MDX-C7970/C7970R
– 27 –
– 28 –
4-3.
BLOCK DIAGRAM – MAIN Section –
LOCK IN
61
AF ATT
71
SCL
70
SDA
55
AMP ATT
80
58
TEL-ATT
32
60
AU ATT
05
• SIGNAL PATH
: MD PLAY
: FM
: AM (MW/LW)
: BUS AUDIO IN
STB
I
(Page 32)
AMP ON
H
(Page 31)
MASTER CONTROLLER
IC700 (2/4)
NOISE
SHAPER
INPUT
INTERFACE
D/A
CONVERTER
MODE
CONTROL
CLK
CONTROL
DIGITAL FILTER,
D/A CONVERTER
IC101
12
9
VOUTL
VOUTR
R-CH
BATTERY OFF
MUTE DRIVER
Q704
MUTING
CONTROL SWITCH
Q702 (2/2)
MUTING
CONTROL SWITCH
Q703
56
AMP ON
MUTE
J
(Page 31)
MD-ATT
D
(Page 24)
6
5
4
1
15
17 16
DATA
BCK
LRCK
XTI
RSTB
DM1
DM0
BCK
DADT
LRCK
FS256
A
(Page 24)
DADT,
BCK,
LRCK,
FS256
B
(Page 24)
E
(Page 26)
F
(Page 26)
EMPHASIS
DIGITAL
FILTER
RESET,
EMPHASIS
FM
AM
G
(Page 26)
DATA, CLOCK
C
(Page 24)
LOCK
RESET
COM +8V
BATT B+
D703
Q702 (1/2)
D700
D511
D701
CNP300 (2/2)
FRONT
LINE OUT
(L)
(R)
REAR
LINE OUT
(L)
(R)
MUTING
Q301
MUTING
Q401
MUTING
Q300
MUTING
Q400
FRONT L (+)
1
12
14
5
3
FL+
FL–
21
23
FR+
FR–
FL-IN
FR-IN
11
9
7
RL+
RL–
RL-IN
15
22
17
19
RR+
RR–
RR-IN
4
LEVEL SHIFT
Q500
CNP500 (1/2)
(POWER CONNECTOR)
POWER AMP
IC500
FRONT L (–)
9
FRONT R (+)
4
FRONT R (–)
12
REAR L (+)
2
REAR L (–)
10
REAR R (+)
3
REAR R (–)
11
TEST MODE
15
13
MUTING
Q302
MUTING
Q403
MUTING
Q303
MUTING
Q402
PDL
SE2L
SE1L
SE3L
SDA
SCL
DATA
CLOCK
MUTE
12
11
1
28
VOLUME
CONTROL
CIRCUIT
LOUDNESS
CONTROL
CIRCUIT
DIGITAL CONTROL
CIRCUIT
IIC BUS
LOUDNESS
CONTROL
CIRCUIT
INPUT
SELECTOR
(L)
(R)
R-CH
R-CH
INPUT SELECT,
ELECTRICAL VOLUME
IC300
CNP300 (1/2)
BUS
AUDIO IN
TESTIN
SOFT
MUTE
TONE
CONTROL
CIRCUIT
FADER
FADER
20
26
25 24
OUT RL
22
OUT FL
R-CH
R-CH
R-CH
R-CH
MUTE
ST-BY
TEL-ATT
Summary of Contents for MDX-C7970/C7970R
Page 4: ... 4 SECTION 1 GENERAL This section is extracted from instruction manual ...
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Page 41: ... 61 4 20 SCHEMATIC DIAGRAM SUB Board MDX C7970 C7970R Page 54 Page 57 ...
Page 48: ... 68 6 IC700 X1 KEY Board 1 IC801 º OSC IN 5 8 Vp p 271 ns 2 8 Vp p 3 5 µs ...