Polar 115 EM Monitor

In my machine, when we power up,monitor display scan reference, when we scan reference point, backguage moves backward slow ,led v15 light up for moment.Then backgauge moves fast forward.During fast forward led v15 in PIcard light up but no size appear in machine.
We check PI card in another machine and found problem in PI card.
We do not have circuit diagram of PI card.
Please suggest what to check?

 

Hi sir:
You must need, to do a complete test for PI card.

However if you test in other machine, and gave the same problem, is time to replace the complete board.

But test the ; 1) Battery in CPU motherboard, see is low, you must have onl 10 minutes for to replace, otherwise you must lost all the information.

Do not waste to time +money, buy it from Polar.

There is NOT exist circuit electronic diagrams for to fix it the board, only Polar make this job.

Blessing