Sharp PG-C30XE - Notevision XGA LCD Projector, Service Manual

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26
PG-C30XE
No. Adjusting point Adjusting conditions Adjusting procedure
22 Video input
panel signal
amplitude
adjustment 1. Feed the NTSC 10-step sig-
nal.
2. Select the following group
and subject.
Group: VIDEO2
Subject: R1-GAIN
B1-GAIN
3. Connect the oscilloscope to
TP1101 (R) and TP1201 (G).
4. For the blue colour, con-
nect the oscilloscope to
TP1301 (B) and TP1201
(G).
»
Select R1-GAIN and adjust the setting so that the
R and G signals have the same amplitude.
»
For the blue colour, adjust the setting the same
way.
23 Video white
balance 1. Feed the NTSC monoscope
pattern signal
Group : VIDEO 2
Subject : R1-BLK
B1-BLK
»
Using the control switches or the remote controller
buttons, adjust so that the entire screen looks
evenly colourless.
24 DTV white
balance 1. Feed the monoscope pattern
signal.
2. Group: DTV
Subject: CR-OFFSET
CB-OFFSET
»
Using the control switches or the remote controller
buttons, adjust so that the entire screen looks
evenly colourless.
25 Setup 1. Group: VIDEO1
Subject: SET UP B
SET UP C
»
Make sure the settings are 11 for SET UP B and 2
for SET UP C.
26 Automatic
colour correc-
tion 1. Using the colour correction
system (ccdc), apply auto-
matic colour correction.
»
Make sure there is no noticeable colour irregularity
left on the screen.
27 Colour system
performance
check 1. Receive the colour bar sig-
nal.
»
In the process mode and select L1. Check the col-
our and tint.
28 Video system
performance
check 1. Receive the monoscope pat-
tern signal.
»
In the process mode and select L2. Check the pic-
ture, brightness and sharpness.
29 Audio system
performance
check
»
In the process mode nad select L3. Check the bass,
treble.