9845B/C Environmental. Installation. and Preventive Maintenance Requirements 2·15 Inserting and Removing the Tape Cartridge Insert the tape cartridge so that its label is up and the open edge is toward the computer, as shown below. Both the drive window and the door beneath it open when a cartridge presses on ihe iower door. The cartridge can then be inserted. I To remove the tape cartridge. press the eject bar. If it is pulled out without pressing the eject bar. another catridge cannot be inserted until the eject bar is pressed. Do not remove the tape or execute reset while it is moving; damage to the tape may result.
9845B/C Mainframe Verification 9845B/C System Exerciser The programs on the System Exerciser Cartridges (HP PIN 09845-92041 Revision C and 09845-92042 Revision A) are designed to assure you that the System 45 is operating properly, and if it is not, to identify problem areas which may exist.Some exercisers require that you compare what is displayed or printed to what is described in this manual. All of the exercisers display error messages when errors are detected. If any exerciser should fail, please note the error and refer to Section 4, Troubleshooting. The exercisers are divided into three types: internal mainframe. peripheral, and interface.
The internal mainframe exercisers should be run first to exercise the System 45 mainframe thor- oughly before running any of the external peripheral or interface exercisers. Refer to the appropriate chapter of this handbook for interface and peripheral exercisers. 9845B/C Turn-On Self Test When the 9845 is turned on, a self test occurs. The processors go through a test routine, if successful, the 9845 will beep at least once. The numbers of beeps isn't important. The proces- sors also check to see the type of CRT they'll send display data to, and determine which processor is PPU/LPU.
A CRT must be attached for this processor 10 routine to finish, if none is connected, the processors hang up, the 9845 appears dead.