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733 Posts
Well after spending a couple of weeks repairing both the HVPS and the SMPS in my ampro. The rebuilt blue CRT arrived today. I deligently removed the old one, marking everything as I went. Put the rebuilt tube in, routing all of the wires the same as before. Cranked it back up and ... Hooray! I was looking at the Windows desktop. About 2 seconds later - snap! - then snap!. The unit shuts down to the smell of something burning. I open it up and find that the Grid 2 is now at 35 volts. When I disconnect the grid 2 lead coming out of the HVPS it goes up to about 1000 volts or so. If I disconnect the Grid 2 from all of the neck cards it stays at 35 volts. Is there a chance I could have gotten a bad tube from VDC? I have not been able to find anything wrong in the way I assembled the projector?? I'm about through with this unit. I think I'll start looking for something not plagued with so many problems. Of course I would like to hear from those of you that might have an idea as to what might have happened. I'm not really ready to throw in the towel yet but I'm close. What a bummer!