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Diagrams; Block Diagram - Sony TAM-100 Service Manual

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2-1. BLOCK DIAGRAM

T70
W
+
ECM
B
MIC
JP100
R
1
MODULER
JACK
D100-103
G
2
TEL
R
1
MODULER
JACK
G
2
LINE
JP101
+
JP90
DC JACK
DC IN 12V
SECTION 2

DIAGRAMS

M2C
VOICE DET
Q70
MUTE
SPEECH
LINE SW
NETWORK
Q110, 111
Q120, 121
BRANCH
DET
Q112, 113
+B
RINGER DET
ZD100, 101
D104
PH100
RINGER DET
+5V REG
1
2
+5V
U90
OFF
SW1
AUDIBLE
ON
INDICATOR
ANN
ONLY
2
SW2
RINGER
5
SELECT
TS
– 5 –
U1
DSP
TI -
76
PD1
59
77
TI +
VREF
SPOI +
78
80
58
PD2
+
60
PD0
54
PB2
A14/P12
22
A12/P10
24
PB1
55
28
A8/PJ0
PB0
56
PD3
57
PA0
48
PA2
46
PA3
45
27
A9/PJ1
PA4
44
PB7
49
PB4
52
A3/PM3
33
A0/PM0
36
A7/PK3
29
30
A6/PK2
PB3
53
WE
3
32
A4/PK0
CAST
A5/PK1
PC3-0
10
31
RAS
OE
61
IORQ
MREQ
64
PEI
PEO
69
RD
WR
70
TAM-100
U80
SPEAKER AMP
1
BIAS
SP901
4
5
SPEAKER
3
LED1-4
ANSWER ON/OFF
MAIL BOX1-3
LED INDICATOR
U2
FLASH MEMORY
CS
4
5
SK
6
D1
D0
7
PUSH BUTTON KEY
TIME
MEMO
ERASE
ANSWER
ON/OFF
SET/REC
MAIL BOX
3
GREETING
MAIL BOX
VOL +
2
REPEAT
MAIL BOX
SKIP
VOL –
1
LED5
88
7 SEGMENT LED

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