Diagrams; Block Diagram - Main Section - Sony SPP-IM977 Service Manual

SPP-IM977
4-1. BLOCK DIAGRAM – MAIN Section –
CONF, INT COM,
SPK2, SPK1, L2, L1
A
(Page 25)
ANT1
(ANTENNA)
TX DATA 11
RX AUDIO 5
RF1
RF
UNIT
RSSI 6
PLL REF 10
PLL EN 2
SER DATA OUT 9
SER CLK 8
SER CLK
(Page 25) B
2 SK
SER DATA OUT
(Page 26) C
3 DI
SER DATA IN
(Page 25) D 4 DO
DTMF/CID SEL
E
(Page 25)
Z
4
Y
EX CID FSK
(Page 26) F
15
X
14
CID DTMF DATA,
DTMF CLK
(Page 26) G
DTMF O/P
H
(Page 26)
U1018
(MIC)
MCI MCO
MIC
11 10
AMP
MUTE
12
MIC MUTE
SPEAKER AMP
U1013
SP1
(SPEAKER)
8 VO2
VIN 2
5 VO1
CD
1
ASIC SPK MUTE
J
(Page 25)
05
SECTION 4

DIAGRAMS

68 TX DATA
AOP
67 DSIN
AIN
86 RINGER
P1.0
P1.1
79 ADIN2
64 PLLREF
P1.2
58 GPIO2/MON2
P1.3
ASIC
59 SIN
U1000 (1/2)
62 SOUT
63 SCLK
55 GPIO5/TST1
1 65 DAOUT2
CS
80 ADIN1
EEPROM
U1011
89 FSK
56 GPIO4/TST0 P3.0
43
LINE1/2
SELECTOR
U1028
11 10 9
A B C
SELECTOR
Z0
L1 FSK
5 U1002
11 10 9
L2 FSK
Z1
3
A B C
Y0
Z0
2
Z
Y1 4
Z1
1
LINE COND1 CID DTMF
X0
Y0
12
DATA
Y
LINE COND2 15
X1 Y1
13
DTMF
CLK X
14
X1
HTO+
TXO HTI
TXI TX HYBRID
9 8 7 HTO–
ATTENUATOR AMP
TLI2 TLI1
17
LEVEL
RLI2 RLI1
20
DETECTOR
VOICE SPEAKERPHONE
U1019
DAOUT2 VLC
13
ATTENUATOR
CONTROL CIRCUIT
DIAL MODE
DETECTOR
RXO RXI
RX
22 21
ATTENUATOR
– 23 –
LINE
SELECT
U1001 (1/4)
CONF
83
LINE
AF AMP
90
SELECT
U1008 (4/4)
U1004 (3/4)
RING1
11 L1
RING2
12
HOOK1
13 LINE
HOOK2
SELECT
14
U1004 (4/4)
SPK1
LINE
SELECT
U1004 (1/4)
SPK1
LINE
21 SELECT
U1004 (2/4)
L1
LINE
SELECT
U1004 (3/4)
INT COM
5
3
2
LINE
1
SELECT
U1001 (2/4)
CONF
13
LINE
SELECT
U1006 (3/4)
L2
5
6
LINE
SELECT
23
U1006 (4/4)
26
SPK2
LINE
SELECT
U1006 (1/4)
SPK2
AF AMP
LINE
U1007 (4/4)
SELECT
U1006 (2/4)
L2
LINE
SELECT
U1011 (1/4)
INT COM
T1001
LINE
TRANSFORMER
AF AMP TEL AMP
U1010 (4/4) U1010 (1/4, 2/4)
HOOK
TEL AMP
ON/OFF
U1010 (3/4)
U1003
PARA DETECT
Q1006, 1008, U1022
LINE CONDITION
LINE COND1
MONITOR
U1008 (1/4)
HOOK1
Q1007
RING1
Q1010
RING2
HOOK2
LINE CONDITION
LINE COND2
MONITOR
U1007 (1/4)
PARA DETECT
Q1019, 1022, U1023
T1000
LINE
TRANSFORMER
AF AMP TEL AMP
U1009 (1/4) U1009 (3/4, 4/4)
HOOK
TEL AMP
ON/OFF
U1009 (2/4)
U1016
• SIGNAL PATH
: RX
: TX
: RX (INTERCOM)
: TX (INTERCOM)
: BELL
– 24 –
1
2
J1003
L1/L1+L2
3
4
D1005, 1006,
D1018, 1020
RINGER
DETECT
U1008 (2/4, 3/4)
RINGER
DETECT
U1007 (2/4, 3/4)
1
J1011
2
L2
D1014, 1016
D1017, 1021
1
J1008
2
DATA