Sony HCD-RG80 Service Manual ▷ View online
21
21
HCD-DX50/RG80
6-2. BLOCK DIAGRAMS
TUNER/CD SECTION
A
MAIN
SECTION
B
MAIN
SECTION
IC202
: FM
: CD
• Signal Path
• R-CH is omitted due to same as L-CH.
: DIGITAL OUT
FM 75
Ω
G
AM
TM1
ANT IN
1
7
IF OUT
8
OSC OUT
5
VT
FE1
+B
A+12V
Q2
FM
10
FM OSC
16
A IN
19
A OUT
20
PD
18
PLL
IC51
7
FM
15
AM OSC
9
VCO STOP
8
IF REQ
6
DO
4
DI
5
CL
3
CE
XIN
1
XOUT
22
X51
4.5MHz
RF IF
AMP
AMP
Q1
CF1
CF2
DO
DI
CL
CE
2
1
11
9
3
10
7
8
RB41
2
AM MIX OUT
AM/IF
11
AM OSC
24
VCO STOP
12
IF REQ MUTING
10
AM RF IN
21
AM OSC
23
VCC
23
FM IF
1
AM/FM IF MPX
IC11
13
L OUT
14
R OUT
BUFFER
Q11
LPF11
LPF
4
AM IF IN
IFT11
R-CH
6
TUNED
7
STEREO
ST MUTING
21
ST CE
22
ST CLK
27
ST DOUT
23
ST DIN
25
STEREO
2
TUNED
3
MASTER CONTROL
IC501(1/2)
DO
CL
CE
DI
DI
OPTICAL
PICK-UP
BLOCK
(A-MAX.3)
+5V
LD
DRIVE
Q101
RF AMP
IC103
VC
27
A
6
B
7
C
8
D
9
E
10
F
11
LD
1
PD
2
IC102
MOTOR/COIL DRIVE
CH1RO
13
CH1FO
14
CH2RO
11
CH2FO
12
CH3RO
18
CH3FO
17
M
M102
SLED
MOTOR
CH4RO
16
CH4FO
15
M
M101
SPINDLE
MOTOR
3
CH1RI
2
CH1FI
6
CH2RI
5
CH2FI
23
CH3RI
24
CH3FI
25
CH4INS
20
MUTING
MDP
26
SFDR
28
SRDR
29
TRDR
30
TFDR
31
FRDR
32
FFDR
33
DIGITAL SIGNAL PROCESSOR
D/A CONVERTER
IC101
DIGITAL SERVO
60
D OUT
RFAC
51
28
RFDCO
15
RFAC
16
FE
18
TE
RFDC
43
FE
39
TE
41
SE
40
72
L OUT
OUT
OPTICAL
IC201
75
R OUT
5
DATA
R-CH
L OUT
L-CH
7
CLOK
6
XLAT
2
SQCK
9
SCLK
20
SCOR
1
SQSO
27
SSTP
66
XTAI
67
XTAO
3
XRST
X101
16.9344MHz
CD DATA
35
CD CLK
37
XLT
42
SQ CLK
33
SCOR
19
SQ DATA
32
XRST
43
TBL ADDRESS
SENSOR
49
T SENS
IC711
48
BU UP/DOWN SW
46
OPEN SW
47
CLOSE SW
44
LOAD IN
OPEN/CLOSE
S701
BU UP/
DOWN
S711
45
LOAD OUT
MOTOR
DRIVE
9
7
4
2
M
IC701
TURN
MOTOR
M721
6
12
IF IN
RV11
+B
AFC
22
BU PWM2
26
BU PWM3
24
BU PWM1
28
29
RFDCI
17
FEI
+3.3V
REG
Q102
DVDD
+3.3V
8
SENS
13
12
1
2
11
10
3
4
9
8
5
6
SENS
34
DIGITAL
OPTICAL
22
22
HCD-DX50/RG80
MAIN SECTION
A
TUNER
SECTION
B
CD
SECTION
: FM
: CD
• Signal Path
• RCH is omitted due to
same as L-CH.
same as L-CH.
