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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/75W terminated (WXGA)
Composite Video signal ...
1.0Vp-p/75W terminated (NTSC / PAL)
Component Video signal .... 0.7Vp-p/75W terminated (480i, 480p, 720p, 1080i)
● Picture control mode ..........
“STANDARD” mode unless otherwise noted.
● Lamp control .......................
“High” mode unless otherwise noted.
Note:
* Please refer to “Service Adjustment Menu Operation” for entering the service mode and adjusting the service data.
16 steps gray scale pattern
100% full color bar pattern
Electrical Adjustments
WARNING : USE UV RADIATION EYE AND SKIN
PROTECTION DURING SERVICING.
CAUTION:
To prevent suffer of UV radiation, those adjustments
must be completed within 25 minutes.
Enabling/Disabling the Wind Sensor Function
When the Main Board is replaced with new one, the projector detects the clogged filter and rolls up the filter until
it ends because the wind sensor setting value in the memory IC on the new board is not setup correctly. To avoid
this operation, disable the wind sensor function temporarily following to the procedure below.
1. Enter the service mode, select group no. "240" and item no. "2". Change data value from "1" to "0". Now the
function of wind sensor is disabled.
2. After completing the "Fan driving voltage adjustment", set up to enable the function of the wind sensor. (Group
no. "240" , Item no. "2", Data value is set to "1")
3. Execute the adjustment "Filter calibration".
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