Sony HCD-RG30 / MHC-DX20 / MHC-RG30 Service Manual ▷ View online
29
29
HCD-DX20/RG30
6-10. SCHEMATIC DIAGRAM – MAIN SECTION (5/5) –
Q381
Q382
Q385
Q386
Q387
C371
C372
C373
C374
C686
C687
C688
C690
C689
C691
C698
C697
RY371
R383
R384
R385
R386
R387
R388
R389
C381
C375
C376
L371
L372
C382
C383
C685
L671
C676
C674
C675
CN403
R377
R378
R379
R380
JW8
JW9
C683
C684
C672
C673
C678
C679
C693
C694
C671
C677
D686
D383
D372
D685
JK302
Q384
Q383
D687
D688
D689
D690
D694
D695
C699
JR638
CN102
FB2 0
µ
H
0
µ
H
100
µ
H
JR640
Q682
R681
D681
D682
D683
D684
Q681
R382
R381
CN402
FB1
2SC2785 2SC2785
2SC2785
2SC2785
2SC2785
0.1
0.1
0.1
0.1
10
50V
1000
6.3V
10
50V
10
50V
100
10V
100
10V
10
50V
2200
25V
10k
10k
33k
22k
4.7k
22k
5.6k
100
10V
1000p
1000p
2.2
50V
2.2
50V
2200
16V
100
10V
100p
470
6.3V
10
1/2W
10
1/2W
10
1/2W
10
1/2W
0.1
0.1
100p
100p
100p
100p
0.01
0.01
1000
6.3V
470
10V
1SS355TE
1SS355TE
1SS355TE
1SS355TE
DTC 114ES
2SA1175
11ES2N
11ES2N
11ES2N
11ES2N
11ES2N
11ES2N
470
16V
0
19P
0
DTC114ES
0
11ES2N 11ES2N
11ES2N 11ES2N
RT1P137S
13P
17
46
47
36
37
37
38
39
40
48
25
24
28
27
30
41
29
26
22
23
23
X3
16
44
35 34
21 20
18
19
32
33
34
34
40
42
43
35
37
H
38
F
G
42
*
*
PH671
CD DIGITAL
OUT
+5V
OUT
IC681
UPC7805A
UPC7805A
IC682
IC683
UPC7812A
IC684
V
F
V
F
-B
V
P
L O
U
T
R
O
U
T
S
P
G
N
D
SP
G
N
D
PW
G
N
D
A
C
4
AC
4
A
C
3
AC
3
STBY
PROTECTOR
L OUT
R OUT
A GND
A GND
+12V GND
REG+12V
FAN ON
EVER +5V
D GND
STK MUT
D GND
STK MUT
+7V
+B SWITCH
Q681,682
+12V REG
+5V REG
+5V REG
OUT
IN
G
OUT
IN
G
OUT
IN
G
OPTICAL
OUT
IN
G
+9V REG
SCOR
SOCK
SENS
SOSO
HOLD
CLOK
XLT
DATA
XRST
A+5V(SW)
ROUT
AGND
LOUT
DGND
DOUT
D+5V(SW)
+5V
SOCK
SENS
SOSO
HOLD
CLOK
XLT
DATA
XRST
A+5V(SW)
ROUT
AGND
LOUT
DGND
DOUT
D+5V(SW)
+5V
MGND
SPEAKER
USE 6-16
Ω
+
-
-
+
-
AVDD
D
V
D
D
C
D
/R
C
D
/L
R
L
IMPEDANCE
DRIVE
RELAY
Q384,385
PROTECT
SWITCH
PROTECT
SWITCH
PROTECT
SWITCH
PROTECT
Q381,382
DETECTOR
M5F7809AFH
GND
RG30
DX20
DX20
47k
RG30
DX20
DX20
*R382
56k
RG30
DX20
DX20
56k
47k
*R381
RG30
MAIN BOARD(4/5)
MAIN BOARD(3/5)
(Page 28)
(Page 27)
BOARD
CN502
POWER AMP
(Page 31)
BOARD
BD
CN101
(Page 23)
MAIN
BOARD(4/5)
(Page 28)
BOARD
CN403
POWER AMP
(Page 31)
MAIN BOARD(2/5)
MAIN BOARD(4/5)
MAIN BOARD(3/5)
MAIN BOARD(3/5)
(Page 26)
(Page 28)
(Page 27)
(Page 27)
MAIN BOARD(4/5) (Page 28)
30
30
HCD-DX20/RG30
6-11. PRINTED WIRING BOARD – POWER AMP SECTION –
• See page 19 for Circuit Boards Location.
Ref. No.
