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Hypex Ncore 2x250W Stereo amplifier
Hypex Ncore 2x250W Stereo amplifier
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Old 30th January 2018, 07:40 AM   #11
UltraFidelity is offline UltraFidelity  United States
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Location: NJ
Quote:
Originally Posted by meb46 View Post
Great project... one question, how did you wire up the LED and power supply enable circuit. I have a NC502MP and havenít quite figured out the wording to actually wire in a switch and LED yet. Any help would be appreciated!

Thanks
You will need to use a voltage divider and latching switch. 2 10k resistors will do the trick for the pos power...the switch then is connected to the amp enable and the 5v rail to put it in and take it out of standby...I can show you how with pics and point out the pins if you like.
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Old 30th January 2018, 08:41 AM   #12
Leeuwarden is offline Leeuwarden  Netherlands
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Quote:
Originally Posted by meb46 View Post
Great project... one question, how did you wire up the LED and power supply enable circuit. I have a NC502MP and havenít quite figured out the wording to actually wire in a switch and LED yet. Any help would be appreciated!

Thanks

Look at page 12 from the datasheet, 6.2 H Bus connector. Switch between J6.3 and J6.9. A led can be fed by J6.1 and J6.4.
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Old 30th January 2018, 09:25 AM   #13
Leeuwarden is offline Leeuwarden  Netherlands
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Forgot to mention you might need a resistor to make the led shine less bright.
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Old 30th January 2018, 10:17 AM   #14
raelman is offline raelman  Spain
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The easiest way:

LED:
J6.1 is +12 V (in fact, about 15V)
J6.4 Led GND

POWER ON:
Bridge J6.3 to J6.9

Attached you will find a picture

Click the image to open in full size.
imagenes x gratis[/QUOTE]
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Old 30th January 2018, 11:26 AM   #15
Leeuwarden is offline Leeuwarden  Netherlands
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As far as I know it is wise to use a switch between J6.3 and J6.9 because part of the power supply stay's under power. I was told this increases the lifespan of the power supply.
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Old 30th January 2018, 11:30 AM   #16
raelman is offline raelman  Spain
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I use a switch in the main power. So no power looses
Obviously you can place a switch between J6.3 and J6.9 but then the PS will be in standby mode.
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Old 30th January 2018, 11:34 AM   #17
Leeuwarden is offline Leeuwarden  Netherlands
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That's right. And putting the power supply in stand by is healthier for the amp. At least, that is what I was told. But of course everybody can make their own decision what method to use.
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Old 17th January 2019, 04:28 PM   #18
smallangryboy is offline smallangryboy  United Kingdom
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Can I ask where you got the connector kit for the NC252MP? Specifically the molex connectors for the signal in and speaker output?

Cheers
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Old 17th January 2019, 04:31 PM   #19
Leeuwarden is offline Leeuwarden  Netherlands
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Originally Posted by smallangryboy View Post
Can I ask where you got the connector kit for the NC252MP? Specifically the molex connectors for the signal in and speaker output?

Cheers
Hypex.
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Old 17th January 2019, 04:43 PM   #20
raelman is offline raelman  Spain
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Digikey sells the JST connectors.
If you download the specs sheet for the amp you will see JST reference for the onboard connector.
With the reference you can seek at digikey and at the bottom of the page the male conmector as well as pinouts will appear
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