Block Diagram - Main Section - Sony CDX-C90R Service Manual

CDX-C90R
Q Q
3 7 6 3 1 5 1 5 0
3-3. BLOCK DIAGRAM — MAIN SECTION —
TUNER UNIT
TU701
(ANTENNA)
1 AM-ANT
2 FM-ANT
FM+B
FM 8V 8
+B (FM/AM)
TU 8V 9
AM+B
10
AM 8V
AM-IFOUT 14
AM-DET.OUT
S-METER (FM/AM)
SD (FM/AM)
RECEIVE/SEEK
AM-IFCOUT
FM-IFCOUT
VCO (FM/AM)
VT (FM/AM)
T E
L 1 3 9 4 2 2 9 6 5 1 3
5V REG
FM 5V
9V REG
IC802
IC801
D804
NARROW 24
TU 8V 3 VO VIN 1
BATT
VC
2
FM ON
FM 8V SWITCH
Q804
D801
AM ON
SWITCH
AM 8V
Q805
BAND
SWITCH
Q803
+B SWITCH
RDS 5V BU 5V
Q991
w w w
04
FM MUTE
IC761
IC771
L-OUT 18 1 2
Q851
R-OUT 13
16 R-CH
MUTE
Q781
DRIVE
9
Q791,792
6
8
AM NOISE CANCELLER TIR/AM SWITCH
IC851 IC941
AF.OUT L
IF IN
5 DET AMP 11 1
AF IF L
12 7
7
Q941
RV701
Q703
S-METER
19
20
ST-IND 22
13
PLL
IC721
11 13
IF.IN
D.OUT 6
21 15 AM.OSC
D.IN 5
6 16 FM.OSC
CLK
4
DX/LCL 4 9 DX/LO
CE 2
LPF
5 18 PD
Q722 1
XI
AM 8V
7.2MHz
XO 20
VT
SWITCH
NARROW 7
IC722
3
6 5
1 2
7
Q724
NARROW
WIDE/
CONTROL
Q721
Q702
RDS DEMODULATOR
IC951
RDS 15 20 LVIN
2
MPTH
23
FM-DET 16 MPX 8
DAVN
OSCO
4 SDA 9
Q704 X951
SCL 10
4.332MHz
5 OSCI
TIR CONTROL
IC901
TIR SIGNAL REGISTER L IN
26 AOUT
IC921 18
D0 1
D.OUT 15 44 D.I/O
ADPCM/
D.IN 11
DAC
D3 4
RWCK 2 50 RWCK
BUSY 5
WE 16 46 WE
CE 56
CS 17 40 CSI
RD 55
TAS 18 TAS
37
WR 54
SAS 22 36 SAS
RESET 53
SAD 23 39 SADX
PDWN 35
47 XT1 CE 11
X901
48 XT2
x a o
4.19MHz
. i
– 29 –
http://www.xiaoyu163.com
INPUT SELECT/TONE/SUB VOLUME
-1 L-CH
BUS CONTROL
IN 39
-2 R-CH R-CH
40
R-CH
41
(Page 28)
42
1
CD SECTION CD L-CH
SYSTEM CONTROL
IC300 (1/2)
16 21 22
2
114 TUNATT
5
SO
105
CKO
104
3
VOL CE0 101
CE1 102
6
CE2
103 R-CH
120 TIRPLAY
DIRECT 98
50 VSM
ATT 99
113 SD IN
BUZZER
112 FM STIN
DRIVE BZ300
BEEP 15
110 SEEKOUT
Q300 (BUZZER)
LAT 17
25 DF SO 18
SI
26 CKO 19
SO
PLL
27
CKO
CE
28
DIMMER 61
X301
X721
32.768KHz
73 X0A
12
NOSE SW
Q Q
3 7
FRONT
74 X0B
PANEL
(NOSE SWITCH)
92 X0
EL ON
X300 93
X1
DC +B SITCH
3.68MHz
Q408,411
9 AF SEEK
BOOT DP 85
ILL ON 10V
10 WIDE
ILL ON 97
D424
49 PW ON 96
MPT
72
DAVN
ANTREM 100
70
SI
RDS
71 CKO
79
TEL ATT
ILLIN 78
109 AM ON
108 FM ON
ACC IN 81
TEST IN 56
115 D0
118 D3
BUSY
5
4 CE
TIR
2 RD
1 WR
P MOT+ 29
16 RES
P MOT– 30
6 PDOWN
CE
3
I DET 31
7 OUT IN 3
BU 5V
Q605
LED301
MOTOR LOCK DET AMP
u 1 6 3
IC601
y TIR
MOTREF 40
LED DRIVE
62 TIR IND
Q302
http://www.xiaoyu163.com
2 4
8 9 9
IC102
ELECTRONIC VOLUME
IC107(1/2)
IC104
9 11
33 30 TONE 26
RY101
IC107(2/2)
16 14
SUB
32 31
VOLUME
RELAY
DRIVE
Q303 3 6 2
IC105
BU 5V
BACK-UP
CHECK
Q900
MUTE
CONTROL
Q101
D313,314
BUIN
FRONT PANEL
AATT
DFLAT
CD
DFSO 2 ELECTRONIC
SECTION
LUMINESCENT LIGHT
DFCKO
(Page 28)
PW ON
6 3 1 5 1 5 0 8 9
BATT
(Page 32)
EL ON
DISPLAY
4
BOOT
SECTION
5V REG
ILL ON BU 5V
Q401
10V REG
BATT
Q402,404,406
POWER ON
10V REG
P ON 10V SWITCH
Q403
Q400,405
ANT REM
CONTROL
Q801,802
DIMMER
CONTROL
9V REG
IC602
VO
MOT 9V 3 VIN 1 BATT
VC
2
PANEL MOTOR DRIVE
IC600
D600
17 OPEN OUT1 8
CLOSE
19
M904
M
m
PANEL
6 RNF
MOTOR
MOTOR VREF
OUT2 5
CONTROL 20 VREF
MOT 9V
c o
Q601,603
.
– 30 –
2
8 9 9
-1 L-CH
FRONT
LINE OUT
-2
R-CH R-CH
Q107
L-CH
-3
REAR
LINE OUT
R-CH -4
R-CH
Q106
L-CH
-3
SUB OUT
R-CH -4
R-CH
Q103
EL INVERTER DRIVE
DC +B
IC550,Q553–556
Q552
Q557
2 4 9 8 2 9 9
PN401
BATT BATT
BATT CN403
4
AMP REM
BATT
5
ANT REM
TEL ATT
1
CONTROL TEL ATT
Q415
3
ILL
Q416
ACC
2
ACC
CHECK
Q417
6
TEST
Signal Path
: FM
: MW
: CD