NEC IMAGE P100E Service Manual

Also see for IMAGE P100E - SERVICE: Manual

Contents

1-28 Technical InformationIndicator PanelThe indicator panel is attached to the front panel and contains the power lamp, hard diskdrive busy lamp, and reset button. The indicator panel attaches to the system board usingconnector J4 (reset connector), J12 (power lamp connector), and J11 (hard disk drive busylamp connector).Power SupplyThe power supply is mounted inside the system unit. It supplies power to the system board(+5V, +12V, and -12V), and storage devices. In turn, the system board supplies power tothe keyboard, mouse, and any installed expansion boards. (-5V is provided to EISA adapterboards, but this voltage is not used by the system board.) Three connectors connect thepower supply to the system board (connectors J17, J21, and J31). There are also connectorsavailable for the six possible storage devices.A fan inside the power supply (at connectors J6 and J7) provides proper ventilation for thesystem. The power supply provides 260W of power. Power requirements and specificationsfor the power supply are provided in Appendix A, Specifications.Diskette DriveThe computer supports up to two diskette drives. Image P90E and Image P100E systemsship with one standard diskette drive that connects to the system board by means of asingle-connector ribbon cable. To install a second, optional diskette drive, a single ribboncable with two drive connectors must be installed in place of the single-connector cable.The dual-connector cable option is available from NEC (see Section 4). The system refersto the diskette drives as A and B. Drive A is for the first drive, B is for the second optionaldiskette drive. Typically, both diskette drives are terminated. See Section 3, Options, forinstructions on installing an optional 5 1/4-inch diskette drive (or 3 1/2-inch diskette drivein a 5 1/4-inch form factor). Specifications for the diskette drives are provided in AppendixA, Specifications.Hard Disk DriveThe system provides two fast PCI-bus IDE interface connectors on the system board. Thesystem board supports one or two devices on each IDE connector. The system alsoprovides one SCSI connector supporting up to five internal and 7 external devices (harddisk drives, tape back-up drives, and CD ROM readers) using the PCI local bus FastSCSI-2 host adapter.The system unit provides two internal storage slots (one 1-inch height and one 1.6-inchheight) for 3 1/2-inch hard disk drives. When configurations are shipped with a hard diskdrive, one of these slots is occupied. Three accessible 5 1/4-inch device (1.6-inch height)storage slots also available for optional devices. See Section 3, Options, for installing anoptional hard disk drive. Specifications for the hard drives are provided in Appendix A,Specifications.