5.2 Troubleshooting Matrix table
23
9
1
✩
8
!
✩
!
1
2
7) Incorrect target bearing.
8) Poor sensitivity.
9) Keyboard is pressed but no response.
7
1
6
!
✩
1
5
✩
1
2
4) Marks and legends do not appear.
5) Marks and legends appear, but no
noise nor echo.
6) Marks, legends, and noise appear but
no echo.
4
1
3
2
1
✩
2
1
!
1) Power cannot be supplied.
2) Power is supplied but nothing
appears on LCD.
3) Scanner does not rotate.
1
2
1
Symptom
Check point
DU board (03P9320)
PNL board (03P9356)
LCD display
(EW50300FDWR)
IF board (03P9321)
MD board (03P9270)
INT board (03P9322)
Magnetron
MIC
Motor and belt
Fuse (5A)
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