Sharp Aquos LC 37HV6U, Service Manual

Page: 73 / 264

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LC-37HV6U
Ë
9DK001-15079(CXA3506R) (ASSY:IC10004)
3ch 8bit 120MSPS A/D CONVERTER AMP. PLL
»
Block Diagram
»
Pin Function
Pin No
.
Pin Name
I/O
Pin Function
1
B/CbOUT
O
Amplifier output signal monitor
2
ADDRESS
I
I2C slave address setup
3
R/CrOUT
O
Amplifier output signal monitor
4N
C
—
Not connected
5N
C
—
Not connected
6
XPOWERSAVE
I
Power save setup
7
DGNDREG
—
GND for registers
8
DVCCREG
—
Power supply for registers
9
SDA
I
Control register data input
10
SCL
I
Control register clock signal input
11
XSENABLE
I
Enable signal input for 3 line control registers
12
SEROUT
O
3
line control register data read-out
13
3WIRE/I2C
I
Selection in I2C-bus mode and 3 line bus mode
15
AVCCADREF
—
Power supply for reference voltage of ADC
16,94
AVCCAD3
—
Analog power supply of ADC
17
VRT
O
The top reference voltage output of ADC
18,92
DVCCAD3
—
Digital power supply of ADC
19,32,42,54,
DVCCADTTL
—
Power supply for a TTL output of ADC
65,76,90 20,33,44,55,
DGNDADTTL
—
GND for a TTL output of ADC
67,77,89 21,22,24-28,31
RA0~RA7
O
R
channel port A side data output
23,30,43,50,
DGNDAD3
—
Digital GND of ADC
59,66,79,86 29,80
AGNDAD3
—
Analog GND of ADC
34-41
RB0~RB7
O
R
channel port B side data output
Pin No
.
Pin Name
I/O
Pin Function
45-49,51-53
BA0~BA7
O
B
channel port A side data output
56-58,60-64
BB0~BB7
O
B
channel port B side data output
68-75
GA0~GA7
O
G
channel port A side data output
78,81-85,87,88
GB0~GB7
O
G
channel port B side data output
91
DVCCAD
—
Digital power supply of ADC
93
VRB
O
Bottom reference voltage output of ADC
95
AGNDADREF
—
GND for reference voltage of ADC
96
DVCCPLLTTL
—
Power supply for a TTL output of PLL
97
DGNDPLLTTL
—
Power supply for a TTL output of PLL
98
XCLKCLK
O
CLK reversal output
99
1/2XCLK
O
CLK output
100
1/2CLK
O
1/2 CLK reversal output
101
DSYNC/
O
1/2 CLK output
103
DIVOUT
O
DSYNC signal output /DIVOUT signal output.
104
UNLOCK
O
UNLOCK signal output terminal.
105
SOGOUT
O
Sync signal output of a sync-on green signal.
106
HOLD
I
Input of the de-sable signal of phase comparison.
107
XTLOAD
I
Reset setup of a programmable counter.
108
EVEN/ODD
I
Sampling clock reversal pulse input of ADC.
109
XCLKIN
I
Negative clock input for a test.
110
CLKIN
I
Positive clock input for a test.
111
SYNCIN1
I
Sync signal input1
112
SYNCIN2
I
Sync signal input2
113
CLPIN
I
Clamp pulse input.
114
DVCCPLL
—
Digital power supply for PLL.
115
DGNDPLL
—
Digital GND for PLL.
116
AVCCVCO
—
Analog power supply for VCO of PLL.
117
AGNDVCO
—
Analog GND for VCO of PLL.
118
RC1
—
PLL loop filter external terminal-1.
119
RC2
—
PLL loop filter external terminal-2.
120
AVCCIR
—
Analog power supply for IREF
121
IREF
I
Current setup
123
AGNDIR
—
Analog GND for IREF
124
G/YIN1
I
G/Y signal input-1
125
AVCCAMPG
—
Power supply for G/Y amplifier parts
126
G/YIN2
I
G/Y signal input-2
127
AGNDAMPG
—
GND for G/Y amplifier parts
128
G/YCLP
—
Clamp capacitor connection terminal for brightness
129
B/CbCLP
—
Clamp capacitor connection terminal for brightness
130
R/CrCLP
—
Clamp capacitor connection terminal for brightness
132
SOGIN1
I
sync-on green signal input-1.
133
B/CbIN1
I
B/Cb signal input-1
134
AVCCAMPB
—
Power supply for B/Cb amplifier parts
135
SOGIN2
I
sync-on green signal input-2.
136
B/CbIN2
I
B/Cb signal input-2
137
AGNDAMPB
—
GND for B/Cb amplifier parts
139
R/CrIN1
I
R/Cr signal input-1
140
AVCCAMPR
—
Power supply for R/Cr amplifier parts
141
R/CrIN2
I
R/Cr signal input-2
142
AGNDAMPR
—
GND for R/Cr amplifier parts
143
G/YOUT
O
Amplifier output signal monitor
144
DACTEST
O
Test output terminal of DAC for amplifier part control registers
14,102,122,
OUTDPGND
—
GND
131,138