Eiki LC-XNS2600 Service Manual page 30

Electrical adjustment
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.
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 FAN1
250 - 1 FAN1
250 - 2 FAN2
250 - 3 FAN2
250 - 4 FAN3
250 - 5 FAN3
[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.
Adjustment value
5.0±0.1V
12.5 ±0.1V
5.0±0.1V
12.5±0.1V
4.5±0.1V
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.
16 steps gray scale
100% White
100% full color bar
W Y
100% White
-30-
100%Black
C G M R B BK
100%Black