Block Diagram - Audio/Video Cd Section - Aiwa CX-JV77 Service Manual

CX-JV77
6-2. BLOCK DIAGRAM – AUDIO/VIDEO CD Section –
74 150 149 207 206
X501 X502
33.8688MHz 27MHz
24 13 – 15, 17 – 21 12 – 5, 27, 26, 31 23, 25, 4, 28, 29, 3, 2, 30
DQ0 – DQ7 A0 – A9, A18 A10 – A17
PROGRAM ROM
IC508
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: CD PLAY (AUDIO)
: CD PLAY (VIDEO)
: MIC
CX-JV77
MPEG VIDEO/AUDIO DECODER,
VIDEO SIGNAL ENCODER
IC505 (2/2)
DRDAT0 – DRDAT15 DRADR0 – DRADR10
49 – 56, 59 – 66 34 – 37, 39 – 45 73 72 68
ADDRESS BUS
DATA BUS
2, 4, 5, 7, 8, 10, 11, 13, 42,
23 – 26, 29 – 34, 22 16 18 17
44, 45, 47, 48, 50, 51, 53
A0 – A10
DQ0 – DQ15
D-RAM
IC507
TABLE,
TRAY, O/C
B
(Page 23)
SYS-RST
(Page 23) D
FROM IC505 (1/2)
AUDDTO0
201
CD SERVO
SECTION AUDBCK 203
AUDLRCK 204
AUDXCLKO 205
GPIO14
30
GPIO13 29
GPIO11 26
GPIO12 28
6
CPSIG
70 76 77 78 13 14 15 19 18 16
98 99 100 95 96 97
38 20 15 39
O-VIDEO-MUTE 7
SYSTEM CONTROLLER
IC601 (1/3)
TABLE
73 I-CD NUM SENSER
TRAY
20 I-CD ENCODER
O/C
21 I-CD OPEN/CLOSE
93 O-XRES
WFR/HP/MIC-IN 19
24 24
+3.3V
REGULATOR CD +5V
Q581
5 6
2 DATA VOUTL 7
LOW-PASS
1 BCK FILER
IC102
3
LRCK VOUTR 8
16 MLCK
DATA
13
14 CLK
DIGITAL FILTER,
15 LAT D/A CONVERTER
IC504
VIDEO AMP
IC307
SYNC BUFFER
B.P.F. 3 IN OUT 6
Q301
OUTSAG 5
STBY
2
VIDEO MUTING
CONTROL SWITCH
Q370
J802
MIC
VR801
MIC LEVEL
MIC +9V
MIC AMP MIC AMP
IC801 (1/2) IC801 (1/2)
MUTING MIC AGC ECHO AMP
Q802 Q801 IC802
MIC DETECT
Q372
+
CD-L
E
(Page 25)
R-CH
MUTING
Q306
R-CH
MUTING
CONTROL
Q304, 305
J
(Page 25)
CD-MUTING
DATA, CLK, LD
(Page 23)
C
J310
VIDEO OUT
MIC
F (Page 25)
VR802
ECHO LEVEL
HP DET
(Page 25)
G