Read Sharp XG-C40XE (serv.man3) Service Manual online
5
XG-C40XU
(
1
)
XG-C40XE
(
1
)
No.
Adjusting point
Adjusting conditions
Adjusting procedure
8
P SIGNAL
1. Connect the oscilloscope to
TP1102 for red.
TP1202 for green.
TP1302 for blue.
TP1302 for blue.
2. Make the following choice:
Group : OUTPUT 2
Subject : PSIG-H
Subject : PSIG-H
PSIG-L
3. Using the horizontal 10-step
signal, make sure no vertical
stripes appear every 12 dots.
(If any white or black vertical
stripes appear, finely adjust
the PSIG-L setting.)
stripes appear every 12 dots.
(If any white or black vertical
stripes appear, finely adjust
the PSIG-L setting.)
»
Adjust the PSIG waveform as shown below.
»
Make sure that the (G) and (B) waveforms are similar
to that of (R).
to that of (R).
Adjust the PSIG-H setting.
Adjust the PSIG-L setting.
3.7V 0.1V
2.3V 0.1V
GND
(With XGA signal input)
9
Sample and
hold pulse
phase checking
hold pulse
phase checking
1. Feed the XGA-mode 75-Hz
black signal.
2. Select the following group
and subjects.
Group : OUTPUT3
Subject: SH-PHASE,
Group : OUTPUT3
Subject: SH-PHASE,
GCK-PHASE
»
Make sure that the SH-PHASE and GCK-PHASE
settings are 11 and 6, respectively.
settings are 11 and 6, respectively.
10
RGB counter-
voltage
adjustment
voltage
adjustment
1. Feed the black-and-red
(25%) stripe signal (XGA).
2. Make the following choice:
Group : OUTPUT 3
Subject : RC (R)
Subject : RC (R)
»
Using the control switches or the remote controller
buttons, adjust the data in order to minimize the
flicker.
buttons, adjust the data in order to minimize the
flicker.
»
Make the same adjustment for BC (B), GC (G).
»
See if the image is equally adjusted at the center
and both sides of the screen. If not, readjust the
setting to have the image equal at right and left.
and both sides of the screen. If not, readjust the
setting to have the image equal at right and left.
11
RGB gradation
regeneration
adjustment
regeneration
adjustment
1. Feed the green-only SMPTE
pattern signal (XGA).
Group : OUTPUT 1
Subject : G1-BLK
Group : OUTPUT 1
Subject : G1-BLK
»
Adjust the G-BLK data until the gradation of the
portion
portion
1
(95% and 100% white) shown below
can be slightly recognized. Make sure also that the
gradation of the portion
gradation of the portion
2
(0% and 5% black) is
visible.
12
RGB white
balance
balance
1. Feed the 32-step gray scale
signal (XGA).
Group : OUTPUT 1
Subject : R1-BLK (R)
Group : OUTPUT 1
Subject : R1-BLK (R)
B1-BLK (B)
»
Choose the subjects R1-BLK and B1-BLK and
adjust the black balance of the gradation.
adjust the black balance of the gradation.
1
2
Click on the first or last page to see other XG-C40XE (serv.man3) service manuals if exist.