Wharfedale Movie Star 70+ Schematic Required.

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  • hemant_2222
    Hemant
    • Jul 2015
    • 69
    • India

    #1

    Wharfedale Movie Star 70+ Schematic Required.

    Hello Friends,

    Greetings!

    I have taken this active subwoofer from Wharfedale for restoration. This is already in a bad shape as far as the connections goes. It has already been worked by local technicians. The most important part that I am looking forward is the schematic diagram, as there is jumper placed and a track has been cut, as if to bypass the actual connection. I am not sure if this is by design or someone has tried something to achieve.

    Another thing is the TDA7294 was badly treated with its legs cut and it had a crack too, so I have replaced it already but I have not tested it so far to avoid any further damages but would like to confirm the connections before I plug this unit.

    I have attached few pictures that may give a fair idea of the above and so I am looking for its schematic.

    Could someone please direct me or provide the source where this schematic could be obtained so I could start the restoring.

    Requesting your kind assistance, please.

    Thank you and have a great day!

    Regards,
    Hemant
    Attached Files
  • прямо
    Badcaps Veteran
    • Sep 2022
    • 261
    • Indonesia

    #2
    Refer to the TDA7294 IC datasheet for a Typical Application Circuit schematic.

    It should be very similar to your board because the schematic from the IC datasheet works, therefore very rarely a manufacturer using the IC would went as far as to implement a totally different circuit.

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