Amplifone compatibility question...

Vongoosewink

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OK, so I am trying to get an Amplifone monitor up and running for my Star Wars, and I could use a bit of input from the experts out there before I proceed. These things are a little rare, so I don't want to screw this up.

The Amp that I have came with a blue deflection board (A201014, marked "A"), but it came cracked in 2 places. The HV board looks OK though (A201012).

My pal Mike (Dethfactor on this forum) has awesomely donated a replacement deflection board to the cause, but it is the green version (also A201014, marked "C"). The question is, can I use the green board safely with the original HV board that came on the monitor? Are the green/blue boards basically the same? MY guess is they are, but better safe than sorry...

Any advice would be appreciated, as well as anything that I should do/check before I fire this baby up!

Photos below for clarity.

Here is a pic of the 2 boards side by side. The blue is the original that was in my monitor:
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Here's a pic of my monitor's HV board and harness:
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And just for fun, check out the catastrophic damage to my original deflection board:

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No problem you can swap them.

there must have been something really weird done to that blue board to get that huge damage !

Can you make a pic of the solder side.....wonder how many tracks are damaged....
 
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Don't chuck that old amp board. It is good for parts. The HV unit can be replaced on your HV section if it is bad for about $40. Good luck.
 
OK, so I am trying to get an Amplifone monitor up and running for my Star Wars ... advice would be appreciated, as well as anything that I should do/check before I fire this baby up!

Level42 is right on, go through the FAQ and do a proper rebuild and upgrade on both the deflection and HV boards. You have the notorious red HV transformer, which often goes bad and will take out other parts of your HV board when it does. Replace it before it does with Cinelab's new unit. There's also another mod to replace the heat-generating resistors with heat-sink-mounted TO-220 resistors. May be overkill for home use but if you're doing all the rest...

http://home.comcast.net/~retro-active1/pwpimages/Amplifone-HV-TO220-ResistorMod.pdf

Good luck!
 
Yeah, still love that mod. My cockpit is still running on the original idea of putting those resistors onto the heat-sink with the uglier big one's. The idea is the same though, put the heat away from the caps and into the heat-sink.

Together with the extra fan (mains powered) blowing across the HV and deflection boards my SW has been running without a single problem ever since. It has done two "Eurocades" meaning running for a entire day from 9.30 AM till 01.30ish AM the next day and believe me it was played the biggest chunk of that time....
 
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