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CAS-1
CAS-1
42
42
5-7. SCHEMATIC DIAGRAM - MAIN Section (3/5) -
• See page 54 for IC Block Diagrams.
(2.7)
(3.2)
(3.9)
(4.9)
(7)
(7)
(-6.8)
(2.4)
(2.4)
(0.1)
(0)
(-6.8)
(2.4)
(2.4)
(0.1)
(0)
(0.1)
(-6.8)
(0.1)
(0)
(0)
(7)
(7)
(2.4)
(0.1)
(2.4)
(2.4)
(0.1)
(2.4)
(7)
(0)
(0)
(7)
(0)
(-6.8)
(0)
(0)
(0.1)
(7)
(0)
(0)
(7)
(0)
(-6.8)
(0)
(7)
(0)
(-6.8)
(-6.8)
(0)
(0)
(0.1)
(0.1)
(0.7)
(4.9)
(4.9)
(4.9)
(2.4)
(2.4)
(2.4)
(2.4)
(2.4)
(1.6)
(0)
(0)
(3.2)
(3.2)
(1.6)
(1.6)
(3.2)
DAC-SCL
DAC-SDA
DAC-XRST
EVOL-CS
HP-RY
EVOL-CLK
EVOL-DATA
DAC-LRCK
DAC-BCK
DAC-DATA
DAC-MCK
DGND
HP-DET
DAC-ZERO-DATA
NJM2871BF33-TE2
IC402
1
CTRL
2
GND
3
NB
4
OUT
5
IN
10k
R403
NJM4580M-(TE2)
IC406
1
2
3
4
VSS
5
6
7
8
VCC
NJM2119M(TE2)
IC409
1
2
3
V–
4
5
6
7
V+
8
NJM4580M-(TE2)
IC404
1
2
3
4
VSS
5
6
7
8
VCC
NJM4580M-(TE2)
IC405
1
2
3
4
VSS
5
6
7
8
VCC
+
–
RY400
50V
22
C436
50V
22
C437
0.001
C461
0.001
C462
10k
R402
22
R407
3.3k
R465
100
R412
R460
100k
0.1
C400
10k
R416
TC7SH08FU
IC400
1
2
3
GND
4
5
Vcc
560
R426
22
R404
560
R430
22
R405
560
R425
22
R413
680
R429
560
R427
680
R428
2PD601ART
Q405
22
R408
680
R432
47k
R478
680
R434
DA2J10100L
D406
25V
100
C439
220k
R437
220k
R436
2.2k
R458
100
R410
2.2k
R477
560
R433
1k
R463
10k
R461
63V
22
C440
560
R435
560
R424
1k
R464
560
R431
10k
R462
10k
R401
10k
R467
22
R406
3.3k
R466
PCM1795DBR
IC401
ZEROL
1
ZEROR
2
MSEL
3
LRCK
4
DATA
5
BCK
6
SCL
7
DGND
8
VDD
9
MS
10
MDI
11
MC
12
MDO
13
RST
14
VCC2R
15
AGND3R
16
IOUTR+
17
IOUTR–
18
AGND1
19
IREF
20
VCOMR
21
VCOML
22
VCC1
23
AGND2
24
IOUTL+
25
IOUTL–
26
AGND3L
27
VCC2L
28
10k
R468
10k
R438
4P
CN400
HP DET
1
R-CH
2
GND
3
L-CH
4
NJW1194
IC407
1
In A1
2
In A2
3
In A3
4
In A4
5
GND
6
DCCAP_A
7
GND
8
OUT
A
9
VDD OUT
10
DA
TA
11
CLOCK
12
LA
TCH
13
GND
14
Tone_T
r1a
15
Tone_Ba1a
16
Tone_Ba2a
17
Tone_Ba2b
18
Tone_Ba1b
19
Tone_T
r1b
20
GND
21
V–
22
V+
23
ADR0
24
ADR1
25
OUT
B
26
GND
27
DCCAP_B
28
GND
29
In B4
30
In B3
31
In B2
32
In B1
R459
100k
270p
C420
0.1
C449
270p
C418
2.2k
R457
0.1
C403
0.1
C405
0.1
C412
10k
R440
0.001
C424
0.1
C411
0.001
C425
25V
100
C438
270p
C419
270p
C421
0.001
C423
0.1
C402
0.47
C409
10
C401
0.1
C408
0.001
C422
10
C404
39
16V
C410
DA2J10100L
D407
DA2J10100L
D408
100
R411
22
R439
22
R441
22
R442
DA2J10100L
D405
FB400
MM1836A50NRE
IC403
1
Cont
2
GND
3
NC
