Read Sharp XG-C40XE (serv.man4) Service Manual online
29
XG-C40XU/XE
No.
Adjusting point
Adjusting conditions
Adjusting procedure
22
Video input
panel signal
amplitude
adjustment
panel signal
amplitude
adjustment
1. Feed the NTSC 10-step sig-
nal.
2. Select the following group
and subject.
Group: VIDEO2
Subject: R1-GAIN
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).
TP1301 (B) and TP1201
(G).
»
Select R1-GAIN and adjust the setting so that the
R and G signals have the same amplitude.
R and G signals have the same amplitude.
»
For the blue colour, adjust the setting the same
way.
way.
23
Video white
balance
balance
1. Feed the NTSC monoscope
pattern signal
Group : VIDEO 2
Subject : R1-BLK
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.
buttons, adjust so that the entire screen looks
evenly colourless.
24
DTV white
balance
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.
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.
for SET UP C.
26
Automatic
colour correc-
tion
colour correc-
tion
1. Using the colour correction
system (ccdc), apply auto-
matic colour correction.
matic colour correction.
»
Make sure there is no noticeable colour irregularity
left on the screen.
left on the screen.
27
Colour system
performance
check
performance
check
1. Receive the colour bar sig-
nal.
»
In the process mode and select L1. Check the col-
our and tint.
our and tint.
28
Video system
performance
check
performance
check
1. Receive the monoscope pat-
tern signal.
»
In the process mode and select L2. Check the pic-
ture, brightness and sharpness.
ture, brightness and sharpness.
29
Audio system
performance
check
performance
check
»
In the process mode nad select L3. Check the bass,
treble.
treble.
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