SB2 - disconnect power to DAC and op-amps

[plim]

Anyone familiar with the SB2 (two) circuit who could tell me how to disconnect the power to:

1) the op-amp and DAC linear regs (14V)
2) the headphone linear reg (3v3)

I've seen info for the SB3 on this forum, but not for the SB2.

Many thanks in advance.

5V`2A`--->`Dual`````--->`3v3`(IO,`wireless,`logic)
````````|``Switcher``--->`1v2`(CPU`core)
````````|
````````|-->`Linear`reg`--->`3v3`(headphone)
````````|
````````|
````````|-->`Switcher`--->`Multiplier`--->`11VAC`VFD`ef
``````````````````````````````|```|
``````````````````````````````|```|
``````````14VDC``````````````|```|----->`55VDC`VFD`vdd2
````````--------RC`filter<----------|````
````````|
````````|
````````|---->`Linear`reg`--->`9vdc`(op-amps)
````````|
````````|---->`Linear`reg`--->`5vdc`(DAC)

[ntom]

Has anyone looked into this...? Must confess at first glance everything is too small -I have no idea what is what...!!

I too would like to have a crack at this. I use SB3 with digital coax to DAC, so disabling all non-essentials eg analogue output stage, headphone stage etc could improve sonics, particularly given that so many seem to get improvement with a better power supply...?