I have built up the single placid and it gives 3.30V . ,
i hooked it up to Buffalo 11 and the reading on the Buffalo with the AVCC installed is 1.76 V and won't budge from that reading , the lights on the dacs AVCC and the led's on the dac don't light up , should they light up on the dac and the AVCC ?
I'm missing something somewhere , any feedback would be welcome . thank you .

Thanks Leon for the input

i have pushed the placid to dish out 5.5 and the Dac still remains at 1.76 volts , weird ....
regards

i have assembled Legato and left out the buffer components for now ,
expecting to see the Placid BP and corresponding transformers to arrive soon .

My single Placid is powering 4.60V to the Buffalo II Dac , i could power her at 5.5 but you see... the placid is really hot , i mean hot ....you stick a probe on that QP1 and then stick it up a horses ... and he's in the winner's circle in no time , but ...but this transistor in the QP1 will not last long as a regulator due to the high heat ,it get's hotter by the day ,this is not in the 60/70 degree range this is more close to 90 degrees easy , the QN1 is very cold in comparison one would think it was not working . ,

i built the Placid per manual specs but my knowledge of electronics does not permit me to take this any further ,

i don't know where to look to bring down the temperature of that transistor , my knowledge of electronics is very limited , could it be that i am outputting loads of current and no voltage ?... to trouble shoot this problem can someone help

regards

i can't remember where i got the 1.76 volts , i did so many senarios trying to sync this thing it's unreal .

So here i am restarting the process by going from the manual and putting the VR2 at 100ohms and VR1 at 10 ohms . this now gives me a output reading of 4.66 volts , upon hooking to the DAC the reading goes down to 4.16 volts , although she plays at this voltage the module FJPF1 1943 will still get hotter and hotter .

I think the reading of 1.76 volt was done when i did per manual up to the point where it says adjust the R8 to give out 035 volts readjusted to 5.5 and hooked the dac up and did not play and took the reading on the output of the placid and that is where i got 1.76 volts so readjusted the trimmers till i heard music .....there comes a point where i don't know anything anymore , time for coffee i guess .

regards.

i have been down that road so many times , but will do it again .

the 1st part went well as usual
the 2nd part went well as usual
the 3th part i adjusted the the output terminals to 5.5V
the 4th part i adjusted the voltage across R8 is 0.35
the 5th part i hook up the DAC and check output voltage , it is now at 1.7289 .
So there you go that's where i get my 1.72V reading as i mentioned in my earlier post .

So i investigated further and fiddled with my trimpots and noticed that if i turned
the VR2 i get no reaction from the trimpot , so i went on to try the VR1 and things start to
happen i dial her up to 4.30V , actually she starts to play at 4.V , to keep heat down on QP1 i only
drive it to 4.30V for safe measure

regards

of course i will add pic of temporary setup

Brian's right, it's either of those. I'm a bit puzzled by several things you state:
a. You don't have a Placid BP or transformers yet. You do have a Legato. You do have the DAC working/playing, but what's your setup?
b. You adjust the output to 5.5V but turning VR2 does nothing. That sort of contradicts each other.

First step would be testing VR2. Does the resistance change when you turn the knob? If not, you need to replace it.
Next I would resolder the joints on the Placid. Or have you done that already?

my mistake VR2 to 10ohms

I will pay special attention if my intentions ever come to try single ended ., wouldn't want to damage my fullrangers .

thanks Russ

regards .

Thanks for noticing and pointing it out .
I may have corrected the situation today by taking my ground wires from the GND output of the DAC and reinserted them in the (-) of the outputs of the DAC ,
sound improvement was immediate and balanced , the (+)and (GND) is for (SE) , The (+) and (-) indicators is for balanced output .

Regards .