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6
6
HCD-RG55/RG55S
: FM
: CD
• Signal Path
• R-CH is omitted due to same as L-CH.
: PB (DECK A)
: PB (DECK B)
: REC (DECK B)
D
CD,TUNER
SECTION
CD,TUNER
SECTION
B
CD,TUNER
SECTION
C
CD,TUNER
SECTION
E
CD,TUNER
SECTION
A
IC801(2/3)
SYSTEM CONTROL
BIAS
TRAP
R-CH
BIAS
OSC
Q223
+12V
ERASE
HEAD
REC/PB
HEAD
R-CH
PB
HEAD
DECK-B
DECK-A
18
TAPE A STAT
83
PHOTO A
Q228
A IN(L)
32
DECK A/B SELECT
PB/REC EQ AMP
IC201
B IN(L)
34
REC OUT(L)
21
AMS
9
28
EQ OUT(L)
AMS
Q210-212
26
PB OUT(L)
24
REC IN(L)
L201
R-CH
Q219
Q221
Q224
BIAS
Q225
Q222
REC BIAS
REC MUTE
9
PB MUTE
12
A/B
8
15
REC MUTE ON/OFF
14
MUTE ON/OFF
13
A/B
IC601
SHIFT REGISTER
23
SOL A
BIAS
18
REC
20
19
TAPE B STAT
TAPE DECK
A HALF
MODE SW A
B HALF
MODE SW B
REC(FWD)
A PHOTO
84
PHOTO B
B PHOTO
A SOL DRIVE
Q601,602
SOL A
22
SOL B
B SOL DRIVE
Q603,604
SOL B
24
MECHA VCC
M+B CONT
Q605,606
CAP M+
L
R
GAME
INPUT
R-CH
VIDEO OUT
JK803
JK602
19
STK MUTE
17
SP RELAY(F)
6
CD POWER
3
SYS MUTE
L-CH
IC301
IN2A
40
IN2B
39
REC OUT2
35
1
REF
DATA
21
CLOCK
22
IN2D
37
SOUND PROCESSOR
Q363
MUTE
POWER AMP
IC501
1
2
12
6
7
Q361,362
MUTE CONT
Q581
MUTE
Q381,382
PROTECT
DETECT
D502
Q301
MUTE
D362
Q503,504
MUTE CONT
Q383
PROTECT
CONT
Q386
PROTECT
SWITCH
Q387
PROTECT
SWITCH
2
1
IC304(1/2)
JK801
PHONES
R CH
R CH
L
L
RY371
R
R
JK302
SPEAKER
Q501
OVER LOAD
DETECTOR
Q384,385
RELAY
DRIVE
HIGH
FREQ
D801,802
P01
P30
G01
G13
FLOURESCENT
INDICATOR TUBE
IC801(3/3)
SYSTEM CONTROL
F1
F2
FUNCTION
KEY
VP ENCODER A
87
VR ENCODER B
86
REMOCON
85
VOLUME
ENCODER
X801
32.768MHz
FLD801
42
30
KEY INPUT1
26
12 XT1
13
PROTECT SENSOR
77
HEADPHONE SENSOR
78
FUNCTION
KEY
KEY INPUT0
25
S801-812
FUNCTION
KEY
KEY INPUT2
27
S814-826
REMOTE
CONTROL
RECEIVER
RM601
T911
MAIN TRANS
VF2
VF1
RESET
1
3
IC803
D824
D817
S827-838
1
PWR LED
LED603
D541
PROT
+B
-B
POWER
AMP
Q911
-30V SW
D901-904
+5.6V
REG
1
3
IC901
T901
SUB TRANS
43
45
47
.
50
52
.
71
73
.
75
VACS
20
SPEANA H
21
1
2
EVER
+5.6V
51
VPP
15 CF1
16
RES801
10MHz
XT2
CF2
D911
-30V
D542
D543
+12V
REG
3
1
IC683
TU +12V
+12V
UNREG
D681-684
+5.6V
REG
3
1
IC682
+5.6V
Q681
Q682
+5V
REG
3
1
IC681
A +5V
+7V
REG
3
1
IC684
+7V
D687-690
D691
D692
EVER +5.6V
MIC
JK802
MIC
LEVEL
VR801
IC802
(1/2)
IC802
(2/2)
3
2
1
6
5
7
IC503
SUB WOOFER AMP
IC304
(2/2)
7
5
IC302
(1/2)
1
3
IC302
(2/2)
7
5
Q801
LIMITER
R-CH
L-CH
JK301
AUDIO
VIDEO
MUTE
10
TU MUTE
23
ALC(L)
DO2
25
DI1
26
CLK
3
LATCH
4
DI2,DO1,CLK,LATCH
DI2
DO1
CLK
LATCH
REC(REW)
DATA,CLOCK
IN2C
38
MIC
2
IN2E
36
CD-L
DATA
CLOCK
25
OUT2
Q631
DBFB
D631
Q365
MUTE CONT
STK MUTE
Q511
D383
D518
FAN961
FAN
DRIVE
Q371
MUTE
Q304
MUTE
Q505
RELAY
DRIVE
Q389
RY373
Q582,583
OVER HEAT
DETECTOR
+B
TH501
Q584
FAN SW
19
SA OUT
24
SW OUT
VR802
VOLUME
MID/HIGH
FREQ
D803,804
MID
FREQ
D805,806
LOW
FREQ
D807,808
SPEANA M/H
22
SPEANA M
23
SPEANA L
24
11
RESET
RESET
SWITCH
Q809
28
PWR DOWN
2
P.S RELAY
µ
COM +B
D822
FAN +B
AC
IN
RELAY
DRIVE
Q901
RY901
S901
JW911
JW912
VOLTAGE
SELECTOR
SP,AUS
SP
AEP,UK.SP
E2,E51,SP,
AR,KR
220V
230-240V
120V
220V
230-240V
120V
JW6
F919
JW7
AUS
AEP/UK
MD(VIDEO)
IN
EXCEPT AEP,UK
AEP,UK
7
12
6
-B SWITCH
Q512,513
CN311
SUB WOOFER
CONTROL
JK303
SUB WOOFER
OUT
-B
(-30V)
3. BLOCK DIAGRAM — MAIN SECTION —
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(Page 5)
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