Porchy

I have no background in electronics or programming. Everything I have learnt over the years has been through self teaching and the help from other kind people willing to lend a hand.

Feb 142018
 

I’ve been playing around with a couple of Konami Viper PCB’s that Olly sent me recently.

The idea was to get a working PCB for his Silent Scope Fortune Hunter.
This board set was non booting and a quick visual inspection showed some signs of ‘man-made’ damage.
First was the 3793-A voltage sense IC was a bit mangled which had lifted most of its traces. Chances are this was causing the PCB to not boot as this chip is responsible for making sure the voltage levels are what they should be.

As its a small pin count it was fairly easy to patch up the traces.

The second issue was the DS2430 IC has been removed. Luckily this was provided in a small bag so I was able to refit it (after dumping it). This IC is in a TO-92 package and is responsible for providing one aspect of the security on this hardware. I never took any pictures of this but its only 3 legs to solder and there was no damage.

After dealing with these the PCB booted right up
Taking pictures of this was really hard due to the amount of glare my cheap screen gives.

From here I can get the game to boot up but I cannot test beyond that. I will send this PCB back to Olly and hope it works out for him.

 Posted by at 3:33 am
Feb 072018
 

Today Hammy sent me 3 PAL chips.
We have one from the M84 Hammerin’ Harry, this one is very similar to the one we already have but it has a “-D” appended to the label ID. Next one is from the M72 Hammerin’ Harry and the PAL from Warriors of Fate on CPS1.
The Hammerin’ Harry ones have been tested by Hammy.

Thanks to Hammy for sending these.

 Posted by at 4:12 pm
Jan 272018
 

I now have a way of creating new DS2430 replacements for a Konami Viper Silent Scope Fortune Hunter game.
I can only do Silent Scope FH at the moment but I might expand to other titles in the future if I get hold of the hardware.
The DS2430 has a unique factory lasered registration number which is used as part of the security of these things. As long as there is a good Timekeeper NVRAM fitted then the game will reinitialise it on this game and it does not seem to play a part in the security.

If anyone needs a replacement then get in touch and we can sort something out. I will need the ROM ID from a new DS2430 in order to make a new file.

 Posted by at 1:14 pm

Reader submitted posts

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Jan 012018
 

Over the years there have been people asking if they can submit posts of their own.
Aside from friends of mine I have never really wanted to open up registrations for everyone.
I have now finally got around to enabling a frontend to allow people to submit their own posts.
It can be found under the “Contact/Links” menu and is just a trial right now.
If it doesn’t take off or gets abused in any way then it will be removed and we will go back to business as usual.
Hopefully we will get some more diverse content going on as a result of this

 Posted by at 2:49 pm

Happy New Year

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Jan 012018
 

Happy new year everyone to everyone that visits this place and a big thanks to all that have either contributed or made a donation.
Hope you all have a great 2018

 Posted by at 12:48 pm