Anyone have a Stern 26-1200 Coil in stock?

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Anyone have a Stern 26-1200 Coil in stock?

Post by paulohotline on Thu Nov 08, 2012 10:23 pm

Hey guys, in soldering a busted diode connecition on VUK ball return on my LTOR it is now no longer responding? Can I fry the diode by holding the soldering gun too long on the coil? I think I may of broken the connection of the diode by not dropping enough solder in the hole. Oh well, screw it, I just want a new coil in there.

Anyone have this puppy in stock, I will give it back to you when the new one comes in Smile

http://www.pinballlife.com/index.php?p=product&id=1332

#090-5044-00
Data East / Sega / Stern solenoid coil.


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Re: Anyone have a Stern 26-1200 Coil in stock?

Post by Malibu-ss on Fri Nov 09, 2012 12:05 am

Hey Paulo........I think I have a few in stock.

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Re: Anyone have a Stern 26-1200 Coil in stock?

Post by paulohotline on Fri Nov 09, 2012 8:30 am

Cool dude, can I pick one up tonight? The new one has been ordered!
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Re: Anyone have a Stern 26-1200 Coil in stock?

Post by Malibu-ss on Fri Nov 09, 2012 8:56 am

yes you may

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Re: Anyone have a Stern 26-1200 Coil in stock?

Post by paulohotline on Fri Nov 09, 2012 3:17 pm

Great news! I need my daily LOTR fix, this machine needs to be operational 24/7!
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Re: Anyone have a Stern 26-1200 Coil in stock?

Post by paulohotline on Fri Nov 09, 2012 4:20 pm

Hey Malibu, I ran out and picked up a 40W soldering iron. Big difference, I was able to get a nice solder flow going and fixed the diode connection. LOTR back online!
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Re: Anyone have a Stern 26-1200 Coil in stock?

Post by Malibu-ss on Fri Nov 09, 2012 5:41 pm

10% restocking fee lol!

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Re: Anyone have a Stern 26-1200 Coil in stock?

Post by paulohotline on Sat Nov 10, 2012 11:28 am

Hey Malibu, I will need that coil after all. When firing up the LOTR 30 minutes ago, that VUK coil seized and began smoking after a 10 minute game! Not sure why this happened as my soldering job was pretty solid but its toast. The sleeve appears to be ok. I hope this issue is not related to something else.

Before:
http://i49.servimg.com/u/f49/17/79/34/56/vuk_co10.jpg
After:
http://i49.servimg.com/u/f49/17/79/34/56/burnt_10.jpg

Can I come by and pick it up later this afternoon?

Paulo


Last edited by paulohotline on Sat Nov 10, 2012 12:02 pm; edited 1 time in total
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Re: Anyone have a Stern 26-1200 Coil in stock?

Post by Malibu-ss on Sat Nov 10, 2012 11:46 am

I will go out in the garage and make sure it is there,and this afternoon should be no problem.Hopefully it did not take out the transister

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Re: Anyone have a Stern 26-1200 Coil in stock?

Post by paulohotline on Sat Nov 10, 2012 1:35 pm

I have isolated the transister to Q5 on the power board here:
http://i49.servimg.com/u/f49/17/79/34/56/q5_tra10.jpg

I have a multimeter but am not 100% how to test it. Checking youtube now Smile

Its this part on marcos -> Transistor - 20N10L Mosfet
http://www.marcospecialties.com/control/keywordsearch;jsessionid=8838D988DA55163B2B38F067168219B3.jvm1?SEARCH_STRING=stp20n10l
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Re: Anyone have a Stern 26-1200 Coil in stock?

Post by Malibu-ss on Sat Nov 10, 2012 1:37 pm

I have the coil,and probably the transistor.
I tried to phone you,but you did not answer

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Re: Anyone have a Stern 26-1200 Coil in stock?

Post by paulohotline on Sat Nov 10, 2012 2:50 pm

Hey guys, how do you tell if a fuse is blown? Take a look at F21, will the fuse be completed broken if its toast? I could not get it out of the socket, too tight Smile

http://i49.servimg.com/u/f49/17/79/34/56/fuse_f11.jpg

According to the manual F21 is the Coils fuse
F21 3A 250V S.B. 50v DC Coils
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Re: Anyone have a Stern 26-1200 Coil in stock?

Post by Malibu-ss on Sat Nov 10, 2012 5:12 pm

looks toast to me.........I use a small screwdriver to get them out

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Re: Anyone have a Stern 26-1200 Coil in stock?

Post by paulohotline on Sat Nov 10, 2012 7:40 pm

Hey Malibu, I replaced the coil, soldered on no problem, replaced the fuse and fired it up. The coil seized in the up position right away, turned it off, tried again same thing. So its definitely the transistor that is shot. Dang it! If you can help me replace it on the driver board that would be great.

If anyone needs fuses or anything else from Pinball Life I am going to be putting an order in tomorrow. Let me know.
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Re: Anyone have a Stern 26-1200 Coil in stock?

Post by Malibu-ss on Sat Nov 10, 2012 10:31 pm

Hey Paulo
I can stop buy tomorrow night and fix it up for you

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Re: Anyone have a Stern 26-1200 Coil in stock?

Post by paulohotline on Sat Nov 10, 2012 10:47 pm

Hey dude, I will not be home until after 8pm will that still work or do you want to meet up on Monday afternoon?
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Re: Anyone have a Stern 26-1200 Coil in stock?

Post by Malibu-ss on Sun Nov 11, 2012 1:35 pm

how about 3 pm today?

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Re: Anyone have a Stern 26-1200 Coil in stock?

Post by paulohotline on Sun Nov 11, 2012 2:38 pm

Hey now, here is a photo of the back of the board, it appears that mosfet Q1 has been replaced previously:

http://i49.servimg.com/u/f49/17/79/34/56/q1_tra10.jpg
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Re: Anyone have a Stern 26-1200 Coil in stock?

Post by paulohotline on Sun Nov 11, 2012 10:33 pm

Hey Malibu, just want to thank you again for soldering in that transistor. I popped in the board, hooked it up and proceeded to play a 35 minute trouble free game. LOTR appears to be back online and working 100% Smile

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Re: Anyone have a Stern 26-1200 Coil in stock?

Post by Malibu-ss on Sun Nov 11, 2012 11:45 pm

Glad that it worked out!!

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Re: Anyone have a Stern 26-1200 Coil in stock?

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