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NFG Forums => Info Requests => Topic started by: ken_cinder on January 16, 2009, 02:41:47 PM

Title: Need help finding source for chip or suitable replacement.
Post by: ken_cinder on January 16, 2009, 02:41:47 PM
I have four Sanyo LC321664AM-80 DRAM chips I need to replace. Finding a place to buy them has been a freaking nightmare.

Any other chip I can use that would be a suitable replacement?

Chip desc: 1MEG (65536words X 16bit) DRAM Fast Page Mode, Byte Write

A datasheet can be found here (http://www.digchip.com/datasheets/download_datasheet.php?id=494887&part-number=LC321664AM-80)
Title: Re: Need help finding source for chip or suitable replacement.
Post by: Tiido Priimägi on January 27, 2009, 07:55:09 AM
For 32X ?

32X uses these for frame buffers, 2 chips.
Title: Re: Need help finding source for chip or suitable replacement.
Post by: ken_cinder on January 27, 2009, 10:36:22 AM
No, it's for a Taito F3 motherboard.
Title: Re: Need help finding source for chip or suitable replacement.
Post by: Tiido Priimägi on January 29, 2009, 06:18:25 PM
Nobody will miss a US 32X...
Title: Re: Need help finding source for chip or suitable replacement.
Post by: ken_cinder on January 30, 2009, 12:20:16 PM
Tell that to Ebay, I'd rather buy a new F3 motherboard than spend 50-75% of the cost of one on the POS that is the 32X just for those chips. (It would seem most are selling for around $30-$40)
Title: Re: Need help finding source for chip or suitable replacement.
Post by: Tiido Priimägi on January 30, 2009, 09:37:14 PM
They're so expensive now ? wow.... last time I checked US 32X cost nothing, especially without cables...
Title: Re: Need help finding source for chip or suitable replacement.
Post by: ken_cinder on January 31, 2009, 04:00:20 AM
I'm going to have a look at pawn shops around here, but usually even they don't hang on to stuff that old, and they almost always ask more than it's worth.

For instance, Gamecube's were $109 NEW (With 1 game, I forget which) just before the Wii came out, the biggest pawn shop around here, was asking $99 for a used system with no game.
Title: Re: Need help finding source for chip or suitable replacement.
Post by: Fix_Metal on February 01, 2009, 12:27:43 PM
If it can be of any help, I've got a Sanyo LC331632M-12 just desoldered from a MD2 board.
Title: Re: Need help finding source for chip or suitable replacement.
Post by: ken_cinder on February 01, 2009, 12:50:08 PM
Thanks but that is not only bank incompatible, but pin too.
Title: Re: Need help finding source for chip or suitable replacement.
Post by: Fix_Metal on February 01, 2009, 10:48:57 PM
I thought so. Good luck finding it :)
Title: Re: Need help finding source for chip or suitable replacement.
Post by: NeWmAn on February 03, 2009, 06:30:38 AM
IJTF_Cinder:
Try to contact user "channelmaniac" on the NEO-GEO.com forum. He does game PCBs repairs, maybe he can help you with the parts you need.
He also owns this webpage: http://www.arcadecomponents.com (http://www.arcadecomponents.com).
Title: Re: Need help finding source for chip or suitable replacement.
Post by: ken_cinder on February 03, 2009, 07:42:22 AM
That's hilarious, I'm already in talks with him to trade the F3 for a 1 slot MVS.
He has a better chance of repairing it than I do, and he's aware of it's problem it has. He's very interested in my F3.

He wants an F3, I want a Neo Geo......looks to be a good thing. Just waiting to hear back from him about supplying me with a cart to go with it, as he only has 4 for his test bench right now. Told him I'd take anything with it, just so I can use it when I get it.