DRBIII Does Not Power Up

DRB III DOES NOT POWER UP (BLANK SCREEN)
If the LED's do not light or no sound is emitted at start up, check for loose cable connections or a bad cable. Check the vehicle battery voltage (data link 16-way connector cavity 16). A minimum of 11 volts is required to adequately power the DRB III. Also check for a good ground at the DLC.

If all connections are proper between the DRB III and the vehicle or other devices, and the vehicle battery is Filly charged, an inoperative DRB III may be the result of faulty cable or vehicle wiring.





DISPLAY IS NOT VISIBLE
Low temperatures will affect the visibility of the display. Adjust the contrast to compensate for this condition.