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)

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Component Tests and General Diagnostics

Diagnostic Chart:

TEST DESCRIPTION
The number below refers to the step number on the diagnostic table.
2. If any but not all of the buttons are inoperative the transmitter is malfunctioning and must be replaced. If all of the buttons are inoperative, the transmitter battery may need to be replaced.
4. If any or all of the buttons are inoperative after battery replacement, the transmitter is malfunctioning and must be replaced.