Wednesday, 6 August 2014

Simpsons Pinball - Bad connectors

A common problem on Pinball machines is burnt molex connectors due to the long hours they were run for and heat build up.

What a mess, notice the wires connected to the test points. These go to the new coin mech as this was originally an american machine. I am sure there must be a closer gnd / 12v source to tap into rather than the backbox and directly to the power supply.


New 9 pin header installed and recapped the power supply.


Hmm toasty, this connector plugs into the playfield power board (PPB).


Replaced both connectors, the label maker also got a workout.




Saturday, 26 July 2014

Data East PPB Board

I have been after a Simpsons Data East pinball machine for years and when one came up locally I couldn't resist. Although it was bought as working it still needs quite a bit of work, mostly cosmetic but also some board repairs, replacing connectors etc. Anyway lets get started, while changing all the fuses to the correct values I noticed a bad fuse holder on the PPB board.

CPC sell a replacement the part # is FF02911, it is pretty much identical to the ones Data East used.



For some reason Q4 has been removed, maybe to replace Q5 and they didn't have a spare TIP36? R16 was burnt so was replaced with a new 200ohm 1/4 resistor. I have ordered a TIP36 along with some molex parts more to come soon.

Thursday, 7 November 2013

Atomiswave 2 Naomi


For those of you that haven't heard about this fantastic project get yourself over to http://64darksoft.blogspot.co.uk/. In short he is porting every Atomiswave game to Naomi so all us hardware owners can play them on our Naomi setup either via netboot or CF card. There are some real hidden gems on the Atomiswave so get donating and give the nice man all the money you can spare.

Thursday, 3 October 2013

Virtual Boy

I wasn't planning on documenting this since it isn't that interesting but things have been very quiet when it comes to 'post worthy' stuff.

I picked up a Virtual Boy that was sold as not working because I wanted the cool rental case that came with it to store my loose system in. I thought it was going to be the usual faulty screen problem but after testing it I found it to be completely dead. I opened it up and one of the caps had exploded and the custom overly complex voltage regulator wasn't outputting 5v. Someone had clearly hooked up the wrong voltage / polarity power supply at some point. The custom voltage regulator was all surface mount parts and again overly complex so I did a google search for '7805 virtual boy' and sure enough it brought up this image.


I followed this schematic and added a small heatsink to the 7805 and the system fired right up. Sorry about the lack of pictures and being a bit vague on this one.

Sunday, 3 March 2013

Having some Fon

I recently decided to get a 'Fon Spot' to connect to my home broadband allowing me access to the millions of Fon Spots all over the UK when out and about. Pretty much everyone who has BT Broadband offers a free Wifi Fon Spot whether they know it or not. Anyone with a Fon / BT membership can login and use it free of charge.

Being cheap I had a google to see if there were any other options besides buying the Fon Simpl which is about £35 + postage. I came across this french blog site which has several unofficial Fonbasic firmware files. I just so happened to already own a Buffalo WHR-HP-G54 which I used to use for wireless netbooting before making a CF reader. Although it is said to be untested it works great and my Fon account allowed me to login to the neighbors wifi within 20 minutes of signing up. So there you have it a cheaper (or free in my case) option to buying a Fon Simpl.

I have also fixed all the download links yet again.

Friday, 6 July 2012

NaomiCF

NaomiCF allows you to write all your Naomi 1 / 2 rom files to compact flash (CF) card to be played on the real hardware. This will require a Sega CF box / card or home made reader and any card when using dimm v4.02 firmware (check older posts).

I am guessing this works on Chihiro and Triforce too but I no longer have the hardware to check.

If you use this software please buy a registration code and support the author.

download

Thursday, 22 March 2012

Links fixed.

Nothing new to report at the moment but all the megaupload links have been updated with new working ones.