SPP-A946/A947
53
54
81
3
99
94
38
95
4
61
3
62
2
58
39
98
97
96
29
91 – 84
21, 23, 19, 17, 18, 22, 20,
26, 24, 14, 16, 15, 25, 27
63
–
70
71
–
83, 76
16 – 19, 22 – 25
FLASH MEMORY
IC203
X201
4.081408MHz
D0 – D7
D0 – D7
XO
XI
WP
ANS LED
RE
WE
ALE
CLE
CS
WP
RE
WE
ALE
CLE
CS
MAIL1 LED
MAIL2 LED
MAIL3 LED
LINE
MAIL BOX
1
D214
2
D215
3
D216
CHARGE
COMPARATOR
D209
DIAL MODE
S1
RECT
D6, 7, 9, 10
REC MUTE
Q202
ANSWER
ON/OFF
D213
0 OPER
#
PGM
TONE
S225
S226
S227
S228
SPEED DIAL
FLASH
SPEAKERPHONE
S230
S231
S232
S229
4 GHI
5 JKL
6 MNO
ERASE
REC/MEMO
S209
S210
S211
S212
S213
SLOW
REPEAT
S214
QUICK
SKIP
S215
ANSWER
ON/OFF
S216
7 PQRS
8 TUV
9 WXYZ
PLAY/STOP
S217
S218
S219
MAIL BOX
1
2
3
S220
S221 S222
VOL +
VOL –
S223
S224
1
2 ABC
3 DEF
TIME SET
SELECT
MIC
S201
S202
S203
S204
S205
MENU
S206
INTERCOM
S207
HOLD
S208
REDIAL/PAUSE
7 SEGMENTS
LED
D217
WATCH DOG
TIMER
IC204
MESSAGE
COUNTER
COL0
–
COL7
ROW0
–
ROW3
1A
–
1G, 2A
–
2G
KEY MATRIX
S201-232
67
6
1
77
78
5
4
3
2
22
46
32
34
2
33
29
28
27
30
13
31
23
17
47
38
25
80
9
11
32
30
60
36
47
45
44
8
INTERCOM
D210
SPEAKERPHONE
D211
45
IN USE
D212
42
PULSE
TONE
SP LED
KEY OUT2
KEY OUT1
ENB3
ENB2
ENB1
TBUSY
CHG LED
SP LED
KEY IN2
KEY IN1
ENB3
ENB2
ENB1
TBUSY
INT LED
INUSE LED
WD OUT
57
PDN
RESET
TONE/PULSE
14
18
24
37
RESET
CHG OUT
26
RLCONT
20
PARAENB
21
BELL IN
48
LINE MUTE
1
DTMF
CHG CNT
PWR OFF
CHG IN
TX CNT
SPEAKER AMP
IC201
+
+
+
+
D17
RL1
D19
THOOK
TAD ACT
MIC MUTE
TADACT
MICMUTE
RING VOL
BELL OUT
SP MUTE
SYSTEM COMTROLLER
IC8 (2/2)
THOOK
SP MUTE
TONE OUT
SPOUTP
BEEP
REC MUTE
LINE OUT
DSP
IC202
HMGS
BELL IN
HMIN
SP701
(SPEAKER)
10
38
7
MIN
MIC MUTE
LINE IN
TAD ACT
MIC MUTE
Q204
MIC AMP
Q22, 23
MC1
(Page 26)
(Page 26)
MICMUTE
TADACT
A
B
TX
RX
BUFFER
IC6 (1/2)
AF AMP
IC4 (1/2)
TX LINE MUTE
Q3
HYBRID AMP
Q4
AF AMP
IC4 (2/2)
RX LINE MUTE
Q8
RINGER DETECT
IC2
BUFFER
IC6 (2/2)
+
+
+
PARA DETECT
IC5, Q11, 12
CHARGE CONTROL
Q13, 15
CHARGE DETECT
Q14
+3.7V REGULATOR
IC207
+5V REGULATOR
Q17
VOLTAGE DETECT
IC7
+3V REGULATOR
Q16
HOOK ON/OFF
RYLAY DRIVE
Q20
RESET SIGNAL
GENERATOR
Q18
B+ SWITCH
(FOR DSP)
Q201
IC206
SAW FILTER
RESET SIGNAL GENERATOR,
VOLTAGE DETECT
+6V REGULATOR
(FOR DIGITAL SYSTEM)
Q19
+6V REGULATOR
(FOR ANALOG SYSTEM)
Q21
B+ SWICH
(FOR TX SYSTEM)
Q10
J1
T1
LINE
TRANSFORMER
TX B+
(3V)
B+ (3V)
B+ (5V)
ANALOG B+ (6V)
–
+
J2
DC IN 9V
+
–
CHARGE
TERMINAL
DSP ANALOG B+
(6V)
DSP DIGITAL B+
(3.7V)
• SIGNAL PATH
: RX
: TX
: BELL
TONE/PULSE
4
5
VIN2
COMPARATOR
VREF
2
1
VIN1
VDET2
VDET1
5-2.
BLOCK DIAGRAM – BASE UNIT Section (2/2) –
– 27 –
– 28 –
Содержание SPP-A946
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