Chapter 4 Troubleshooting and on-board repair MDC-2900 Series
4-10
0092629012-07
4.3.2.3 Other faults (Display unit)
Other faults
LCD unit failure
Is the TT (ARPA)
function normal?
Is the AIS function
normal?
Is the MAP function
normal?
Is the screen display
normal?
Does the sweep rotate
normally?
Go to
[4.3.2.13 Rotary
abnormality]
in page 4-19
END
Yes
No
Go to
[4.3.2.15 TT (ARPA)
abnormality]
in page 4-21
Go to
[4.3.2.17 No display of
AIS]
in page 4-23
Go to
[4.3.2.16 Map display
abnormality]
in page 4-22
Is there a part displayed
in white or black on the
screen because any
signal is not displayed?
Is there a part not
normally displayed on
the screen?
After "ALL RESET" did
it become normal?
Logic PCB failure
After reset, did the
function become
normal?
Please inquire to a
Koden electronics
Co.,Ltd.
Yes
No
No
Yes
Yes
No
No
No
No
No
Yes
Yes
Yes
Yes
