Sharp XG-C455W (serv.man6) Service Manual ▷ View online
XG-C455W/PG-C355W
4 – 9
[2] ELECTRICAL ADJUSTMENT
1. ELECTRICAL ADJUSTMENT (1)
No.
Adjustment Item
Adjustment Conditions
Adjustment Procedures
1
EEPROM initialization
1) Turn on the power (the lamp turns on)
and perform aging for 15 minutes.
1) Perform the following setting.
Press S6501 to enter the process mode, and execute SS2 of the
SS menu.
SS menu.
2
Model setting
(Process menu)
1) Select the following.
1) Select the following.
Group: MODEL
Adjustment item: MODEL-SELECT
Adjustment item: MODEL-SELECT
1) Series bellow
XG-C455W: 0
PG-C355W: 1
PG-C355W: 1
3
R-bright check
Contrast adjustment
(manual or automatic)
Contrast adjustment
(manual or automatic)
1) Input the white/black wind pattern sig-
nal of amplitude level 96% (0.67 Vpp)/
0% of XGA60Hz to COMPUTER1.
0% of XGA60Hz to COMPUTER1.
2) Select the following.
Group: AD
Adjustment item:R-Bright
R-Contrast
Adjustment item:R-Bright
R-Contrast
(Process gamma linkage)
1) Check the fixed value.
R-Bright: 125
2) Observe the chromaticity of 96% white wind pattern portion using
CA100.
3) On the screen where bit dropouts occur, raise the R-Contrast
value. Adjust to the point where black to bright red bit dropouts
occur and the x value changes by 30/1000 or more.
occur and the x value changes by 30/1000 or more.
4
G-bright check
Contrast adjustment
(manual or automatic)
Contrast adjustment
(manual or automatic)
1) Input the white/black wind pattern sig-
nal of amplitude level 96% (0.67 Vpp)/
0% of XGA60Hz to COMPUTER1.
0% of XGA60Hz to COMPUTER1.
2) Select the following.
Group: AD
Adjustment item: G-Bright
G-Contrast
Adjustment item: G-Bright
G-Contrast
(Process gamma linkage)
1) Check the fixed value.
G-Bright: 125
2) Observe the chromaticity of 96% white wind pattern portion using
CA100.
3) On the screen where bit dropouts occur, raise the G-Contrast
value. Adjust to the point where black to bright green bit dropouts
occur and the y value changes by 30/1000 or more.
occur and the y value changes by 30/1000 or more.
5
B-bright check
Contrast adjustment
(manual or automatic)
Contrast adjustment
(manual or automatic)
1) Input the white/black wind pattern sig-
nal of amplitude level 96% (0.67 Vpp)/
0% of XGA60Hz to COMPUTER1.
0% of XGA60Hz to COMPUTER1.
2) Select the following.
Group: AD
Adjustment item: B-Bright
B-Contrast
Adjustment item: B-Bright
B-Contrast
(Process gamma linkage)
1) Check the fixed value.
B-Bright: 125
2) Observe the chromaticity of 96% white wind pattern portion using
CA100.
3) On the screen where bit dropouts occur, raise the B-Contrast
value. Adjust to the point where black to bright blue bit dropouts
occur and the y value changes by 30/1000 or more.
occur and the y value changes by 30/1000 or more.
6
Black level/amplitude
adjustment of LCD
panel input signal
adjustment of LCD
panel input signal
1) Select the following.
Group: OUTPUT 1
Adjustment item: G1-BLK
G1-GAIN
R: R1-BLK
R1-GAIN
B: B1-BLK
B1-GAIN
Adjustment item: G1-BLK
G1-GAIN
R: R1-BLK
R1-GAIN
B: B1-BLK
B1-GAIN
2) Check that the white pattern for pro-
cess adjustment is displayed.
3) Connect a synchroscope to 2P of
(P1401).
4) For red and blue, connect to (P1401-
1P) and (P1401-3P) respectively.
