Document
: LH-A136-15-OB-OPM-DR-1.00
Page 33 of 37
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5.
The receiver board problems:
The abnormal module position of IM is not bright, the state of the receiver board in the corresponding
position is work abnormally.
Inspection: Replace the receiver board in the corresponding position. And resends the receiver card
parameter to all receiver cards or sends to the specified receiver card.
6.
The calibration data is abnormal:
Some IMs are particularly bright when the screen is white, unlike others.
Inspection: Switch calibration off again, then switch to calibration on to confirm the existence of calibration
data.
You can also switch IMs data and receiver card data to confirm that the calibration data exists and is correct.
If none of the above is feasible, the corresponding calibration data needs to be reloaded and resend.
7.
The whole screen doesn't light up:
It may be caused by abnormal power supply and internal power board.
Inspection: Check to make sure the power supply and the power board are in order.
If the signal source is switched without a black screen, confirm that the input source is normal, the signal
line is normal, and the signal transfer board is working normally.
