Check power supply (+30)

- Check for battery voltage +30 across pin 4 of the radio connector A and earth

- Check for battery voltage +15 across pin 7 of the radio connector A and earth

- Check that the connector is correctly inserted in its other part

- Try to move it from its seat by making small movements in all directions, grasping the connector body in your fingers and the wiring in your hand. The connector must stay in place

- Exercise a moderate pulling force. The connector must stay in place

- Check whether the power supply goes off, on and/or viceversa (touching/not touching)

- Pull the lead and check the stability in the groove (should not move back): exercise repeated pull-push-pull cycles on the cable and check it remains immobile

Examine the crimping:

Use a lens to examine the terminal crimping area. The barrels must be turned symmetrically and no strands should emerge from the crimped area. The bare wire section under the barrels must emerge by 0.5.

- Check the continuity of the +30 connection between Body Computer +30 connection and the radio

See E3510 RADIO

- Restore the +15 power supply

Check the earth

Disconnect amplifier connector A and connect an ohmmeter accross pin 8 and earth and check the resistance is lower than 1 ohm