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Table 3-4 Momentary Messages (Continued)
Message
No Data Card Present
A Data Card is not in the M3500B/
M5500B.
Key Inactive
The key pressed is currently inactive (i.e.
AED Mode).
Stop Pacer
are being delivered.
Table 3-5 Audio Tones
Tone
At power on, a low tone of approx. 1
second followed by a series of
higher pitched, short tones.
At power on, a continuous beep of
about 7 seconds.
At any time, a repeating tone that
alternates between two frequencies.
M3500B/M5500B Service Manual
Possible Cause
Sync
Pace
and
are inactive in
Mode
is pressed while pacing pulses
Audio Tones
The M3500B/M5500B emits tones to alert you to its status.
Meaning
Normal power on sequence.
System failure - processors not
communicating.
The unit emits this tone beginning 1
minute before shutdown due to low
battery charge.
Momentary Messages
Corrective Action
Turn the M3500B/M5500B off and insert a
Data Card prior to the first event for the
patient.
Use the appropriate mode for the key.
Stop pacing before changing the pacing
mode.
Suggested Action
None needed.
Turn power off, then on. If problem
reoccurs, replace Control PCA.
1. Connect a Power Module or
replace the battery with one that
is fully charged.
2. Replace Power Module.
3. Service the unit. See "Trouble-
shooting" on page 3-1.
3
3-17
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