Panasonic KX-T7456 - Digital 24 Button Speakerphone Display, Specifications

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MI 49
Analog
input
Analog
Input terminal of TX microphone signal.
Either this signal or the signal supplied to pin 47 (HI) is
AD converter.
AG3 50
--- Power
supply, etc.
Ground terminal of analog circuit.
A5V4 51 5V power terminal of analog circuit.
AP2HO 52
Analog
output
Analog
Output terminal of microphone amplofier H2.
Connect the capacitor of 0.1 F to this terminal to cut
AP2HI 53
Analog
input
Inverting input terminal of microphone amplofier H2.
Connect the capacitor of 0.1 F to this terminal to cut
AP1HO 54
Analog
output
Output terminal of microphone amplofier H1.
Connect the capacitor of 0.1 F to this terminal to cut
AP1HN 55
Analog
input
Inverting input terminal of microphone amplofier H1.
Connect to the handset.
AP1HP 56
Analog
input
Analog
Non-inverting input terminal of microphone amplofier H1.
VREFM 57
--- Power
supply, etc.
Reference voltage terminal of microphone amplifier.
Connect the capacitor of 40 F between this terminal
56 (MCG).
AG4 58
Ground terminal of the analog circuit.
APMO 59
Analog
input
Analog
Output terminal of microphone amplifier.
Connect the capacitor of 0.1 F to this terminal to cut
APMN 60
Analog
input
Non-inverting input terminal of microphone amplofier M.
5.3. IC5
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