Re: Gottlieb System 1 fuse problem
- From: "Dan Beck" <biscuitbecks@*nospam*cableone.net>
- Date: Wed, 3 May 2006 21:16:04 -0700
Hi Dave,
please read the inserted comments below.
"Dave Martin" wrote
I have a Solar Ride that has a fuse problem that is driving me nuts. The
69V 1/4 amp fuse blows immediately when the machine is powered on. Here is
what I've done and checked so far:
2. Have tested the power supply board in another machine, it worked fine.
This rules out the power supply board.
More than likely. However, please consider this longshot possibility. In
the other machine, are you sure the 69 VAC circuit is not overfused, thus
covering up some weakness in the power supply? Not likely I realize, just a
thought.
4. If I pull pin 7 out of the connector when J1 is plugged into the power
supply board, the fuse does not blow (keep in mind pin 6 is still in the
connector).
Right, the fuse should not blow. Why? Because what you have done by
disconnecting pin 7 is to open the 69 VAC circuit by preventing the return
of the 69 VAC to the transformer.
5. Replaced fuse block with one that has been tested as working fine. No
difference.
I don't know where to look from here. It's my understanding that the
transformer is good based on some tests I did and the fact that the fuse
is in line after the transformer.
What voltage do you measure at the 69 VAC take offs at the transformer?
Here is a tedious idea. Desolder the leads from the 69 VAC take offs from
the transformer. Splice in your own wires from these 69 VAC take offs to
the appropriate endings (fuse/connectors, etc.) The idea is to eliminate
any bad cabinet wires; I know you have already done this, in a different
manner. See if you blow a fuse now.
My feeling is either the 69 VAC circuit in the power supply is fooling you
(does not seem likely), or the 69 VAC transformer winding is bad (again,
does not seem likely). I am looking forward to whatever further results you
can share with us!
Regards,
Dan
.
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