Unresponsive 9100B

[MarkHaysHarris777]

(02-23-2015 02:52 PM)dfnr2 Wrote:  I am hopeful it's not the CRT, as I would expect the error light to come on. Any suggestions would be very much appreciated.

Where I would begin with this beast is to re-seat all of the cards and connectors; assuming its something simple that came loose in shipment (hopefully no connectors broke, and hopefully the CRT did not crack.

Be sure to remove power (and let it sit for a while) before you open it. Remember that the HV caps on that thing can hold a charge for a while that will kick your butt if you get across it (or stop your heart)! Carefully unplug every connector and plug it back in (maybe a couple of times). Carefully unplug each vertical board and plug it back in (and by carefully I mean VERY carefully. Sometimes the old connectors will be brittle and will crack or break (which is a bad thing permanently).

Make sure there isn't an internal fuse on that thing that may have gone bad; or a breaker (I don't know, I'm not familiar with the details).

If the connectors on the cards are oxidized you'll need to clean them (they are probably not gold so its a pretty good bet you've got some work to do. I suspect once you get the connectors and cards re-seated (and|or cleaned up) things will work again.

PS. I had an old Data-dog one time that quit working and what had happened was that one of the connectors on ONE vertical board had cracked so that there was not adequate pressure on one side of the card... we wedged a piece of foam against the board to get the right pressure and voila! (hopefully that has not happened to you... look carefully over all connectors

Good luck,
marcus