W A R N I N G
C A U T I O N
Preparing for Use
To install the HP 16500L interface module
To install the HP 16500L interface module
The HP 16500L interface module is required to connect the HP 16501A Expansion Frame to the HP 16500B mainframe.
Hazardous voltages exist on the power supply, the CRT, and the CRT driver board of the
HP 16500B mainframe. To avoid electrical shock, disconnect the power from the instrument before performing the following procedures. After disconnecting the power, wait at least six minutes for the capacitors on the power supply board and the CRT driver board to discharge before servicing the instrument. However, if the AC LED on the power supply has any illumination, a significant charge remains on the power supply capacitors.
Electrostatic discharge can damage electronic components. Use grounded wriststraps and mats when performing any service to this module or to the HP 16500B Logic Analysis System.
For correct orientation of the cables, match the slots on the cable connectors and on the board connectors.
1Remove power from the HP 16500B mainframe, then remove the optional modules, the four rear feet, and the top and bottom covers of the mainframe.
2Remove the sheetmetal plate on the rear of the mainframe covering the slot where the HP 16500L interface module will be installed.
With the interface module installed, you will not use the plate. Save the plate to use in case the interface module is removed.
3Remove the cable connecting the CRT module to the CPU board.
To release the cable, push the tabs on the board connector to the outside of the connector.
With the interface module installed, you will not use this cable. Save the cable to use in case the interface module is removed.
If you need more room to replace the CRT cable, you can remove the hard disk drive. Removing the hard disk is not necessary, but gives you more room for replacing the CRT cable. The hard disk is connected with four screws.
4Connect one end of the new 40-pin cable to the CRT module.
Push the cable connector into the board connector until the tabs lock in the cable. If you removed the hard disk drive, replace it before going to the next step.
