Smartfade ML internal memory dead

In the manual it mentions the battery ONCE. There's no mention of it in the service manual. Is there one? Is it user replaceable? I have two boards and one restarts with no active memory and the screen contrast at zero. Any advice is welcome, before I set to opening the board.

  • how did you go with this? It looks like i have a client desk that does the same thing. Every time they turn the unit off then on they have to go inot the menu to reset the ind settings.....can only think its an internal battery issue too

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