Question about Roland Mv8800 Production Studio

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Need assistance in getting details of part number for power mixer

I need the power amp IC # for my Roland CPM 120 MKII.
Appreciate highly if someone can assist me.
Thanks a million.
Ravi

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  • Roland Master
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This is just a guess and the purpose is for you to get the datasheet and compare connections and see if they make sense... I have to do this often myself when documentation is unavailable.

Look up the datasheet for LM3886 on google and compare the package, electrical connections, etc. to see if that might be what is used.

MANY audio amps at this power level use this chip for the 50 to 68 watt range. They cost about $4 from the right sources.

If this is not what is used, the amp is probably in the TDA series of 5 and 7 pin TO220 style packages.

Other methods for these amps may involve class D switching amps and those usually use MOSFET transistors, not IC's.

Posted on May 06, 2010

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1 Answer

Need assistance in getting details of part number for power mixer


I tried to post a possible solution and it may have not made it so I will try again.

Download the data sheet for an LM3886.

This chip is used in a lot of linear audio amps in the 50 Watt range.

Download the data sheet and then check if connections on your unit make sense.

Smaller units sometimes use the TDA2050 7 lead TO220 style chip so look at that one in the LM3886 isn't the one.

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