: PB (DECK A)
: PB (DECK B)
: REC (DECK B)
REC
BIAS
BIAS
TRAP
TRAP
R-CH
R-CH
R CH
BIAS
OSC
Q302,303
RV304
Q301
TA+12V
C332,L301
ERASE
HEAD
REC/PB
HEAD
PB EQ
AMP
IC304
RV303
IC302
REC/PB SWITCH
REC
EQ
BIAS
SW
DOLBY
B
NORM
CROM
RV301
40
1
2
3
4
48
46
A
B
70
120
PB
REC
DOL
PAS
PB
REC
36
33
32
38
39
43
BIAS ON/OFF
20
B NORM/CROM/METAL
ALC ON/OFF
15
RM ON/OFF
22
NR ON/OFF
23
REC /PB/PASS
24
LM ON/OFF
25
MS OUT
26
MD/VIDEO
(AUDIO)
R-CH
L-CH
LOUT
L-CH
J101
L
R
R-CH
PB
HEAD
DECK-B
DECK-A
PB EQ
AMP
IC303
RV302
SWITCH
Q304,305
17
A120/70
PB A/B
16
NORM/HIGH
18
DECK PROCESSOR
IC301
INPUT SELECT
G EQ
IC101
IN2A
40
IN2C
38
IN2D
37
INVOL OUT2
35
IN2B
39
24
VOL OUT2
DATA
21
CLOCK
22
R-CH
DBFB
SWITCH
Q503
DBFB
CONT
Q101,102
6
5
7
IC102
MUTING
Q103
Q103
MUTING
CONT
Q504,505
POWER
AMP
IC501
18
12
10
MUTING
Q581
MUTING
CONT
Q503,504
MUTING
Q862
MUTING
CONT
Q861
D841
OVER LOAD
DETECTOR
Q551
OVER HEAT
DETECTOR
Q505,506
+B
PROTECT
DETECTOR
Q821,822
PROTECT
CONT
Q823
D502
PROTECT
SWITCH
Q828,829
RELAY
DRIVE
DRIVE
Q824,825
RY801
J631
PHONES
R CH
R CH
M961
(FAN)
(FAN)
FAN
DRIVE
Q891,892
L
R
TM801
SPEAKER
91 B SHUT
89 A SHUT
57 B PLAY
56 A PLAY
91 B HALF
70 A HALF
67
PB A/B
A TRIG
DRIVE
DRIVE
CAP MOTOR
DRIVE
Q396,397
Q393,394
B TRIG
DRIVE
DRIVE
Q391,392
CAP MOTOR
SPEED CONT
Q395
A TRIG
51
B TRIG
52
CAP M H/L
54
CAP M CONT
55
B TRG M+
19
69
TC RELAY
IC501(2/2)
MASTER CONTROL
66
EQ H/N
68
ALC
65
BIAS
61
REC MUTING
60
NR ON/OFF
59
R/PB PAS
58
TC MUTING
53
AMS IN
80
GEQ DATA
81
GEQCLK
79
DBFB ON/OFF
DC
BIAS
Q141
+6V
A+12V
82
LINE MUTING
83
STK MUTING
87
FRONT RELAY
88
PROTECT
30
IIC DATA
10
XC IN
11
XC OUT
15
X IN
13
X OUT
32.768kHz
X501
16MHz
X502
BPF 0
BPF 5
P1
P39
FLOURESCENT
INDICATOR TUBE
DISPLAY CONTROL
IC601
F1
F2
D604-609
11
FUCTION
KEY
60 I2C DATA
61 I2CCLOCK
VOL A
80
VOL B
79
S751
VOLUME
X601
4MHz
FL601
IC602
ALL BAND
73
HEADPHONE
78
S768-781
55
TUNER
57
CD
54
TAPE A/B
56
MD/VIDEO
58
GAME IN
LED
DRIVER
Q601-605
LED
DRIVER
Q751
52
REC/PAUSE
REC
D751
LED
DRIVER
53
ENTER
ENTER
D752
Q752
17
12
SPEANA
BPF
6
5
4
3
KEY0
64
FUCTION
KEY
KEY1
65
FUCTION
KEY
KEY2
66
77 RESET
MIC
J722
MIC
LEVEL
RV722
IC722
IC722
29
IIC CLK
41
M RESET
T910
S901
JW971
