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HCD-V919AV
7-4.
BLOCK DIAGRAM – MAIN Section (1/2) –
– 29 –
– 30 –
MIC LEVEL
DBFB CONTROL
SWITCH
Q111
SPEANA
MIXING AMP
IC401
RESET SIGNAL
GENERATOR
IC951
CD-L
E
(Page 26)
L-CH
J
(Page 31)
FEED BACK
(Page 31)
(Page 33)
(Page 31)
(Page 31)
(Page 28)
H
(Page 28)
PB-L
G
R-CH
R-CH
LT-IN
RT-IN
L-OUT
R-OUT
DELAY OUT
S-OUT
L-IN
R-IN
L-OUT
R-OUT
05
FM/AM TUNER UNIT
VOLUME
CONTROL
CPU
INTERFACE
BASS BOOST
CONTROL
CIRCUIT
INPUT SELECT
SOUND
CONTROL
CIRCUIT
GRAPHIC
EQUALIZER
CONTROL
CIRCUIT
67
R-CH
FEED BACK SWITCH
Q112
R-CH
R-CH
COMMAND
F OUT2
BUF
OUT2
VOL
IN2
+
R-CH
R-CH
+
+
+
68
2
58
RV750
ECHO LEVEL
RV751
MIC AMP
IC750 (2/2)
BUFFER
IC411
DIGITAL ECHO
IC751
MUTING
Q113
LINE AMP
IC191
LINE AMP
IC291 (1/2)
LINE AMP
IC291 (2/2)
RESET
SWITCH
Q951
GRAPHIC EQUALIZER CONTROL,
ELECTRICAL VOLUME
IC111
IN B2
IN C2
66
64
5
60
61
62
12
11
17
10
S-OUT 39
S-VOL
OUT
36
C-VOL
OUT
27
51
53
50
54
52
49
50 49 42 41
S-OP
OUT
33
C-OP
OUT
31
C-OUT
DOLBY SURROUND
PRO LOGIC PROCESSOR
IC201
9
14
15
S-IN
16
S-VOL
IN
S-OP
IN
38
C-VOL
IN
ENABLE
ENABLE2
CLK
CLK
DATA
PL-LAT
PL-VOL
PL-CLK
PL-DATA
DATA
18
35
C-OP
IN
28
24
21
69
IN A2
IN F2
IN D2
KEY IN1
KEY IN2
75 59 6
33 32 34
KEY OUT
DOUT2
DOUT1
DATA
CLOCK
LATCH
52 51 3
M62442-DATA
M62442-CLK
M62442-LATCH
10
X2
X501
5MHz
X502
32.768kHz
11
X1
13
XT2
14
XT1
BB B2,
BB A2
MIC IN
VOL OUT2
REC
A2
REC-L
O
M
N
(Page 33)
L
(Page 25)
(Page 34)
(Page 34)
(Page 32)
SPEANA
DATA, CLK
POWER
CD-POWER
REC
B2
• SIGNAL PATH
: CD PLAY
: TAPE PLAY
: RECORD
: TUNER (FM/AM)
: MIC INPUT
+5V
MUTING
Q292
MUTING
Q291
MUTING
Q191
R-CH
R-CH
57
42
MUTING CONTROL
SWITCH
Q141, 143
41
100
2
16
15
6
36
40
J101 (2/2)
MD OUT
J191
SUPER WOOFER
R
L
J101 (1/2)
R
J751
MIC 1
MD IN
VIDEO
(AUDIO) IN
L
R-CH
R
L
ST-L
FM ANT
FM ANT
AM ANT
AM ANT
ST-R
ST-MUTE
STEREO
TUNED
ST-DIN
ST-DOUT
ST-CLK
ST-CE
ANTENNA
FM 75
Ω
AM
38, 39
DBFB-H/L
CD-POWER
POWER
IIC-CLK
IIC-DATA
CLK
DATA
68
ST-CE
65
ST-CLK
66
ST-DIN
67
ST-DOUT
69
TUNED
70
STEREO
72
ST-MUTE
STK-MUTE
LINE-MUTE
F-RELAY
8
PL-RELAY
AC-CUT
RESET
57
XRST
1
46
OSC
X201
8MHz
47
OSC
RESET
REAR
CENTER
D
(Page 25)
RESET
SYSTEM CONTROLLER
IC501 (3/3)
56
55
F
(Page 33)
DATA, CLK
P
Q
(Page 33)
DJ SIG
I
R
F-RELAY
(Page 32)
PL-RELAY
T
(Page 32)
STK-MUTE
S
U
46
5
J750
MIC 2
MIC AMP
IC750 (1/2)
K
+
+