Read Sharp XG-NV21SE (serv.man4) Service Manual online
22
XG-NV21SE
XG-NV21SM
XG-NV21SA
ELECTRICAL ADJUSTMENT
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.
signals specified in the Adjusting conditions.
No.
Adjusting point
Adjusting conditions
Adjusting procedure
1
EEPROM
initialization
initialization
1. Turn on the power (make
sure the lamp lights up) and
warm up the unit for 15 min-
utes.
warm up the unit for 15 min-
utes.
»
Make the following settings:
Press S5001 to call up the process mode and ex-
ecute S2 in the SSS menu. Now the system, with the
PC board not included, is initialized. Do not execute
S1 because otherwise the PC board will be initialized.
To adjust the PC board, follow the instruction in "Ad-
justing the PC board". (See page 27)
Press S5001 to call up the process mode and ex-
ecute S2 in the SSS menu. Now the system, with the
PC board not included, is initialized. Do not execute
S1 because otherwise the PC board will be initialized.
To adjust the PC board, follow the instruction in "Ad-
justing the PC board". (See page 27)
2
R drive
1. Make the following choice.
Group : A/D
Subject : GAIN
Make sure the GAIN value
is 163.
Subject : GAIN
Make sure the GAIN value
is 163.
2. Feed the 100% red-only
signal, SVGA (800 x 600)
60Hz, 700mV at PC IN con-
nector.
Group : A/D
Subject : R-D
60Hz, 700mV at PC IN con-
nector.
Group : A/D
Subject : R-D
»
Using the control switches or the remote controller
buttons, adjust the data so that the signal becomes
bit-less (noise).
buttons, adjust the data so that the signal becomes
bit-less (noise).
3
B drive
1. Feed the 100% blue-only
signal, SVGA (800 x 600)
60Hz, 700mV at PC IN con-
nector.
Group : A/D
Subject : B-D
60Hz, 700mV at PC IN con-
nector.
Group : A/D
Subject : B-D
»
Using the control switches or the remote controller
buttons, adjust the data so that the signal becomes
bit-less (noise).
buttons, adjust the data so that the signal becomes
bit-less (noise).
4
G drive
1. Feed the 100% green-only
signal, SVGA (800 x 600)
60Hz, 700mV at PC IN con-
nector.
Group : A/D
Subject : G-D
60Hz, 700mV at PC IN con-
nector.
Group : A/D
Subject : G-D
»
Using the control switches or the remote controller
buttons, adjust the data so that the signal becomes
bit-less (noise).
buttons, adjust the data so that the signal becomes
bit-less (noise).
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