Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

O/D Main Switch

Connector ID:

- Check that continuity is present between terminals 1 and 3 when the switch is in the OFF position.
- Continuity should not be present in the ON position.
- Replace switch if it fails to provide the desired results.