Amp 6 and SMPS

[jwb009]

Not knowing too much about electronics, I want to make sure I have everything correct before testing my amp6. I'm going to use a 12v smps and want to make sure I left the right components off the amp6 board. They are as follows:

R100 Voltage regulator set Resistor
R101 same
R102 same
Q3 LM1084 Voltage Regulator
CMP15 PS rectifier
C99 Bulk Capacitor
C102 Voltage Regulator decoupling

Am I correct in leaving those off? Any help is appreciated

 

[jwb009]

Anyone? I'm really just not sure what to do. I'm guessing I can install the big cap, but i'm not sure about the resistors, or the rectifier?

 

[BWRX]

I don't have an amp6 but those sound like the components needed to make a standard regulator circuit.

 

[jwb009]

hmm, excuse the ignorance, but would that be a yea or nay for installing them?

 

[BWRX]

Don't install them if you're going to use a 12-14V SMPS as the power supply. If you want to use a higher voltage (greater than about 17V depending on the dropout voltage of the onboard linear regulator) SMPS or any other higher voltage DC supply you can install all the parts but the rectifier and use the onboard regulator to regulate the higher voltage down to 14V.

 

[jwb009]

thanks!

 

[Pano]

Leave C99 on, it will help. You may have to put a jumper or 2 in place. I'll check on that.

**** Yes, you'll need at least one jumper. Since you do not have the volatge regulator, you'll need a jumper in its place. Put a jumper between the 2 legs that are nearest the end of the board where the power comes in.
You will see that the hole nearest the power end of the PCB goes to + on C99. You want that one and the middle hole.

You can bring power onto the board via the "GND" connection and the + terminal of C99. Be SURE to check and double, triple check you polarity. If you get it wrong, you'll fry the chip.

Let us know how it goes.

 

[jwb009]

awesome, you guys rock. The amp is singin!