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Author Topic: low output : solved  (Read 7947 times)

martindunne

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low output : solved
« on: September 08, 2014, 02:59:41 PM »
hi there just put another preen together today and have a low noisy output? which components and areas of the pcb should i check first.
thanks
« Last Edit: September 08, 2014, 07:28:05 PM by martindunne »
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Xavier

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Re: low output
« Reply #1 on: September 08, 2014, 04:39:23 PM »

Hi Martin,

Check that your op amp is well placed, and that its ground and 5V pins actually shows 0V and 5V.

Then all the resistor values around the op amp.
http://ixox.fr/preenfm2/the-pcb-r5/pfm2_17/#main

Xavier
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martindunne

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Re: low output
« Reply #2 on: September 08, 2014, 05:13:05 PM »
have got near enough 0v on pin 1 and 5v on pin 8, cheers. are there any schematics so i can test continuity.
« Last Edit: September 08, 2014, 06:00:52 PM by martindunne »
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martindunne

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Re: low output
« Reply #3 on: September 08, 2014, 07:27:47 PM »
solved!  my fault used wrong op amp only 1 channel
TLV2451CP
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Xavier

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Re: low output : solved
« Reply #4 on: September 08, 2014, 10:15:01 PM »

Cool...
Thanks for the update...
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