Electrical Adjustment - Sharp XG-P10XU Service Manual

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 3.3V power
supply
adjustment
3 2.6V power
supply
adjustment
4 R drive
5 B drive
6 G drive

ELECTRICAL ADJUSTMENT

Adjusting conditions
1. Turn on the power (make
sure the lamp lights up) and
warm up the unit for 15 min-
utes.
1. Turn on the power.
2. Connect the digital voltme-
ter to TP7201.
1. Turn on the power.
2. Connect the digital voltme-
ter to TP7202.
1. Make the following choice.
Group : A/D
2. Feed the 100% red-only sig-
nal. Make the following
choice.
Group : A/D
Subject : R-D
1. Feed the 100% blue-only
signal. Make the following
choice.
Group : A/D
Subject : B-D
1. Feed the 100% green-only
signal. Make the following
choice.
Group : A/D
Subject : G-D
Adjusting procedure
» Make the following settings:
Press S2601 to call up the process mode and
execute S2 and S4 in the SSS menu. Now the
system, with the PC board not included, is initial-
ized. Do not execute S1 because otherwise the
PC board will be initialized.
To adjust the PC board, follow the instruction in
"Adjusting the PC Interface". (See page 34)
» Adjust VR704 so that the voltmeter should read
3.300 V ±100 mV.
» Adjust R705 so that the voltmeter should read
2.600 V ±50 mV.
» Using the control switches or the remote controller
buttons, adjust the data so that the signal be-
comes bit-less (noise).
» Using the control switches or the remote controller
buttons, adjust the data so that the signal be-
comes bit-less (noise).
» Using the control switches or the remote controller
buttons, adjust the data so that the signal be-
comes bit-less (noise).
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XG-P10XU