Sony HCD-V909AV / MHC-V909AV Service Manual ▷ View online
— 75 —
IC271 BU6257AFV
CHARACTER
SIZE
REGISTER
HORIZONTAL
ADDRESS
REGISTER
WRITE
ADDRESS
COUNTER
COUNTER
HORIZONTAL
SIZE
COUNTER
HORIZONTAL
POSITION
COUNTER
COUNTER
HORIZONTAL
ADDRESS
COUNTER
COUNTER
VERTICAL
ADDRESS
ADDRESS
REGISTER
VERTICAL
SIZE
COUNTER
VERTICAL
POSITION
COUNTER
POSITION
COUNTER
VERTICAL
ADDRESS
COUNTER
ADDRESS
COUNTER
1
2
3
6
4
5
7
8
9
10
11
16 15 14 13 12
17
18
19
20
OSCILLATOR
CIRCUIT
DATA INPUT
SHIFT REGISTER
PROTECT
CIRCUIT
DISPLAY CONTROLLER
DATA REGISTER
CHARACTER
GENERATOR ROM
12
×
18 BIT
×
255 WORD
CHARACTER DATA
8 BIT
8 BIT
×
288 WORD
CHARACTER DATA
3 BIT
3 BIT
×
288 WORD
COLOR DATA
3 BIT
×
288 WORD
VIDEO RAM
DATA SELECTOR
OUTPUT CONTROL
BACKGROUND
CONTROLLER
DATA REGISTER
TEST CIRCUIT
HSYNC
VSYNC
VB
BLK1
VC1
RBLK
GBLK
BBLK
VR
VG
VSS
TEST
OSCIN
OSCOUT
CKOUT
VDD
RESET
CLK
CSB
DATA
IC301 CXD1854Q
81
YUV-RGB
CONVERSION
80
CSYNCO
82
HAPGAIN0
83
HAPGAIN1
84
TEST
85
TEN
86
HAPBPF0
87
IFSEL1
88
HAPBPF1
89
NRON
90
LEVEL0
91
LEVEL1
92
FNR UFRZ
93
XRST
94
VSS7
95
CSYNCI
96
CBLNKI
97
VSYNCI
98
HSYNCI
99
VDD5
100
DCLKI
50 VSS4
49 VCPT
48 VCP
47 HVCCT
46 HVCC
45 ADVS
44 ADVD
43 CORON
42 BLCKST3
41 VSS3
40 BLCKST2
39 BLCKST1
38 BLCKST0
37 VDD1
36 BLCKSIZE
35 BLCKNR1
34 BLCKNR0
33 SXP COM
32 SDO
31 SDI
CBLNKO
79
VSYNCO
78
HSYNCO
77
VSS5
76
BO7
75
BO6
74
BO5
73
BO4
72
BO3
71
BO2
70
BO1
69
BO0
68
VDD3
67
Y/GO7
66
Y/GO6
65
Y/GO5
64
Y/GO4
63
Y/GO3
62
Y/GO2
61
Y/GO1
60
Y/GO0
59
VDD2
58
C/RO7
57
C/RO6
56
C/RO5
55
C/RO4
54
C/RO3
53
C/RO2
52
C/RO1
51
C/RO0
1
VSSO
2
BI7
3
BI6
4
BI5
5
BI4
6
BI3
7
BI2
8
BI1
9
BI0
10
VSS1
11
Y/GI7
12
Y/GI6
13
Y/GI5
14
Y/GI4
15
Y/GI3
16
Y/GI2
17
Y/GI1
18
Y/GI0
19
VSS2
20
C/RI7
21
C/RI6
22
C/RI5
23
C/RI4
24
C/RI3
25
C/RI2
26
C/RI1
27
C/RI0
28
VDD0
29
XCS
30
XSCK
NOISE
REDUCER
RGB-YUV
CONVERSION
MEMORY
CONTROLLER
TIMING
GENERATOR
8
8
8
8
8
C/R-Y
B-Y
Y
Y
B-Y
C/R-Y
8
D-RAM
MICRO COMPUTER
INTERFACE
— 76 —
IC401 CXD1913Q
52
51
F1
XVRST
50
XCS
49
SCK
48
SI
47
VSS
46
TDO
45
TCK
44
TMS
43
TDI
42
VDD
41
TRST
40
VSS
XTEST1
XTEST3
36
TD8
35
TD9
34
VDD
33
TD1O
53
VDD
54
XTEST4
55
XRST
56
SYSCLK
57
PDCLK
58
VSS
59
VSYNC
60
HSYNC
61
SO
62
FID
63
VDD
64
XIICEN
1/2
SYNC Gen.
and
Timing Controller
SIO and I
2
O-Bus
Controller
3
8
Sub Carrier
Gen.
