Schematic Diagram - Audio/Hp Boards - Sony SCD-XB770 Service Manual

5-16. SCHEMATIC DIAGRAM – AUDIO/HP Boards – •
C331
D308 C332
47
1SS367-T3 22000p
63V
R329 22
L310
N.F
CLOCK
BUFFER
C303
18p
IC304
SN74HCU04APWR
CN302
19P
GND
128FS
GND
L401 C304 R325
100 18p 100
SDATAL
A1
GND
L501
100
SDATAR
A2
GND
L301
0
64FS
GND
R310
82
256FS
GND
L302
220
CDBCK
A3
(Page 38)
GND
L303
220
CDLRCK
A4
GND
L304
220
CDDATA
A5
GND
CDDATA_SUB
MODE
D306
1SS367-T3
CN303
19P
MULTI
D307 R305
1SS367-T3 0
SHIFT
GND
R306
0
DATA
GND
R307
0
LATCH
GND
INIT
GND
L402
100
SDATALS
GND
L502
100
SDATARS
GND
(Page 38)
L403
100
SDATAC
GND
L503
100
SDATALF
GND
L311
33 H
+3.3V-D
AMUTE C336
C337
47
100000p
63V
•
See page 48 for Waveforms. See page 51 for IC Block Diagram.
IC310
BA033T +3.3V REGULATOR
O I
G
C338
470 C339 C340
25V 100000p 100000p
R461
C341 6.8k
100000p
C306 C401
R313 470 C305 C307 47
330 25V 100000p 470 63V
25V
R322
0
C412
R401
680p
10k
100V
R330
C512
22 R501
680p
10k
100V
IC301 C501
CXD9658N 47 R561
63V 6.8k
C344
10
R311 R312 50V
330 330
DIGITAL FILTER,
D/A CONVERTER
C308
C309
47 C342
100000p
25V 100000p
C421
47 R471 R422
C311
25V 6.8k 5.1k
47
25V
C428
R421
680p
10k
100V
C528
R521
680p
10k
100V
DIGITAL FILTER,
D/A CONVERTER
IC302
CXD9658N
C521
47 R571 R522
25V 6.8k 5.1k
C345
10
50V
R481 R442
6.8k 5.1k
C312 C441
47 C313 47
25V 100000p 25V
C315
47
25V
C448
R441
680p
10k
C343 100V
100000p
C548
R541
680p
10k
100V
DIGITAL FILTER,
D/A CONVERTER
IC303
CXD9658N
C541 R581 R542
47 6.8k 5.1k
25V
C346
10
50V
D301 D302
1SS367-T3 1SS367-T3
DTA143TKA-T146
Q303
MUTING
DTA143TKA-T146
CONTROL
MUTING C333
R328 C334
2200 SWITCH
CONTROL 4.7k 100000p
6.3V
SWITCH
R324 R315
100k 100k
C402
330p
100V
C404
0.01 R410
R402 R403 100V 100
8
5.1k 5.1k R407 R408
5
560 560
7 R411 100
6
C405
47
IC305(1/2) R406
63V R409 R412
NJM2114M-TE2 100k
4.7k 4.7k
C403 R404 Q401 Q402
R405
470p 10k 2SC3624A 2SC3624A
6.2k
100V
MUTING MUTING
R505 R504
C503
6.2k 10k
470p
100V
R506
R509
100k
Q501 4.7k
2SC3624A R512
Q502
C505 4.7k
4 MUTING 2SC3624A
47
2
R502 R503 63V MUTING
1
5.1k 5.1k
R511 100
R507 R508
3
560 560
IC305(2/2) R510 100
NJM2114M-TE2
C504
0.01
100V
C502
330p
D305
100V
1SS367-T3
ANALOG
LOW-PASS
FILTER
D304
1SS367-T3
C422
330p
100V
C424
0.01
R423 100V
8
5.1k R427 R428 R430
5
560 560 100
7
C425
6
47
IC306(1/2) 63V R429 R431
NJM2114M-TE2 3.9k 3.9k
C423 R424 Q421 Q422 C318
R425 R426
470p 10k 2SC3624A 2SC3624A
6.2k 100k
100V
MUTING MUTING
C523
R525 R526
470p R524 C319
6.2k 100k
100V 10k
R529 R531
C525 Q521 3.9k Q522 3.9k
47 2SC3624A 2SC3624A
63V
MUTING MUTING
4
2
R523
1
5.1k
C524 R527 R528 R530
3
IC306(2/2) 0.01 560 560 100
NJM2114M-TE2 100V
C522
330p
100V
ANALOG
LOW-PASS
FILTER
C444
C442 0.01
R443 330p 100V
5.1k 8 100V R447 R448 R450
5
560 560 100
7
C445
6
47
IC307(1/2) 63V R449 R451
NJM2114M-TE2 3.9k 3.9k
C443 R444 Q441 Q442
R445 R446
470p 10k 2SC3624A 2SC3624A
6.2k 100k
100V
MUTING MUTING
C543
R545 R546
470p R544
6.2k 100k
100V 10k
C545
47
63V R549 R551
Q541 Q542 C321
3.9k 3.9k
2SC3624A 2SC3624A
4
2
MUTING MUTING
1
C544 R547 R548 R550
3
R543 0.01 560 560 100
IC307(2/2)
5.1k 100V
NJM2114M-TE2
C542
330p
100V
ANALOG
LOW-PASS
FILTER
41 41
Q301
C322 R327
IC308(1/2) 0.47
NJM4580E-D-TE2 50V
R413 R414
220k 33k R418
3 8
56
1
C408
10000p L404
2
C316 R416 Q403 R419
C409 R415 R417
47 820k 2SC3624A 4.7k
33p 200k 270k
25V
R516
C509 R515 R517 Q503
820k
33p 200k 270k 2SC3624A C323
C317
0.47
47
50V
25V
R519
4.7k
R518
4
6
56
7
5
R513 C508 R514
220k 10000p 33k IC308(2/2) Q403,503
NJM4580E-D-TE2
MUTING
HEADPHONE
AMP
R326
100k
47
25V
47
25V
(CHASSIS)
OPTICAL
TRANSCEIVER IC309
GP1F38T
OUT
L308 C335 DIGITAL(CD)
3.3 H 220 C330
IN OUT
16V 100000p
L307 OPTICAL
GND
3.3 H
R317
1.8k
Q302
2SC1623-T1-L5L6
WAVE
R316
SHAPER
22
C320
C328
47
R320 1
25V
68 50V
C324 L309 R319 C327 R321
R318
100 220 220p 100k
1.8k
16V
C325
22000p
C329
100000p
(CHASSIS)
47
25V
GND
D/O
+3.3V
CN304
3P
(Page 38)
SCD-XB770
CN301
6P
A+7V
AGND
A-7V
(Page 47)
DAC+5V
DACGND
POWER MUTE
A+UR
HP GND
A-UR
(Page 47)
CN306
3P
L605 L601
CN305 CNP601
0 N.F
3P 3P -1
L504
R R J601
L602
N.F PHONES
L L
G G -2
L606
0
L305
RV601
1k/1k
L607 L603 L604
0 N.F JW
RV601
C603 C604
PHONES LEVEL
1000p 22000p
C601
1000p
(CHASSIS)
J301
2P
L
ANALOG
2CH OUT
R
L
FRONT
R
J302
6P
L
ANALOG
SURR
5.1CH OUT
R
CENTER
SUB WOOFER
J303
1P
DIGITAL(CD)
OUT
COAXIAL