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SPP-A985
4-1. BLOCK DIAGRAM – BASE UNIT SECTION –
BASE MAIN BOARD
ANT3001
TELESCOPIC
ANTENNA
BASE
RF UNIT (BU)
RX AUDIO
4
10
TX DATA
1
PLL REF
RSSI
5
9
PLL EN
8
SER DATA OUT
SER CLK
7
RX PWR
3
RF POWER
11
TX PWR
CONTROL
Q3008
U3008
J1002
D1001
SWITCH
Q1001
RECHARGEABLE
BATTERY
BP-T23
DC 3.6V
J1005
BASE KEY BOARD (2/2)
D10
SPARE BATTERY
J1001
DC IN 9V
!
+5V REG
U1001
J1003
CHARGE
TERMINAL
(FOR HANDSET)
J1004
HANDSET
Q1007
CHARGE
Q1006
02
SECTION 4
DIAGRAMS
67
DSIN
68
TXDATA
AON
64
PLL REF
79
APIN2
58
GPIO2/MONO2
AOP
EEPROM
P1.1
U3007
CS
1
55
GPIO5/TST1
AIN 90
SK
2
63 SCLK
DI
3
62 SOUT
DO
59 SIN
4
57 GPIO3/MON3
P1.0 11
FSK 89
A DIN 1 80
REG
48 XTAL2
X3001
RINGER 86
18.4MHz
49 XTAL1
D3001
50 DOUT1
EAOUT 87
S3001
DIAL MODE
56 GPIO4/TST0
T
P
EAIN 88
S3002
RINGER
LEVEL
H
43 GPIO1
SYSTEM
42 GPIO0
CONTROL
M
U3003
5V
L
P6.5
75 BATMON
74 VBAT
76 REG CTRL
2 DVCC1
POWER
78
CONTROL
AVCC1
P6.0
Q3001
P6.1
3.2V
P6.2
(MCU PWR)
P6.3
P1.5
P1.6
13 P1.2
P1.7
P6.4
CHARGE DET
14 P1.3
P5.0
Q1008
I
P5.4
P4.0
I
P4.4
– 25 –
TEL AMP
U6001
(1/4,2/4)
T1001
84
+
6
7
4
3
5
1
83
+
2
1
12
TEL AMP
U1003
(1/4)
2
1
3
BPF
U6001
(4/3)
9
8
AMP
AMP
Q6002
Q6003
RINGER DETECT
RINGER DETECT
U1003
U1003
(3/4)
(2/4)
5
8
9
7
6
MIX
U6001
(4/4)
RI
+
13
14
LPF
2
1
21
SPEECH PATH
U3004
HYBRID
MIC
5
9
10
AMP
AMP
LED CONTROL
MUTE
U3001
12
SCLK
Q7
11
7
A
14
Q6
6
LCLK
8
12
1.5
Q0-Q5
15
LCD MODULE BOARD
3
5
LCD DB4
4
6
LCD DB5
5
7
LCD DB6
6
8
LCD DB7
16
4
LCD E
17
3
LCD R/W
18
2
LCD RS
7
9
LCD BL
30
KEY MATRIX
I
ROW0-ROW4
S1-S21
34
35
I
COL0-COL4
39
• Signal Path
D1007-1010
W1001
1
J1008
HOOK
LINE
SWITCH
2
U1002
LINE
CONDITION MONITOR
BASE KEY BOARD (1/2)
+
U1003
(4/4)
12
14
13
SPEAKER AMP
U3005
OUTPUT1
RECO
INPUT -
3
22
2
+
6
OUTPUT2
1
MUTE
7
MIC
U3006
11
+
KEY LIGHT
D9,11-13,16
KEY LIGHT
D6-8,14
CAD 1
MESSAGE
LED DRIVER
CAD 2
COUNTER
(
)
7 SEGMENT
LED DISPLAY
SEG A-G
LED000
KEY MATRIX
ITAD ROW0-ROW4
S22-S32
ITAD COL0-COL2
– 26 –
: TX (To Tel Line)
: RX (From Tel Line)
: bell
I-TAD BOARD
BU HOOK SW
5
BU HOOK SW
LINE 2
11
LINE 2
ITAD HOOK SW
1
ITAD HOOK SW
LIFP OUT
10
LIFP OUT
ITAD LINE
3
LINE CON0
ITAD SPK OUT
18
Ref No.
PANEL DESIGNATION
S1
VOL-
S2
VOL+
S3
"1"
S4
"2" ABC
S5
"3" DEF
SP1
S6
PGM
SPEAKER
S7
"4" GHI
S8
"5" JKL
S9
"6" MNO
S10
REDIAL/PAUSE
S11
"7" PQRS
MIC
S12
"8"TUV
S13
"9" WXYZ
S14
SPEED DIAL
S15
"*"
S16
"0" OPER
S17
"#" TONE
S18
CALL WAITING/FLASH
ITAD SP EN
S19
HOLD
4
S20,D11
SPEAKER PHONE
J4
S21,D13
INTERCOM
S22
REC/MEMO
S23
ERASE
S24,D14
ANSWER ON/OFF
S25,D8
MAIL BOX 1 PLAY/STOP
S26,D7
MAIL BOX 2 PLAY/STOP
S27,D6
MAIL BOX 3 PLAY/STOP
J3
S28
SLOW REPEAT
LED DRIVE
DIR LED SEL
S29
QUICK SKIP
8
Q3,4
S30
MENU
S31
SELECT
S32
TIME/SET
D9
LINE
6
DIR 7SEG 01
D10
SPEAR BATT
Q5-8
7
D12
CHARGE
DIR 7SEG 02
D16
NEW CALL
9
SEG A
I
15
SEG A
16
ITAD ROW0
I
18
ITAD ROW4
20
3
ITAD COL0
I
4
ITAD COL2
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