Sony STR-DK5 E, Service Manual, Page: 11 / 58

STR-DK5
11 11
STR-DK5
4-1. BLOCK DIAGRAM — TUNER/AUDIO SECTION —
(Page 13)
(Page 12)
(Page 15)
SECTION 4
DIAGRAMS
(Page 12)
C-CH
SR-CH
R-CH
SL-CH
L-CH
R-IN
L-IN
SW
SEL
C
SEL
SL
SEL
R-CH
R-CH
R-CH
DIR
FUNCTION SELECT
IC400
AVCC DVDD
+7V
+3.3V
+7V
SEL
SW
MCU
I/F
SW OUT
C OUT
SL OUT
L OUT
• Signal path
: TUNER (FM/AM)
: VIDEO (AUDIO)
: CD (ANALOG)
• R-ch is omitted due to
same as L-ch.
76
75
78
74
73
AUDIO IN AUDIO IN
L R L R
VIDEO 1
DVD
AM
TN1
FM/AM TUNER UNIT
SYSTEM
CONTROL
IC1101 (1/5)
SA-CD/CD
L R L R
J401 J402
R-CH
SLATCH
17 TUNER DATA
16 T.SERIAL CLK
VOL DATA
VOL CLK
STEREO
TUNED
MUTE
DO
L-CH
R-CH
STEREO
TUNED
MUTING
CE
DO
DATA
CLOCK
TU+10V
32
31
VIDEO 2
FM 75
Ω
COAXIAL
ANTENNA
-1 -2 -3 -4 -1 -2 -3 -4
VDD3.3V
53 RDS DATA RDS DATA
52 RDS CLK RDS INT
43 RDS SIG
RUSSIA MODEL
FM SIG OUT
10
AUDIO IN AUDIO IN
26 27
24
25
14
49
48
40
41
SB-CH
33
21 20 19 16
7
6
9
8
3
2
5
4
32
+3.3V REG
Q471
13
L
SEL
DIGITAL
SECTION
B
KARAOKE
SECTION
D
DIGITAL
SECTION
A
POWER
SECTION
C
Ver. 1.1