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• IC Block Diagrams
IC103
MC34118DW (BASE MAIN BOARD)
IC401
10497-15 (HAND MAIN BOARD)
IC701
10497-15 (BASE MAIN BOARD)
IC104
MC34119DR2 (BASE MAIN BOARD)
IC502
S-24C02AFJ-TB (HAND MAIN BOARD)
IC951
S-24C02AFJ-TB (BASE MAIN BOARD)
+
8
7
6
5
4
3
2
1
_
+
_
VO2
CD
CF 2
CF 1
V in
GN
D
Vcc
VO1
BIAS
CIRCUIT
2
1
RLO1
TLO1
TLI1
RLI1
CPR
GND
RXO
RXI
RLI2
RLO2
TLO2
TLI2
CPT
VB
FI
4
VCC
3
CD
FO
+
–
+
–
5
9
8
7
6
HTI
TXO
TXI
HTO+
HTO–
10
12
11
14
13
27
28
25
26
24
20
21
22
23
19
17
18
15
16
MUT
MCO
MCI
CT
VLC
VR
VCC
HYBRID
AMP 2
HYBRID
AMP 1
MIC
AMP
VREF
+
–
VR
FILTER
AMP
COMPARATOR
AGC
BACKGROUND
NOISE
DETECTOR
VR
LEVEL
DETECTOR
LEVEL
DETECTOR
COMPARATOR
ATTENUATOR
CONTROL BLOCK
BACKGROUND
NOISE
DETECTOR
DIAL
TONE
DETECTOR
LEVEL
DETECTOR
LEVEL
DETECTOR
RX
ATTEN-
UATOR
TX
ATTENUATOR
9
10
16
15
14
13
12
11
17
19 18
20
21
22
23
24
VOXRNT
VOXSND
AVDD
LINE-IN
AVSS
MICIN
RBIAS
NC
REFCNTL
XCLKO
NC
ICLK
FRAM
SPKPO
SPKMO
LINEO
8
VCC
7
TEST INPUT
6
SCL
5
SDA
1
NC
2
NC
3
NC
4
VSS
START
STOP
LOGIC
CONTROL
LOGIC
START CYCLE
H.V. GENERATION
TIMING
& CONTROL
E PROM
32 x 32
2
32
XDEC
INC
LOAD
5
R/W
PIN
2
8
D
OUT
CK
32
WORD
ADDRESS
COUNTER
YDEC
D
OUT
ACK
DATA REGISTER
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QQ 376315150
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9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299