Sennheiser HMDC 322 Service Manual download pdf (Page 68)

Problem Possible cause and what to do

Active noise compensation but

very low volume communication

The volume control is set too low.

왘 Check the volume setting of the headset.

The headphone connection has been pulled out (except HMEC 305, HMEC 305-C and

HMEC 306).

왘 Check to see if the headphone jack plug is correctly connected.

Active noise compensation but

reduced intelligibility

The microphone connection has been pulled out (except HMEC 305, HMEC 305-C and

HMEC 306).

왘 Check to see if the microphone jack plug is correctly connected.

Communications in one ear only

(only HMEC 300, HMEC 302,

HMEC 306 and HMEC 306)

You are using a stereo intercom system but the headset is set to mono operation.

왘 Set the Mono/Stereo switch to “Stereo”.

You are receiving a mono source but the headset is set to stereo operation.

왘 Set the Mono/Stereo switch to “Mono”.

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Sennheiser HMDC 322 Service Manual Page 68