XG-P20XE. Version 1.4 - Sharp Projector Handy Guide. Page 45

45

No.

Adjustment Items

Adjustment Conditions

Adjustment Procedures

28

RGB performance check

1. Receive the RGB signal.

In the process mode and select L4. Check
the picture, brightness, red, blue, clock,
phase, horizontal position, and vertical
position.

29

Off-timer performance
check

In the process mode and select OFF. Make
sure that the off-timer starts with “5”
(minutes), counts down each minute in 1
second, and turns off the set at “0”.

30

Thermistor performance
check

1. Heat the thermistor using a dryer.

Make sure the “TEMP” is displayed.

31

Automatic synchronisation

1. Receive the PHASE check pattern
signal.

Call the VGA/S-VGA/XGA mode and make
sure that the clock, phase, horizontal and
vertical positions can be automatically
adjusted.

32

Keystone correction
Performance check

Make sure the keystone correction functions
well.

33

Factory settings

Make the following settings.

1. The initialization of the set.
1) Press the S2601 switch to go to the process mode.
2) Perform S1 of the SSS menu. (S1 initializes only a PC I/F board. Don’t perform S2
because adjustment data except for the PC board are initialized.
3) Make sure that version of the SPECIAL program (VER.XXX) of the menu is the latest.

2-1. Setting the oscilloscope
Set the range to DC 1 V/div and 5µ/div.

2-2. Connecting the PC Interface
1) Connect the cable between the ANALOG OUTPUT (PC computer) and the DSUB
connector (INPUT1 of the projector).
2) Set the PC computer in the XGA mode (1024 x 768, 60 Hz, 32-step scale). Adjust the
output amplitude to 700 mVp-p (terminated with 75 ohms) for the black-to-white portions.
3) Turn on the power.

2-3. Adjusting and checking the level
1) Press the S2601 switch to go to the process mode.
2) Set the SH-PHASE on the OUTPUT3 menu to 8. (Make the characters on screen clear
and crisp.)
3) Adjust black level of red signal with R-BRIGHT of the A/D in a place to become bit less
condition.
4) Adjust black level of blue signal with B-BRIGHT of the A/D in a place to become bit less
condition.
5) Adjust black level of green signal with G-BRIGHT of the A/D in a place to become bit less
condition.