Anyone know what this big ceramic resistor is for?

Can I operate HS safely without it?

Can’t find a source for this one immediately.

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Thanks all! If I install LED flashers can I clip the resistor?

Could use some advice: Just popped a swapped playfield back into the cab and reconnected everything. Coils, GI, controlled lamps, cpu, display all work.

Test mode switches are dead. The switches I can test NOT in test mode I can tell don’t work include Start button, coin door test buttons, the outhole (it won’t kick a ball over). Coin chutes do work.

I thought test buttons were outside the matrix on j14, which works the burins when I short pins, well, it gets to the music test and nothing else.

Sooo... Why are they dead? I noticed grey/grn goes to the buttons which very much is in the matrix. So confused.

Any ideas how I can enter/advance test mode with shorting pins? And what the heck could be wrong?

Yep both connectors are good!

Well I was able to jump the pins on j14 and get into switch test.

So much weirdness, several matrix switches stuck on or not working. So something to go on.

NO idea why test switches out of the matrix aren’t working! There’s a solid green ground that goes from the coin door test buttons to ??? J14 has no green...

Also: Start button works in test, but won’t start a game. Plenty of creds. Why?!

Update: The coin door test button was bad

Now I’m in the test mode and there are plenty of switch issues (easy) and no special solenoids are working (ugh).

Anyone know if there’s a “generic” replacement motor for the beacon that’s not $60+? My gearbox is fine, if that matters. Just the actual coil needed really. But figure the motor is prob more common than a dedicated pinball part?

Hello! My High Speed is missing it’s music — I’m not sure it has the right MPU in it, and I’m not sure, even after research, whether music is on the MPU or the aux sound board. I’ve reseated cables. Game is 100% besides this issue. Any ideas where to start? I could reseat chips if I could ID which contained music.

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Can anyone confirm this or point my to a ROM?

Bumping above query once more, thanks! Music is not discussed in pinwiki or anywhere I can find!

Thank you! Giving it and a chip reseat a shot. Didn’t realize all sound was on one chip, that makes the issue a bit more confusing.