Sharp 64LHP5000 Service Manual page 52

64LHP5000
PROJECTOR UNIT
» Pin Function
Pin No.
1 X-ray protection input
2 Horizontal drive output
3 Horizontal pulse width setting
4 AFC-II filter
5 FBP input
6 Horizontal GND
7 Horizontal phase adjustment
8 Horizontal VCC
9 Horizontal oscillation capacitor
10 Horizontal oscillation adjustment
11 AFC-I filter
12 HD input
13 Vertical drive output
14 Vertical GND
15 Vertical NF input
16 Vertical lamp filter
17 Vertical power supply
18 Vertical amplitude width adjustment
19 Vertical lamp clamp voltage
20 Vertical oscillation adjustment
21 VD input
22 Vertical separation input
Pin Name I/O
Pin for preventing radiation of X-ray from CRT.
I When this pin is set above 1.3V (standard), the horizontal output will
stop until H.VCC becomes a low level.
O Horizontal output pin.
Pin for adding a capacitor for setting horizontal output pulse duty.
Pin 3-waveform
I
Horizontal output
— Pin for adding capacitor for AFC-II filter.
I FBP input pin.
— Horizontal circuit GND
Horizontal phase adjustment pin.
I The image horizontal position can be adjusted according to the voltage
of this pin.
— Horizontal circuit VCC=12V (Standard)
Pin for adding the horizontal oscillation capacitor.
Oscillation circuit based on rated current discharge.
—
Pin 9 waveform
Pin for adjusting the horizontal oscillation frequency.
I
Determines the current to Pin 9.
— Pin for adding the capacitor to the AFC-I filter.
HD signal input pin.
I
The HD signal is selected as the sync signal by setting the voltage of
Pin 22 to low level (<0.7V).
O Vertical output pin.
— Vertical circuit GND.
I Vertical negative feed back input pin.
Pin for adding a capacitor for generating the vertical lamp waveform.
—
Performs waveform-shaping by the discharged power of the capacitor.
—
Vertical circuit VCC=12V (Standard)
I
Pin for adding a capacitor for generating the vertical lamp waveform.
—
Pin for determining the upper limit voltage of vertical sawtooth wave.
—
Pin for adding the capacitor resistance for vertical oscillation.
VD signal input pin.
I The VD signal is selected as a sync signal by setting the voltage of Pin
22 to low level (<0.7V).
Vertical sync signal input pin.
I
By setting this pin to low level (<0.7V), the HD and VD signals are
selected as a sync signal.
52
Function
8V
0.3mA 1.2mA
4V
8V
4V