Read Sony HCD-RG30 / MHC-DX20 / MHC-RG30 Service Manual online
21
21
HCD-DX20/RG30
MAIN SECTION
R-CH
RESET
: FM
: CD
• Signal Path
• RCH is omitted
: PB (DECK A)
: PB (DECK B)
: REC (DECK B)
TUNER
SECTION
CD
SECTION
MD/VIDEO
(AUDIO IN)
(AUDIO IN)
VIDEO
OUT
GAME
IN
J702
MIC
RV703
MIC
LEVEL
L
R
L
R
24
OUT L
MUTE
Q301
Q301
MUTE
CONT
CONT
Q361,362
POWER
AMP
IC501
1
12
6
7
MUTE
DRIVE
DRIVE
Q581
MUTE
BUFFER
Q503,504
OVER LOAD
DETECTOR
Q501
D502
DC
DETECT
Q381,382
PROTECT
CONT
Q383
RERAY
DEIVE
Q384,385
PROTECT
SWITCH
Q386,387
MUTE
CONT
CONT
Q365
MUTE
Q363
PHONES
R CH
R CH
L
R
JK302
SPEAKER
IMPEDANCE
USE 6-16
Ω
67 B REC REV
89 A SHUT
71 B PLAY
70 A PLAY
69 B HALF
68 A HALF
A TRIG
DRIVE
CAPSTAN MOTOR
CAPM+
RV661
MOTOR
SPEED
MOTOR
SPEED
B-SOL
A-SOL
REC(REV)
A-PHOTO
A-MODE
B-MODE
A-HALF
B-HALF
DRIVE
Q605,606
Q601,602
B TRIG
DRIVE
DRIVE
Q603,604
A TRIG
60
B TRIG
61
CAP M CONT
65
POWERKEY
74
POWER
97
LED
34
LED
33
LED
32
LED
31
LED
30
LED
29
LED
28
LED
27
KEY 0
22
KEY 1
21
KEY 2
20
DVD 5.1
26
DISPLAY KEY
73
LED
DRIVER
FLUORECENT
INDICATOR TUBE
FLD1
Q701
EVER 5.7V
F1
F2
VP (-30V)
F2
VP (-30V)
IC401(2/2)
MASTER CONTROL
IC701
DISPLAY CONTROL
83
LINE MUT
84
STK MUT
88
FRONT-RELAY
85
PROTECT
10
XC IN
11
XC OUT
15
X IN
13
X OUT
32.768kHz
X601
16MHz
X602
3
X1
4
X2
5MHz
RES701
T911
JW911
S901
F919
JW913
DX20: AR,E2,
E51,EA,SP
E51,EA,SP
F914
DX20: AR,E2,
E51,EA,SP
E51,EA,SP
DX20: AR,E2,E51,EA,SP
-V
REG
+5V
REG
Q911,D911-913
D541
VP (-30V)
+B
-B
POWER
AMP
D681-684
EVER +5.7V
F1
AC1
AC1
AC3
AC3
AC4
AC4
F2
D902-905
AC
IN
IN
RELAY
DRIVE
DRIVE
Q901
IC901
T901
3
1
+5.7V
REG
1
3
RY901
+12V
REG
3
1
+9V
REG
3
1
CD POWER
SWITCH
+5V
REG
3
1
IC681
Q681,682
IC682
IC683
IC684
D+5V(SW)
A+5V(SW)
RDS +5V
BD +5V
EVER +5V
EVER +5.7V
D +5V
+5V(SW)
MIC +12V
+9V
M+7V
+7V
D687-690
D686
D667
D661
D669
D670
STBY RELAY 86
38
CD POWER
RESET 12
3
1
Q661
IC661
D383
D691-693
D664
D543
D542
JW912
JW6
JW5
JW3
JW1
66 B REC KEY
REC(FWD)
90 B SHUT
B-PHOTO
A
B
R-CH
L-CH
LOUT
L-CH
J301
J705
R-CH
R-CH
L-CH
R-CH
ERASE
L-CH
L-CH
JK704
INPUT SELECT
TONE/VOL CONT
IC301
TUNER L
43
CD L
42
MD L
47
32
24
OUT R
R CH
31
MIC
56
TC RELAY
BUFFER
Q213
MIC AMP
IC702
(1/2)
AMP
IC702
(2/2)
R-CH
19
6
9
2
1
11
5
AMC
DETECT
REMOTE
CONTROL
RECEIVER
RECEIVER
SEN701
Q210,211
D203,204
D203,204
A/B
Q217
Q227
Q222,225
D206
MIC +12V
Q220,221
BIAS OSC
Q223,L201
Q224,228
5
6
81
80
82
91
79
72
76
77
75
A
B
PB
REC
IC201
Q214
39
38
37
36
35
34
TAPE/ L
45
INLE GAME
49
DPLL1
57
D302
BPOUT
C
B
A
SCK
SI
–A DECK–
HP101
PLAYBACK
HEAD
–B DECK–
HRPE101
RECOD/
PLAYBACK/
ERASE
HEAD
CASETTE
DECK
UNIT
BIAS
PB A/B
AMS
REC-MUTE
3878-DAT
3878-LAT
3878-CLK
SP-LATA
SP-LATB
SP-LATC
SP-VACS
7
REC/ PB AMP
VIDEO
AUDIO
MOTOR H
MOTOR L
S701
`/1
D701
`/1
S726
DISPLAY
37-58 61-68
69-80
LED DRIVER
Q702-710
KEY MATRIX
S713-725
S727-738
S727-738
S702,704,711
S712
DX20
VOL
13
VOL
14
VDD
25
REMOTE IN
4
RESET
M-RESET
6
41
SBSY
S-BSY
10
3
S
S
-LCK
7
2
S
S
-OUT
9
1
S
S
-IN
8
100
HEADPHONES
17
Q701-712,716-720
ROTARY
ENCODER
VR701
VOLUME
+5V (SW)
D713
EVER +5V
D685
RG30/DX20:KR,TH
DX20:MX
DX20: AR,E2,
E51,EA,SP
EXCEPT DX20:MX
DX20: MX
DX20: KR,TH/RG30
DX20: AR,E51, EA, SP, MX
DX20: MX
JW2
JW4
S901
VOLTAGE SELECTOR
230-240V
r
220V
r
120V
RY371
JACK701
F920
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