Read Sony HT-K5 / STR-K5 Service Manual online
10
10
STR-K5
STR-K5
4-3. BLOCK DIAGRAM – KARAOKE Section –
• Signal path
: TUNER (FM/AM)
• R-ch is omitted due to same as L-ch.
5
1
TONE CONTROL
IC2000
MIC AMP
IC2004
MIC 1 AMP
IC2001
RV2000
MIC 1 VOL
RV2003
HIGH
J2000
MIC 1
MIC 1
KARAOKE
RV2002
MID
RV2001
LOW
5
7
MIX AMP
IC2350 (1/2)
5
7
AF AMP
IC2102
5
7
AF AMP
IC2101
L OUT
5
7
BUFFER AMP
IC2351
3
1
3
1
MIX AMP
IC2350 (2/2)
+9V
+K5V
+15V
RY2000
INVERTER
IC2301
SYSTEM CONTROLLER
IC1101 (3/5)
64
63
KARAOKE CONTROL
IC2300
7
MIC AMP
IC2003
IC2120
ECHO
CONTROL
ECHO
RV2109
KARAOKE
16
18
20
14
12
5
7
5
1
3
2
10
TONE
(MIC 1 TONE)
TONE CONTROL
IC2100
RV2103
HIGH
RV2102
MID
RV2101
LOW
16
18
20
14
12
TONE
(MUSIC TONE)
KARAOKE
5
1
MIC 2 AMP
IC2002
RV2050
MIC 2 VOL
RV2053
HIGH
J2050
MIC 2
MIC 2
RV2052
MID
RV2051
LOW
1
5
3
1
7
9
3
TONE
(MIC 2 TONE)
9
3
77
75
74
SEL
R-CH
WR
STB
CLK
REQ
DATA
LOUT
MIC IN
L IN
R IN
ROUT
SRAM
K-OK R/W
K-OK STB
K-OK CLK
K-OK REQ
K-OK DATA
INTERFACE
SRAM
36
1
88
34
4
90
33
3
6
8
10
89
K-OK RY
87
35
34
32
33
RELAY
DRIVER
Q2000
+4V REGULATOR
Q2350
CN2506
D-LIGHT
SYNC OUTPUT
+9V
D+4V
L+R
-1
-2
3
L
4
R-CH
R-CH
MIC
OUTPUT
J400
R
E
L OUT
D
PHASE
SHIFTER
LOGIC
EQ
3
1
IC2303
IC2302
3
1
+5V
REGULATOR
+9V
REGULATOR
(Page 9)
(Page 8)
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