Sharp XG-NV6XE (serv.man4) Service Manual ▷ View online
29
XG-NV6XE
No.
Adjusting point
Adjusting conditions
Adjusting procedure
21
PAL colour
saturation level
saturation level
1. Feed the PAL colour bar
signal.
Group : VIDEO 1
Subject : P-COLOR
Group : VIDEO 1
Subject : P-COLOR
2. Connect the oscilloscope to
pin (1) of P801.
»
Using the control switches or the remote controller
buttons, adjust the difference between the 100%
white portion and the red portion to 0.36 ±0.02 Vp-p.
buttons, adjust the difference between the 100%
white portion and the red portion to 0.36 ±0.02 Vp-p.
22
SECAM colour
saturation level
saturation level
1. Feed the SECAM colour
bar signal.
Group : VIDEO 1
Subject : S-COLOR
Group : VIDEO 1
Subject : S-COLOR
2. Connect the oscilloscope to
pin (1) of P801.
»
Using the control switches or the remote controller
buttons, adjust the data to have a level difference
of 0.50 ±0.02 Vp-p between the 100% white
portion and the red portion.
buttons, adjust the data to have a level difference
of 0.50 ±0.02 Vp-p between the 100% white
portion and the red portion.
23
Video white
balance
balance
1. Feed the NTSC mono-
scope pattern signal
Group : VIDEO 2
Subject : R1-GAIN
Group : VIDEO 2
Subject : R1-GAIN
B1-GAIN
»
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.
100% White Red
100% White Red
24
DVD Contrast
1. Feed the colour bar signal
of the 480I component sig-
nal to the BNC G(Y) input
terminal.
nal to the BNC G(Y) input
terminal.
2. Select the following subject.
Group : DVD
Subject : CONTRAST
Subject : CONTRAST
3. Connect the oscilloscope to
pin (1) of P803.
»
Using the control switch or the button on the
remote controller, adjust the amplitude between
the black and 100% white to 2.2 ±0.02 Vp-p.
remote controller, adjust the amplitude between
the black and 100% white to 2.2 ±0.02 Vp-p.
100% White
2.2
±
0.02Vp-p
25
DVD Tint
1. Feed the colour bar signal
of the 480I component sig-
nal to the BNC Y, Pb and
Pr input terminals. Feed the
sync signal only for the Y
signal.
nal 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
Subject : TINT
3. Connect the oscilloscope to
pin (2) of P803.
»
Using the control switch or the button on the
remote controller, adjust the B-Y waveform to form
a straight slope.
remote controller, adjust the B-Y waveform to form
a straight slope.
30
XG-NV6XE
No.
Adjusting point
Adjusting conditions
Adjusting procedure
29
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.
31
Audio system
performance
check
performance
check
»
In the process mode nad select L3. Check the bass,
treble and balance.
treble and balance.
30
Video system
performance
check
performance
check
1. Receive the monoscope
pattern signal.
»
In the process mode and select L2. Check the pic-
ture, brightness and sharpness.
ture, brightness and sharpness.
28
Colour
irregularity
correction gain
(in case of
colourirregularity)
irregularity
correction gain
(in case of
colourirregularity)
1. Feed the gray-only RGB
colour signal. (XGA 60Hz)
»
Adjust R4215 to minimize the right-hand and left-
hand colour irregularity.
hand colour irregularity.
27
Colour
irregularity
correction
position
irregularity
correction
position
1. Feed the gray-only RGB
color signal. (XGA 60Hz)
2. Find the colour irregularity
position on the screen.
3. Group : NOKO
Subject : NOKO-RL
»
If the colour is irregular, adjust the NOKO-RL data.
Set it to R for the right-hand colour irregularity and
to L for the left-hand one.
Set it to R for the right-hand colour irregularity and
to L for the left-hand one.
»
If there is no colour irregularity, turn off the saw-
tooth correction using SW4201.
tooth correction using SW4201.
26
DVD Colour
1. Feed the colour bar signal
of the 480I component sig-
nal to the BNC G(Y) input
terminal.
nal to the BNC G(Y) input
terminal.
