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SPP-A2480/S2430
4-2.
BLOCK DIAGRAM – HANDSET Section –
ANT201
(ANTENNA)
8 ANT
58
CF2
X51
6MHz
57
CF1
38
5
EEPROM
• SIGNAL PATH
: RX
: TX
: BELL
05
CODEC
IC31
IR
PCMRO
RXAD PCM
13
24
ADPCM
IS
PCMSI
TXAD PCM
12
25
PCMB CLK
15
29
BCLK
RF1
RF UNIT
PCMB SYN
14
28
SYNC
23 22 20 19 11 17 18
20
CLOCK
GENERATOR
IC33
X31
10.368MHz
3 2 4 47 52 45
46
SYSTEM CONTROLLER
COL1 – COL5
ROW2 – ROW6
37
20, 21, 24 – 26
14 – 18
22
6
JOG1
(JOG)
K704 – 709, K711 – 718,
K720 – 724, K726 – 730
IC52
Ref No.
PANEL DESIGNATION
Ref No.
K704
TALK
K717
K705
PAUSE REDIAL
K718
K720
. REPEAT 1 (SPP-A2480)
K706
1 (SPP-S2430)
K721
K707
CALL WAITING FLASH
K722
K708
INTERCOM
K723
K724
REVIEW 4 GHI (SPP-A2480)
K709
4 GHI (SPP-S2430)
K726
K711
LONG DIST. SAVER
K712
7 PQRS
K727
K713
OFF
K728
PLAY BACK HOLD (SPP-A2480)
K714
HOLD (SPP-S2430)
K729
K715
TONE
K730
K716
PROGRAM
– 35 –
VFRO
PCMRI
PCM
D/A
L. P. F.
23
22
EXPANDER
CONVERTER
AIN–
PCMSO
PCM
A/D
26
27
B. P. F.
COMPRESSOR
CONVERTER
15
SPEAKER ON
SP AMP
3.3V
SWITCH
B+
B+
Q31
44
27
IC51
23
12
5
3.3V
B+
S2
RING
OFF
ON
SS POWER CONT (STAND-BY)
PANEL DESIGNATION
ERASE
ONE-TOUCH DIAL A
2 ABC
5 JKL
8 TUV
0 OPER
ONE-TOUCH DIAL B
> SKIP 3 DEF (SPP-A2480)
3 DEF (SPP-S2430)
QUICK 6 MNO (SPP-A2480)
6 MNO (SPP-S2430)
9 WXYZ
#
ONE-TOUCH DIAL C
S1
VOL
VOLUME
HEADSET
AF AMP
11
CONTROL
AMP
IC32
S1
Q101
TEL AMP
3
Q32
MUTING
Q102
BUZZER DRIVE
RING OUTPUT
6
Q104
BUZZER VOL
30
LCD SDA
64
4
SDA
LCD201
LCD SCL
1
3
SCL
LIQUID
LCD CS
63
2
CS
CRYSTAL
LCD CONTROL
32
9
VCI
DISPLAY
MODULE
1
RESET
RESET SIGNAL
RESET
53
GENERATOR
IC53
D56 – 58
LED DRIVE
(LCD BACK LIGHT)
Q52
LED CONT (LCD)
41
D52 – 55
LED DRIVE
(KEY BACK LIGHT)
Q51
LED CONT (KEY)
40
CLOCK GENERATOR
B+ SWITCH
(IC33) B+
Q2
RF UNIT
B+ SWITCH
(RF1) B+
Q1
SS POWER CONT (TALK)
29
28
CODEC (IC31), SYSTEM
CONTROLLER (IC51),
EEPROM (IC52), LCD B+
CHARGE ON
WAKE UP
50
DETECT
Q107
DIS CHG (WAKE UP)
48
LOW BAT DET
31
CHARGE DET
61
BATT
B+
BATT POWER FAIL
51
– 36 –
J1
I
SPEAKER
SP1
AMP
(SPEAKER)
Q103
MIC1
(MIC)
BZ1
(BUZZER)
3.3V
B+
BATT
B+
+3.3V
REGULATOR
IC101, Q108
RECHARGEABLE
BATTERY PACK
(BP-T24)
VOLTAGE
DETECT
IC102
D102
CHARGE ON
+
DETECT
Q106
CHARGE
TERMINAL
–
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