LH IONIVAC IM 21 gauge controller meter turns left?

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steve_rb
Posts: 133
Joined: Sun Oct 18, 2009 8:18 am
Real name: Steve Robinson
Location: Tehran University

LH IONIVAC IM 21 gauge controller meter turns left?

Post by steve_rb » Tue Apr 28, 2015 7:25 am

When I turn on our Leybold IONIVAC IM 21 controller, the analog meter needle usually was turning right to show the correct pressure and slowly was moving left as pressure goes down but something happened yesterday and now when I turn on this controller needle moves to left end fast and locks there. Anyone has similar experience?

Also manual for this controller can help if anyone has got a copy?

Agoo

steve_rb
Posts: 133
Joined: Sun Oct 18, 2009 8:18 am
Real name: Steve Robinson
Location: Tehran University

Re: LH IONIVAC IM 21 gauge controller meter turns left?

Post by steve_rb » Wed Apr 29, 2015 4:45 pm

I striped the controller and tracked display meter connections. Finally I found N5558V chip draw too much current and PS 30V drops to 18V. Now I need schematic to find the problem. Anyone can help me with the Electronic schematic?

Agoo

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