Schematic Diagram -Main-Amp Section (2/2) - Sony HCD-EX6 Service Manual

6-14. SCHEMATIC DIAGRAM – MAIN-AMP Section (2/2) –
1 2 3
MAIN-AMP BOARD (2/2)
A
BUS1
EX6T/EX8T/EX9T
R672 22k
R671 22k
R609 4.7k
B 1
R610 4.7k
2
C 3
16 15 14 13 12 11 10
4
17 18 19 20 21 22 23
D
EX6/EX6T
R623 R624 R635
E
22k 22k 5.6k
5
C637
1
50V
R637 C651
100 R652 10
0 50V
F 7
R651 R654
680 56k
MAIN-AMP
1
BOARD
(1/2) IC B/D EX6/EX6T
(Page 32)
G
1 2
H
EX9/EX9T
R246
I D251 2.2k
MA2J1110GLS0
8
EX6/EX6T/
EX9/EX9T
R255
2.2k
J
R245
2.2k
D240
MA2J1110GLS0
9
10
11
12
K
13
14
15
16
17
18
19
20
L
HCD-EX6/EX6T/EX8/EX8T/EX9/EX9T
• See page 41 for IC Block Diagrams.
4 5 6
C613 1
C614 1
R613 10k
R614 10k
R601 4.7k
R602 4.7k
R605 0
R606 0
R611 22k
R612 22k
R616
2.7k
C603 220p
2SC3052F-T1-LF
C604 220p 0
REC MUTE
C607 1000p
Q602
0 2SC3052F-T1-LF
C608 1000p
REC MUTE
C611 1000p 0.7
C612 1000p
R615
C615 220p
2.7k
C616 220p
EX6T/EX8T/EX9T
IC B/D
*1 C203 *2 C621,622
9 8 7 6 5 4 3 2 1
0.01 1500p
IC601
(EX9/EX9T) (EX6/EX6T)
470p 2200p
IC601
(EX6/EX6T) (EX8/EX8T/EX9/EX9T)
BD3491FS-SE2
ELECTRICAL
VOLUME,
INPUT
24 25 26 27 28 29 30 31 32 *6 R203 *7 R221
SELECTOR
2.2k 220
(EX6/EX6T) (EX9/EX9T)
10k 1.8k
(EX9/EX9T) (EX6/EX6T)
C638 C643
R636 C645 C644 C642 R641
1 10
5.6k 3300p 1000p *4 100
50V 50V
R638 C641
100
470p
R650 R663
1k 0
9
R655 R657
R661
100k 1k 47k
1.7
9
C658
Q653
0.022 2SC3052F-T1-LF
5.4 1.1 4.4
SUBWOOFER
2.3
C653 C654 BAND-PASS FILTER
0.22 0.22
Q651 3.8
R665 R666
2SC3052F-T1-LF
10k 10k
1.7 3.6
SUBWOOFER
BAND-PASS FILTER
R660
R658 C655
4.7k
0.22
2.2k
C652
0.01
C650
R656 R659 R662 R664 C656 R667
100
1k 1.5k 100k 1k 0.047 1k
16V
IC202
IC201
IC202 STK433-060
2CH POWER AMP 3CH POWER AMP
3 4 5 6 7 8 9 10 11 12 13 14 15 1 2 3 4 5 6 7 8
R215
0.22
2W
R235
0.47
2W
R244
R242
22k 1.2k
C265 C266
0 0
10 10
R237
50V 50V
Q242
0.47
2SA2026 C242
2W
OVERLOAD DETECT
0.1
0
R253 R251
R236
22k *10 0.22
C268
0 0
100 2W
50V
EX6/EX6T
Q251
2SA2026
EX9/EX9T
OVERLOAD DETECT
0
C251 R250
1.5k R262
0.1
220
R264
220
R243 R241 R261 220
22k 1.2k
0 0 R263 220
C262
0.1
C267
C261 0.1
Q241 100
2SA2026
