Video Section - Sony HCD-VX90AV Service Manual

HCD-VX90AV
– VIDEO SECTION –
LEVEL SHIFT
IC501
ADATA 4
1 4
BCLK 13 10 3
LRCK 5 8 5
C2P0
6
DATAI
112
DATAO
119
CLK1
117
HRDY
113
INT
114
HSEL
121
RST
60
INVERTER
93
Q502
CLK1, DATA0
A
CD
SECTION
(Page 20)
DATA0
31
DATAI
32
CLK1
33
INT
20
HSEL
21
HRDY
23
RESET
24
45 BUS
DATA
3
XLT 4
CLK 5
1
SENS
SCLK 2
MUTE
10
CTRL1 11
27
LDON 28
18
SCOR
36
SUBQ
SQCK 37
77
(XTAL 33.8MHz)
XRST
09
MCK
D-RAM
IC507
2 - 10 31 - 39
13 14 28 29 16 - 19 22 - 26 13 - 15 17 - 21
38 42 40 10 - 29
CD-DATA
CD-BCK
CD-LRCK
CD-C2P0
VIDEO/CD DECODER
IC505
HD-OUT
HD-IN
HCK
HRDY
HINT
HSEL
RESET
PGIO2/VSYNC/CSYNC
MECHA. CONTROL
IC502
DATA1O
SHARPNESS 34
DATA1I
DF LATCH 22
CLK1
CL680 INT A7 65
CL680 HSEL
XIN 15
CL680 HRDY
X501
680 RESET
10MHz
XOUT 13
NT/PAL
93
+5V
DSP DATA
DSP LATCH
73
TEST LED
DSP CLK
SENSE
SENSE CLK P.ON 38
XRESET 12
DSP MUTE
CTRL1(L:DOUBLE)
CTRL2
LDON
SCOR
SUBQ DATA
SUBQ CLK
DEVICE RESET
I 2 C.CLK 29
2
I C.DATA 30
– 21 –
ROM
IC506
25 4 28 29 3 2 14 10 12 - 5 27 26 23
22
58 - 44 37
BUFFER
Y-OUT
69
Q301 Q302,306,307
C-OUT 75
Q303,304
110
DA-DATA
DA-LRCK 108
DA-BCK 111
27MHz
VCK-IN 106
DA-XCLK 86
NTSC
S501
SYSTEM
AUTO
SELECT
PAL
D502
OUTPUT AMP
IC401
TRAP
MUTE
MIX AMP
5 7
Q454
Q308,310
3 1
BUFFER
DIGITAL FILTER & D/A CONVERTER
IC509
18
14
D/A
19 PLM
CONV
17 11 R-CH
DATA0
9
1
CLK1
CLOCK
8
MODE
DIVIDER
7 24
10 21 20 4
RSTB
LEVEL SHIFT
IC504
3
11
1
3.3V REG
D5V +3.3V
Q531
– 22 –
J302
VIDEO OUT
J301
S VIDEO
MUTE
OUT
Q453 4 3
2 1
AMP
IC101
C
3 1 L - CH
XRST
MAIN
SECTION
(Page 20, 25)
X503
27MHz
CT503
VIDEO
FREQUENCY
27MHz
6
384FS
8
768FS
12
2 F
I C. CLK
I 2 C. DATA
MAIN
SECTION
(Page 26)
• R CH: Same as L ch
• SIGNAL PATH
: CD
: CHROMA
:Y
: VIDEO