4
V
out
5
Vi
n
22
R409
AHP+7V
AREGGND
AHP–7V
AGND
0.1
C467
TPA6120A2DWPR
IC408
LVCC–
1
2
LVCC+
3
4
5
NC_6
6
NC_7
7
NC_8
8
NC_9
9
NC_10
10
NC_1
1
11
NC_12
12
NC_13
13
NC_14
14
NC_15
15
16
17
R
VCC+
18
19
R
VCC–
20
COM400
15k
R484
10k
R485
R486
10k
CL416
CL418
CL419
CL420
CL421
CL422
CL417
CL424
CL423
CL429
CL427
CL426
CL428
CL430
1SS362-TE85L
D402
1SS362-TE85L
D401
1SS362-TE85L
D400
2200p
C446
0.0022
C479
470p
C480
1000p
C478
CL403
CL404
CL405
CL406
CL407
CL408
CL409
CL411
CL412
CL413
CL414
CL410
CL402
16V
100
C413
16V
39
C416
16V
39
C415
16V
39
C417
1k
R418
1k
R417
16V
39
C407
16V
39
C414
CL415
CL401
COM650
COM651
DCDC_4V
E
ET402
50V
100
C426
50V
100
C427
0.001
C433
0.001
C432
0.0022
C430
680
R420
680
R422
0.0022
C431
CL431
CL432
680
R423
680
R421
CL433
CL434
0.0022
C435
0.0047
C428
CL435
0.0047
C429
0.0022
C434
63V
22
C442
63V
22
C444
CL450
CL437
CL441
CL439
CL443
CL445
CL468
CL469
CL467
CL444
CL470
CL471
CL472
CL440
CL442
CL446
220p
C441
220p
C443
0.001
C445
CL438
CL436
CL449
CL447
CL448
CL452
CL453
CL455
CL451
CL454
CL457
63V
22
C460
63V
22
C458
100k
R471
22k
R469
1/2W
10
R475
100k
R474
1
C464
0.1
C448
1
C463
1/2W
10
R476
100k
R472
22k
R470
100k
R473
CL456
63V
22
C459
63V
22
C457
CL458
CL459
1W
100
R479
CL460
CL461
CL462
CL463
1000p
C472
100V
1000p
C481
2200p
C482
1000p
C468
C466
470p
0.1
C465
E
ET401
CL464
CL465
CL466
IC401
D/A CONVERTER
IC400
GATE SWITCH
IC402
+3.3V REGULATOR
IC403
+5V REGULATOR
IC404
LOW-PASS FILTER
IC405
IC406
MIX AMP
ELECTRICAL VOLUME
IC407
HEADPHONE AMP
IC408
DC SERVO
IC409
MAIN BOARD (3/5)
CN161
>04S
HP
BOARD
BOARD
MAIN
(4/5)
>009S
(CHASSIS)
(CHASSIS)
BOARD
MAIN
(2/5)
>006S
BOARD
MAIN
(2/5)
>008S
LOW-PASS FILTER
RELAY DRIVE
100V
-2
-1
10
11
12
13
14
15
G
16
H
17
I
18
F
M
1
C
J
D
6
E
K
L
2
B
3
A
4
5
7
8
9
1000p
C447
470p
100V
100V
C450
(US, CND, CH, TW, TH)
(CEL, KR)
(Page 41)
(Page 41)
(Page 43)
Ver. 1.2
Note 2:
The MAIN board has been changed in the midway of production.
When the complete MAIN board is replaced, it might be necessary
to note the combination with the complete AMP board.
Refer to service manual supplement-1 for detail.
Note 1:
IC408 on the MAIN board cannot replace with single. When
this part is damaged, replace the complete mounted board.
(Page
45)
Summary of Contents for CAS-1
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