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  1. Radio Head Unit - Repair II

    .. continuation of Radio - Repair

    Too little Volume and Distortions increasing with Volume

    Observed on: 1 EUDM Radio
    Fixed by: OP amp replacement
    State: Fully understood

    The audio signal path on these radios is fully analogue with several operational amplifiers at various stages. One of them is IC303, a 20 V, 10 MHz quad operational amplifier from JRC/NJM: NJM2060M.

    Click image for larger version. 

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    IC303 at the rear end of the lower PCB
    ...

    Updated 12-07-2023 at 09:28 PM by Heineken

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    Uncategorized
  2. Cigarette Lighter Socket 05

    by , 18-02-2023 at 01:52 PM (Today at Atelier Kaz - ex-Honda R&D, F1, Indy/CART engineer)








    ...

    Updated 25-02-2023 at 12:39 PM by Kaz-kzukNA1 (extra info)

    Categories
    Electronics
  3. Cigarette Lighter Socket 04

    by , 18-02-2023 at 01:42 PM (Today at Atelier Kaz - ex-Honda R&D, F1, Indy/CART engineer)







    Long time ago, when I got this USB power adaptor, I noticed that the bimetal terminal was pushed away that the cigarette lighter was no longer engaging and just pops back to its normal position.

    ...

    Updated 25-02-2023 at 12:37 PM by Kaz-kzukNA1 (extra info)

    Categories
    Electronics
  4. Cigarette Lighter Socket 03

    by , 18-02-2023 at 01:25 PM (Today at Atelier Kaz - ex-Honda R&D, F1, Indy/CART engineer)
  5. Cigarette Lighter Socket 02

    by , 18-02-2023 at 01:17 PM (Today at Atelier Kaz - ex-Honda R&D, F1, Indy/CART engineer)
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