1) Select G1-GAIN, and adjust the signal amplitude as follows using
the operation SW or button on the remote control (see figure (1)
below).
4.6 Vpp
below).
4.6 Vpp
± 0.05 V
2) Select G1-BLK, and adjust the white-white level as follows using
the operation SW or button on the remote control (see figure (2)
below).
0.8 Vpp
below).
0.8 Vpp
± 0.1 V
3) Adjust red and blue in the same way.
(G waveform diagram of process pattern)
* The part defining the amplitude to the waveform is the same for both
R and B.
R and B.
7
Sample-hold pulse
delay amount adjust-
ment
delay amount adjust-
ment
1) Input the black signal of XGA mode.
2) Select the following.
2) Select the following.
Group: OUTPUT3
Adjustment item: ENBR-DLY
G: ENBG-DLY
B: ENBB-DLY
Adjustment item: ENBR-DLY
G: ENBG-DLY
B: ENBB-DLY
1) Check the blur and ghost of characters of OUTPUT3.
2) Raise the ENBR-DLY value until pre-ghost appears on the left of
2) Raise the ENBR-DLY value until pre-ghost appears on the left of
characters of OSD.
3) When the value is reduced by 1 to 2 points, pre-ghost disappears.
Set to the value reduced by 3 from the value where pre-ghost dis-
appears.
(Set to 8 in the following case: When the ENBR-DLY value is 20,
pre-ghost appears; when it is 13, pre-ghost disappears.)
appears.
(Set to 8 in the following case: When the ENBR-DLY value is 20,
pre-ghost appears; when it is 13, pre-ghost disappears.)
4) Adjust green and blue in the same way.
5) When vertical strips is visible, adjust ENBXG-PH (0 to 3)
5) When vertical strips is visible, adjust ENBXG-PH (0 to 3)
NOTE: EPSON panels may vary by 1 to 2 points from lot to lot. To
improve the ghost quality, perform this adjustment.
White-white (2)
Amplitude (1)
XG-C455W/PG-C355W
4 – 10
2. Cautions for 3D color shading correction/adjustment
The following measurement and adjustment must be performed under the same conditions using the following:
• Dark room (Block out stray light.)
• Diffuse reflection (mat type) screen
The setting of the projector must be performed under the following conditions:
• Power save disabled (to keep the lamp stable during measurement)
• RGB mode of the input terminal COMPUTER1 (component mode canceled - just to be sure)
1. System setting (“Setting -” System setting””)
Condition setting for PG-C355W/XG-C455W
2. Teaching
Basically, teaching should be measured only once from model to model. However, if the optical characteristics of the set are changed significantly,
it is necessary to reset the conditions according to changes and to perform remeasurement.
it is necessary to reset the conditions according to changes and to perform remeasurement.
Measurement method of correction factor
1) Determine the standard set of PG-C355W/XG-C455W. Each one unit (n units)
2) Switch the set to the RGB mode of the input terminal COMPUTER1.
8
RGB counter voltage
adjustment
adjustment
1) Input the counter voltage adjustment
signal. (XGA)
2) Select the following.
Group: OUTPUT1
Adjustment item: R-COM
G-COM
B-COM
R-COM2
G-COM2
B-COM2
Adjustment item: R-COM
G-COM
B-COM
R-COM2
G-COM2
B-COM2
1) Adjust flicker using the operation SW or button on the remote con-
trol so that it becomes minimum.
2) When flicker appears on the screen unevenly, adjust the center
area considering the whole balance.
9
RGB white balance
adjustment
adjustment
1) Input the RGB 50% gray signal.
(XGA60Hz)
2) Select the following.
Group: OUTPUT1
Adjustment item: R1-BLK (R)
B1-BLK (B)
Adjustment item: R1-BLK (R)
B1-BLK (B)
1) 1. Adjust R1-BLK and B1-BLK so that the following chromaticity
values are obtained in the middle of the screen using CL200.
x = 294
x = 294
± 5, y = 327 ± 5
10
sRGB white balance
adjustment
adjustment
1) Input the RGB 50% gray signal.
