Output Voltage Adjustment - Eiki Lc-XL200 Service Manual

Electrical Adjustment
z Output Voltage adjustment
After replacing the Power Board, perform the Output
voltage adjustment as follows.
1. Connect a digital voltmeter to pins 2 (+) and 1 (-) of
K6a
.
2. Adjust the voltage by using VR601 as following.
AC Input Reading
230V 370V ±2V
Caution:
Be sure to connect the lamp when taking this adjust-
ment.
* This adjustment is not required even if the power board
is replaced because this adjustment is carried out be-
fore parts shipment.
x Fan Voltages adjustment
Equipment Digital voltmeter
1. Enter the service mode.
2. Adjust the voltage on each test point by changing the
data values of the Group - No.
Group No. Fan Test Point
250 - 0 FN909 TPFN11
250 - 1
FN909 TPFN11
250 - 2
FN906 TPFN6
250 - 3
FN906 TPFN6
250 - 4
FN904 TPFN4
250 - 5 FN904 TPFN4
250 - 6 FN902 TPFN2
250 - 7 FN902 TPFN2
250 - 8 FN901 TPFN1
250 - 9
FN901 TPFN1
250 - 10 FN903
TPFN3
250 - 11 FN903
TPFN3
250 - 12 FN905
TPFN5
250 - 13 FN905
TPFN5
c PC Auto calibration
1. Enter the service mode.
2. Select Group "260", No. "0" and set data value "0"
v Component Auto calibration
1. Enter the service mode.
2. At first, input the 100% color bar signal (480i).
3. Select Group "260", No. "0" and set data value "0" to
4. Change another input signal and take step 3 again.
Adjustment value
4.5 +0.1 -0Vdc
13.8 +0 -0.1Vdc
4.5 +0.1 -0Vdc
13.8 +0 -0.1Vdc
4.5 +0.1 -0Vdc
b Video Auto calibration
13.8 +0 -0.1Vdc
4.5 +0.1 -0Vdc
13.8 +0 -0.1Vdc
4.5 +0.1 -0Vdc
13.8 +0 -0.1Vdc
1. Enter the service mode.
4.5 +0.1 -0Vdc
2. To start the auto-calibration for composite-video
13.8 +0 -0.1Vdc
4.5 +0.1 -0Vdc
13.8 +0 -0.1Vdc
Adjustments item no. [3] to [5] are carried out at the
spare parts shipment in the factory, therefore they are
not required when the main board is replaced with
new one.
-42-
Input mode Computer mode (Input 1 RGB)
Input signal 16-step gray scale computer signal
to "1".
The projector begins auto-calibration and then "OK"
will appear on the screen.
Input mode Video mode (Input 2 -Component)
Input signal 100% color bar signal (480i)
100% color bar signal (480p)
100% color bar signal (720p)
100% color bar signal (1080i)
"1".
The projector begins auto-calibration and then "OK"
will appear on the screen.
Input mode Video mode (Input 3 Video)
Input signal 16-step gray scale composite video
signal
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.