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Old 5th February 2013, 01:46 AM   #1
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Default Chip amp hookup

I have a couple of STK4044 modules. I am about to attempt firing them up. The PCB has labels -VDC, +VDC, Gnd, Gnd, Gnd, +sig, +sig, HP, HP.
I am assuming, that sig+ is the input for each respective channel and HP is the output power from the module. Are all 3 grounds shared in a chip amp like this? Can I feed these modules with a preamp? I have a transformer, rectifier, 6800uF 56Volt capacitors and 500ohm resistors to power these up. Is there anything else I need?
The picture is not very large but may be readable.
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Old 6th February 2013, 06:31 PM   #2
Mooly is offline Mooly  United Kingdom
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Just a minute.... not very large How big did you want it.

I think you need to do some checks before firing it up. The speaker output will go to the coils (+S I would have said, just from you asking and me looking) so thats total uncertainty. Have a measure and refer to the data shhet for the IC to check the inputs, but once the speaker out is determined the other has to be input by default.
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Old 6th February 2013, 06:37 PM   #3
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My scan didn't work out so well. I was hoping it would be more legible. I will take some time and study the datasheet.
Thanks
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Old 6th February 2013, 06:43 PM   #4
Mooly is offline Mooly  United Kingdom
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I got caught attaching that picture... the site went slow... if you can't see it refresh the page

Your picture is massive
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Old 6th February 2013, 08:09 PM   #5
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Why not check here?

Complete datasheet. STK4044 pdf, STK4044 description, STK4044 datasheets, STK4044 view ::: ALLDATASHEET :::

Looks like pin 3 is the only ground to be connected.
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