Help 1 Operation of the DRBII For Diagnostic Testing: Overview

This HELP contains the following information and instructions:
- How to Use the DRBII Keys
- How to Reach the Speed Control Menu or Charging Menu
- How to Read or Erase Fault Messages with the DRBII
- How to Select a DRBII Test Function
- How to Use the DRBII Volt/Ohmmeter
- How to Use the DRBII Menu

If there is a problem with the operation of the DRBII, the screen will display a blank screen, or any of the following error messages:

NO RESPONSE
RAM TEST FAILURE
CARTRIDGE ERROR
KEYPAD TEST FAILURE
HIGH BATTERY
LOW BATTERY
BAD OF CODE
BAD FRAMING
COMMAND REJECTED

If this happens, refer to Information Bus for diagnosis and repair procedures.

NOTE: Problems with the operation of the DRBII must be corrected before proceeding with fault diagnosis testing.