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hardhat

Member Since 31 Oct 2007
OFFLINE Last Active May 24 2012 9:06 AM

Posts I've Made

In Topic: Opcode Club

Mon May 21, 2012 3:41 PM

Well who can resist at $5 each? I joined and so did my son. I hope you hit 100!

In Topic: just got an Adam! but screen is corrupted. :(

Wed May 16, 2012 10:10 PM

The next thing to check is the power supply, to make sure it is producing the correct voltages. The video RAM is the most sensitive to poor voltages. The correct voltages should be +5, +12 logic, +12 inductive and -5, (plus ground, AdamNET bidirectional data and AdamNET reset). Which are which I've documented in the past but I can never seem to find it when I want it. They are all on the 9 pin connector from the side of the Adam going to the printer/power supply.

If the power supply is the issue, it is possible to replace it with a PC ATX power supply by grabbing the appropriate voltages from the various connectors on the ATX power supply and routing them to a DB-9 connector. The next time I build one of those, I'll be sure to take pictures of the steps involved as a reference.

In Topic: Jeepers Creepers - 2012 run

Wed May 16, 2012 8:40 PM

Okay, so I made some progress on Jeepers Creepers. Today I got the labels for the carts. So the last thing on the list is the booklet. So I'll be working on that this weekend and I hope to have the new CIB ready starting next week sometime. So hopefully that just keeps motoring along.

I like how the 30 years badge turned out on the stickers, and I'll try to post a photo of them soon.

In Topic: Sega Genesis Controllers on Colecovision?

Wed May 9, 2012 1:58 AM

I can confirm that a Y splitter for the joystick port works fine, and so can be used for choosing levels and so on.

As to whether you could remap buttons into the ColecoVision format, I'm not sure. You'd think it would be possible with a little rewiring at least, perhaps even with just a custom cable although you might require a little extra logic to make it all work.

In Topic: DINA system: some questions

Mon May 7, 2012 9:27 PM

Well as in the ColecoVision and the Adam, the VDP chip is the most sensitive to improper power and that garbling is typical. So there are youtube videos on how to take apart a ColecoVision power supply. I don't recall what the Dina power supply was like, but if it is like the Coleco one it would have +5, +12, -5, ground.

According to http://www.colecovis...olecovision.htm the ColecoVision power supply is wired as:
pin 1 +5v 9A
Pin 2 -5V 1A
Pin 3 +12V 3A
Pin 4 Common

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