Location
D501
B-5
D502
B-4
D541
C-5
D542
A-3
D543
A-3
D551
B-4
IC501
A-5
Q501
B-5
Q503
B-5
Q504
B-5
Q551
B-4
Q581
B-5
• Semiconductor
Location
POWER AMP BOARD
11
(13)
21
(21)
DX20
1-681-448-
D
F
MAIN BOARD
(Page 24)
MAIN BOARD
(Page 24)
RG30
RG30/
DX20:KR
C
TRANS BOARD
(Page 34)
(CHASSIS)
DX20
RG30/
DX20:KR
RG30/DX20:KR
(CHASSIS)
E
E
E
E
E
R513
R519
_
+
1
13
1
13
1
13
2
3
4
5
6
7
A
1
B
C
D
31
31
HCD-DX20/RG30
6-12. SCHEMATIC DIAGRAM – POWER AMP SECTION –
Q504
Q501
Q551
Q503
C542
C592
C541
C591
C501
C503
C504
C511
C512
C543
R501
R502
R512
R561
CN501
R505
R506
D501
D502
R507
C507
C508
D551
D542
D543
C545
C544
JW501
C551
R551
C553
C554
C559
R552
R581
R582
R514
R515
R516
R517
R556
R557
C557
C558
R559
C509
R511
JW513
EP501
EP502
C513
C502
C552
R503
R553
R504
Q581
R509
R513
R519
R510
R508
R558
R560
R555
R541
R591
D541
CN502
CN503
R554
R518
2SC1841
2SC1841
2SC1841
2SA988
2200
50V
2200
50V
0.1
100V
0.1
100V
10
50V
100p
22
50V
0.01
0.001
0.1
1k
56k
1
1/4W
100
1/4W
1k
15k
1SS133T
1SS133T
100k
0.068
0.068
1SS133T
11ES2
11ES2
3300
35V
1000
25V
10
50V
1k
100p
22
25V
22
50V
56k
33k
33k
2.2k
22k
10k
2.2k
15k
100k
0.068
0.068
10
1/2W
22
50V
100
1/4W
2SC1841
10
1/2W
22k
22k
0.22
2W
0.22
2W
0.22
2W
0.22
2W
1k
22k
1/2W
22k
1/2W
D5SBA204101
13P
13P
10k
*
*
*
*
*
*
*
+VCC
PRE
BIAS
+VCC
-VCC
CH1 IN
CH1 NF
CH1 +VE
CH1 -VE
CH2 +VE
CH2 -VE
PRE -VCC
SUB GND
CH2 NF
CH2 IN
PROTECTOR
L OUT
R OUT
A GND
+12V GND
REG+12V
FAN ON
EVER +5V
D GND
STK MUT
VF
VF
-B
VP
L OUT
R OUT
SP GND
SP GND
PW GND
AC4
AC4
AC3
AC3
AC4
AC4
AC4
AC3
AC3
VF
VF
VF
VP
D GND
EVER +5V
STBY RELAY
STBY RELAY
AC1
GND
GND
AC1
IC501
POWER AMP
(CHASSIS)
(CHASSIS)
RG30
*C513
0.1
0.001
0.001
RG30
DX20
DX20
*C502,552
470P
RG30
DX20
DX20
*R503
680
1.2k
RG30
DX20
680
1.2k
RG30
DX20
DX20
*R504
33k
56k
56k
MUTE
DRIVER
BUFFER
MUTE
Q503,504
PROTECTION
PROTECTION
DX20
DX20
RG30
DX20
DX20
33k
56k
56k
*R554
STK402-0705(1/2)
IC501
STK402-0705(2/2)
RG30/DX20:KR
*R553
RG30/DX20:KR
DX20KR
MAIN
BOARD(5/5)
(Page 29)
MAIN
BOARD(5/5)
(Page 29)
BOARD
TRANS
(Page 35)
32
32
HCD-DX20/RG30
6-13. PRINTED WIRING BOARD – PANEL SECTION –
• See page 19 for Circuit Boards Location.
Ref. No.
Location
D701
A-9
D702
B-2
D703
B-2
D704
A-2
D705
A-2
D706
B-9
D707
H-3
D708
F-4
D709
G-7
D710
G-7
D713
C-4
D716
B-2
D717
B-2
D718
A-2
D719
A-2
D720
B-9
D721
D-3
IC701
B-5
IC702
D-7
SEN701
A-7
Q701
A-8
Q702
B-3
Q703
B-3
Q704
B-3
Q705
B-3
Q706
B-8
Q707
F-3
Q708
G-3
Q709
G-6
Q710
G-6
Q711
B-6
• Semiconductor
Location
PANEL BOARD
KEY BOARD
11
(13)
11
(21)
1-681-447-
DX20 RG30
11
(13)
21
(21)
1-681-446-
DX20 RG30
DX20
J702
MIC
VR703
MIC LEVEL
(CHASSIS)
(CHASSIS)
A
MAIN
BOARD
(Page 24)
(CHASSIS)
>
M
x
X
Z
B
B
B
B
gG
>
M
E
VIDEO OUT BOARD
11
(13)
21
(21)
1-681-441-
DX20 RG30
1
1
2
L
R
(CHASSIS)
CLP4
CN714
JK705
VIDEO
VIDEO
OUT
2
IC702
1
2
6
7
5
4
3
1
J701
PHONES
VOLUME
S701,702,704-738
2
6
7
5
4
3
1
2
6
7
5
4
3
1
2
30
29
DX20
TUNER/BAND
E
E
E
E
61 60
20 21
80
1
41
40
E
DX20
1
4
5
8
1
13
1
13
DISPLAY
MUSIC EQ
EFFECT ON/OFF
GROOVE
GAME EQ
DISC SKIP
EX–CHANGE
DISC 1
DISC 2
DISC 3
OPEN/
LCOSE
P.FILE
ENTER
SPECTRUM
MOVIE EQ
TUNER MEMORY/PLAY MODE
E
E
KARAOKE PON
DX20
DIRECTION/EDIT
STEREO/MONO
REPEAT
+
E
3
1
AUDIO
INPUT
VIDEO
IC701
2
3
4
5
6
7
8
9
10
A
1
B
C
D
E
F
G
H
I
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