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Re: AppleColor RGB schematics

I don't have fuse with the proper rating handy... something smelled when it
blew, so I don't think it's going to be that simple...

On the bright side the HOT tests OK, and the flyback isn't visibly damaged
(and trust me, I've seen some bad flys in my time ;)

In arcade monitors, the fuse blowing is usually a shorted HOT, often
caused by a shorted fly... on these, it could be something different, since
there's a switcher on the input to generate the B+


Terry Olsen <tolsen64@hotmail.com> wrote:
: If you replace the fuse what happens?  Could it be the fuse got old and just
: blew???
: 
: Try unplugging the input to the High-Output Transformer and see if the fuse
: blows again.  If the fuse doesn't blow, then unplug the hi-voltage lead from
: the CRT and plug the input to the HOT back in and see what happens...
: 
: I've repaired many a device with the "shotgunning" method of
: troubleshooting.
: 
: 
: "Mark C. Spaeth" <mspaeth@plancherel.mit.edu> wrote in message
: news:401580d0$0$561$b45e6eb0@senator-bedfellow.mit.edu...
:> Well, after many years, my trusty AppleColor RGB has smoked.
:>
:> Although I could prob pick up another on ebay for less than the
:> cost of the parts for this one on ebay, I want to poke around
:> inside it anyway.
:>
:> I remember in the olden days that cracked solder joints around the fly
:> were a common failure, but since the monitor's survived this long,
:> I doubt that's the problem.  :)
:>
:> When I popped it open the main fuse was destroyed (black, shattered glass
: ;)
:> so I'm guessing the HOT may have shorted...
:>
:> In any case, does anyone have schematics for this monitor so my hacking
:> is more like repair and less like shotgunning? :)
:>
:> Thanks for any info.
:>
:> -- 
:> Mark Spaeth                       mspaeth@mtl.mit.edu
:> 50 Vassar St., #38.265            mspaeth@mit.edu
:> Cambridge, MA 02139
:> (617) 452-2354                    http://rgvac.978.org/~mspaeth
:>
: 
: 

-- 
Mark Spaeth                       mspaeth@mtl.mit.edu
50 Vassar St., #38.265            mspaeth@mit.edu
Cambridge, MA 02139               
(617) 452-2354                    http://rgvac.978.org/~mspaeth