Signature check
38
Nio 2-3-5 MP
7.3 Signature check
Introduction:
This test should be performed after replacing an Interface Board. The
Signature Check tests a part of the Video circuit on the Interface Board.
To perform the Signature check:
1. Run the software tool
Signature test.exe
2. In the menu, select the head and click on the button
Measure
. The
signature check is running now, displaying a number of test pat-
terns.
3. After completion, the software returns if there were errors or not.
If there were errors, check the file
Signature.log
in the root direc-
tory of the software tool.
How to judge the information from
the log file
The Signature test actually consists of 2 signature checks. Signature 1 is
calculated at the input of the FPGA on the Signal board. Signature 2 is
calculated at the outputs of the FPGA.
So, the knowledge of which of the signature checks is faulty can give
an indication of where the problem resides.
•
If Signature 1 and Signature 2 are both faulty, there is a problem
that can reside on the imaging board in the PC, a problem with the
video cable, or a problem with the display’s Signal board. So, first
figure out if the imaging board or video cable is not faulty.
•
In case Signature 1 should be OK, but Signature 2 is faulty, the
problem resides on the Signal board.
Содержание E-2320 C
Страница 2: ...2 Nio 2 3 5 MP...
Страница 11: ...First level service Nio 2 3 5 MP 11 5 First level service...
Страница 18: ...Advanced service 18 Nio 2 3 5 MP 6 Advanced service...
Страница 34: ...BLOS calibration 34 Nio 2 3 5 MP Check the Include Backlight check box Click the Calibrate button...
Страница 35: ...Functional tests Nio 2 3 5 MP 35 7 Functional tests...
Страница 43: ...Packaging instructions Nio 2 3 5 MP 43 18 Close the box and tape it...
Страница 49: ...Technical specifications Nio 2 3 5 MP 49...