2) Select the following.
2) Select the following.
Group: OUTPUT1
Adjustment item: S-G1-BLK
S-B1-BLK
Adjustment item: S-G1-BLK
S-B1-BLK
1) Adjust S-G1-BLK and S-B1-BLK so that the following chromaticity
values are obtained in the middle of the screen using CL200.
x = 322
x = 322
± 5, y = 341 ± 5
11
Auto keystone initial-
ization
ization
1) Select the following.
Group: LINE
Adjustment item: Calibration
Adjustment item: Calibration
1) With the set placed on a level surface, press the ENTER key and
check that K-Sensor value is 0
± 3.
Check that keystone is caused by tilting the unit.
12
Tracking check
1) Input the RGB 10-step gray scale sig-
nal (inversion on top and bottom).
2) Select the following.
Group: OUTPUT3
Adjustment item: GAMMA
Adjustment item: GAMMA
1) Check the lower gradation tracking.
When it is improper, optimize the GAMMA value.
1: Default (normal)
2: Green up
3: Red and blue up
4: Green up
5: Red up and blue down
6: Blue up
7: Red and green up
8: Green and blue up
1: Default (normal)
2: Green up
3: Red and blue up
4: Green up
5: Red up and blue down
6: Blue up
7: Red and green up
8: Green and blue up
NOTE: When changing the GAMMA value, readjust the white bal-
ance.
13
Auto color shading
correction
correction
1) Perform the auto color shading correc-
tion using the color shading correction
system (ccdc).
system (ccdc).
1) Check that remarkable color shading is not found on the screen.
System option
Simultaneous writing of 3D correction value:
Simultaneous writing of 3D correction value:
No (not checked)
Char transmission interval:
0 ms
Binary interval:
2 ms
Creation of correction value by linear correction factor:
No (not checked)
Number of image captures (during adjustment or measurement): Twice
Number of image captures (during teaching):
Number of image captures (during teaching):
4 times
No.
Adjustment Item
Adjustment Conditions
Adjustment Procedures
XG-C455W/PG-C355W
4 – 11
3) Execute teaching of the standard set under the following conditions.
Condition setting for PG-C355W/XG-C455W
3. Color shading correction (adjustment)
Condition setting for C355W/C455W
Correction method
Select the model name created in the section (2) and perform color shading correction/adjustment.
If the set has significantly different optical characteristics from the standard or shows color shading or line dropouts, execute teaching and adjust it
using the correction factor.
using the correction factor.
3. ELECTRICAL ADJUSTMENT (2)
Model name:
Enter the model name newly.
Resolution:
1280 x 800
Binary interval:
2 ms
Correction value, X direction:
33
Correction value, Y direction:
25
Number of correction bits:
8
Adjustment value, minimum:
-48
Adjustment value, center:
0
Adjustment value, maximum:
48
Number of teachings:
5
Teaching interval:
24
Brightness variation direction by adjustment value: Brightness UP by increasing the adjustment value (checked)
Adjustment point:
Adjustment point:
3D (checked)
TG system (selected)
Tone 0 (checked)
Tone 1 (checked)
Other tones are not checked.
TG system (selected)
Tone 0 (checked)
Tone 1 (checked)
Other tones are not checked.
Adjustment point (Test pattern display level)
Tone 0:
Tone 0:
11%
Tone 1:
40%
Adjustment color:
Adjustment with RGB (checked)
Correction setting
Tone 7:
Tone 7:
Default
Tone 6:
Default
Tone 5:
Default
Tone 4:
Default
Tone 3:
Default
Tone 2:
Default
Tone 1:
Correction by correction factor
Tone 0:
Correction by correction factor
No.
Adjustment Item
Adjustment Conditions
Adjustment Procedures
14
Component offset
adjustment
adjustment
1) Select the following.
