Block Diagram - Karaoke Section - Sony STR-DK5 Service Manual

4-3. BLOCK DIAGRAM — KARAOKE SECTION —
MIC 1 AMP
IC2001
J2000 5
MIC 1
KARAOKE
MIC 2 AMP
IC2002
J2050
5
MIC 2
AF AMP
IC2101
DIGITAL
E L OUT 5
SECTION
(Page 12)
KARAOKE
(MUSIC TONE)
• Signal path
: TUNER (FM/AM)
• R-ch is omitted due to same as L-ch.
STR-DK5
TONE CONTROL
IC2000
RV2000
MIC 1 VOL
1 14 TONE 12 5
RV2003
HIGH 16
RV2002
18
(MIC 1 TONE) MID
20
RV2001
LOW
RV2050
MIC 2 VOL
1 7 TONE 9 3
RV2053
HIGH 5
RV2052
3
(MIC 2 TONE) MID
1
RV2051
LOW
TONE CONTROL
IC2100
AF AMP
IC2102
7 14 TONE 12 5 7
RV2103
HIGH 16
RV2102
18
MID
20
RV2101
LOW
IC2120
ECHO
CONTROL
MIC AMP
IC2003
2 3 9 10
RV2109
7
MIC AMP
ECHO KARAOKE
IC2004
5 7 3
1
KARAOKE CONTROL
IC2300
MIC IN
77
LOUT
L IN
PHASE EQ
75 SEL
SHIFTER
ROUT
R IN
R-CH 74
SRAM
LOGIC SRAM
INTERFACE
36 34 33 35 32
3 6 8
INVERTER
IC2301
1 4 10
88 90 89 34 33
SYSTEM CONTROL
13 13
MIX AMP
IC2350 (1/2)
5 7
1
R-CH
BUFFER AMP
IC2351
64 5 7
3 1
63 R-CH
RELAY
DRIVER
Q2000
RY2000
IC2303
+5V
3
+K5V
REG
87
IC1101 (3/5)
STR-DK5
J400
-1
L
MIC
OUTPUT
-2
R
MIX AMP
IC2350 (2/2)
CN2506
L+R 3
3 1
D-LIGHT
SYNC OUTPUT
4
+4V REG D+4V
+9V
Q2350
TUNER/
D
AUDIO
L OUT
SECTION
(Page 11)
IC2302
+9V
1 3 1
+15V
REG
+9V