Looking into restoring my Data East - Star Wars

[DSB]

Ive managed to get the same TIP122 transistors, but the 2N4401 transistors next to them seem to be harder to find Confused
I have some PN100 transistors here, will they do the job ?
Ive looked then up and says they can be used as a replacement: http://www.jaycar.com.au/productView.asp?ID=ZT2283

http://australia.rs-online.com/web/c/semiconductors/discrete-semiconductors/bipolar-transistors/?searchTerm=2N4401&h=s&redirect-relevancy-data=636F3D3226696E3D4931384E4B6E6F776E41734D504E266C753D656E266D6D3D6D61746368616C6C7061727469616C26706D3D5E5B5C707B4C7D5C707B4E647D2D2C2F255C2E5D2B2426706F3D313326736E3D592673743D4D414E5F504152545F4E554D4245522677633D424F5448267573743D324E3434303126

Does this help with what your looking for?

[Dimsims]

I ended up using the PN100's and the reading on the multimeter are the same, so gets me going for now.

I think my trouble are further done the line now as one I added the new transistors, I turned the machine on again and the 4 bumpers gone stuck down then the fuse blew 
So im now looking into the 2x SN7402N IC chips, I think they may have copped some damage 

[saldejums]

good work

[Dimsims]

    Well I got it going again !!   

I ended up replacing all 4 TIP122 Transistors, all 4 2N4401 pre-driver Transistors.
After that all the bumpers were getting stuck down when the game was turned on
and keeped blowing fuses.
I replaced the 2 SN7402N IC chips and also put IC sockets in in case I ever have trouble with them again.
I then did another test and turning on the machine, all bumpers were fixed bar one that was still stuck down.

Was scratching my head for a while trying to figure out what to do next and I read up that sometimes if a short
happens on the any of the 4 bumpers, it can effect the reflexive circuit, that is no longer used on the revision 3 boards.
I found a diode that wasn't reading right and desolded it, then another test and BAM !! it works !! 



While I was blowing fuses I took the opportunity to replace all the fuse holders and fuses:



Here is a pic of most of the LEDs installed:



The Mad Amusements order finally arrived today 
So onto putting some new plastics on and then the Playfield protector, oh and also the cliffy hole protectors.

[DSB]

Nice work! Looks Great with LEDs installed. You might want to replace that plug on the right in the top picture. Looks like its got some burn marks?

[Dimsims]

Nice work! Looks Great with LEDs installed. You might want to replace that plug on the right in the top picture. Looks like its got some burnt marks?

The pins and the plug look ok still, the burn mark was from when the transistors blew up (fire works) lol

[DSB]

The pins and the plug look ok still, the burn mark was from when the transistors blew up (fire works) lol

Oh yes, I see! 

[Crashramp]

Looking great, well done!

Also love your Dim Sim avatar.

[dealers choice]

You have done really well nutting out the problems.    id need a lot more brains. i think ill stick to working on em's at least i can see if a switch is oen or closed.

[badgap64]

Good luck great machine

[Dimsims]

Hey all, its been a while since I last worked on this, been waiting for some good days to go out in the garage (been way to cold & a bit slack)

Over the last couple of days I've been doing a few repairs to the outside of the cab, to get it ready to paint.



I'm going to repaint the blue, red and the black out lines where needed.
Could anyone help with what to use for black out line ?

Also whats the best type brushes to use ?

[Mr Pinbologist]

Well done getting it going   But you might want to consider changing resistor R15 in the first pic (if you haven't done so since taking the pic).. looks like its had a hard life!!

Looking forward to seeing the end results. keep up the good work  

[Dimsims]

Update:

I've managed to get some of the blue paint down after a few more repairs, now need to get some red and black paint to finish it of:



Did some repairs to the back of the machine, you can see all 4 corners were gone and needed repairing.
Also the hole for the head box latch tool was well worn out, so I decided to fill and redrill it:



Some more blue paint and the redrilled the hole for the head box latch tool:



Its coming up better then I thought, well pretty good for me anyway lol.
Onto to the head box next.

[Crashramp]

Nice work, well done so far. 

[Strangeways]

Very nice 

Please make sure you replace that power cable