUD RATE :9600 BPS
3
Check:
The completion print.
4
End of testing
3. KEY CODE TABLE
When the test ends normally:
130
ROM
********
(Model name)
********
(Version)
When the test ends
abnormally:
abnormally:
E – – ~ – –
130
ROM
********
(Model name)
********
(Version)
OUTPUT
INPUT
/ER
/RS
/DR
/CI
/CD
/CS
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
ON
ON
ON
OFF
ON
ON
OFF
OFF
ON
ON
ON
ON
ON
ON
RCPT/PO
R O M
F L A S H
P G M
OP display
1 3 0
RCPT/PO
T M
P G M
OP display
Display
1 6 0
=
V R F
P G M
OP display
1 6 0
=
V P T E S T
P G M
OP display
1 6 0
=
End of testing
RCPT/PO
Completion print
RS TEST
OK
Error print
RS TEST
**NG**ERxx
xx
Contents of error
01
ER DR error
02
ER CI error
03
RS CD error
04
RS CD error
05
SD RD error
DATA error
06
SD RD error
DATA error/framing error
R S
T E S T
P G M
OP display
5 0 0
2 3 2 C
RF
JF
033 037
032 048
038 054
039 055
052 132
050 130
053 133
128 129
118
116
114
117
113
112
002 005
017 001
016 000
006
007
003 004
084 068
082 066
085 069
081 080
102 103
146
149
065
086
087
018
083 067 147 148
145
064
070
071
CHECK SUM : 4053
XE-A301
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