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Electrical Adjustments
1. Enter the service mode.
Lamp mode : Eco
2. Connect a digital voltmeter to test point “TPFANA” (+)
and chassis ground (-).
Select group no. “250”, item no. “0” and change data
value to adjust voltage to be 5.0 ±0.1V.
3. Connect a digital voltmeter to test point “TPFANB” (+)
and chassis ground (-).
Select group no. “250”,item no. “2” and change data
value to adjust voltage to be 5.5 ±0.1V.
4. Connect a digital voltmeter to test point “TPFANC” (+)
and chassis ground (-).
Select group no. “250”, item no. “4” and change data
value to adjust voltage to be 5.0 ±0.1V.
5. Connect a digital voltmeter to test point “TPFANA”
(+) and chassis ground (-).
Select group no. “250”,item no. “1” and change data
value to adjust voltage to be 13.5 ±0.1V.
6. Connect a digital voltmeter to test point “TPFANB” (+)
and chassis ground (-).
Select group no. “250”,item no. “3” and change data
value to adjust voltage to be 13.5 ±0.1V.
7. Connect a digital voltmeter to test point “TPFANC”
(+) and chassis ground (-).
Select group no. “250”,item no. “5” and change data
value to adjust voltage to be 13.5 ±0.1V.
1. Fan Control adjustment
* Before setting, you need to check which type of LCD pan-
el is placed on the projector according to the item "LCD
Panel/Prism Ass'y removal" in the chapter "Optical Parts
Disassembly".
1. Enter the service mode.
2. Panel Type Check
Select group no. “290”, item no. “0”. Check the data
value as follows;
Data value: 0 For L-Type of LCD Panel
Data value: 20 For R-Type of LCD panel
3. Panel Type Setting
Select group no. “290”, item no. “1” and change data
value from 10 to 0 or 20 depending on your LCD Panel
type. When the data value reaches 0 or 20, it returns
to 10 quickly. The gamma-characteristics changes ac-
cording to your selection.
2. Panel Type Check and Setting
Pedestal adjustment [PC]
1. Enter the service mode.
2. Receive the 16-step grey scale computer signal with
Computer2 [RGB] mode.
3. Connect an oscilloscope to test point “TP_G1” (+) and
chassis ground (-).
4. Select group no. “0”, item no. “0” and change data
value to adjust the pedestal level and black level to be
the same level.
5. Connect an oscilloscope to test point “TP_R1” (+) and
chassis ground (-).
6. Select item no. “1” and change data value to adjust the
pedestal level and black level to be the same level.
7. Connect an oscilloscope to test point “TP_B1” (+) and
chassis ground (-).
8. Select item no. “2” and change data value to adjust the
pedestal level and black level to be the same level.
Pedestal Lebel
Black Lebel
1. Enter the service mode.
2. Receive the 16-step grey scale computer signal with
Computer2 [RGB] mode.
3. To start the auto-calibration for PC adjustment, select
group no. “260”, item no. “0” and then change data
value from “0” to “1”. After the auto-calibration com-
pleted, "OK" will appear on the screen.
3. Auto Calibration adjustment [PC]
Below adjustments are performed when the above auto
calibration is failed.
Gain adjustment [PC]
1. Enter the service mode.
2. Receive the 16-step grey scale computer signal with
Computer2 [RGB] mode.
3. Connect an oscilloscope to test point “TP_G1” (+) and
chassis ground (-).
4. Select group no. “0”, item no. “3” and adjust the ampli-
tude “a” to be minimum by changing the Data value.
5. Connect an oscilloscope to test point “TP_R1” (+) and
chassis ground (-).
6. Select group no. “0”, item no. “4” and adjust the ampli-
tude “a” to be minimum by changing the Data value.
7. Connect an oscilloscope to test point “TP_B1” (+) and
chassis ground (-).
8. Select group no. “0”, item no. “5” and adjust the ampli-
tude “a” to be minimum by changing the Data value.
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