Furuno GP-90 Service Manual page 20
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Also See for GP-90:
- Installation manual (38 pages) ,
- Installation manual (37 pages) ,
- Operator's manual (99 pages)
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Symptom: Abnormal display
Flow 4
Brilliance?
(Bril setting: 4)
Light
Key beep?
(No picture)
Key beep
Output from J10
on NP Board?
Normal
Defective LCD Unit
Dark
Output from J4 on
NP Board?
0 VAC
No Key beep
See Flow 5.
Abnormal
Defective NP Board
17
4. Troubleshooting
about 200 VAC
Defective LCD unit
Defective NP Board
- Quick Links:
- Antenna Unit
- Adjustment
- Battery Replacement
- Procedure
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Table of Contents
Troubleshooting
