SPP-A2480/S2430
– 33 –
– 34 –
SECTION 4
DIAGRAMS
4-1.
BLOCK DIAGRAM – BASE UNIT Section –
14
15
12
25
13
24
23 22 20 19 11 17 3 4 18
46
3
38
5
2 4 47 52 45 42 43
11
45
3
35
47
33
32
73
94
42
25
32
36
38
53
54
29
31
27
27
26
28
57
33
60
29
30
30
56
34
6
50
95
4
61
3
62
2
58
43
5
48
44
15
84 – 91
18 – 21, 24 – 27
37
6
22
23
12
5
64
20, 21, 24 – 26
13 – 18
COL1 – COL5
ROW1 – ROW6
4
1
3
63
40
51
61
53
1
41
2
PCM
COMPRESSOR
L. P. F.
ADPCM
B. P. F.
PCM
EXPANDER
D/A
CONVERTER
A/D
CONVERTER
ANT101
MAIN
ANTENNA
ANT102
SUB
ANTENNA
IS
IR
VFRO
AIN–
HMIN
HSOUT
MIN
SPOUTN
SPOUTP
GPIO15
MIC ON/OFF
SWITCH
IC471 (3/4)
SPEAKER ON/OFF
SWITCH
Q472
SPEAKER ON/OFF
SWITCH
Q471
HANDSET MIC
ON/OFF SWITCH
IC471 (2/4, 4/4)
HANDSET SPEAKER
ON/OFF SWITCH
Q473, 474
HANDSET
CN402
DIAL MODE
S252
ENTER
S701
P
T
OFF
ON
MIC
SP
SP
LOCAL
HANDSET
SP401
(SPEAKER)
MIC401
(MIC)
5V
B+
DSP
IC651
DRDN
LOUT
LIN
43
CIDIN
42
CIDIP
XOUT
XIN
DWRN
ALE
CLE
FCSN
DGPIO0 – DGPIO7
I/O0 – I/O7
RE
WE
ALE
CLE
CE
WP
FLASH
MEMORY
IC671
SHDO
SHDI
SHSC
SHRNW
PDN
HCSN
ACKN
RSTN
X651
4.096MHz
TEL AMP
Q403
AF AMP
Q405, 406
TEL
LINE
B+
TEL LINE
SWITCH
Q402, 404
RINGER
DETECT
PH401
VOLTAGE
DETECT
Q251
RESET SIGNAL
GENERATOR
IC253
+5V
REGULATOR
IC501
+3.3V
REGULATOR
IC502
LINE
CN401
LED (ANS) / (VMWI)
AC POWER FAIL
BRANCH DET (OFF)
DSP SDI
SP/HS SELECT
CODEC RESET
DSP SDO
DSP SC
DSP HRNW
DSP PWR DOWN
DSP CSN
DSN ACKN
DSP RESET
OFF HOOK CONT
RING DET
TEL LINE B+
ANSWER
ON/OFF
LED DRIVE
Q711
D711
D712
D721 –726
(LCD BACK LIGHT)
HOOK SW DET
JOG PUSH
JOG B
JOG A
E2PROM SCL
E2PROM SDA
SCL
SDA
LCD SDA
LCD SCL
LCD CS
SDA
SCL
CS
RESET
LED CONT (LCD)
SYSTEM CONTROLLER
IC251
RESET
LCD101
LIQUID CRYSTAL
DISPLAY MODULE
S251
(HOOK ON/OFF)
5V B+
JOG701
(JOG)
SS SPI DIN
SS SPI DOUT
SS SPI CLK
SS PWR DOWN CONT
ANTENNA SELECT B
ANTENNA SELECT A
SS IRQ
SS SPI EN
KEY MATRIX
K701 – 709, K711 – 714,
K716 – 723, K727 – 730
(K721 – 723: SPP-A2480)
EEPROM
IC252
Ref No.
K701
K702
K703
K704
K705
K706
K707
K708
K709
K712
K714
PANEL DESIGNATION
#
OPER 0
TONE
HOLD
LONG DEST. SAVER
WXYZ 9
TUV 8
PQRS 7
CALL WAITING/FLASH
MNO QUICK 6 (SPP-A2480)
MNO 6 (SPP-S2430)
JLK 5
GHI REVIEW 4 (SPP-A2480)
GHI 4 (SPP-S2430)
INTERCOM
Ref No.
K717
K719
K720
K721
K722
K723
K727
K728
K729
K730
PANEL DESIGNATION
DEF
>
SKIP 3 (SPP-A2480)
DEF3 (SPP-S2430)
ABC 2
.
REPEAT 1 (SPP-A2480)
1 (SPP-S2430)
REDIAL/PAUSE
SPEAKERPHONE
MEMO
PLAY/STOP
ANSWER ON/OFF
VOLUME –
ERASE
PROGRAM
SYSTEM CONTROLLER (IC251),
EEPROM (IC252), DSP (IC651),
FLASH MEMORY (IC671), LCD B+
RF UNIT (RF201),
CODEC (IC231) B+
–
+
DC IN 11V
J501
D501
CODEC
IC231
39
LED (NEW CALL)
60
BRANCH DET (ON)
LINE B+
26
27
23
22
PCMRO
PCMSI
PCMSO
PCMRI
LINE
B+
05
•
SIGNAL PATH
: RX
: TX
: BELL
NEW CALL
D713
MESSAGES
(SPP-A2480)
(SPP-S2430)
(SPP-A2480)
TEL AMP
Q231
28
29
20
CLOCK
GENERATOR
IC232
X231
10.368MHz
SYNC
BCLK
PCMB SYN
PCMB CLK
TXAD PCM
RXAD PCM
SS SPI RESET
SPI OUT
SPI IN
SPI CLK
SPI EN
IRQ
POW DWN
ANT B CONT
ANT A CONT
RESET
D401 – 404
K711
K716
K718
K713
6
8
ANT B
ANT A
58
57
CF2
CF1
X251
6MHz
MCK
PDN
RF201
RF UNIT