Hitachi 22LD4500UK Service Manual page 15

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30
GND
LLC
31
Y7
32
Y6
33
Y5
34
Y4
35
GND
Y
36
V
SUPY
37
Y3
38
Y2
39
Y1
40
Y0
41
C7
42
C6
43
C5
44
C4
45
V
SUPC
46
GND
C
47
C3
48
C2
49
C1
50
C0
51
GND
SY
52
V
SUPSY
53
INTLC
54
AVO
55
FSY/HC/HSYA
56
MSY/HS
57
VS
58
FPDAT/VSYA
59
V
STBYY
60
CLK5
61
NC
62
XTAL1
63
XTAL2
64
ASGF
65
GND
F
66
VRT
67
I2CSEL
68
ISGND
69
V
SUPF
70
VOUT
71
CIN
72
VIN1
73
VIN2
74
VIN3
75
VIN4
76
V
SUPAI
77
GND
AI
78
VREF
79
FB1IN
80
AISGND
SUPPLYD
X
OUT
GND
Y
OUT
GND
Y
OUT
GND
Y
OUT
GND
Y
SUPPLYD
X
SUPPLYD
X
OUT
GND
Y
OUT
GND
Y
OUT
GND
Y
OUT
GND
Y
OUT
GND
C
OUT
GND
C
OUT
GND
C
OUT
GND
C
SUPPLYD
X
SUPPLYD
X
OUT
GND
C
OUT
GND
C
OUT
GND
C
OUT
GND
C
SUPPLYD
X
SUPPLYD
X
OUT
LV
OUT
LV
OUT
LV
IN/OUT
LV
OUT
LV
IN/OUT
LV
SUPPLYA
X
OUT
LV
-
LV or GND
IN
X
OUT
X
X
SUPPLYA
X
OUTPUT
X
IN
X
SUPPLYA
X
SUPPLYA
X
OUT
LV
IN
LV
IN
VRT
IN
VRT
IN
VRT
IN
VRT
SUPPLYA
X
SUPPLYA
X
OUTPUT
X
IN
VREF
SUPPLYA
X
Ground, LLC Circuitry
Picture Bus Luma (MSB)
Picture Bus Luma
Picture Bus Luma
Picture Bus Luma
Ground, Luma Output Circuitry
Supply Voltage, Luma Output Circuitry
Picture Bus Luma
Picture Bus Luma
Picture Bus Luma
Picture Bus Luma (LSB)
Picture Bus Chroma (MSB)
Picture Bus Chroma
Picture Bus Chroma
Picture Bus Chroma
Supply Voltage, Chroma Output Circuitry
Ground, Chroma Output Circuitry
Picture Bus Chroma
Picture Bus Chroma
Picture Bus Chroma
Picture Bus Chroma (LSB)
Ground Sync Pad Circuitry
Supply Voltage, Sync Pad Circuitry
Interlace Output
Active Video Output
Front
Sync/
Horizontal
Horizontal Sync Output
Main Sync/Horizontal Sync Pulse
Vertical Sync Pulse
Front End/Back-End Data/Front-End Vertical Sync
Output
Standby Supply Voltage
CCU 5 MHz Clock Output
Not Connected
D
Analog Crystal Input
Analog Crystal Output
Analog Shield GND
Ground, Analog Front-End
Reference Voltage Top, Analog
2
I
C Bus Address Select
Signal Ground for Analog Input, connect to GND
Supply Voltage, Analog Front-End
Analog Video Output
Chroma/Analog Video 5 Input
Video 1 Analog Input
Video 2 Analog Input
Video 3 Analog Input
Video 4 Analog Input
Supply Voltage, Analog Component Inputs Front-End
Ground, Analog Component Inputs Front-End
Reference Voltage Top, Analog Component Inputs
Front-End
Fast Blank Input
Signal Ground for Analog Component Inputs, connect
to GND
AI
12
Clamp
Pulse/Front-End
F
F

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