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48% OFF 0-30V 2mA - 3A Verstelbare DC Geregelde Voeding Module DIY Kit US$4.99 US$9.59 View It

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PaulS 05/06/2015

As noted above, the values of the components are shown on the PC board. This means once a component is installed, you can no longer see the value it is supposed to be. I assembled mine in about two hours, observed the polarity of the components and connected it to a 24Vac supply. Nothing happened. The LED did not light, and the output measures only 0.63 vdc. As these is no paper documentation, I have no idea of how to trouble-shoot this item. The only items one can disconnect are the pots and to check the voltage at the fan connector. Pots are correct and the fan output is correct. None of the rectifiers are warm, and the LED does not light. Does anyone have any good ideas? Any help will be appreciated. As noted by others, a 115/24v 3A transformer required to power this item is rather expensive - Beware!! As of this writing, this project is not good. Can NOT recommend it!!

Reacties (9)

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Banggood Dear customer,Can you send videos to us? so that we can solve your problem.Best regards
24/05/2024

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cassiopeia i have the same Problem. u2 very hot, Output 0.34V
Beantwoorden 09/06/2015

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cassiopeia it works, Q1 was defective
Beantwoorden 11/06/2015

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ppotocnj Mine work perfectly it take me 20 minutes to assembly. Wery nice product.
Beantwoorden 15/06/2015

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tonyjobson I have the same problem. IC near the trim pot gets very hot. only arround 0.5 volts on the output.does not work.
Beantwoorden 03/10/2015

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banggood @tonyjobson Hi ,
Sorry to hear that.
Would you please contact our customer service cservice@banggood.com?
Please send us your order number and a video or some pictures to show your problem.
Beantwoorden 05/10/2015

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ricardomagagnin Same problem, when I removed the Q1 the output goes to 15V. I really do not know how to solve it.
Beantwoorden 29/10/2016

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Halmar I got 0.4VDC on output when I hooked mine up for testing the first time on a DC source. You have to use an AC transformer because there is a charge pump circuit to generate negative voltage for the Op-Amps.
Beantwoorden 06/01/2017

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banggood @ZenElektronika Dear customer,
Thank you for choosing Banggood and sorry for your any inconvenience came up with the product.
If you need any support, you can contact us via this link:http://www.banggood.com/Contact-Us_hi111, and we will give you a good solution.
Best regards :)
Banggood team
Beantwoorden 09/08/2018

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Ons bedrijf

Neem contact met ons op

Betaling & verzending

Partnership-programma

Over Banggood.com garanties en retourbeleid Algemene voorwaarden Privacybeleid Intellectueel eigendom-claims Sitemap

Neem contact met ons op Nieuwe gebruikergids Help Gespecialiseerde Zaken

Betaalmethodes Verzendgids Locaties waarnaar we verzenden Verwachte levertijd BGpay-instructie

Modebloggers-programma Affiliateprogramma Wholesale-programma Dropshipping Review Club