Memory chip substitute?

[Richard A. Cini]

The board is a Solid State Music MB7 16k board. I have (at least) one bad
chip on it.



-----Original Message-----
From: cctalk-bounces at classiccmp.org [mailto:cctalk-bounces at classiccmp.org]
On Behalf Of Allison
Sent: Monday, August 15, 2005 1:34 PM
To: cctalk at classiccmp.org
Subject: Re: Memory chip substitute?


>
>Subject: Memory chip substitute?
>   From: "Richard A. Cini" <rcini at optonline.net>
>   Date: Mon, 15 Aug 2005 11:12:20 -0400
>     To: CCTalk <cctalk at classiccmp.org>
>
>All:
>
>	I'm repairing a few S100 memory boards and I'm having trouble
crossing 
>a memory chip on the SSM MB7 16k board. The chip is an NEC UPD410D. I 
>have D5101LC1's "in stock". Are these equivalent?

No, not even close.

UPD410 is a fairly fast semistatic 4kx1.  5101 is cmos 256x4.

What memory board has a upd410 on it?  Very unusual.


Allison