10. MAINTENANCE, TROUBLESHOOTING
10-6
Range changed
but radar picture
does not change.
1) Faulty RANGE knob.
2) SPU board
3) Video freeze-up
1) Try to rotate the RANGE
knob. If you can not operate
the RANGE knob, replace
the knob.
2) Replace SPU board.
3) Turn off and on radar.
Range rings are
not displayed.
1) Adjust their brilliance on the
[Brill/Color] menu.
2) SPU Board
1) Replace associated circuit
board if unsuccessful.
2) Replace SPU Board.
Problem
Probable cause or check
points
Remedy
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