Video Section - Sony HCD-VR50 Service Manual

HCD-VR50/VR70
Q Q
3 7 6 3 1 5 1 5 0
– VIDEO SECTION –
LEVEL SHIFT
IC501
ADATA
1 4 4
BCLK 3
13 10
5
LRCK 5 8
C2P0
6
DATAI
112
DATAO
119
CLK1
117
HRDY
113
INT
114
HSEL
121
RST
60
INVERTER
93
Q502
T E
L 1 3 9 4 2 2 9 6 5 1 3
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
SENS 1
SCLK 2
MUTE
10
CTRL1 11
27
LDON 28
18
SCOR
36
SUBQ
SQCK 37
77
w w w
(XTAL 33.8MHz)
XRST
09
MCK
D-RAM
IC507
16 - 19 22 - 26 2 - 10 31 - 39 13 - 15 17 - 21
13 14 28 29
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
VIDEO CD CONTROL
IC502
DATA1O
SHARPNESS 34
DATA1I
DF LATCH 22
CLK1
CL680 INT A7 65
CL680 HSEL
XIN 15
CL680 HRDY
X501
680 RESET
10MHz
13
XOUT
NT/PAL
93
+5V
DSP DATA
DSP LATCH
TEST LED 73
D502
DSP CLK
SENSE
SENSE CLK
XRESET 12
DSP MUTE
CTRL1(L:DOUBLE)
CTRL2
LDON
SCOR
SUBQ DATA
SUBQ CLK
DEVICE RESET
I 2 C.DATA 30
I 2 C.CLK 29
x a o
. i
– 27 –
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ROM
IC506
25 4 28 29 3 2 14 10 12 - 5 27 26 23 22
58 - 44 37
BUFFER TRAP
Y-OUT 69
Q301 Q302,306,307
BUFFER
75
C-OUT
Q303,304
DA-DATA 110
DA-LRCK 108
DA-BCK 111
27MHz
VCK-IN 106
DA-XCLK 86
Q Q
3 7
DATA0
CLK1
NTSC
S501
SYSTEM
AUTO
SELECT
PAL
u 1 6 3
y
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2 4
8 9 9
OUTPUT AMP
IC401
MIX AMP MUTE
5 7
Q308,310 Q454
3 1
DIGITAL FILTER & D/A CONVERTER
IC509
6 3 1 5 1 5 0 8 9
18
14
3
D/A
19
PLM
CONV
17 11 R-CH
9
1
CLOCK
8 X503
MODE
DIVIDER
27MHz
7
24
CT503
10 21 20 4 VIDEO
FREQUENCY
RSTB
LEVEL SHIFT
IC504
3
11
1
3.3V REG
D5V +3.3V
Q531
m
c o
.
– 28 –
2
8 9 9
MAIN
O
SECTION (1/2)
VCD VIDEO
(Page 23)
J301
MUTE
4
Q453 3 S VIDEO
OUT
2 1
AMP
IC101
2 4 9 8 2 9 9
CD-L
M
1
(L - CH)
MAIN
SECTION (1/2)
(Page 23)
27MHz
6
384FS
8
768FS
12
MAIN
N
2
I C.DATA
SECTION (2/2)
I 2 C.CLK
(Page 25)
MAIN
P
SECTION (2/2)
X-RST
(Page 25)
• R CH: Same as L ch
• SIGNAL PATH
: CD
: CHROMA
:Y
: VIDEO