Hi Jorge,

Looks like an early unit as that is the older LPT42 PSU.

Make sure that all the cards have their edges cleaned, that may help as they do oxidize and that causes intermittent contact.

The FICL card is one hidden in the first stack either between the Digital and Analogue output cards or between the analogue output card and the video output card.
You'll have a hidden DSP card in the stack too.
In the middle stack, under the comms card, there will be the other DSP card.

Check the capacitors on the backplane for any ones bulging - they should be replaced as they look original.

You may need to ask MrTechGuy to find out prices for a replacement FICL card and maybe a replacement digital out card (if still available)...

Also, it may be worth keeping an eye out for a donor unit.

Good luck,

Steve