Modded ColecoVision A/V Outputs New BIOS Coleco Vision

[doubledown]

Since the last one sold so fast here is your chance to get one.

 

ColecoVision

 

Up for auction is a completely refurbished and modified Coleco ColecoVision. Included in the auction are the ColecoVision game console, 2 controllers, Donkey Kong, Donkey Kong JR., and Zaxxon, a power supply, and a 6 Ft. gold-plated A/V cable. Everything is 100% guaranteed working, including console, controllers, games, and modifications.

 

Modifications:

 

1: Gold-plated, color-coded, RCA audio/video output jacks

 

This modification allows you to directly connect the game system to modern televisions or home theater systems. No longer are you required to use a TV/game switch, or forced to deal with blinking white sprites or audio “humming” while playing the game. This allows for the clearest picture and sounds ever available with a ColecoVision.

 

2: New BIOS chip installed

 

The original BIOS setup forced you to sit through 10 or 12 seconds of Coleco’s opening title screen when a Coleco-published game was inserted into the cartridge slot and the unit powered up. After the time delay you could then select the number of players and the difficulty. With the new BIOS chip, after the console is powered up, the instant you press one of the controller buttons the agonizingly long title screen is skipped and you continue on to the game.

 

Both of the modifications and the all of the refurbishing work was professionally done and installed by me. I built the A/V output circuit and installed the RCA output jacks, and I programmed and installed the new BIOS EPROM. I also cleaned and conditioned the expansion module interface port, cartridge slot, and on/off switch on the console. The controllers were completely disassembled and all direction contacts and buttons were cleaned and conditioned. Not only will this console work completely when you receive it, but it will work for many years to come.

[doubledown]

sorry, here's the link

 

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewI...item=8110737179

[Susuwatari]

Another one?

 

I gotta start cranking my hacks. I have one with AV modded and 2 more AV board ready to be installed but getting the old ROM out intact is a PITA, the solder just doesn't want to go away. extra flux and desoldering braid doesn't work well.

[doubledown]

*** SOLD *** BIN 22 Hrs 14 Min

[Zaxxon]

SHIT!!!! $200!!!! When I listed a CV I had A/V modded, either no one cared or knew what that meant at the time. I think I was barely able to get $65.

[Susuwatari]

Maybe it's the BIOS upgrade that makes up the other $135?

 

32K EPROM could be found for under $0.50 in lot of used EPROMs. (or out of old PCs)