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KX-F1200
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3) Electronic Volume
TAM volume (ICM play) can be switched with the volume key on the operation panel.
OFF ¢_ HIGH (9 steps)
Switch analog SW IC10, IC11 and transistor Q18 ON/OFF. Concerning control please refer to the table.
TAM
Electronic Volume Control Table
VOL5 VOL6 VOL7i VOL8
VOL9 TAMSF
Loud
8
0
0
0
7
1
o
o
6
0
1
0
5
1
0
1
4
1
1
1
3
0
0
0
2
0
1
1
1
1
1
1
Quiet OFF
1
1
1
0
0
0
0
0
1
1
1
1
0
o
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
0
4) Voice Synthesizer
IC
This IC is a custom IC.
When CPU command is generated, voice synthesizer plays the words from word list.
There is only one pattern of message as follows.
"Hello, no one is available to take your call now, and our machine is busy on another call, please call back in a few minutes. l-hank
you."
Normally, this message is played when receiving call in TAM or FAX mode during one line is in use.
Also the above message is output to the speaker in service mode 805, and send it to Line (Linel only) in service mode 806.
(Signal path)
(1) Line out (ex. Line1)
IC6 _)--"
R254 _ R255 _ C187 --, IC20 (6 -" 7) _ C192 _ IC3 [9 _ 15] -* NCU Section --, Line1
(2) Speaker out (Service mode only)
IC6 _)-*
C181 --_ Q19 (C --- E) -_ R240 -* C180 --_ IC21 (2 --_ 1) -, R244 ---, R250 -* C182 --, IC20 (2 -* 1) -, O184 -* R252 _,
IC12 (4 --- 5, 8) --" Speaker
- 138-
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