2222
HCD-DX50/RG80
MAIN SECTION
A
TUNER
SECTION
B
CD
SECTION
: FM
: CD
• Signal Path
• RCH is omitted due to
same as L-CH.
: PB (DECK A)
: PB (DECK B)
: REC (DECK B)
REC
BIAS
BIAS
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
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
Q824,825
RY801
J631
PHONES
R CH
R CH
M961
(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
CAP MOTOR
DRIVE
Q396,397
Q393,394
B TRIG
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
-V
REG
+5V
REG
Q941
D543
-VG
+B
-B
POWER
AMP
D901-904
EVER +5.6V
F1
F2
D972-975
AC
IN
RELAY
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
57
75
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)
S1009
(REC B)
R-CH
J401
VIDEO OUT
VIDEO
AUDIO
L
R
J601
2
3
1
IC106
13
109
12
11
IC105
Q104
FAN ON
SWITCH
Q831
SURROOUND
J102
L
RR CH
RG80
71
67
72
.
S753-758
S760-765
S601-605
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
PM901PM902
• Abbreviation
AR : Argentina model
AUS : Australian model
E51 : Chilean and Peruvian model
KR : Korea model
MX : Mexican model
SP : Singapore model
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