HA NOSET
Microphone
Earphon e
PCB (KT1 Series telephone)
Basic MF Version
PL A3
PLA1
SKB
f1
1611
LkM
PLB
3
2
1
(701
R1
R18
(621
02
C2
330
iJ--.
03
XL1
C 3(69)
LkN
(601
R7
510
4.7n
5 OUT
2.1V
C?
9
IN
RB 600
B REF
LkC
14
osc
150 (69)
CS
7 MIC
LkR
100n
R 9
1M
Cl+
10n
13
(621
SU
IC1
TMC 1317
RATIO
PLA4
RS
C6
EAR
Vss A
B
C 0 F G Vdd
100
R 10
1
2
3
4
15
16
12
33k
(62)
016
6
S1
S2
S3
S4
SS
S6
S7
SB
S9
S�
SO
S:t:I:
l.r11
.l.r21 .l.[3]
.Ir1+11rs1 .I.r6J 1rn 1ra1.l.r91
.I.
l.101
l.
L k
D
(681
LkH
S12
(601
511/1
100
8
3.6V
S11/2
R21
100
3
IC2
(59)
7 6
4
3.3
or
22 22
R20
30k
R16
1.1k
R17
1.1 k
PLOS
BC1
158)
BC2
1
R19
100
PL04
A
Li necord
Connec t or
c::::I
XL3 Tone
Calle r
not used
5
6
4
(561
SKG
1
(561
2
r
PLH
�
Message Waiting
Numbers in bracket s (
l
refer to explanatory paragraphs
FIGURE 4: Basic MF Version ----- Circuit Diagram
