Schematic Diagram - Main Board (4/4) - Sony CX-BK1 Service Manual

8-16. SCHEMATIC DIAGRAM – MAIN Board (4/4) – •
(4/4)
CN007
4P
VSTBY(+9V)
M-GND
TUNER/AUX GND
(Page 63)
R689
4.7k
BASS BOOST
ENHANCER
IC603
NJM2156
R003
0
CN006
6P
VM+9.0V
VCC
GND(+12V)
+12V
GND(+7.0V)
+7.0V
(Page 53) C007
22
50V
See page 68 for IC Block Diagram.
(Page 45)
R681
220k
R677
22k
Q625
2SC3052F-T
1-LF
FEED BACK
R680 R679 C675
Q624
220k 100k 0.015 SWITCH
2SK2158
BOOST
C676
R678
1 CONTROL
220k
50V
R655
4.7k
C686 C630
4.7 4.7
50V 50V
R657
R656
1k
5.6k
C640
R672
47
4.7k
16V
Q614 Q615
2SK2158 2SK2158
C682 C684
0.0033 0.033
Q614-616
FREQUENCY CONTROL
R683 R682 R684
82k 47k 10k
Q617
2SK2158
C677
0.1
C683 C685
0.0033 0.033
C697 R669 R667
0.22 4.7k 10k
C687 C629 C645
R668
4.7 4.7 22 Q623
4.7k
50V 50V 16V 2SC3052F-T
1-LF
BBE ON/OFF
CONTROL
Q050,051
+9V REGULATOR
+10V REGULATOR
IC101
TA7810S
1A
Q051
2SA1015
I O
GR
G
R050 D050
100k 1SS355
Q050
2SC3052F-T
1-LF
C013 C050
C011 C012 R052 R053
47 10
0.1 0.1 8.2k 18k
25V 50V
R659
2.2k
R658 R660
820 3.3k
Q616
2SK2158
R636
27k
R685 R687 R688
47k 1.5k 1.5k
R686
8.2k
21
22
Q618
2SK2158
23
Q619
2SK2158
24
Q620
2SK2158
Q617-620
R666
BOOST CONTROL 270
V-BASS C641
47
16V
CD_ON
C052
47
25V
47 47
Q024
2SB1013
R032
47k
Q024,025
B+ SWITCH R031
470
C015
100
16V
Q25
DTC114YKA
C019 C018
C20
47 100
0.1
25V 10V
Q019
2SB1370E
R016 R017
470 47k
R038
220
R018 D016
100 1SS355
Q018
2SC3052F
D017
1SS355
C014 D015 C017
Q018,019 R019
470 MA8033-L 10
470
16V T W 50V +3.3V REGULATOR
CX-BK1
C1
C2
C3
C5
(Page 46)
CN507
11P
ROUT
A-GND
LOUT
RF-GND
R020
A-VDD(3.3V)
0
D-GND
D-GND
D-VDD(3.3V)
(Page 37)
MGND
C016
1000 MGND
16V
CD-VM(7V)
M-GND
D018
1SS355
(Page 44)
R011
2.2