Power source vu duo v2

Discussion in 'VuPlus Duo Hardware troubles and Repair support.' started by malpi, Jan 27, 2018.

  1. malpi

    malpi Member

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    can you tell me the capacitor value of the power supply C15 and C17 I think they are the same thanks
     
  2. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    Original psu,
    C15 = 47uF 50v
    C17 = 470uF 25v

    Clone,
    C15 = 1000uF 16v
    C17 = 470uF 16v
     
  3. malpi

    malpi Member

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    forgiveness is c14 and c15
     
  4. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    C14 = also C15
     
  5. storm_breaker

    storm_breaker New Member

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    Johnny do you have a values for PSU vuduo V2 the follows :
    R05
    R10
    Q01
     
  6. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    I'm not sure what you ask,
    Are you ask it for the duo2? if so, in that case I have at this moment no info about it.
     
  7. storm_breaker

    storm_breaker New Member

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    it is about PSU for vuduo
     

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  8. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    Okay,
    R05 and R10 has code 101 and both are 100 Ω
    Q01 is not used.

    But most important, you have cleaned up a solder bridge to Q1.

    vuduo-psu-d02.jpg
     
  9. storm_breaker

    storm_breaker New Member

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    Originaly the PSU had no bridge there , so i havent cleand anything . My "new" PSU had a bridge there but the trasformers are different ( but have the same Part number).
    I did the bridge my self because i was compare it with the from the box , Then i realise that they are much more different .In this case as i can follow the tracks , there is no use of R10 if there is no Q01 , bacause R10 leads no where .Am I right ? Last i try as on the picture without the R10 i had no voltages on the pins accept the 5V as much as i remember.
     
  10. Johnny B.

    Johnny B. Technical Support Staff Member Moderator

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    R10, yes indeed, when there is no Q01 transistor then has this resistor no use.
    But when this transistor were present, then it goes basically to the same circuit.
    With solder bridge the bridge wire goes to Q1
    Without, it goes trough the transistor to the Co4 cap/zener diode, after the zener diode to Q1

    Nevertheless these type psu's most common part which often blown up is the Q1 and the zener diode.
    So I have on mine 3 time these replaced, and funniest is that I removed this psu from my working vuduo to make this picture, after placing back the psu it (again) blows up with a big bang, Q1 totally has blown up into pieces. :rolleyes:
    So, it's not the best type psu to use.
     
  11. storm_breaker

    storm_breaker New Member

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    indeed agree with you .I bought 5 because i had the feeling that i will need more than one :D.let me try again to see if another one will blow out :D
     
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