HMD-A400 - Sony Audio Service Manual (repair manual). Page 28

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5-17
5-18
1
A
B
C
D
E
F
G
H
I
2
12
13
11
10
9
8
7
6
5
4
3
•
Divided circuit diagram
One sheet of D board circuit diagram is divided into six
sheets, each having the code D-
a
 to D-
f
. For example, the
destination ab1 on the D-
a
 sheet is connected to ab1 on the
D-
b
 sheet.
b
1
a
Ref. No.
Circuit diagram division code
58.0 Vp-p (V)
qa
1.8 Vp-p (V)
qs
1k Vp-p (H)
qd
62.0 Vp-p (H)
qf
12.0 Vp-p (H)
qg
120 Vp-p (H)
qh
• D - 
b
  BOARD  WAVEFORMS
6.0
6.1
5.3
5.4
92.7
157.5
15
3.3
2.9
56.4
4.2
16
58.9
57.8
3.1
-0.4
92.8
2.5
1.2
95.6
0.6
95.7
96.2
102.9
-77.3
0
43.9
0
44.6
0.6
0.6
74.8
1.0
0.4
0.5
16.4
15.8
16.4
16.4
1.9
1.4
-27.6
14
13
12
11
S
S
1
2
3
4
10
9
8
7
5
6
D502
C556
R524
C515
L503
10mH
R525
R526
R580
D504
D506
R531
C555
R582
R587
R530
R583
R532
R527
D518
C541
R518
C538
D503
FB501
T502
5
4
3
2
10
9
8
7
1
6
T503
Q501
R540
Q515
Q516
Q520
Q521
Q523
Q527
Q503
Q511
Q513
C523
Q502
MTZJ15A
100
250V
8.2k
0.1
250V
120
R5001
82
4.7k
100
100V
C542
0.022
1SS119
1SS119
4.7k
0.1
50V
2.7k
1.3
2W
1.3
2W
47
1/2W
10k
R528
120
1/2W
D517
1SS119
1SS119
R568
10k
D539
1N4148
D541
1N4148
R567
10k
4.7
510k
R560
150k
R517
10k
0.1
100V
31DF4
D535
1N4148
3µH
SFS9634
SWITCHING
1M
1/2W
2SC945
B DRIVE
2SA733
B DRIVE
2SC945
H DRIVE
2SA733
H DRIVE
2SD1640Q
H DRIVE
2SC945
H DRIVE
2SC5445
H OUT
H2N6718L
SW
2SA733
BOP CONT
Q512
RN1203
BOP CONT
Q510
2SA733
BOP CONT
D507
SB140
470
25V
IRFU110
H DRIVE OUT
ab2
ab1
ab3
bc1
+200V
V DY+
V DY-
+12V
D
-b
(DEFLECTION)
+12V
+12V
B-SS3578<U/C>-D..-P2-EPS05
FB504
3µH
ab4
bc2
HDRV
HFLB
BDRV
BOP
HUNLOCK
MUTE
C543
1000p
100V
+17V
D510
1SS119
H-DRIVER
BLK
BRI
+5V
D519
PS104R
1.3k
1W
R533
C518
1500p
1kV
C517
200p
3kV
D511
D512
C549
R535
C548
R536
C547
R557
R534
L506
R565
C550
Q517
Q518
Q519
220
25V
1k
1W
220
25V
1.1k
2W
R564
220k
0.056
250V
2.7
2W
2.7
2W
R5128
22
1/2W
R5127
3.3
1/2W
L508
0.12
1/2W
10mH
200
0.01
250V
2SD669A
H CENT DRIVE
2SB649A
H CENT DRIVE
2SC2688
H CENT
ER206
ER206
H-CENTER/O
ABL/PWM
FB508
10µH
FB507
10µH
CN501
6
V DY+
V DY-
H DY-
H DY-
H DY+
H DY+
5
4
3
2
1
6P
V.DY
H.DY
V DY+
V DY-
R543
L505
270
1W
C521
4300p
1.8kV
D508
DD84RC
L504
RY501
32µH
4.5µH
2
5
1
3
4
D514
PG104R
D524
1SS119
RELAY DRIVE
Q540
2SC945
R5117
33
R595
4.7k
C582
0.1
D526
1SS119
C565
2.2
250V
R597
51
1W
R544
100k
1/2W
L501
1.2mH
C524
0.1
250V
S
Q524
IRF640
S-CAP CHANGE
R538
R539
Q505
C560
4.7k
10k
2SC945
S-CAP
CHANGE
0.1
C557
0.1
+12V
R5115
100k
1/2W
C525
0.12
250V
S
Q536
IRF640
S-CAP CHANGE
R5119
R5118
Q537
4.7k
10k
2SC945
S-CAP
CHANGE
+12V
R545
100k
R546
100k
1/2W
C526
0.39
250V
C522
0.24
400V
C527
0.2
250V
C566
1.6
250V
S
Q506
IRF640
Q507
IRF640
Q509
2SC945
S-CAP CHANGE
R547
R549
Q508
C528
4.7k
10k
R550
10k
CS4
R548
4.7k
2SC945
S-CAP
CHANGE
0.1
+12V
+12V
S
C529
0.1
CN502
CS2
CS3
CS0
CS1
1
2
3
4
4P
D525
HZ6C3
SG501
C592
R573
R572
R575
C593
R577
T504
Q530
1.2KV
4.7
35V
36k
R576
51k
2W
C595
0.1
400V
10
3.3k
R5131
820k
0.22
C585
220p
1kV
120
2SC2688
DF AMP
DF AMP
2
5
7
11
+12V
R574
15k
+12V
+12V
C583
33
100V
+12V
+12V
+12V
R5130
10k
Q504
2SC945
R5129
1k
R5134
D520
1N4148
R5104
27k
D530
1N4148
D513
BYV26C
D534
1N4148
D531
1N4148
+80VF
C573
0.1
bc5
bc4
bc3
bd1
bc6
G1/VBLK
FOCUS
R409
3k
Q401
2SC945
SW
C401
0.1
250V
C575
0.01
R408
3.3k
1/2W
R523
10k
R516
4.3k
R509
3.6k
R512
1k
C514
0.1
C576
0.1
C568
22p
2kV
D527
HZ12A1
Q535
RN1203
Q532
2SA733
D523
1SS119
C574
330
R585
5.1k
R5102
13k
R5103
10k
Q531
KSP92
R5113
51k
R5111
20k
Q528
2SC945P
ABL CONT
Q529
2SC945P
ABL CONT
R5110
470
R5108
18k
R5112
6.8k
R5109
1M
R5107
10k
D592
1SS119
C590
0.1
Q533
2SA733
R5106
470
C591
0.1
L502
100µH
R586
124k
R589
10k
R590
1M
D532
Z10-160B
C577
22
250V
D522
PG104R
TO A BOARD
CN304
R5009
2.7
2W
Q543
2SC3421
Q547
2SC945
Q548
2SA733
Q514
2SC2362
Q549
RN1203
Q544
R5010
470
R578
1k
C584
270p
R5126
1.8k
2SA1358
R591
5.6k
D540
1N4148
C5200
47
160V
R5200
51
1W
L5200
1.2mH
FB505
2µH
R537
CN503
15k
R566
10k
1/2W
R5202
3k
Q5202
2SC945
Q5201
RN1203
C5201
10
10V
R5201
1.1k
D5201
1N4148
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