Block Diagram -Audio, Display Section - Sony CDX-MP70 Service Manual

4-3. BLOCK DIAGRAM — AUDIO, DISPLAY SECTION —
-1
CN303 L
-2
AUX IN
R R-CH
-1
CN302-1,-2
L
BUS
-2
AUDIO
IN
R R-CH
TUNER UNIT
TUX201
CN201
1 AM-ANT AM DET
(ANTENNA)
2 FM-ANT MPX
EEPROM
17 18 12 13 14 9
CN6
L-CH
3
R-CH
1
R-CH
MUTE
A-ATT
6 CONTROL
Q530
OPEN/CLOSE
MOTOR
J651
(REMOTE IN)
8
10
AEP,UK MODEL
NOISE
BUFF
NS MASK
DETECT
Q202 Q203
IC201
RDS
X201
IC202
5 4
OSCI OSCO
16 8
MPX DAVN
MPTH 12
9 10 20
X503
3.68MHz
92 93
M
9 3 98 FP CLOSE
MOTOR
DRIVE
4 97 FP OPEN
IC653
7
M601
6
CURRENT
49 FP IDET
DETECT
IC651(1/2)
S601
100 OPEN SW
(OPEN)
S602
99 CLOSE SW
(CLOSE)
73 74
X501
32.768kHz
23
ELECTRONIC VOLUME
IC305
4 AUX-L 23
OUT SW
LCH
43 MD-L A OUT L 38 ADSO 33 AC IN L CREF 39
IC301
9 AM,MPX2 28
OUT LF
12 MPX OUT LR 27
40 CD-L
16 19 20 14 13 17 23 21
MUTE
CONTROL
Q310,312
10 11 52 75 70 71 53 55 9 31 5
BOOT
106
NOSE SW/
12
RX
TX 13
SYSTEM CONTROL
IC501 (1/2)
48 79 72 80 46 110 109 108 107
KEY
BOARD
KEY ACK
DETECT
Q501
ENC901 ENC902
VOL PRST/AMS
LSW901-905,907,909
ENC901,902
KEY
S901-904
23
-1
L
-2
SUB
MUTE
OUT
R
Q305
IC310
-5
MUTE
L
Q301
-6
R-CH R
-3
MUTE
L
Q303
-4
R-CH R
POWER AMP
IC309
CNP781 (1/2)
FL+ 1
5
12
FL-
9
3
FR+
R-CH 4
FR-
R-CH 12
RL+
9 2
11
RL-
7 10
RR+
R-CH 3
4 ST-BY
RR-
11
22 MUTE R-CH
DISPLAY CONTROL
IC702 (1/2)
SACLK
1
• Signal path
112 SAIN
: CD
: FM
64
LCD CKO
LCD CE
66
: AM/MW/LW
57 BOOT
• R-ch is omitted due to
same as L-ch.
62 RX
60 LCD SO/TX
100 99 98
DIMMER 84
COLOR
BLUE 85
CONTROL
GREEN 86 Q901-906
AMBER 87
LCD DRIVER
IC901
LCD
CDX-MP70
CN301
SUB OUT
(MOMO)
CN302-5,6
FRONT
AUDIO
OUT
CN302-3,4
REAR