DOWNLOAD Sharp XG-V10XE Service Manual ↓ Size: 1.25 MB | Pages: 63 in PDF or view online for FREE

41

42

43

44

No.

Adjustment Items

Adjustment Conditions

Adjustment Procedures

1

Initialisation of EEPROM

1. Turn on the power (the lamp lights
up) and warm up the system for 15
minutes.

Make the following settings.
Press S2601 to call the process mode.
Execute the S2 and S4 commands on the
SSS menu. With the S2 command, all but
the PC boards will be initialised. Do not
execute the S1 command because this will
get the PC boards initialised. To readjust the
PC boards, refer to "Adjusting the PC
interface" on page 35.

2

RGB drive
adjustment

1. Feed the 100% white signal.
2. Select the following group and
subjects.
Group : A/D
Subject : R-D (R)
G-D (G)
B-D (B)

Using the set's control switch or the remote
controller's button, adjust the settings so that
there be some bit dropouts.

3

RGB1 system black level
signal amplitude adjustment

1. Select the following group and
subjects.
Group : OUTPUT1
Subject : G1-BLK
G1-GAIN
For the R and B colours, choose the
following respective subjects.
R1-BLK and R1-GAIN for R
B1-BLK and B1-GAIN for B
2. Make sure the process adjustment
colour bars are being displayed.
3. Connect the oscilloscope to pin (3)
(for G) of P1001.
4. Similarly connect the oscilloscope
to the following for the R and B
colours.
Pin (1) of P1001 for R
Pin (5) of P1001 for B

• 

Select G1-GAIN. Using the set's control
switch or the remote controller’s button,
adjust the setting so that the signal
amplitude be 3.7 ± 0.05 Vp-p.

• 

Select G1-BLK. Using the set’s control
switch or the remote controller’s button,
adjust the setting so that the white to
white level be 2.4 ± 0.05 Vp-p.

• 

Do the same for the R and B colours.

* The G1 settings affect all the R, G and B
signals at the same time. When the G1-BLK
setting has been changed, therefore, the R1-
BLK and B1-BLK settings are accordingly
modified. Also with a change in the G1-GAIN
setting, the R1-GAIN and B1-GAIN settings
are accordingly modified. In other words,
adjust the G settings first and then the R as
well as B settings.