Hitachi 902 Service Manual page 22

Alarm
Alarm
Control
No.
1441 to ADC1?
1444
1451 to ADC2?
1453
1461 to ADC3?
1462
1471 to BARCODE1
4506
Sub-
Category Level
code
47 4 WARNING
48 1 WARNING Refer to alarm code 47-1.
48 2 WARNING Refer to alarm code 47-2.
48 3 WARNING Refer to alarm code 47-4.
49 1 WARNING Refer to alarm code 47-2.
49 2 WARNING
50 1 to 35 WARNING Data reception from the
Description
•
A/D count for 2 V is
abnormal.
•
A/D count for 6 V is
abnormal.
Normal count for 2 V
(7547 < count value <
8341)
Normal count for 6 V
(22460 < count value <
25023)
(This is checked at
measurement of
reference voltage.)
Reference voltage for
ISE: 2 V and 8 V
Normal count for 2 V
(7547 < count value <
8341)
Normal count for 8 V
(30184 < count value <
33364)
Normal offset value
(22811 < count value <
40547)
•
A/D count for 2 V is
abnormal.
•
A/D count for 6 V is
abnormal.
Normal count for 2 V
(12452 < count value <
13763)
Normal count for 6 V
(37356 < count value <
41288)
barcode reader has not
been completed before ID
reception time-out.
(Sub-code indicates the
position No. on disk.)
2 - 10
(cont'd)
Remedy
Same as above
Replace ISE AMP PC
board.
Same as above
Same as above
Replace EMIO100
PC board.
Same as above
Replace the label or
barcode reader.