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HCD-XGR88
24
24
– MAIN SECTION –
MIX AMP
IC422 (1/2)
PHONO
EQ AMP
IC601
POWER AMP
IC801
CD-L
J701 (1/2)
A
(Page 22)
(Page 25)
(Page 23)
C
(Page 23)
PB-L
B
FUNCTION SELECT
SWITCH
IC181
R-CH
VOLUME
CONTROL
CPU
INTERFACE
INPUT
SELECT
SWITCH
SURROUND OR
DPL BUFFER
MID/
BASS &
TREBLE
R-CH
R-CH
COMMAND
F OUT2
OUT1
VL
IN1
+
Q802,803
LEVEL SHIFT
D803
Q115
Q166,167
R-CH
DBFB
R-CH
+
+
+
MIC AMP
IC850 (2/2)
MUTE
Q114
MUTE
Q701
MUTE
Q805,855
DELAY
Q833
OVER LOAD
DETECT
Q801, 851
TEMPERATURE
DETECT SWITCH
Q831, 832
TEMPERATURE
DETECT SWITCH
Q842, 843
INPUT SELECT SWITCH,
GRAPHIC EQUALIZER CONTROL,
ELECTRICAL VOLUME
IC111
INA1
INEX1
IND1
L+R
SPEANA
DATA
CLK
EQIC-DAT
EQIC-CLK
TEMP DET
BB-A1
BB-B1
SWOUT
REC-L
R-CH
R-CH
X0
X
A
B
X1
TH831
R-CH
R-CH
R-CH
RY402
R-CH
+
R-CH
M901
(FAN)
R-CH
–1
–2
FAN MOTOR
DRIVE
Q961, 962
R-CH
R-CH
FRONT SPEAKER PROTECT
RELAY DRIVE
Q401, 402
STANDBY SWITCH
Q803, 804, 834
TM401
FAN MOTOR
B+
J802
J801
A+9V
VC
+9V
VC
L
R
PHONO
IN
L
R
MD IN
FRONT
INPUT
AUDIO
J701 (2/2)
L
R
MD OUT
D401
AC DET
Q923
D410
RY401
J891
PHONES
+
–
–
+
SYSTEM CONTROLLER
(CD MECHANISM CONTROL)
IC501 (3/4)
RHYTHM
PHRASE
PLAYER
IC461
AMP
IC422 (2/2)
+
88
60
7
66
6
59
54
42
FRONT-RELAY 87
97
AUDIO-OUT 1
STK-MUTE 83
LINE-MUTE 82
HP-MUTE
TSTB
MUTEOL
X401
8.19MHz
MCK
MSD
MLAB
MEMP
TEMPO
XOS
XIS
86
18
11
12
HP-IN 95
80
81
2
6
7
14
15
24
18
22
16
21
5
3
6
INB1
INC1
4
M
L
R
19
XC-OUT
X502
16MHz
X501
32.768kHz
XC-IN
X-OUT
X-IN
AU-SEL0
AU-SEL1
ML-RESET
D461
D462
ML-MUTE
PARTY-CLK
PARTY-DATA
PWML+
PWML–
ML-WR
ML-BUSY2
PARTY-TEMPO
11
10
13
71
14
13
10
9
12
15
J500 (2/2)
L
R
X2
15
X3
11
72
PROTECT
MIC1
MIC2
E
(Page 25)
F
MIC AMP
IC850 (1/2)
MIC LEVEL
RV801
ST-L
D
(Page 23)
J500 (1/2)
J721
FRONT
INPUT
VIDEO
VIDEO OUT
• SIGNAL PATH
: TUNER (FM/AM)
: CD PLAY
• R-ch is omitted due to same as L-ch.
: TAPE PLAY
: RECORD
: MIC INPUT
PROTECT SWITCH
Q431
TWEETER & WOOFER
IMPEDANCE
USE 6 – 16
Ω
TM402
L
R
+
–
–
+
SUPER WOOFER
IMPEDANCE
USE 6 – 16
Ω
R-CH
17
NC
Q805,806
LEVEL SHIFT
8
MIC
RECB1
7
MIC OUT
C
A
B
C
A
B
Q181
Q182
POWER AMP
IC101
PROTECTOR
IC912
14
9
OVER LOAD
DETECT
Q101, 151
+
VREF
Q884
+
VREF
Q611
4
20
6
7
8
22
24
9
10
28
27
3
2
1
MUTE
Q471
1
2
4
3
OCP
CT
VP
OUT
Summary of Contents for HCD-XGR88
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