2. Select the following subject.
Group : DVD
Subject : COLOR
Subject : COLOR
3. Connect the oscilloscope to
pin (1) of P803.
»
Adjust the level difference between the 100% white
and red portions to 0.15 ±0.02 Vp-p.
and red portions to 0.15 ±0.02 Vp-p.
100% White Red
32
RGB
performance
check
performance
check
1. Receive the RGB signal.
»
In the process mode and select L4. Check the pic-
ture, brightness, red, blue, clock, phase, horizontal
position, and vertical position.
ture, brightness, red, blue, clock, phase, horizontal
position, and vertical position.
33
Off-timer
performance
check
performance
check
»
In the process mode and select OFF. Make sure that
the off-timer starts with “5” (minutes), counts down
each minute in 1 second, and turns off the set at “0”.
the off-timer starts with “5” (minutes), counts down
each minute in 1 second, and turns off the set at “0”.
31
XG-NV6XE
No.
Adjusting point
Adjusting conditions
Adjusting procedure
S4
“Factory setting 4”
Remote controller
setting
setting
Process
adjustment
adjustment
»
Make the following settings.
38
Factory settings
36
IrDA
performance
check
performance
check
»
Make sure the IrDA signal can be received.
37
Keystone
correction
performance
check
correction
performance
check
»
Make sure the keystone correction functions well.
34
Thermistor
performance
check
performance
check
1. Heat the thermistor using a
dryer.
»
Make sure the “TEMP” is displayed.
35
Automatic
synchronization
synchronization
1. Receive the PHASE check
pattern signal.
»
Call the VGA/S-VGA/XGA/SXGA/UXGA mode and
make sure that the clock, phase, horizontal and
vertical positions can be automatically adjusted.
make sure that the clock, phase, horizontal and
vertical positions can be automatically adjusted.
32
XG-NV6XE
ADJUSTING THE PC INTERFACE (CPCi-0035CE02. PC I/F Unit)
1. Setting the oscilloscope
Set the range to DC 1 V/div and 5µ/div.
2. Connecting the PC Interface
1)
Fit the PC I/F in position and make sure the CON2, CON3 and CON4 connectors are all tight in place.
2)
Connect the cable between the ANALOG OUTPUT (PC computer) and the DSUB connector (INPUT1 of the
proejctor).
proejctor).
3)
Set the projector’s input selector to the INPUT1 position. Make sure the Dsub/BNC selector is at the Dsub
position.
position.
4)
Set the PC computer in the XGA mode (1024 x 768, 60 Hz, 32-step scale). Adjust the output amplitude to
700 mVp-p (terminated with 75 ohms) for the black-to-white portions.
700 mVp-p (terminated with 75 ohms) for the black-to-white portions.
5)
Turn on the power.
3. Adjusting and checking the level
1)
Press the S5001 switch to go to the process mode.
2)
Set the SH-PHASE on the OUTPUT3 menu to 8. (Make the characters on screen clear and crisp.)
3)
Connect the oscilloscope to TP2 and adjust the M-BRIGHT data of OUPUT2 so that the signal’s black level
be 1.9 V.
be 1.9 V.
4)
Adjust the R-BRIGHT data of A/D so that the black level of the signal at TP1 be 1.9 V.
5)
Adjust the B-BRIGHT data of A/D so that the black level of the signal at TP2 be 1.9 V.
6)
Make sure the GAIN data on the A/D menu is 155.
4. Adjusting the DTV
1)
Set the switch to the BNC input terminal of INPUT1
2)
Select the signal type of the user menu option for the component.
3)
Feed the Y signal of 480P to the G(Y) input terminal. Keep the R(Pr) and B(Pb) signals off.
4)
Connect the voltmeter to TP1, and adjust the DTV’s B-BRIGHT data to 2.65±0.02 V.
5)
Connect the voltmeter to TP3, and adjust the DTV’s R-BRIGHT data to 2.65±0.02 V.
6)
Finally press the S5001 switch again to quit the process mode.
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