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Behringer ub-spsu2 Power Supply Burnt Chip - Seeking Layout Symbol Identification & Help

KAROL19766 9111 8
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  • #1 18057396
    KAROL19766
    Level 12  
    Hello, I have a question about the layout and I mean the symbol of this layout, it is burnt and cannot be read accurately

    This is a Behringer ub-spsu2 power supply from a Behringer mixer

    Behringer ub-spsu2 Power Supply Burnt Chip - Seeking Layout Symbol Identification & Help
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  • #2 18057420
    HD-VIDEO
    Level 43  
    TOP245
    Link

    but
    KAROL19766 wrote:
    from the mixer

    what
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  • #3 18057440
    KAROL19766
    Level 12  
    BEHRINGER XENYX 1832 FX model miksera
  • #4 18057452
    HD-VIDEO
    Level 43  
    I'm not quite sure which TOP245 or TOP246 was there

    How much power consumption is written on the mixer housing?
  • #5 18057457
    KAROL19766
    Level 12  
    HD-VIDEO wrote:
    I'm not quite sure which TOP245 or TOP246 was there

    How much power consumption is written on the mixer housing?


    100-240v 50/60 Hz 40W
    FUSE T 1.6 AH 250V
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  • #6 18057500
    HD-VIDEO
    Level 43  
    TOP245Y at 99% (and in the photo as if it was TOP250Y), I once repaired the UB-SPSU2 power supply, TOP246Y was there, I don't know why, maybe there are some versions of this power supply.

    There is a capacitor on pin 7 of this system and diodes on the primary winding, it needs to be replaced, if something is not there, this system is failing.

    The rectifier bridge also needs to be checked.
  • #7 18057580
    KAROL19766
    Level 12  
    HD-VIDEO wrote:
    TOP245Y at 99% (and in the photo as if it was TOP250Y), I once repaired the UB-SPSU2 power supply, TOP246Y was there, I don't know why, maybe there are some versions of this power supply.

    There is a capacitor on pin 7 of this system and diodes on the primary winding, it needs to be replaced, if something is not there, this system is failing.

    The rectifier bridge also needs to be checked.


    Many thanks for your help, I'll let you know when I get it / replace it
  • #8 18104318
    KAROL19766
    Level 12  
    After replacing this system, it does not start !!! One red led is lit at + 48V on the mixer panel, I did not mention anything else, you write about additional exchanges, I am not too much of a specialist in electronics, and exactly what elements do I want to replace?
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  • #9 18104370
    HD-VIDEO
    Level 43  
    The power supply has started, check its output voltage + 5V, + 12V, ? 15V, + 48V
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Topic summary

The discussion revolves around a burnt chip in the Behringer ub-spsu2 power supply used in a Behringer mixer. The user seeks help identifying the layout symbol of the burnt component. Responses suggest that the burnt chip is likely a TOP245 or TOP246, with some uncertainty about the specific model. The user provides power consumption details of the mixer (100-240V, 50/60 Hz, 40W) and a fuse rating (T 1.6 AH 250V). Further advice includes checking the rectifier bridge and replacing a capacitor on pin 7 of the system. After replacing the chip, the user reports that the power supply does not start, with only a red LED lit for +48V. Additional guidance is provided to check the output voltages of +5V, +12V, and +15V.
Summary generated by the language model.
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