ISC/TAPE DRIVE ASSEMBLY

TM 11-6625-3081-23 1-10. DESCRIPTION OF ELECTRONIC STATION (cont) 1-10 k. DELETED k.1. DISC/TAPE DRIVE ASSEMBLY 1A1O (1) Disc/tape drive assembly 1A1O (Hewlett Packard HP 7914R) consists of a chassis assembly, disc drive assembly, and tape drive assembly. Primary purpose of the disc/tape drive assembly is to store the computer operating system software program. (2) The chassis assembly provides the mounting support for the tape drive, disc drive, CCA card cage, power supply, and fan assembly. Located on the rear is a power on switch, HP-IB disc address switch, HP-IB tape address switch, two HP-IB connectors, a power input receptacle and in-line fuse. (3) The disc drive is located towards the rear of the chassis and accessed through the top of the disc/tape drive assembly. The disc can store 132.1 megabytes of information. Located on top of the disc drive are two locks; (1) spindle lock and (2) actuator lock. These locks must be in the OPERATE position to use the disc drive. During transportation or shipment, these locks must be set to the SHIP position to prevent damage to the disc and drive assembly. (4) The tape drive is located at the front of the disc/tape drive assembly. Information can be loaded onto the disc through the tape drive. A DC600 type tape cartridge is used with this unit. Tape drive control and indicators are located on the front panel. They consist of an eject lever, UNLOAD switch, BUSY indicator, PROTECT indicator, restore switch, and save switch. Refer to controls and indicators for a functional description of these controls and indicators. (5) An air filter is located behind the front cover. Air is drawn into the unit from the front and exhausted through the rear. The front panel is removed by pulling it forward. (6) Physical Characteristics: Length: 27.8 in Width: 17.75 in Height: 12.25 in Weight: 148 lb (7) Power requirements: 120 vac +5%, -10%, 48 to 66 Hz 700 watts maximum power required. Change 6 1-25