Eiki LC-WNS3200, Service Manual

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Electrical adjustment
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 Adjustment value
250 - 0 FAN1 5.0
±
0.1V
250 - 1 FAN1 12.5
±
0.1V
250 - 2 FAN2 5.0
±
0.1V
250 - 3 FAN2 12.5
±
0.1V
250 - 4 FAN3 4.5
±
0.1V
250 - 5 FAN3 12.5
±
0.1V
ADC auto calibration[VGA IN 1]
1.Input 100
％
color bar to VGA IN 1 terminal.
2.Enter service mode.
3.Select group 260, item 1, change the data from o to 1.
After calibrating, the data of group 260, item 0 will
change to o automatically.
ADC auto calibration[Component]
1.Input 100% color bar to component terminal.
2.Enter service mode.
3.Select group 260, item 1, change the data from o to 1.
After calibrating, the data of group 260, item 0 will
change to o automatically.
[Adjustment Condition]
● Input signal
Video ..................1.0Vp-p/75W , 116 steps gray scale (Compsite video signal)
Component ..........1.0Vp-p/75W , 100% full color bar or 16 steps gray scale (Component signal)
Computer ..............0.7Vp-p/75W, 16 steps gray scale
●Image mode .........." Normal" as default.
Note:
* Refer to "Service adjustment menu operation" for entering service mode and adjust the service data.
W Y C G M R B BK
16 steps gray scale
100% full color bar
100% White
100% White
100%Black
100%Black
Output Voltage adjustment
After replacing the Power Board, perform the Output
voltage adjustment as follows.
1. Connect digital voltmeter to the red wire (+), black
wire (-).
2. Adjust the voltage by using VR2001 as following.
AC Input Reading
220V 375V
±
1V
Caution:
Be sure to connect the lamp when taking this adjustment.
* This adjustment is not required even if the power board
is replaced because this adjustment is carried out before
parts shipment.