SPP-A972
14
11
12
15
9
10
11
14
13
14
5
2
5
4
10
15
12
13
1
8
3
6
2
7
11
14
9
16
15
1
2
3
4
5
6
3
14
11
12
7
6
5
4
3
2
1
15
Q7
Q6
Q5
Q4
Q3
Q2
Q1
Q0
CONF
INT COM
SPK2
SPK1
L2
L1
ASIC SPK MUTE
MIC MUTE
14
11
12
15
3
2
4
1
5
Q0
Q3
Q2
Q4
Q1
Q5
7
6
5
1
5
6
17
16
57
76
1
15
42
22
21
7
18
12
–
14, 16
3
–
5
30
–
34
35
–
39
48, 49
15
14
11
3
Ref No.
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
PANEL DESIGNATION
REC/MEMO
ERASE
ANSWER ON/OFF
VOLUME –
TIME/SET
SELECT
MENU
MAIL BOX 2
MAIL BOX 3
REPEAT/SLOW
PANEL DESIGNATION
SKIP/QUICK
MAIL BOX 1
FLASH
HOLD
CONF
INTERCOM
LINE1
LINE2
MUTING
OFF
Ref No.
S12
S13
S14
S15
S16
S17
S18
S19
S20
S21
9
E
K
A
J
D
9
14 5
11
3
2
10
1
4
3
11
14
12
10
2
1
15
Q5
Q4
Q3
Q2
Q1
Q0
10
2
23
16
17
+
–
+
–
C
ANSWER
ON/OFF
MAIL BOX
1
MAIL BOX
2
MAIL BOX
3
D4
D5
D6
D3
D2
7 SEGMENTS LED
MESSAGE
COUNTER
CA2
CA1
A2
G1
B2
B1
C1
C2
D1
D2
E1
E2
F2
F1
G2
G1
Q0
Q1
Q2
Q3
Q4
Q5
Q6
LATCH
SHIFT
REGISTER
SER
SCLK
RCLK
LED/7 SEGMENTS
LED DRIVE
U1
B+ SWITCH
(FOR LEDS)
Q3
7 SEGMENTS
LED DRIVE
Q1
7 SEGMENTS
LED DRIVE
Q2
L DATA
7SEG D1
7SEG D2
LED SEL
L CLK
L LATCH
VCC
I-TAD
UNIT
(2/2)
+5V
TAD TARM
S DATA
TAD CTR
S DATA
TAD CTR
ACTIVE
TAD S
CLOCK
TAD NINT
ROW0
–
ROW2
ROW4
COL0
–
COL2
KEY MATRIX
S1 – 3, 6 – 13
P6.2
P6.3
P1.6
P1.5
GPIO3/MON3
REGCTRL
P6.5
P6.4
P1.7
ASIC
U1000 (2/2)
P1.4
GPIO0
P5.0
–
P5.4
P4.0
–
P4.4
XTAL1, XTAL2
X1001
18.4MHz
KEYMATRIX
S4, 5, 14 – 21
DTMFEN
CASDET
FSK/CAS
PD
OUT
IN
DTMFOUT
DCLK
DATA
XOUT
XIN
X1000
3.579545MHz
FREQUENCY SHIFT
KEYING DEMODULATOR
U1014
CID/DTMF DATA
DTMF CLK
DTMF O/P
EXT CID FSK
SER DATA OUT
G
H
F
(Page 25)
(Page 25)
(Page 25)
(Page 25)
DC IN 9V
J1004
D1010
CHARGE ON
SWITCH
Q1001
CHARGE
TERMINAL
FOR
SPARE
BATTERY
CHARGE
TERMINAL
FOR
HANDSET
BATTERY
REGULATOR
U1015
L2 RINGER
LEVEL
+5V
REGULATOR
U1005
CHARGE
CONTROL
Q1002, 1003
CRADLE
DETECT
Q1004
B+ SWITCH
(FOR TX SYSTEM)
Q1000
REGULATOR
U1005
SPARE
BATTERY
D7
RX PWR
B+
TX PWR
B+
ASIC (U1000), EEPROM
(U1011), FREQUENCY SHIFT
KEYING DEMODULATOR
(U1014), LED B+
SPEAKER AMP (U1013)
VOICE SPEAKER PHONE
(U1019) B+
S1001
HIGHT LOW OFF
12 13
L1 RINGER
LEVEL
S1002
S1003
HIGHT LOW OFF
DIAL MODE
TONE PULSE
SHIFT REGISTER
U1017
SHIFT REGISTER
SER
CK
SL
E
A
C
B
G
D
QH
LATCH
SHIFT REGISTER
& LATCH
U1012
RCLK
SCLK
SER
SHIFT
REGISTER
CONF, INT COM,
SPK2, SPK1, L2, L1
SER CLK
TAD SPK SW
ASIC SPK/MIC MUTE
SER DATA IN
05
(Page 25)
(Page 25)
(Page 25)
(Page 25)
(Page 25)
DTMF SEL
CID SEL
LATCH
SDO
SHIFT REGISTER
& LATCH
U1020
RCLK
SCLK
SER
SHIFT
REGISTER
NEW CALL
D1
INTERCOM
D8
LINE2
D12
LINE1
D11
CHARGE
D9
MUTING
D10
LATCH
SHIFT
REGISTER
SER
SCLK
SDO
RCLK
SHIFT REGISTER
& LATCH
U1021
B
(Page 25)
4-2.
BLOCK DIAGRAM – DISPLAY/KEY SHIFT/POWER SUPPLY Section –
– 27 –
– 28 –