NEC VERSA 4000 Service Manual

Also see for VERSA 4000 BATTERY CHARGER WITH AC ADAPTER: Manual Manual Manual Manual

Contents

NEC VERSA 4000 Service Manual Manual pdf 11 page image

Technical Information 1-5PCMCIA SlotsThe Versa 4000 provides a 5 volt, or 3.3 volt interface for either two Type I/Type IIPCMCIA cards, or one Type III PCMCIA card.Diskette Drive and the NEC VersaBay IIA standard 1.44-MB diskette drive comes installed in the VersaBay II slot on the front ofthe system. The VersaBay II expansion slot allows the user to replace the standard diskettedrive with a number of different NEC options including a CD-ROM reader, a second bat-tery pack, or an additional hard disk drive using the release latches on the bottom of theunit.KeyboardThe built-in, 83-key keyboard (U.S) or 79-key keyboard (UK and Germany) uses the stan-dard QWERTY format. The keyboard provides 12 function keys and 8 cursor control keys,with an Fn key for ROM-based key functions. The numeric keypad is embedded in the stan-dard key layout.NEC VersaGlideThe NEC VersaGlide is a built-in mechanism that functions as the system’s mouse. It con-trols the on-screen pointer (cursor). To use the VersaGlide, glide your finger across theNEC VersaGlide pad, and the cursor follows. The buttons on either side of the NEC Ver-saGlide allow the user to select or deselect menu items. Tap and double-tap are supportedon the VersaGlide pad.The NEC VersaGlide is the system's default pointing device unless a PS/2 mouse is in-stalled. If an external mouse is installed, then the NEC VersaGlide is deactivated. A serialmouse is not supported.SYSTEM MEMORYThe system board provides 8-MB of standard random access memory (RAM).The NECVersa 4000 operates with 4 banks. Banks 0 to 1 are used for the standard 8-MB (with in-terleaved access support). Banks 2 to 4 are used for memory expansion (without interleavedaccess support).Optional memory cards with a value of 4-, 8-, 16-, or 32-MB can be added to increase sys-tem memory up to a maximum of 40-MB. In addition, 256 KB of read-only memory(ROM), 1 x 28F020, enables the system BIOS to be flashed.Cache RAM is available with L1 write-back access support providing 8 KB for code, 8 KBfor data. L2 write-through access support providing 256 KB.