I wonder what game they were playing to make that hole.
this i wondered to, i fixed one long time ago with the suggested conductive ink (thanks pa there was nearly nothing missing in your stock)
another broken one i fixed, believe it or not, with a number pad from a calculator, it looked quite strange.
this costed me days,
because internet in 1985?
friends who used the inty or had a old for spare parts????
everything i had to figure out myself.
taking a ohm meter and tested the function and created a table, i wonder today what capabilities i had in my youth
(i still have them, comment from "back to work program": "Mr. Schrader you are amazing you can make any tool from a piece of wire". but still i have no job, to know how to cheat ppl is much more important today, but i wonder where will lead us this, certainly no useful THING will result from it)
however, i assume it's burned, it looks like, corrosion it can hardly be because i guess it's a graphite coating and graphite can't corrode, but it can desintegrate (burn off).
two things can cause this;
to much power, but it's hard to imagine where this should come from.
heat, which is to me the most comprehensible possibility.
the intellivision has the power adapter integrated in very little space and with far to less cooling thus (you might have noticed this already) the case heats up enormousely above the power adapter.
unfortunately it's still powered when switched off and it still produces heat (only to disconnect from power grid will stop this)
i can imagine someone has the console placed decorative in his living room and still connected to the grid.
the paddle might be left for a long time in the worst position you can imagine, right on top of the power adapter, this will first cause the thing to heat up more because the controllor shields the heat flow
somewhat, the console will heat up a little more (perhaps open it once i assume you will see that it got to hot), if any conducting wire is heated up it has a higher resistance and it will produce even more heat, this is progressing until... yeah until in the worst case the whole electrical thingy will blow up stating this with a little blue cloud.
heat is a killer!
i have no idea why they placed the power adapter inside the case instead outside (except for design reasons).
even worse sony did the same mistake for their first Playstation, after they released the smaller PSone with an external power adapter all the problems of old Playstation was gone.
one could guess they might have learned something from the past but it seems they doesn't, they only learned how to save 1/2 cents.
the recent active ventilation of the PS is neither a good solution, it still heats up and it's noisy, what the heck put that shitty thing outside dammit!
pa's selfmade universal power adapter had cooling plates far bigger as the whole thing itself, it looked to my as a child very futuristic with these "wings" attached, but he didn't made this for fun.
this thing was not to kill and i assume it still does its work in someones lab after 40 years of use.
(caugh) i used it to blow up electrolyte condensers - greetings to jeri ellsworth (puff - puff - puff, i had a good laugh when i saw this at the end of one of her yt clips)
shit! i even started with disassembling as a child, i neither had any idea about but likewise to her it brought me experience, unlike her i didn't made it to a chip designer, i design space ships which is in fact not worse).
thus i really assume it was heat by looking at your picture of the controller mylar.
even if you can handle only a screwdriver i suggest to open the console, just to take a closer look at it.
an experienced dude (oh sorry girl as well) can tell you the problem by smelling (ok or looking at it).
because i really fear there is most likely a overheating problem, or even worse to much power at the controller also this i can imagine can be caused by overheating.
a wire don't likes heat but for semiconductors heat is acid and poison together, if it didn't blows them up it alters at least their function.
always by the minded way of progressing effects, thus it's to imagine a transistor outputs far more power as it should by specification.
after it was overheated the effect stays in a semiconductor, it's burned out.
if it's clean inside and has no marks of overheating you're lucky and can close the console and attach a new controller.
if it looks overheated i suggest to test the power layed on the controller first.
either check the second one to compare or use one of the schemata you find of the inty in the web.
if that result is negative you can also close it.
if not, then you're in trouble, little trouble at least, because if the power is really to high (which i see as the worst and least possible) any controller attached will have the same problem after a while.
most probably your lucky and the burning was caused by orange juice and the resulting high transition resistance.
but it could be as well all of the possibilities together, covered & stored in the wrong place (above a "raygun", i mean a TV tube), a little heat here, a little sticky fluid there this and that and all littles together result in malfunction.
wie papa immer zu sagen pflegte: "das geht ja schon kaputt wenn man es nur scharf ansieht"
yeah order the LTO Flash, if not for playing games (i'm sure you like to play them all) then at least to check the controllers with Joe's fabulous Controller Checking Demo.
(it's dammit the only useful i have for the macbook, i mean overall you can't check the function of a connected controller, not even with any of the controller softwares you can get for OSX. thus as strange as it sounds i need for this jzintv and the controller checking demo, something is missing in OSX, i assume it's the OS).
always disconnect your intellivision from the power grid if you don't use it for a longer time - it will live longer.
(and never play Bump 'n Jump for 30 hrs, it can cost your consoles life by smashing it on a wall)
Edited by Gernot, Thu Dec 7, 2017 4:52 PM.