Read Sony CX-JV55 / JAX-V55 Service Manual online
CX-JV55
24
24
CX-JV55
6-2. BLOCK DIAGRAM – AUDIO/VIDEO CD Section –
PROGRAM ROM
IC508
• SIGNAL PATH
: CD PLAY (AUDIO)
: CD PLAY (VIDEO)
: MIC
DIGITAL FILTER,
D/A CONVERTER
IC504
MPEG VIDEO/AUDIO DECODER,
VIDEO SIGNAL ENCODER
IC505 (2/2)
7
8
VOUTL
VOUTR
1
2
3
DATA
BCK
LRCK
DRADR0 – DRADR10
DRDAT0 – DRDAT15
D0 – D15
D0 – D15
A0 – A10
A0 – A10
74
18
73 72 68
6
201
203
204
CPSIG
AUDDTO0
AUDBCK
AUDLRCK
16
MLCK
205
AUDXCLKO
14
13
15
DATA
CLK
LAT
DATA
CLK
LAT
30
29
26
GPIO14
GPIO13
GPIO11
28
GPIO12
34 – 37, 39 – 45
49 – 56, 59 – 66
23 – 26, 29 – 34, 22
A0 – A10
12 – 5, 27, 26, 31
D8 – D15
A10 – A17
23, 25, 4, 28, 29, 3, 2, 30
D0 – D7
DQ0 – DQ7
A0 – A9, A18
DQ0 – DQ15
ADDRESS BUS
DATA BUS
D-RAM
IC507
A0 – A10
13 – 15, 17 – 21
WE
24
OE
RAS
CAS
DRCAS
DRRAS
DRWEL
NVOEL
B.P.F.
LOW-PASS
FILER
IC102
IC102
70 76 77 78
DRDQM1
DRDQM0
DRBS
DRCK
13 14
GPIO1
GPIO0
15 19 18 16
GPIO3
GPIO4
GPIO5
GPIO2
• R-ch is omitted due to same as L-ch.
E
CD-L
J
CD-MUTING
C
DATA, CLK, LD
F
MIC
G
HP DET
B
TABLE,
TRAY, O/C
TRAY, O/C
R-CH
2, 4, 5, 7, 8, 10, 11, 13, 42,
44, 45, 47, 48, 50, 51, 53
16
17
20
CLK
BA0
LDQM
38
15
UDQM
39
+3.3V
REGULATOR
Q581
CD +5V
5
VDD
6
VCC
VIDEO AMP
IC307
SYNC BUFFER
Q301
6
OUT
5
OUTSAG
3
IN
2
STBY
VIDEO MUTING
CONTROL SWITCH
Q370
J310
VIDEO OUT
207
206
CLKB
CLKA
X502
27MHz
97
O-SYS-REQ
96
O-SYS-OK
95
I-SYS-CS
100
I-SYS-CLK
99
I-SYS-IN
98
O-SYS-OUT
SYSTEM CONTROLLER
IC601 (1/3)
7
O-VIDEO-MUTE
19
WFR/HP/MIC-IN
MIC +9V
150
149
XTAO
XTAI
X501
33.8688MHz
FROM IC505 (1/2)
CD SERVO
SECTION
73 I-CD NUM SENSER
20 I-CD ENCODER
21 I-CD OPEN/CLOSE
TABLE
TRAY
O/C
D
93 O-XRES
SYS-RST
MIC AMP
IC801 (1/2)
MIC AGC
Q801
MIC DETECT
Q372
MUTING
Q802
MIC AMP
IC801 (1/2)
ECHO AMP
IC802
VR801
MIC LEVEL
J802
MIC
VR802
ECHO LEVEL
+
R-CH
MUTING
Q306
MUTING
CONTROL
Q304, 305
(Page 25)
(Page 25)
(Page 23)
(Page 25)
(Page 25)
(Page 23)
(Page 23)
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