Good daytime.
I've got a 286 laptop (or lapsize PC) with CGA display and internal modem which is not detected. At the bottom there is a latch with three DIP sockets, one of them is for FPU and another is probably for CMOS chip, third is undetected but I think it's for modem DSP. If anybody has a manual please scan it and post in reply - I've searched almost everywhere but only got an old image with cover from person which became inactive years ago.