RE: VECTOR: Amplifone FAQ diode mods

Nope I've been there too!  ;o)  I got some more fuses and F3+F4 still blow
with everything bar the power supply connected (obviously after I'd
rechecked my work as well!)  Here's the thing though...  I removed the
1N4002s from the 3716/3792's and turned the game back on.  Damn I wish I
hadn't...  My R3 literally burst into flames and it's taken out at least two
3904's, one U57 and one of the 3716's...  What the hell happened?  I've gone
from having a fully working deflection board to having more problems with it
than when I bought it broken in the first place!  I've got the parts in to
fix it, but that's not really the issue at the moment.  I've checked my
work, I've checked the components I used - everything should have been okay?
I *really* want to know what on earth went wrong?  Has anyone got any ideas?
I think that once I've got it going again, I'm going to leave it well
alone!!!

Paul

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Jonathan Stanley
Sent: 06 November 2004 18:30
To: [email protected]
Subject: Re: VECTOR: Amplifone FAQ diode mods

Sorry I don't have a picture of the mods, but I did just go through 
the F3 & F4 popping issue myself and it turned out to be a bad 
connection at the game board connectors.  Unplug everything off the 
deflection board except for the power supply and turn the game on and 
see if it doesn't pop the fuses.  If not then plug in just the game 
board connectors and see what happens.  Apparently a bad connection 
at the game board can cause F3 & F4 to blow almost immediately when 
powering up.

(It may have nothing to do with your deflection board upgrades).

Jonathan

On Sat, 06 Nov 2004 14:49:45 +0000, Paul Maddern wrote:
>Hey all
>
>Has anyone got a picture of the diode mods described in the
>amplifone faq
>for the deflection board?  I *thought* I'd followed the instructions
>(the
>very clear instructions) to the letter.  But I keep popping F3 and
>F4 when I
>power the cab on?  I've no spare fuses now, but I'd like to see what
>I've
>done wrong...
>
>Thanks
>
>Paul
>
>
>
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