C241 50V
OVERLOAD DETECT 0.1 C264
0
0.1
C263 0.1
R201
*5
7 8 9 10
9 2SC3052F-T1-LF
TAPE POWER CONTROL
8.2
Q607 0
KTA1266GR-AT
TAPE POWER CONTROL R872
4.7k
9
R871
Q601
10k
0.7 3STATE-OUT
R617 R873
4.7k 10k
R618
4.7k
*3 C631,632 *4 C642 *5 R201
0.1 100 16V 1.8k
(EX8/EX8T/EX9/EX9T) (EX8/EX8T/EX9/EX9T) (EX6/EX6T)
6800p 220 16V 6.2k
(EX6/EX6T) (EX6/EX6T) (EX9/EX9T)
O-POWER
O-SP-RELAY/O-TP-ON
*8 R223 *9 R227 *10 R251
2.2k 470 1.2k O-TU-CE
(EX6/EX6T) (EX6/EX6T) (EX6/EX6T)
O-TU-DI
22k 0 1.5k
(EX9/EX9T) (EX9/EX9T) (EX9/EX9T) O-TU-CLK
I-TU-ANSD
I-TU-DO
I-LEVEL
EX9/EX9T
9
Q654
2SC3052F-T1-LF
C657
SUBWOOFER
1
BAND-PASS FILTER
50V
3
IC B/D
IC201
STK433-320-E
9 10 11 12 13 14 15 16 17 18 19
C212
3p
C205
100p
R212
C206
47k
100p
C291
R291
4700p
100
R211
47k
C238
3300p
C211
3p
C225 C204
100p 0.01
R206
47k
C237
3300p
R216
0.22
2W
C203
*1
R231
47k
R205
47k
C231 C290
3p 0.1
C223
470p
R225
47k
R204
10k
R223
*8
R221
R203
*7
*6
R109
R210
470
EX6/EX6T 0
2W
R110 3STATE-OUT
470
2W HP-SW
33 33
11 12
CN605 EX6T/EX8T/EX9T
9P
TP691
1 7V
TP692
2 PB-Lch
TP693
3 PB-Rch
4 A-GND
DECK
J
TP694
5 REC-Lch BOARD
TP695 CN502
6
REC-Rch
(EX6T/EX8T/EX9T)
7 M-GND
(Page 36)
TP696
8 M9V
TP697
Q609 9 I-TP-STATE
0.6
R874
10k
CN602
21P
21 I-TP-STATE
TP623
20 O-TP-REC-MUTE
TP621
19 O-POWER
TP620
18 O-SP-RELAY/TP-ON
TP619
17
O-TU-CE
TP618
16 O-TU-DI
TP617
15 O-TU-CLK
TP616
14 I-TU-ANSD
TP615
13 I-TU-DO
TP614
12 I-LEVEL
PANEL
E
TP613
11 O-FUNC-DATA BOARD
TP612 CN301
10 O-FUNC-CLK
(EX6T/EX8T/EX9T)
9 D-GND
(Page 29)
TP611
8 CD/USB-L
7 CD-A-GND
6 CD-A-GND
5 CD-A-GND
TP610
4 CD/USB-R
3 9V
2 M-GND
1 CD-M-GND
CN603 EX6/EX8/EX9
19P
19 O-POWER
18 O-SP-RELAY/TP-ON
17
O-TU-CE
16 O-TU-DI
15 O-TU-CLK
14 I-TU-ANSD
13 I-TU-DO
12 I-LEVEL
11 O-FUNC-DATA
PANEL
D
10 O-FUNC-CLK BOARD
CN303
9 D-GND
(EX6/EX8/EX9)
8 CD/USB-L
(Page 29)
7 CD-A-GND
6 CD-A-GND
5 CD-A-GND
4 CD/USB-R
3 9V
2 M-GND
1 CD-M-GND
CN604
9P
TP631
1 AUDIO-L
2 A-GND
TP632
3 AUDIO-R
R117 R118
4 HP-GND
47 47 USB-JACK
TP633 G
5 HP-L BOARD
TP634 CN551
6 HP-R
(Page 30)
TP635
7 SP-RELAY
TP636
8 HP-SW
9 GND
HCD-EX6/EX6T/EX8/EX8T/EX9/EX9T