Component Tests and General Diagnostics

- Switch radio off.
- Press MODE button (Concert radio) or button no.4 (Symphony radio) on radio while turning radio on.

Do not press the MODE button again.

If the cable connection is OK:

The radio display indicates: "CONNECT" and "CD".

If the cable connection is NOT OK:

The radio display indicates: "NO CDC."
- Check electrical connections on CD changer.
- Repeat check as described above.

If not OK:
- Check wiring connections.