(Topic ID: 173998)

Star Wars Episode 1: Neon Transformer Replacement


By creech927

2 years ago



Topic Stats

  • 7 posts
  • 5 Pinsiders participating
  • Latest reply 2 years ago by cabuford
  • Topic is favorited by 1 Pinsider

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#1 2 years ago

I've got a Star Wars Episode 1 that I'm trying to replace the Neon Transformer on. It lives in the handle of the lightsaber, but I'm unsure how to open the lightsaber up to get at the transformer. It appears to be riveted together. Do I need to drill out those rivets? Is there another way?

It seems awfully fragile...

-Greg

#2 2 years ago

yes you have to drill them out have you tried running 12v to it direct to test it? mine wasnt working either an ended up being a transistor on the driver board needing swapped out but its been so long i cant remember what one it was.

#3 2 years ago

Sure enough, took the assembly out and gave it 12 volts and it lit right up. Must be something driving it failing...

#4 2 years ago

I had the same problem on mine. I had to replace an IC chip, U34, on the driver board.

#5 2 years ago
Quoted from creech927:

Sure enough, took the assembly out and gave it 12 volts and it lit right up. Must be something driving it failing...

Mine only lit up 1/3 of the way, but checked out OK with 12v. I had to replace the ULN2803A chip at U35 . Soldered in a socket so I can now easily replace the chip if needed. $1 in parts.

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2 weeks later
#6 2 years ago

So which fix is needed? Mine works intermittantly and the 12v test works so.... I see one person say a transitor on the driver board needed replacing, another said they had to replace an IC chip, U34, on the driver board, and still another had to replace the ULN2803A. chip at U35. I am new to this machine so not sure which item I need to replace much less how to test them, did each have the same problem? I am confused so if any one has any help it would be appreciated!

2 weeks later
#7 2 years ago
Quoted from gentrsa:

So which fix is needed? Mine works intermittantly and the 12v test works so.... I see one person say a transitor on the driver board needed replacing, another said they had to replace an IC chip, U34, on the driver board, and still another had to replace the ULN2803A. chip at U35. I am new to this machine so not sure which item I need to replace much less how to test them, did each have the same problem? I am confused so if any one has any help it would be appreciated!

I'm not sure how to test the chips, so I went ahead and bought a few sockets and a few of both chips. Shipping was more than the ships! I guess I got lucky and started with U35 and it worked. I was going to do U34 next if it didn't.

Guess that's not much help but that was my plan.

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