Sharp 64LHP5000, Service Manual

Page: 62 / 342

62
64LHP5000
PROJECTOR UNIT
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Pin Name
AVSS
LPF
REF
OSCIN
OSCOUT
AVDD
ODD
H
(NC)
(NC)
XIIC
V
XRST
DVDD
SCL
SDA
XCS
(NC)
DVSS
DC
BLK2
BLK1
AVDD2
I
B
G
R
AVSS2
I/O
—
I
I
I
O
—
I
I
—
—
I
I
I
I
I
I/O
I
—
—
O
O
O
I
O
O
O
O
I
Function
Ground pin of the analog circuit section.
An external low-pass filter is connected.
The free-running frequency of VCO is determined.
Oscillation input pin. This pin must be secured to the ground level.
Oscillation output pin. (NC)
Pin through which power is supplied to the analog circuit section.
Pin through which the field judging signal is input. When the signal goes to “H”, it becomes ODD.
The horizontal synchronization signal is input. (Input polarity can be set.)
Mask option function. When the serial three-wire is used, this terminal is usually fixed to “H”.
The vertical synchronization signal is input. (Input polarity can be set.)
When set at “L”, the inside of IC is initialized.
Pin through which power is supplied to the digital circuit section.
Serial clock input terminal. When set at I 2 C, this terminal functions as SCL. When the serial
three-wire is used, this terminal functions as the serial clock input terminal.
Serial data input and output terminal. When set at I 2 C, this terminal functions as SDA. When
the serial three-wire is used, this terminal functions as the serial data input terminal.
Chip select input terminal. When set at I
2
C, this terminal is not used; it is fixed to either “L” or
“H”. When the serial three-wire is used and this terminal is level “L”, the serial data and serial
clock are enabled. When the serial three-wire is used and this terminal is level “H”, the serial
data and serial clock are disabled.
Ground pin of the digital circuit section.
This terminal can be set to output the dot clock.
This terminal outputs the timing of blanking 2 in the form of positive logic.
This terminal outputs the timing of blanking 1 in the form of positive logic.
This terminal is the pin through which power is supplied to the DAC output port system.
This terminal outputs the intensity signal.
This terminal outputs the blue signal.
This terminal outputs the green signal.
This terminal outputs the red signal.
This terminal is the ground pin of the DAC output port system.
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Pin Function