Monitor Section - Panasonic KX-FT63BX Service Manual

6.9. ITS (INTEGRATED TELEPHONE SYSTEM) AND MONITOR SECTION
6.9.1. GENERAL
The general ITS operation is performed by discrete circuit. The alarm tone, the key tone, the calling tone, and the beep are output
from the ASIC IC1 (digital board). During the pulse dial operation, the monitor tone is output from the ASIC IC1.
6.9.2. HANDSET CIRCUIT
1. Function
This circuit controls the conversation over the handset, i.e. the transmitted and received voices to and from the handset.
2. Signal path
Refer to CHECK SHEET (P.65)
6.9.3. MONITOR CIRCUIT FOR EACH SIGNALS
1. Function
This circuit monitors various tones, such as 1 DTMF tone, 2 Alarm/Beep/Key tone/Bell 3 Dummy ring back tone.
2. Signal path
Refer to CHECK SHEET (P.65)
6.9.4. REMOTE RECEIVING
1. Function
This is the parallel connection DTMF signal for the TEL mode between a and b. When the other party is a FAX, the unit changes
to FAX receiving.
2. Signal Path
Refer to CHECK SHEET (P.65)
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KX-FT63BX / KX-FT63BX-W