Group: AD
Adjustment item: C-R-OS
C-B-OS
Adjustment item: C-R-OS
C-B-OS
1) Check the fixed values.
C-R-OS: 260
C-B-OS: 260
C-B-OS: 260
15
Video bright/contrast
adjustment
adjustment
1) Select the following.
Group: VIDEO
Adjustment item: V-CONT
V-BRIGHT
Adjustment item: V-CONT
V-BRIGHT
1) Check the fixed values.
V-CONT: 134
V-BRIGHT: 68
V-BRIGHT: 68
16
Video tint adjustment
1) Select the following.
Group: VIDEO
Adjustment item: V-HUE
Adjustment item: V-HUE
1) Check the fixed value.
V-HUE: 128
17
Video color saturation
adjustment
adjustment
1) Select the following.
Group: VIDEO
Adjustment item: V-COLOR
Adjustment item: V-COLOR
1) Check the fixed value.
V-COLOR: 139
18
sRGB check
sRGB input.
1) Check that the chromaticity values are in spec.
X=322
±5
Y=341
±5
19
Vertical stripe level
check
check
1) Receive the RGB gray scale signal.
1) It must be better than the vertical stripe boundary sample.
20
Checking of off-timer
performance
performance
1) Select the following.
Group: LINE
Adjustment item: OFF
Adjustment item: OFF
1) Make sure that the off-timer starts with 5-minute display, counts
down 1minute for 1second, and turns off when 0minute is dis-
played.
played.
XG-C455W/PG-C355W
4 – 12
4. Adjustment mode process menu
Forced disabling of the System-Lock of this model
1) Disabling procedure
With System-Lock input window onscreen, press the “MENU”, “ENTER”, “ENTER”, “MENU”, “ENTER”, “ENTER” and “MENU” keys, in this order,
on the remote controller.
on the remote controller.
21
Checking of ther-
mistor performance
mistor performance
1) Heat the thermistor with a hair dryer.
1) Make sure the temperature warning is displayed.
22
Automatic sync opera-
tion
tion
1) Receive the phase checking pattern
signal.
1) Make sure that Clock, Phase, H-POS and V-POS can be automat-
ically adjusted in the VGA/S-VGA/XGA mode.
23
DVI input operation
check
check
1) Send the video signal to the DVI termi-
nal.
1) Check that an image is properly projected
24
Monitor out check
1) Input the video and audio signals to the
COMPUTER1 and COMPUTER2 ter-
minals.
minals.
2) Connect another monitor to the monitor
out terminal.
3) Connect a speaker with a built-in ampli-
fier to the audio out terminal.
1) Check that image selected with the projector is displayed on
another monitor connected to monitor out terminal and sound is
heard from the speaker connected to the audio out terminal.
heard from the speaker connected to the audio out terminal.
25
RS232C operation
check
check
1) Connect the unit and a PC with the
RS232C cable.
1) Send a command from the PC, and check it functions correctly.
26
USB operation check
1) Connect to a PC with an USB cable.
1) Check that forward/reverse operation is enabled on the PC screen
using the remote control.
27
LAN operation check
1) Connect to a PC with a LAN cable.
1) Check that communication is possible.
28
Remote control check
1) Check the wired remote operation.
2) Check the remote control operation.
2) Check the remote control operation.
1) Check that the wired remote control terminal is activated.
2) Check the remote control operation.
2) Check the remote control operation.
29
Model name check
1) Send “TNAM 1” and “MNRD 1”h with
RS232C command.
1) Check that the appropriate model name is displayed correctly.
30
Delivery settings
1) Make the following settings.
No.
Adjustment Item
Adjustment Conditions
Adjustment Procedures
Destination
Process
Remote control
adjustment
adjustment
USA
SS4
Factory setting at 4
Others
SS3
Factory setting at 3
ENTER
ENTER RIGHT LEFT ENTER
ENTER MENU
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