Author Topic: N8 Everdrive works on AV Famicom, but not NES  (Read 4393 times)

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Offline StarDust4Ever

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N8 Everdrive works on AV Famicom, but not NES
« on: March 28, 2015, 08:57 AM »
Hi. I bought my N8 Everdrive from StoneAge Gamer in Spring 2013. It is a "Deluxe Edition" in a gold Famicom Shell, serial #007.

Well, I bought an AV Famicom around the same time frame and it's awesome.

I've tried both a 3rd party adapter from Venezuela and an official "Gyromite" adapter with the Everdrive N8, and it works flawlessly in the AV Famicom, it never worked in my NES deck. My NES deck has numerous mods, including the expansion audio mod (using a grounded 10k audio volume pot operating as a true voltage divider, instead of the usual series 47kohm resistor), a CopyNES addon board for USB dumping, a blue power LED, and lockout disable (cut pin 4 on the lockout chip).

I can't seem to get the Everdrive to work using a Famicom adapter on the NES deck, even though it works flawlessly on the NES side my Super Retro Trio using the same adapters. Never had any issues with the Powerpak on my NES deck, or any other original or homebrew game.

Powerpak works on the AV Famicom using an adapter, and the Everdrive runs on my AV Famicom and Super Retro Trio using daisy chained adapters (ie NES <-> Famicom <-> NES <-> Famicom) but obviously not the NES.

My only thought is the CopyNES is somehow interfering with proper operation of the Everdrive on my NES deck. The NES CPU is socketed to the CopyNES USB board which is socketed to the NES. I have not attempted to uninstall the CopyUSB mod yet but the addon board can be uninstalled easily and the NES CPU reinstalled in the socket.

Just wierd the Everdrive N8 works on the AV Famicom natively and the Retrobit Super Retro Trio clone (with adapter) but not my NES. And I have no plans to buy an NES version of the Everdrive N8 for testing. I also do not have a second NES control deck handy for testing...

Thoughts?

Offline nuu

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Re: N8 Everdrive works on AV Famicom, but not NES
« Reply #1 on: March 28, 2015, 10:49 AM »
The N8 is known to have bus conflicts with CopyNES.

Offline StarDust4Ever

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Re: N8 Everdrive works on AV Famicom, but not NES
« Reply #2 on: March 28, 2015, 01:17 PM »
The N8 is known to have bus conflicts with CopyNES.
Ah, poodles!
http://krikzz.com/forum/index.php?topic=670.0
http://krikzz.com/forum/index.php?topic=1152.0
http://forums.nesdev.com/viewtopic.php?f=9&t=12234

Worse, it appears you can't just uninstall it on a whim due to the cap replacement. Plus I broke a pin when initially desoldering the NES CPU (to which I successfully repaired by soldering an extension using a scrap component lead). The NES CPU has been subjected to enough stress already that repeated removal and insertion from it's socket may not be good for it.

And to think all this time I thought it was a bad connection with the FC<->NES adapters. Well at least I've still got a nice shiny AV Famicom to play on whenever, and a Powerpak to use on the NES...  ;D
« Last Edit: March 28, 2015, 01:19 PM by StarDust4Ever »

Offline wilykat

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Re: N8 Everdrive works on AV Famicom, but not NES
« Reply #3 on: March 30, 2015, 03:30 AM »
Safer to leave your CopyNES alone and use a different NES or Famicom system just for playing ED carts.

Offline StarDust4Ever

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Re: N8 Everdrive works on AV Famicom, but not NES
« Reply #4 on: March 30, 2015, 07:15 AM »
Safer to leave your CopyNES alone and use a different NES or Famicom system just for playing ED carts.
Agreed. I'm not gonna make a stink over it. I've got two other systems to play the Everdrive on (AV Famicom and SRT) and the Powerpak to play on the NES. The CopyNES is a nice piece of kit and everything else works fine on my NES and my ED works fine on everything else. 8)