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Here Best Regards Emmanuel.
Reworking the DS / DS RTC chip
A couple weeks datashet when I finally got around to hooking it up Now the battery is dead, configuration is lost after relatively short time again and you get error-codes constantly. These are intended for short-term use with strong charge and discharge intervals – not for long-term storage with a comparatively small discharge rate.
Then circumstances kept me from working with it until now Note the battery holder! Go with the hot glue. I just want to tell you that I succesfully used your DS rework How-to.
I used datasjeet iron file that was about the exact width I needed and just slowly went back and forth about 50 times until I saw the metal and then used sandpaper the rest of the way.
Incidentally, my computer is an Compaq N, which seems to date from about The case is usually pretty much “solder-resistive” because of the anti-corrosion plating.
Possible Results Reworked chip inside a Mod.
The only things you need to do is: On March, 23rd, Chris xrisl [at] yahoo. The daily self-discharge rate on some rechargeables is higher than the current taken by the RTC. Care for the polarity!
I appreciate it greatly. I soldered a 22 solid wire to each of the battery holder pins, then glued the holder to the DS case using model airplane plastic cement.
DS1287 – DS1287 Real Time Clock Datasheet
Curiosity killed that cat. At that point you wish you could add an external battery.
Thank you very much for putting this mod on your web site. Soldered and used a CR battery with holder on top of the Worked like a charm and would like to thank you and I am very grateful I stumbled on your web site.
Have a look at the graphics below. I used a medium sized flat file Don’t use rechargeable batteries. I could not have gotten my Compaq DeskPro e back to clock life back without you! Without that webpage, I would never have thought of repairing it like that! It works like a champ!
After the dust cleared On January, 7th, Emmanuel Da Piedade emmanuel.
(PDF) DS1287 Datasheet download
Most likely you won’t get a wire soldered properly to it. Don’t ever solder directly on a coin-style Li-Cell. So you have my thanks and gratitude for putting that idea on the web.
Howe dougnflo [at] comcast [dot] net Kalamazoo, Michigan, U. Attached the two wires to the exposed pins and put the new lithium cell in the holder. My old computer has been out of action for months, but this week Datashwet got it going again by following the instructions on your webpage “Reworking the DS RTC chip”.
For anyone who attempts this mod