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Error display
“OK” appears for normal memory IC test. For fault NG (No
Good) and asterisk (*) appear next to ROM/RAM number.
Table 3 Error number display and meaning
Error
number
Reason Circuit board
to check
000 Input voltage JCPA, JIFA
001 Overheated transducer element JLGA, JCPA, JIFA*
002 Abnormal Tx B voltage STXA, UPW, JCPA
003 Tx voltage of beam 1 JCPA, STXA
004 Tx voltage of beam 2 JCPA, STXA
005 Tx voltage of beam 3 JCPA, STXA
006 Tx current of beam 1 JCPA, STXA
007 Tx current of beam 2 JCPA, STXA
008 Tx current of beam 3 JCPA, STXA
100 External position data JCPA, JIFA
101 External speed data JCPA, JIFA
102 External time data JCPA, JIFA
103 External depth data JCPA, JIFA
104 Heading data JCPA, JIFA
105 Heading error angle JCPA, JIFA
106 Water temperature data JCPA, JIFA
200 External KP input interval JCPA, JIFA, abnormal external KP
interval
201 Depth sensor input JLGA, JCPA, JIFA,
faulty temperature sensor
202 Inclinometer roll signal JCPA, JIFA, no inclinometer data
203 Inclinometer pitch signal JCPA, JIFA, no inclinometer data
* Abnormally high Tx voltage, abnormally low transducer
impedance, too high Tx duty, faulty temperature sensor (faulty
element), high water temperature, and other factors may also
cause this error display.