XG-P20XE. Version 1.4 - Sharp Projector Handy Guide. Page 44

Read Sharp XG-P20XE Handy Guide online

Electrical Adjustments
Version 1.4
Issue 04/2006
44
SHARP ELECTRONICS (UK) LTD
PROJECTOR TECHNICAL SUPPORT
TECHNICAL SERVICES GROUP
No.
Adjustment Items
Adjustment Conditions
Adjustment Procedures
19
DVD Contrast
1. Feed the colour bar signal of the
480I component signal to the BNC
G(Y) input terminal.
2. Select the following subject.
Group : DVD
Subject : CONTRAST
Using the control switches or the remote
controller buttons, adjust the white to white
(100%) level difference to 2.2 ± 0.05v p-p.
20
DVD Brightness
1. Feed the colour bar signal of the
480I component signal to the BNC
G(Y) input terminal.
2. Select the following subject.
Group : DVD
Subject : CONTRAST
Using the control switches or the remote
controller buttons, adjust the setting until the
black signal (0%) becomes bit-less.
21
DVD Tint
1. Feed the colour bar signal of the
480I component signal to the BNC Y,
Pb and Pr input terminals. Feed the
sync signal only for the Y signal.
2. Select the following subject.
Group : DVD
Subject : TINT
3. Connect the oscilloscope to
TP1301.
Using the control switches or the remote
controller buttons. Adjust the setting so that
the points indicated in the waveform figure
are at the same level.
22
DVD Colour
1. Feed the colour bar signal of the
480I component signal to the BNC G
(Y) input terminal.
2. Select the following subject.
Group : DVD
Subject : COLOR
3. Connect the oscilloscope to
TP1101.
Adjust the level difference between the
100% white and red portions to 0.3 ±0.02
Vp-p.
23
DVD White balance
adjustment
1. Feed the NTSC monoscope signal
to G(Y) input terminal of the BNC
terminal.
2. Select the following subject.
Group : DVD
Subject : R1-BLK
B1-BLK
Adjust so that a white balance may become
the best condition by using the control switch
or buttons of the R/C.
24
Checking and readjustment
of white balance
1.The adjustment condition of each
item is as mentioned in the following.
RGB input:Refer to No.11
VIDEO input:Refer to No.19
DVD input:Refer to No.23
Make sure that a white balance is the best
condition.
25
Colour system performance
check
1. Receive the colour bar signal.
In the process mode and select L1. Check
the colour and tint.
26
Video system performance
check
1. Receive the monoscope pattern
signal.
In the process mode and select L2. Check
the picture, brightness and sharpness.
27
Audio system performance
check
In the process mode nad select L3. Check
the bass, treble and balance.
Page of 56
Display

Click on the first or last page to see other XG-P20XE service manuals if exist.