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NFJ TA2024 Amplifier Kit Semifinished Product - Part 7

2015-01-03 12:25  
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TA2024 kit has just touched, I want the last remodel soon.

NFJ TA2024  Amplifier Kit Semifinished Product

(From theTA2024data sheet)
+5 V GENofTA2024isin1pin,each ofwhichis connectedto4pin, 9pin.I would like toimprove thevolume of thebassis a weakness ofTA20204by supplyingto4pin, 9pinto+5 Vexternal powerwith7805floatedthe1pinthere.

NFJ TA2024  Amplifier Kit Semifinished Product

Iput abypass capacitorandelectrolytic capacitor100u0.1uandmake7805another boardcut theuniversal board.

NFJ TA2024  Amplifier Kit Semifinished Product

Ifloated the1pinofTA2024.Carefullyso as not tointerfere with thenextleg.

NFJ TA2024  Amplifier Kit Semifinished Product

The left lineis the+12 Vline,lineon the rightis thesupply line+5 V.After passing through thelandtoFB, +12 V+5 Vlinesupply lineissoldered to theleftof, C17toC16decoupling capacitors1pinofTA2024was originallyconnected.

NFJ TA2024  Amplifier Kit Semifinished Product

+5 Vsubstratewas fixedto the side.
As a result ofthesoundoutimmediately,external+5 Vsupply, as was theeffectisstillquitetightbassthatIbegan tocome out.Ifeelthe overallsound of thesoundnot justbassalsoseems to have becomebetter.Pretty goodsoundcomes outevenwith effortTA2024.Iwant to waittoenjoy thenewkitTA2024NFJ, which will bereleasedeventually.