Topcon A2677 manual Switched Power Test

X20 Sprayer Reference Manual

Switched Power

Figure 12-2. Switched Power Connector

This input is connected to the power cable via the relevant extensions and Y cable. When the console is powered on a low current, filtered 12 Volt supply is applied to Pin-A to power up the ECU's processors.

Switched Power Test

1.Power the console ON

2.Confirm 12 Volts between Pin-A and Pin-B

WARNING WARNING

It is important to ensure that the polarity is not reversed as damage will result to the ECU.

3.Make certain that the negative (black) probe is in Pin-B and the positive (red) Probe in Pin-A, and that the Multimeter display does NOT show -12V (correct reading is 12 Volts)

WARNING WARNING

Do not use this output for any other application, other than what is described in all TPA literature.

A2677 Rev 1.5 12-3