Koden MDC-5004, Operation Manuals

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Chapter 9 Simple fault diagnosis MDC-5000 Series
0093153004-00 9-2
9.1 No alarm sound
Follow this procedure to troubleshoot no alarm sound trouble.
First, select [SYSTEM] => [SOUND] => [SOUND] and confirm that the status is [ON].
1
Press MENU
key to display “Menu”.
Select [MAINTENANCE] => [BITE] => [ALARM TEST] => [ON], and press ENT key after selection.
2
Please confirm the frequency setting, because it may be hard to hear the alarm sound according to
the setting value.
Select [SYSTEM] => [SOUND] => [FREQUENCY] (Initial setting: 4)
3
Alarm sounds (two times) and alarm display appears at the lower right of the display.
Alarms displayed are [WARNING B 999], [Test alert only.].
4
Confirmation is completed if alarm sounded.
5
Alarm sounds are repeated every 60 seconds.
Select [MAINTENANCE] => [BITE] => [ALARM TEST] => [OFF], and press ENT key to turn alarm
test off.
Note: After running the test and there is still no alarm sound the Operation unit has malfunction.