Thanks Ray. I found a picture of the main board online and indeed it does appear to be a socket. I plan to open my 200 up to replace the NiCd with a super capacitor. While I have it open I may do a Y2k/Personalized ROM swap.
Kurt -------------------------------------------- On Mon, 3/30/15, ray gordon <[email protected]> wrote: Subject: Re: [M100] T200 Rom question To: "[email protected]" <[email protected]> Date: Monday, March 30, 2015, 9:34 PM #yiv2350431080 #yiv2350431080 -- .yiv2350431080hmmessage P { margin:0px;padding:0px;} #yiv2350431080 body.yiv2350431080hmmessage { font-size:12pt;font-family:Calibri;} #yiv2350431080 Hi Kurt,Judging based on what's in the T200-TechRef manual & service manual, the chips in question are(32K) #HN613256P, and (8K) #HN61364P. Based on the crappy pix in the scanned manuals,I'd say they are likely socketed, but I can't promise that. Based on a quicky search of my epromdatafiles, the above chips *DO* seem to correspond to standard 27256X &2764X pinouts, however,I can't guarantee that they are functionally compatible, however, it seems likely. YMMV. best,Ray > Date: Mon, 30 Mar 2015 20:11:09 -0700> From: [email protected] > To: [email protected] > Subject: [M100] T200 Rom question > > According to the manual, the ROM on the T200 is contained in two chips. > M13 which is an 8k ROM chip, and M15 which is a 32k chip. Are these > standard 27C256 and 27C64 chips in terms of pin configuration? I think > they are in sockets but I'd have to pull mine apart to know for sure. > Does anybody know if they are soldered to the motherboard or in sockets? > > Kurt
