Testing a 1488 line driver...

[Gene Buckle]

>> Checked it.  -0.60v  There's a Elpac/TDC CB-3811 DC-DC converter on the
>> board that may have died.  I'll pull the board tomorrow and test right at
>> the legs of the device.  Thanks for questioning whether or not I'd checked
>> the -12v supply!
>>
>> Finding a replacement is gonna be a stone b*tch I think. :(
>> I may have to go to another DC-DC converter that is near the same size
>> that I can wire in.
>
> Something might be loading it down, too.  I'd check for that before assuming
> it's bad.
>
I'm not sure I know how to do that.  I was just going to pull the 
converter and power it up by itself to see if I get -12v out of it.

g.

-- 
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http://www.f15sim.com - The only one of its kind.