Panasonic AUTO-LOGIC KX-T4330 Service Manual And Technical Manual page 51

Telephone equipment
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KX-T4330
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m@ TAPE TRANSPORT CONTROL
Timing Chart
1 PLAY REC MODE
Circuit Operation:
STOP
The timing for the plunger and motor which are used
(Forward Rotaiont
a
to operate the deck is as shown in the timing chart.
(Reverse Rotation)
FF MTR ——_____-_----
PL-T
---
PL-L
200 ms
200 ms
2 REW MODE
PLAY. AT
ee
FP MIR saa
7
2
Seer
Pil eee
3 FF MODE
PLAY MTR ———————_—~——_ - --
RAT ee
te
FFMTR ——S
PL-T ———___—_—_- --
PLL ———_______ ---
100 ms~1 Sec}
STOP
Fig. 41
@ REMOTE SIGNAL DETECTOR CIRCUIT
Circult Operation:
A remote control signal is activated by a dual-tone multiple-frequency (DTMF) signal.
The remote signal output from the telephone line is amplified by IC5, via Q6. And it is input to Pin @ of IC8 after it passes through the
bandpass filter.
The DTMF signal is input to C8 and is changed to a 4 bit code that is input to IC9.
Circult Diagram
R78
C63.-«~T104
To Tel Line
7
T
"R77
IC8
Vee
1C9
R80
+ {C169
c7a
Q52
EST
Rai
C166 R187
Fig. 42

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