(Topic ID: 82366)

Judge Dredd is dead!! No power at all!!


By joekiss

5 years ago



Topic Stats

  • 63 posts
  • 22 Pinsiders participating
  • Latest reply 5 years ago by gilerakos
  • Topic is favorited by 3 Pinsiders

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There are 63 posts in this topic. You are on page 2 of 2.
#51 5 years ago

Why did it blow?? If I put a new one in will it blow also?

#52 5 years ago

I doubt if it "blew" like a fuse or something.

That's not what thermisters do. They just prevent a spike of normal range current from "shocking" the electronics when the game is first switched on. I have seen one leg break off of a thermister before like that. I think the joint just fails from thermal cycling (hot/cold).

That other gadget soldered across both the Black and White terminals is a MOV (metal oxide varistor). That is the one that blows up when there is a big surge of power (like a lightning strike) to save the machine. If the MOV blew from a big power spike, it looks obviously fried.

You should be able to replace the thermister and it should stay good for years and years.

RM

#53 5 years ago

So if I replace it all should be good??

#54 5 years ago
Quoted from joekiss:

So if I replace it all should be good??

Yes.

Like I said, the thermister is not absolutely necessary - it can be replaced with a short piece of wire heavy enough to handle wall current, but it's probably best to replace it.

You could use a piece of wire temporarily, then open it back up again when the replacement thermister comes in the mail. That way you can play the game in the mean time.

If anyone disagrees with me, feel free to chime in.

RussM

#55 5 years ago

Anyplace this could be bought locally?? Radio Shack??

#56 5 years ago

Possible, but unlikely. Worth checking, I guess.

The days of electronics parts at a local store are almost dead.

RM

#57 5 years ago

Wow, Russ, your knowledge is awesome on this! Good stuff, man!

#58 5 years ago

I'll be surprised if the varistor is not gone as well.

This should go without saying, but from here on out, do all work with the power off, and machine unplugged, just in case something lies within that switch.

#59 5 years ago

Whats the varistor?

#60 5 years ago

I replaced the 1.25 part and it fired right up!!! thanks again pinsiders!!!

#61 5 years ago

Glad it worked out.

RussMyers

#62 5 years ago

I hope it doesn't blow again. I did have to order 4 of the part to make the minimum order!

5 months later
#63 5 years ago

Have the same problem. I have to change the ntc thermistor. The thing is I live in Athens Greece and the current here is 230 volts and for the line filter I use 4 A slow blow fuse not 8 A. Should I put a different ntc thermistor? Any help for a new whirlwind owner?...

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