Modulator
Dempx,
Level
Translator
and
Interpolator
4 : 2 : 2 to
4 : 4 : 4
Level
Translator
and
Interpolator
4 : 2 : 2 to
4 : 4 : 4
Y, C/
Y, U, V
selector and
Interpolator
Y, U, V
selector and
Interpolator
SYNC Slope
Gen.
Closed Caption Encoder
(for NTSC)
CSYNC
CHROMA
V
U
Y
BURST FLAG
37-39
-
TEST MODE
10
VDD
19
VSS
C7
C0
11-18
-
5
VSS
Y3
Y0
6-9
-
Y7
Y4
1-4
-
Delay
10bit
DAC
10bit
DAC
10bit
DAC
LPF
LPF
29 YO
28 AVSS2
27 AVDD2
26 VG
25 VB
24 COMPO
23 AVSS1
22 AVDD1
21 VREF
20 IREF
30 AVDD3
31 AVSS3
32 CO
4
4
8
• Main section
IC102 MC14052BCP
14
15
16
13
12
11
10
9
0
2
COMMON
3
1
INHIBIT
V
EE
V
SS
V
DD
2
1
COMMON
3
0
SEL.A
SEL.B
DECODER
1
2
3
4
5
6
7
8
— 77 —
IC601 LA2786
1
2
3
4
5
6
7
8
9
15
10
11
12
+
13
14
16
21
18
19
25
17
24
22
23
20
34
32
33
29
30
35
28
31
27
26
36
40
39
38
37
41
42
NOISE
FILTER
NOISE
CH
BALANCE
CONTROL
VR
CONTROL
LPF
V REF
VR
VR
NOISE
GENERATOR
VCA
VCA
VCA
VCA
VCA
VCA
VCA
VCA
LPF
LPF
RECT
RECT
RECT
RECT
P. S.
P. S.
CMODE
MUTE
DIVIDER
OSC
CONTROL
CTRIM
LOG
DIFF
DIFF
LOG
DIFF
DIFF
DUAL T
CONTROL
L-IN
R-IN
V
SS
CLK
DATA
V
CC
L-OUT
R-OUT
S-OUT
C-OUT
ENABLE
OSC1
CMODE-CAP.
C-TRIM DC CUT
R-BPF1
R-BPF2
R-BPF3
DC CUT
DC CUT
L-R RECT
L+R RECT
VCS-TH
VCS-1
VCS-2
BPF1
BPF2
VREF
S-CH DC OUT
C-CH DC OUT
L-CH DC OUT
R-CH DC OUT
VREF
L-BPF1
L-BPF2
L-BPF3
DC CUT
DC CUT
R RECT
L RECT
VLR-TH
VLR-1
VLR-2
+
IC604 TC9210P
L-CH
DATA
LATCH
CIRCUIT
R-CH
DATA
LATCH
CIRCUIT
2
3
4
5
6
7
8
1
15
14
13
12
11
10
9
16
SHIFT RESISTER
(13bit)
STROBE OSC
CIRCUIT
LEVEL
SHIFT
CIRCUIT
LEVEL
SHIFT
CIRCUIT
V
SS
OUT
IN
L-CH
A-GND
NC
CS1
GND
CK
V
DD
OUT
IN
A-GND
NC
CS2
STB
DATA
R-CH
IC901 LA5617
ON/OFF
CURRENT
LIMITER
START
CIRCUIT
VREF
OVER HEAT
PROTECT
ON/OFF
CURRENT
LIMITER
1
2
3
4
5
6
7
8
9
10
VCC
VMUTE
VCC
VREF
ERROR
AMP
VREF
ERROR
AMP
VO1
VCC
CN1
EN
EN DISPLAY
GND
NC
CN2
VEE
VO2
~
_1.8V
~_
140uA
COMPARATER
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