ARINC-429 Adapter drawing# 53620WD Rev 6 has an error. It shows under the GNS-430:
(MAIN RS232 CONFIG)
CHNL 1: OFF | AVIATION

It should read
CHNL 1: ARNAV/ei-Fuel | AVIATION

The text in the manual and our ARINC Troubleshooting Guide are correct.