Electrical Adjustment - Sharp XV-Z9000U Service Manual

XV-Z9000U/E
Hook up a signal generator, or a DOSV or Mac personal computer to the projector in order to feed the
signals specified in the Adjusting conditions.
No. Adjusting point
1 EEPROM
initialization
2 RGB drive
adjustment (on
the PC board)
3 DLP voltage
adjustment
(reference)
4 Color wheel
index adjust-
ment

ELECTRICAL ADJUSTMENT

Adjusting conditions
1. Turn on the power (with the
lamp on) and warm up the
set for 15 minutes.
1. Feed the 100% and 0% sig-
nals for each of the red,
green and blue colors.
INPUT5
2. Select the following group
and subject.
Group: A/D
Subject: R-D (R)
G-D (G)
B-D (B)
1. Keep out any signal input.
2. Select the following group
and subject.
Group: DLP
Subject: VOLTAGE
1. Feed the color wheel index
adjustment pattern signal.
INPUT5
2. Select the following group
and subject.
Group: DLP
Subject: CW INDEX
Adjusting procedure
1. Make the following settings.
Press SW2002 to enter the process mode. Execute
the S2 and S4 commands on the SSS menu. With
the S2 command, all the circuit boards than the PC
board will be initialized. Do not activate the S1 com-
mand because otherwise the PC board itself will be
initialized.
(The delivered PC board has been factory-adjusted.)
If by any chance the PC board must be readjusted,
follow the instructions in "Adjusting the PC Board"
on page 28.
1. Using the control switches on the set or the buttons
on the remote control, adjust the setting until bit drop-
outs start at the white level.
1. Select the setting of the rank marked on the formatter
PWB, referring to the menu.
2. Make this adjustment when the DLP chip has been
replaced or when the combination of DLP chip and
formatter PWB has been changed.
3. Rank B C
Setting 1 2
1. Adjust the setting so that the R, G and B lamp tone
pattern should be smooth without noises.
R
G
B
24
D E
3 4