Block Diagram - Main Section - Sony MDX-C8900R Service Manual

MDX-C8900R
4-3. BLOCK DIAGRAM – MAIN Section –
DADT,
BCK,
LRCK,
FS256
DADT DATA
A
5
BCK BCK INPUT DIGITAL
6
(Page 30) INTERFACE FILTER
LRCK LRCK
4
FS256 XTI CLK MODE
1
CONTROL CONTROL
RESET,
EMPHASIS RESET RSTB
B
15
17 16
(Page 33)
(Page 32) EMPHASIS
FM
E
AM/TIR
F
(Page 32)
BUFFER
MIC AMP
IC905 (2/3)
IC905 (1/3)
CNJ501
MIC
BUFFER
IC905 (3/3)
OE 28
CE 26
WE 11
D0 – D7
FLASH
MEMORY
IC902
A0
A-1
45
A1 – A19
RESET 12
D0 – D7
PROGRAM
ROM
IC903
A0 – A15
IC908 (1/2)
2 A16
7
1
IC908 (2/2)
5 A17
3
6
A16 10
A17 6
IC906
1
4
OE 32
2 IC907
1
4
2
05
CN602 (1/2)
(L)
BUS
AUDIO IN
(R) R-CH INPUT SELECT,
ELECTRICAL VOLUME
IC400 (1/2)
AUX-IN-L
42
VOUTL
LOW-PASS
MD-IN-L
12 41
FILTER
NOISE
FM-IN-L
IC100
D/A
SHAPER 40
CONVERTER
AM-IN-L
VOUTR
39
9 R-CH
DIGITAL FILTER,
D/A CONVERTER
R-CH
IC101
CSV
IC901
CSV
BUFFER
51 AN0 48
DAC
IC904
50 AN1
32 P07
33 P06
27 P14
45 WRD
B+ SWITCH
D+5V
D0 – D7
Q533, 534
A0 – A15
P01 38
36
P03
P00 39
P02 37
A16 – A19
P04 35
RST 21
XI1 20
X901
14.3MHz
XO1 19
LOCK,
MD-ATT
C
(Page 30)
42 26 44
– 33 –
VR1
VOLUME TONE
IN VOUT1 TIN1
33 32 CONTROL 31 30 CONTROL
CIRCUIT CIRCUIT
LOUDNESS
CONTROL
CIRCUIT
ELECTRICAL VOLUME
(FOR SUBWOOFER)
IC403
BUFFER
INAO1 VRIN1
INP1
20 17 16
D
SUB CUT
SWITCH
(Page 31) SHIFT
Q206, 207
ZC
REGISTER &
DET
LATCH
R-CH
R-CH
8 9 7
BACKUP +5V
62 61
49 VRSW
DATA
21 CSV-SO VOLSO/SUBSO 66
CLK
20 CSV-SI VOLCKO/SUBCKO 67
VOLCE
22 CSV-CKO VOLCE 64
SUBCE
23 CSV-CE SUBCE 68
117 CSV-NAR
9 CSV-RST
D407
ATT 65
MASTER CONTROLLER
IC500 (2/4)
104 LOCK POWON 120
109 MD-ATT
LED-ON 118
TESTIN 58
TEL-ATT
79
R-CH COM +8V
CENTER VOLTAGE
GENERATOR (FOR BIAS)
IC402
17
ELECTRICAL
VCT
VOLUME
IC400 (2/2)
FNTO1
FADER LINE
24
TCO1
FDIN1
BUFFER
26 25 CONTROL DRIVER
REO1
IC401
23
CIRCUIT IC200
R-CH
SHIFT
REGISTER &
LATCH
16 21 22
R-CH
VOLUME
OUT1
BUFFER
CONTROL 15
IC404
CIRCUIT
R-CH
MUTING
Q204
MUTING
Q305
D403
MUTING
Q304
D402
MUTING
MUTING
CONTROL SWITCH
Q205
Q401
D406
BATTERY OFF
MUTE DRIVER COM +8V
Q400
MUTING
CONTROL SWITCH BATT B+
Q403
MUTING
CONTROL SWITCH
Q402
RESET SWITCH ON
MUTING DRIVER
Q535
– 34 –
• SIGNAL PATH
: MD PLAY
: FM
: AM
CN602 (2/2)
FRONT AUDIO OUT
(L)
MUTING
Q200
(R)
MUTING
Q300
(L)
MUTING
Q201
(R)
CN601 (1/2)
MUTING
REAR AUDIO OUT
Q301
(L)
MUTING
Q202
(R)
CN601 (2/2)
MUTING
Q203 SUB WOOFER OUT
CNP500 (1/2)
POWER AMP
(POWER CONNECTOR)
IC600
1
OUT1+ 9 FL+
IN1
11
9
OUT1– 7 FL–
4
21 FR+
OUT4+
14
IN4
12
OUT4– 23 FR–
2
OUT2+ 5 RL+
12 IN2
10
OUT2– 3 RL–
3
OUT3+ 17 RR+
15 IN3
11
OUT3– 19 RR–
22 4
15
TEST MODE
13
TEL-ATT
STB
G
(Page 38)
LED-ON
H
(Page 38)
LEVEL SHIFT
Q509
RESET
I
(Page 37)