Pinbot
Williams, 1986There are reports of people having issues with wiring melting due to the fact there is no inline fuse between the transformer and the 2 bridge rectifiers. Is it common for the bridge rectifiers for this machine to fail? Is it due to age, or from usage?
Yes electrolytic capacitors are first to fail because of age, the second is bridge rectifiers or diodes.
Not fuse protecting the bridges just after the transformer secondary windings was a engineering mistake for Williams.
This is a required upgrade. http://www.pinwiki.com/wiki/index.php?title=Williams_System_9_-_11#Bridge_Rectifier_Fuses
Note the inkochnito bridge board does the same thing and replaces the filter cap at the same time.
https://www.marcospecialties.com/pinball-parts/5040-09051-RC
NOTE: I think you can buy direct from him on pinside.
Quoted from northvibe:Marco is sold out. Any place to purchase?
ebay.com link: Pinbot Pinball Game Operations Service Repair Manual Bot Arcade Williams PPS WB
Quoted from Playdium:ebay.com link » Pinbot Pinball Game Operations Service Repair Manual Bot Arcade Williams Pps Wb
Oh sorry, I mean the inkochnito bridge board. I think k’s arcade or big daddy had them
Quoted from Playdium:Oh OK. I got mine from Big Daddy.[quoted image]
Love that mod! Did my black knight and two in my baywatch!
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Barnstable, MA