XG-V10XE (serv.man9). Page 20-59 - Sharp Projector Service Manual (repair manual). Page 8

1. Turn on the power (with the

lamp on) and warm up the
set for 15 minutes.

»

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

1. Feed the 100% white sig-

nal.

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.

1. Select the following group

and subjects.
Group : OUTPUT1
Subject : G1-BLK

G1-GAIN

For the R and B colors,
choose the following re-
spective subjects.
R1-BLK and R1-GAIN for R
B1-BLK and B1-GAIN for B

2. Make sure the process ad-

justment color bars are be-
ing displayed.

3. Connect the oscilloscope to

pin (3) (for G) of P1001.

4. Similarly connect the oscil-

loscope to the following for
the R and B colors.
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 colors.

3.7Vp-p

2.4Vp-p

`

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.