According to MAME this game uses a 6502 running at 1.5 MHz.
No way will a 450 nS RAM keep up with that. Go with the fast
part.
(By the way, the NTE part is 300 nS).
"Christopher X. Candreva" wrote:
> My wife's Centipede went on the fritz over the weekend. (Before anyone
> says, this is a vector-related question, because the condition of me buying
> more vector games was getting her the Cenipede :-)
>
> Screen went blank. Put into self test, 2 beeps. Check manual -- 2 beeps
> means RAM F2 failure, which is listed as a 2114. Check the chip, it's a
> MM2114N.
>
> Mouser carries the NTE2114 -- for $12.
>
> Jameco lists a 2114N for $1.29 - 1k x 4, 450ns . They also list a 2114N-2
> 200ns version. Obviously I prefer either of these options.
>
> I recall some timing problems with replacement chips being posted a while
> back, so I wanted to check if anyone had experience replacing this
> particular RAM, could recomend using the faster chip to avoid such problems,
> or any other suggestions of things to check at the same time.
>
> -Chris
>
> ==========================================================
> Chris Candreva -- chris@westnet.com -- (914) 967-7816
> WestNet Internet Services of Westchester
> http://www.westnet.com/
Received on Mon Mar 29 14:05:50 1999
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