Reusing Existing Power Supply

[Surtsey]

I'm trying salvage a Samsung Bluetooth sub that will only work with its original (now defunct) soundbar. The amp in the sub required 35w.

I want to re-use the exist power supply board Samsung (AH94-02389A)

The board offers 9 connections.

12v​

GND​

P-CN​

3.3v
GND​

PVDD​

PVDD​

GND
GND

The replacement amp requires a single 12-20v. Do I use PVDD? I'd like to know what P-CN means. And finally, as the PSU seems more sophisticated than its new counterpart am I required to bridge to terminals to turn the power on?​

 

[Galu]

It appears that PVDD stands for Power Vdd and that this is the pin you can draw most current from.

PVDD: a supply feeding the class D push-pull stage; thus actually providing the power to drive the speakers. Typically ranging within 3.3 ~ 40V.