Dräger Narkomed 2B Service Manual page 15

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NM2B DIAGNOSTICS (continued)
With the exception of the error codes corresponding to AC power and battery
failure, the codes listed in Tables 2-1 thru 2-3 indicate a possible problem in
the NARKOMED 2B processor assembly.
Troubleshooting should begin with a check of the power supply voltages on the
processor board (see Section 3) followed by a check of all connections to the
processor assembly. Refer to Section 4 for removal and replacement procedures
for the field-replaceable assemblies in the NARKOMED 2B.
Rev. L
2-5B