more bosoz problem. when will it end!

[cowanrg]

Originally posted by Nelson Pass
Why don't you measure all the voltage nodes in the circuit
(DC ref to ground) and refer them to that schematic? If
there is a value issue, it will surely show up there.

i measured the ones that the schematic notes. the only two that i see are the drain and source on the 610's. it notes +30v and -4V, im getting +4.7V and -3.4V respectively. so, the -3.4 is close enough, but im not getting anywhere near +30V anywhere on the board.

[jh6you]

Why your +rail voltage is only 34.7V . . . ?


Regards
jH

[cowanrg]

Originally posted by jh6you

Why your +rail voltage is only 34.7V . . . ?


Regards
jH

??

my rail voltage is +-60V like it should be.

[jh6you]

Sure??? You measured it???


Then, what is the resistor value between the +rail and the drain?

Regards
jH

[cowanrg]

Originally posted by jh6you

Sure??? You measured it???


Then, what is the resistor value between the +rail and the drain?

Regards
jH

i found my problem. thanks jh6you.

i had misread the schematic. for R16 and R17, i was using 22.1K resistors. they should have just been 22.1. In my schematic from kristijan, its labeled as 22,1, which i somehow interpreted as 22.1K. BIG mistake. ill replace those resistors tonight and see how it all measures up. thanks again everyone.

i think i might just stick to putting cases together.

[Nelson Pass]

Originally posted by cowanrg
i think i might just stick to putting cases together.

Don't be a crybaby You have just completed the hero's
journey and now you must celebrate your triumph.

[cowanrg]

Nelson,

i havent completed it yet, dont get ahead of yourself now... ive still got a lot of work to do. its not yet "perfect". i have a list of 10 things left to do on it.

but, i did replace those resistors and it measures fine. i was too tired to put it all back together and test it out, but im sure it will be fine now.

a question though, why did it work? and why did one channel seemingly work very well. i mean, i tested it on some very nice and pricey speakers (the two dont always go together) and it sounded great from the one channel... and it was only getting 4v on the rails.