HCD-VR90AV
21
21
VIDEO SECTION
SYSTEM
SELECT
S501
65
15
13
16
29
I
2
C.CLK
30
I
2
C.DATA
XRESET
TEST LED
NT/PAL
XOUT
+5V
D502
A7
DF LATCH
SHARPNESS
XIN
24
45
BUS
DSP DATA
DSP LATCH
SENSE CLK
DSP CLK
SENSE
DSP MUTE
CTRL1(L:DOUBLE)
CTRL2
LDON
SCOR
SUBQ DATA
22
34
X501
NTSC
AUTO
PAL
10MHz
X503
27MHz
MECHA. CONTROL
IC502
LEVEL SHIFT
IC504
LEVEL SHIFT
IC501
D-RAM
IC507
ROM
IC506
AMP
IC101
OUTPUT AMP
IC401
VIDEO/CD DECODER
IC505
DIGITAL FILTER & D/A CONVERTER
IC509
DATA1O
DATA1I
CLK1
CL680 INT
DATA0
DATAI
CLK1
ADATA
BCLK
LRCK
C2P0
LDON
SCOR
SUBQ
SQCK
XRST
MCK
A
CD
SECTION
(Page 20)
SUBQ CLK
DEVICE RESET
23
93
73
12
3
4
5
1
2
10
11
27
28
18
37
36
77
20
21
33
32
31
69
HD-OUT
6
CD-C2P0
CD-LRCK
CD-BCK
HRDY
HD-IN
HCK
HINT
HSEL
RESET
PGIO2/VSYNC/CSYNC
INVERTER
Q502
CD-DATA
MWE
WE
RAS
UCAS
LCAS
A0
A8
DQ1
DQ16
RASO
CAS
MCE
MD0
MD15
MA10
MA0
C-OUT
Y-OUT
75
DA-DATA
DA-BCK 111
VCK-IN 106
DA-XCLK 86
110
DA-LRCK 108
112
119
117
113
114
121
93
60
3
5
4
13 14 28 29
38 42
40
10
8
4
13
5
1
1
3
7
5
1
3
19
17
DATA0
CLK1
8
7
10
20
4
11
18
MODE
PLM
D/A
CONV
CLOCK
DIVIDER
9
24
1
16-19•22-26
2-5•7-10•31-34•36-39
O0
O7
A11
A17
A0
A10
CE
13-15•17-21
25•4•28•29•3•2•30
12-5•27•26•23
58-56•54•52-50•48•46-44
10-15•17•19•21•23-29
22
37
MUTE
Q454
BUFFER
Q301
MUTE
Q453
MIX AMP
Q308,310
BUFFER
Q303,304
TRAP
Q302,306,307
1
3
2
4
14
VCD VIDEO
J301
VIDEO
FREQUENCY
CT503
CD-L
R-CH
XRST
27MHz
384FS
768FS
S VIDEO
OUT
DATAI
DATAO
CLK1
HRDY
INT
HSEL
RST
CLK1, DATA0
(XTAL 33.8MHz)
RSTB
3.3V REG
Q531
+3.3V
D5V
: CD VIDEO
• R CH is omitted
• SIGNAL PATH
: CD AUDIO
: Y
: CHROMA
MAIN(1/2)
SECTION
(Page 23)
C
MAIN(1/2)
SECTION
(Page 23)
B
MAIN(2/2)
SECTION
(Page 24)
D
CLK
DATA
680 RESET
CL680 HRDY
CL680 HSEL
RESET
HRDY
HSEL
INT
11
1
3
8
12
6
21
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9
9
2
8
9
4
2
9
8
T E L
1 3 9 4 2 2 9 6 5 1 3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
