Block Diagram - Tuner/Audio Section - Sony STR-KM5500 Service Manual

STR-KM5500
6-1. BLOCK DIAGRAM – TUNER/AUDIO Section –
VIDEO
AUDIO IN
L R
-3 -4
J404 (1/2)
TN1
FM/AM TUNER UNIT
L-CH
FM 75Ω
R-CH
COAXIAL
ANTENNA
SD 78 TUNER_SD
CONTROL
AM
IC1101 (1/6)
CE 92 SLATCH
DI 91 TUNER_DATA
CL 90 TUNER_CLK
89 DO/SD/ST
TU+9V DO
DISPLAY
5 DMPORT_RX
SECTION
DMPORT_TX
6 DMPORT_TX
(Page 22)
DET
7
L+
13
J1302
L–
11
DMPORT
DC5V
R+
14
0.7A MAX
R–
12
DBUS+5V
2
VIDEO+5V
4
STR-KM5500
SAT DVD
AUDIO AUDIO SA-CD/CD/CD-R TV
IN IN IN IN
L R L R L R L R
-1 -2 -3 -4 -3 -4 -5 -6
J403 J401 (1/2)
SYSTEM
VOL_IC_DATA 24
VOL_IC_CLK 25
DMPORT_DET 26
DMPORT AMP
IC501
3
1
2
5
7
6
IC1906
4 +5V REG 2 +5.8V
DIR
FUNCTION SELECT
IC400
52
51
56
55
44
43
48 SEL
SW
47
35
34
63
64
59
L
60
SEL
10
MCU
SL
11 I/F
SEL
C
SEL
SW
SEL
SB
SEL
66 71 70 68 72 69
SB OUT
SW OUT
C OUT
DIGITAL AB
SL OUT
SECTION
(Page 19)
SR OUT
FL OUT
FR OUT
18 18
SA-CD/CD/CD-R
AUDIO OUT
L R
-7V +7V
-1 -2
J401 (2/2)
12 8
VEE VCC
29
30
25
26
76 L-IN
R-CH 75 R-IN
14
FL-CH
R-CH
13 FR-CH
18 SL-CH
R-CH 17
SR-CH
16 C-CH
15
SW-CH
20 SB-CH
MIC AMP
R-CH 20 38 1
2
L-CH 39 20 6
7
72
• Signal path
: AUDIO (ANALOG)
: TUNER
• R-ch is omitted due to
same as L-ch.
VIDEO
AUDIO OUT
L R
-1 -2
J404 (2/2)
DIGITAL AB
SECTION
(Page 19)
POWER
SECTION
(Page 23)
IC181
J181
R
3
L
5
V
Video