No display when turned on or front speaker light Just an amber charging light Is it not supposed to power up until the charging light changes to another color?
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Thanks for clarifying.
Can you open the unit and post some clear photos of the PCB?.
Have you got a multimeter as voltages will need to be measured?.
Martin
I am sorry, the pictures are too blurred. Can you take CLEAR close photos please.
The screws look rusty, has the speaker got wet?.
Can you check the battery voltage.
Disconnect the battery and leave disconnected while we check the unit.
Martin