Ericsson EF738 Service Manual page 53

Accessories
Vehicle HandsFree Solution HF7600 __________________ 35
6
Introduction______________________________________________35
HandsFree Features _______________________________________35
Echo Cancellation ____________________________________________ 36
Noise Reduction _____________________________________________ 36
HandsFree Components ____________________________________36
Cradle _____________________________________________________ 36
Stick-On Microphone _________________________________________ 36
External Speaker _____________________________________________ 37
Handsfree Unit ______________________________________________ 37
Digital Signal Processor (DSP) _______________________________ 37
Audio-To-Mobile-Station ___________________________________ 37
Audio-From-Mobile-Station _________________________________ 37
Microphone Amplifier ______________________________________ 37
Speaker Amplifier _________________________________________ 37
Music Mute Control________________________________________ 38
Power Supply_____________________________________________ 38
Optional Accessories_______________________________________38
Music Mute _________________________________________________ 38
Goose-Neck Microphone ______________________________________ 38
Data Extension ______________________________________________ 38
External Handset _____________________________________________ 39
Specification______________________________________________39
Handsfree Unit ______________________________________________ 39
Cradle _____________________________________________________ 39
Connectors and Signals ____________________________________40
Holder _____________________________________________________ 40
System Connector _________________________________________ 40
HandsFree Unit ______________________________________________ 40
System Connector J1 _______________________________________ 41
Power Connector J2 ________________________________________ 41
Microphone Connector J4 ___________________________________ 42
Music Mute Connector J5 ___________________________________ 42
Data Communication Connector J6____________________________ 42
Speaker Connector J7 ______________________________________ 42