F971
DX50 : MX
DX50 : E, SP,
AR, E51
AR, E51
-V
REG
+5V
REG
Q941
D543
-VG
+B
-B
POWER
AMP
D901-904
EVER +5.6V
F1
F2
D972-975
AC
IN
IN
RELAY
DRIVE
DRIVE
Q971
IC971
T972
1
3
+5.6V
REG
1
3
RY971
+12V
REG
1
3
+9V
REG
1
3
CD POWER
SWITCH
+5V
REG
1
3
IC911
Q911,912
IC951
IC921
IC961
CD D+5V(SW)
CD A+5V(SW)
TC D+5V
AUDIO +5V
A+12V
TC A+12V
MIC A+12V
ST A+12V
TC M+9V
CDM M+7V
LED +7V
D906-909
D952
D953
D511
STBY RELAY
84
38
CD POWER
AC CUT
100
Q575
T301
HP901
HRPE901
5
7
7
5
3
2
1
IC301
IC104
DX50
TH701
DX50
3
2
1
6
5
7
LIMITER
Q721
D920-922
D577
S1003
(A HALF)
S1006
(B HALF)
S1001
(A PLAY)
S1002
(B PLAY)
A REEL
DET
IC1001
B REEL
DET
IC1002
A TRG M+
MOTOR
CONT
M901
M
CAPSTAN
MOTOR
Q1001
RV1002
NORM S
RV1001
HIGH S
S1005
(REC A)
(REC A)
S1009
(REC B)
(REC B)
R-CH
J401
VIDEO OUT
VIDEO
AUDIO
L
R
J601
2
3
1
IC106
13
10
9
12
11
IC105
Q104
FAN ON
SWITCH
Q831
SURROOUND
J102
L
R
R CH
RG80
71
67
72
.
S753-758
S760-765
S760-765
S601-605
S791-795
S791-795
48
VKK
-VG
D791-793
59
DISC1
74
DISC2
75
DISC3
LED
DRIVER
Q791-793
5
1
100
93
.
G1
G13
12
22
24
41
43
6
10
47
XIN
83
XOUT
82
.
.
.
78
GAME/VIDEO
LED
DRIVER
Q794
SIRCS
4
SIRCS
IC603
DISPLAY KEY
73
POWER KEY
74
STBY LED
75
?/1
S796
DISPLAY
S752
?/1
D794
RESET
12
RESET 1
3
IC502
STBY +5V
D508
VREF
D +5V
D509
D510
D580
D579
VCC
D977
D911
D910
D824
D822
JW973
JW972
DX50 : E, SP, AR, E51
DX50 : E, SP, AR, E51, AUS
JW974
JW975
MX
KR
JW986
DX50 : MX
JW984
DX50 : KR, AUS/RG80
JW990
DX50 : E, SP, AR, E51
120
230-240
220
220
120
230-240
DX50 : E, SP, KR, AR, E51
IC616
+3.3V
REG
1
3
+3.3V
+3.3V
VOLTAGE SELECTOR
INPUT SELECT
PM901
PM902
• Abbreviation
AR
AR
: Argentina model
AUS : Australian model
E51
E51
: Chilean and Peruvian model
KR
: Korea model
MX
: Mexican model
SP
: Singapore model
23
23
HCD-DX50/RG80
6-3.
SCHEMATIC DIAGRAM MAIN SECTION (1/4)
• See page 20 for Wavefoms. • See page 45 for IC Block Diagrams.
IC B/D
IC B/D
24
24
HCD-DX50/RG80
6-4.
SCHEMATIC DIAGRAM MAIN SECTION (2/4)
• See page 45 for IC Block Diagrams.
• See page 42 for Printed Wiring Board of Switch Board.
• See page 42 for Printed Wiring Board of Switch Board.
DX50
IC B/D
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