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– MAIN SECTION –
KEY CON
L IN
SECTION
3
DATA
4
A
CLK
5
LATCH
6
K CON
(Page 25)
L OUT
J101
PHONO
3
1
IN
L
PHONO EQ AMP
IC101
INPUT SELECT
J101
IC102
VIDE/MD
MUTE
V
(AUDIO)
1
Q121
IN
TC
2
L
ST
4
CD
5
PB L
REC L
MUTE
CONTROL
Q123,124
RELAY REC/PB
A SHUT
B SHUT
B
B HALF
A HALF
A PLAY
DECK
B PLAY
SECTION
PB A / B
(Page 20)
NORM/HIGH
BIAS ON/OFF
RM ON/OFF
NR ON/OFF
REC/PB PASS
LM ON/OFF
CAP M H/L
A TRG
B TRG
TRIG H/L
CAP M ON/OFF
ST L
FM/AM TUNER
COM DIN
TUNER UNIT IS
COM DATA
SUPPLIED AS
STEREO
THE ASSEMBLED
TUNED
BLOCK
ST CE
MUTE
L CH
TBL. L
TBL. R
SCOR
T. SENS
SENS 2
C
SENS
X RST
CD CLK
CD
CD DATA
SECTION
UP SW
(Page 18)
SQ CLK
SQ DATA
X LAT
(DISC No.)
09
DOLBY PRO LOGIC
IC601
CENTER
C-OUT
34
REAR
9
LIN
S-OUT
35
37
L-OUT
3
41
FRONT
DATA
4
42
CLK
2
40
EN
INPUT SELECT
IC103
3
69
4
65
3
5
71
A
10
28
9
MICON
9
29
B
10
INTERFACE
INH
6
11
30
32 33 34
4
3
54
3
99
427 LAT SW F CON
96
INPUT CHANGE
RELAY
26
A SHUT
27
B SHUT
28
B HALF
97
A HALF
94
A PLAY SW
95
B PLAY SW
87
PB A/B
88
EQ H//N
89
BIAS
90
REC MUTE
91
NR ON/OFF
92
R/P PASS
93
TC MUTE
82
CAP H/N
83
A TRG
84
B TRG
85
TRG LOW
86
CAP M ON/OFF
1
41
VOL LAT
2
42
PL LAT
3
44
COM DOUT
MASTER CONTROL
4
IC701
45
COM CLK
66
ST DIN
70
STEREO
TUNED
69
68
ST CE
72
ST MUTE
67
ST DOUT
5
4
K CON LAT
6
5
K CON ON
60
TBL L
61
TBL R
18
SCOR
76
T SENS
73
SENS 2
74
SENS
57
XRST
48
CD CLK
47
CD DATA
77
UP SW
36
SQ CLK
34
SQ DATA IN
58
XLT
D+5V
D201
62
TRAY LED
Q201
– 21 –
DELAY
IC602
S-OUT
10
S-IN
13
8
L-IN
FRONT
L-MIX
3
16
3
OUT
DATA
4
2
CLK
XTAL
23
2
X601
4
EN
8MHz
XTAL
24
FRONT
61
64
45
+
EQ
EQUALIZER / VOLUME
IC201
62
98
POWER
DBFB H/L
2
1
TA MUTE
7
R RELAY
IIC DATA
55
28
DATA
IIC CLK
56
27
CLOCK
RESET
15
RESET
SWITCH
Q951
DISPLAY CONTROL
14 RESET
AC CUT
20
RESET
IC951
D951
+5V
12
X1
11
XOUT
X701
X601
5MHz
8MHz
10
13
XIN
X2
XT1
14
X702
32.768KHz
13
XT2
SEG1-35
67 - 100 • 1
CD POWER
46
FL601
FLUORESCENT INDICATOR TUBE
MUTE
STK MUTE
100
SWITCH
Q912
VOLUME
IC604
IC603
REAR
3
1
3
IN
AMP
5
7
14
IN
4
CENTER
J101
8
CLK
3
9
DATA
VIDEO/MD
1
10
LATCH
(AUDIO)
AMP
OUT
IC861
L
6
7
5
FRONT
44
43
42
+
38
MUTE
Q254
MUTE
39
40
41
SWITCH
S.WOOFER
DBFB
DBFB
MODE
SWITCH
SWITCH
SWITCH
Q201
Q202
Q206
LED1
3
10
•
15
•
16
LED
•
PANEL LED
18
SWITCH
23
•
25
•
47
LED18
LED
29
CONTROL
LED SELECT
Q601
REMOTE
CONTROL
SIRCS
39
RECEIVER
IC601
SPEANA 1
42
IC602
SPEANA 2
43
D/A
SPEANA 3
44
S711
SPEANA 4
45
= AMS +
L+R
46
26
JOG A
ROTARY
41
ENCODER
JOG B
KEY 5
37
KEY
MATRIX
KEY 1
33
S681
6
DOOR SW
38
OPEN
S701
VOLUME
VOL A
24
ROTARY
40
ENCODER
VOL B
GR1-16
51 - 66
VF
– 22 –
HCD-XB88AVK/XB88K
REAR
MUTE
2
OUT
REAR
Q602
CENTER
MUTE
15
OUT
CENTER
Q601
FRONT
Q120
DBFB
POWER ON/OFF
R RELAY
D
Q602,603
D+5V
POWER
SECTION
(Page 23)
• R CH: Same as L ch
• SIGNAL PATH
: FM
: CD
: PB
: REC
: VIDEO
CD POWER
STK MUTE
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