Circuit Adjustments - Christie LX700 Service Manual

Electrical Adjustment

Circuit Adjustments

CAUTION: The each circuit has been made by the fine adjustment at factory. Do not attempt to adjust the following
adjustments except requiring the readjustments in servicing otherwise it may cause loss of performance
and product safety. Before taking these adjustments, turn the projector for more than 10 minutes to sta-
bilize the operation.
[Adjustment Condition]
Input signal
Analog Computer signal ..... 0.7Vp-p/75 terminated (XGA)
Composite Video signal ... 1.0Vp-p/75 terminated (NTSC / PAL)
Component Video signal .... 0.7Vp-p/75 terminated (480i, 480p, 720p, 1080i)
White 100%
Picture control mode .......... "STANDARD" mode unless otherwise noted.
Lamp mode......................... "Normal" mode unless otherwise noted.
Note:
* Please refer to "Service Adjustment Menu Operation" for entering the service mode and adjusting the service data.
Fan Voltages adjustment
Equipment
1. Enter the service mode.
2. Change data values of each test point to adjust the fan
driving voltage.
Group No. Fan
250 - 0 FN907
250 - 1 FN907
250 - 2 FN903
250 - 3 FN903
250 - 4 FN905/906 TPFN3
250 - 5 FN905/906 TPFN3
250 - 6 FN904
250 - 7 FN904
250 - 8 FN902
250 - 9 FN902
250 - 10 FN901
250 - 11 FN901
250 - 12 FN908
250 - 13 FN908
LX700 Service Manual
16 steps gray scale pattern
Black 100%
Digital voltmeter
Test Point Adjustment value
TPFN1 5.0 +0.1 -0Vdc
TPFN1 13.8 +0 -0.1Vdc
TPFN2 4.0 +0.1 -0Vdc
TPFN2 13.8 +0 -0.1Vdc
5.0 +0.1 -0Vdc
13.8 +0 -0.1Vdc
TPFN5 4.5 +0.1 -0Vdc
TPFN5 13.8 +0 -0.1Vdc
TPFN6 5.0 +0.1 -0Vdc
TPFN6 13.8 +0 -0.1Vdc
TPFN7 5.0 +0.1 -0Vdc
TPFN7 13.8 +0 -0.1Vdc
TPFN8 5.0 +0.1 -0Vdc
TPFN8 13.8 +0 -0.1Vdc
100% full color bar pattern
W
PC-Auto calibration
Input mode
Input signal
1. Enter the service mode.
2. To start the auto-calibration for PC adjustment, select
Group "260", No. "0", and then change data value
"0" to "1".
After the auto-calibration completed, "OK" will appear
on the screen.
Video-Auto calibration
Input mode
Input signal
1. Enter the service mode.
2. To start the auto-calibration for composite-video
adjustment, select Group "260", No. "0", and then
change data value "0" to "1".
After the auto-calibration completed, "OK" will appear
on the screen.
Rev. 1 (11/08)
-43-
Y C G M R B BK
Computer mode
16-step gray scale computer signal
Video mode (Composite)
100% color bar signal
020-000120-01