Beomaster 8000 Versions?

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  • #7676
    Glitch
    BRONZE Member
    • Topics Started 9
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    This is a question for the B&O historians out there…

    I noticed an odd thing on a Beomaster 8000 (Type 1903). The tape RCA inputs/outputs are different between two different receivers. On one receiver they are wired to Tape 1 (like is shown in the service manual), on the other they are wired to Tape 2.

    BM8000_1bBM8000_2b

    Does anyone know why they made this change and when the change was made?

    Thank you,

    Glitch

    #7680
    Dillen
    Moderator
    • Topics Started 2
    • Total Posts 161

    From serial number 2554003 the monitor function was moved from TP1 to TP2.
    This required a change to the slave CPU, the preamplifier and the socket panel.

    Martin

    #7713
    Glitch
    BRONZE Member
    • Topics Started 9
    • Total Posts 83

    Martin,

    Thank you for the information. The list of parts that changed between the two versions is helpful to know in case I ever need to swap boards between the receivers for debugging. I assume that swapping is still possible, but the results might be confusing due to mismatched displays. Hopefully, I’ll never need to try this.

    I was trying to get a rough idea of what year each of my receivers was built. I know that my newer BM8000 was very late in the production cycle since it was purchased in 02/1986. I have very little information about the other one since I bought it used.

    I’ve done a quick search for B&O serial number decoders, but none of the information makes sense for the serial numbers that I have.

    Glitch

    #7715
    Dillen
    Moderator
    • Topics Started 2
    • Total Posts 161

    For the older products, there is no link between serial numbers and production dates.
    Beomaster 8000 was produced 1981-83.

    Martin

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