Furuno FR-8122 EN User Manual
Page 115
6. MAINTENANCE & TROUBLESHOOTING
6-7
Interference rejector
is not working (inter-
ference rejection
level not displayed)
1) SPU Board
1) Replace SPU Board.
Echo stretch is not
working (Neither
ES1, ES2 or ES3 is
displayed)
1) SPU Board
1) Replace SPU Board.
Range rings are not
displayed
1) Adjust their brilliance on the
Brill/Color menu.
2) SPU Board
1) Replace associated circuit board if unsuc-
cessful.
2) Replace SPU Board.
Advanced-level troubleshooting
Problem
Probable cause or
check points
Remedy
This manual is related to the following products:
See also other documents in the category Furuno Sports and recreation:
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- FR-8062 (2 pages)
- FR-8122 (56 pages)
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- 520 (73 pages)
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- FR-2105 (197 pages)
- FMD-8010 (50 pages)
- GD-1900C (260 pages)
- Black Box Video Sounder FCV-1200BB (2 pages)
- FR-1505 MARK-3 (4 pages)
- 1762 (252 pages)
- NAVnet DRS12A (44 pages)
- FAR-2127 (136 pages)
- FAR-2137S (8 pages)
- FA30 (6 pages)
- Satellite Compass SC-50/110 (30 pages)
- 1715 (2 pages)
- 1715 (48 pages)
- 1734C (55 pages)
- GD-1720C (53 pages)
- Mu 120c (2 pages)
- NAVNET GD-1920C (239 pages)
- CI-80 (41 pages)
- FAR-28x7 Series (299 pages)
- FAR-2837S (8 pages)
- BBWX1 (2 pages)
- 851 MARK-2 (37 pages)
- 851 MARK-2 (47 pages)
- BBFF3 (1 page)
- CSH-53 (106 pages)
- CSH-53 (108 pages)
- FCV295 (53 pages)
- FR1500 Mk3 (79 pages)
- FI-50 Series (2 pages)
- FCV-1150 (32 pages)