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Hahaha... :lolsign:
Slightly off-topic but it reminds me of a wee joke...
A chav Scottish couple called Bobby and Betty are trying to mix it with the posh set are at a dinner party. The champagne's flowing and everything's going well. The hostess spotting that they're without nibbles passes them a tray of canapés and asks Betty in a snooty voice: "Cheesy dip?" to which Betty replies: "Naw, hen, he washed his cock this morning..."
:eyebrows:
Right, back to DACs...
Marco.
Thats put me off Dairylea dunkers forever!
Nowt wrong with these odd off topic posts, it adds a bit of flavour to the discussion even if it does involve a bit of cheese :lol:
Ground is ok, no shorts , only short to the 5 V , 20 M ohm to the Ground = evrything ok
I RESOLDERED every power connections :)
Good news the cirrus dac show a healthy** weird**1.7 V AC+DC , with some weird 0.4 V DCat output.... i think i am going to try it directly on my buffer ( bottle head foreplay ) then to the integrated tube amp...
...hope nothing blow up
It mesured around 0.1 V DC without any music playing at the output of the buffer same with music playing... ok...i hope... should be ok ... if you have a bottle head pre, never turn it down first it gives 20 V DC... you hear my speaker cry when i did that sometimes... they need mostly only 5 V to play at peak level!
result : just noise, ground problem, sound like a rca socket with defective ground, leo i anticipate your next post, change the kit sockets, lol ill try to tight them very hard and it should work :mental: , but i think even then it's not going to work . Anyone has a good dac to recommend me ?
Not a great thought! Back on DACS I am interested on your thoughts as regard the PSU. How good/bad is the supply supply versus a decent diy job?Quote:
Originally Posted by leo
Iain
My dac looks worst and worst , before i rip evrything apart ill try to revert all the modifications...
I never had the standard psu so can't comment on its quality, it certainly helps to use the best you can though, something with low impedance low noise is what I use for both analogue and digital regulationQuote:
Originally Posted by iihay
Theres plenty of cheap diy designs about, its easy to go mad but obviously seems to defeat the object of this cheap diy project.
Could use something like a cap multiplier supplying a shunt set for 5v for the dac.
Adding a current regulator diode from the op-amps output to the supply pin with worst PSRR can add a nice improvement on the cheap, if you can't find a suitable CRD its easy to make one using a Jfet with a resistor through it to set the current, also add a resistor before the CRD to help with the capacitance
I think its just been a bit of bad luck you've had, it makes sense removing the mods to see if the fault can be isolatedQuote:
Originally Posted by gabdx
I think it's completely out of usage , the cs itself seems dead, maybe i did a short some capacitor and it burned something inside... I tried evrything i could and nothing works.
If the CS8416 receiver or the CS4397 dac chip has gone theres the option of replacing the chip if your confident
http://uk.farnell.com/1023396/semico...questid=484498
http://uk.farnell.com/1023451/semico...gic-cs8416-csz
Got to be cheaper in real terms to buy another board.