Reply To: Beomaster 7000 Preset Levels Issue

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Confirmed, there is a lithium cell inside the cpu board. It is a CR2450 cell with pins.

Replacement is necessary, otherwise the cell can leak and destroy the board. The brown stuff on the battery is acid… it also can burn (seen in several VX5000…)

After the replacement the cpu needs a reset and a “clear CMOS” service. Without this procedure the offset of the FM counter may be wrong, the frequencies of the stations will be wrong and there will be stations you cannot reprogram or delete, this can also be a timer function… switching on or off, recording things…

For this it is necessary to start in service mode.

You have the service manual?

  • This reply was modified 2 weeks, 6 days ago by Die_Bogener.