I have been searching the interwebs with no luck!
Can someone help me with sourcing a transformer for the Soundcraft Spirit M8 mixer.
I attached the schematics for the PSU, unfortunatly there is not much info on the transformer, or i'm reading it wrong
I know the original is torroidal
Aparently the tranformer has 3 secondary windings:
One for the main mixer rails with center tap -17V - 0 - +17V
One for the phantom power 0 - 48V
One for the spdif output 0 - 5V
Thanks for any help!
Can someone help me with sourcing a transformer for the Soundcraft Spirit M8 mixer.
I attached the schematics for the PSU, unfortunatly there is not much info on the transformer, or i'm reading it wrong
I know the original is torroidal
Aparently the tranformer has 3 secondary windings:
One for the main mixer rails with center tap -17V - 0 - +17V
One for the phantom power 0 - 48V
One for the spdif output 0 - 5V
Thanks for any help!
have you tried contacting Soundcraft? the spirit series is not that old.
there had to be a really severe problem like improper mains voltage to kill one of those, and that depends on which part of the world it came from.
there had to be a really severe problem like improper mains voltage to kill one of those, and that depends on which part of the world it came from.
is it a separate "wall wart" style transformer? or is it internal? it's hard to find any info on that.
it might be a kludge but depending on internal space you may have to find 3 separate transformers to power the different voltage rails.
with no spec's estimating current ratings gets silly fast. short of a variable supply with a current monitor to get an better idea of current draw i don't know what to suggest.
it might be a kludge but depending on internal space you may have to find 3 separate transformers to power the different voltage rails.
with no spec's estimating current ratings gets silly fast. short of a variable supply with a current monitor to get an better idea of current draw i don't know what to suggest.
No, it’s internal!
Power is 50W as stated in the back of the unit!
Phantom power is 10mA max per channel! So 80mA x 48V = 3.84W MAX for phantom
I’ll try to measure the 5V for the spdif section and also the symmetric section
Power is 50W as stated in the back of the unit!
Phantom power is 10mA max per channel! So 80mA x 48V = 3.84W MAX for phantom
I’ll try to measure the 5V for the spdif section and also the symmetric section
just how big of foot print does the x-former occupy?
what is wrong with the original x-former, open primary?
everything ok with the fuse holder and fuse?
power switch?
sorry if i'm mentioning things you may have verified already.
you have a copy of the schematic, no clues there?
what is wrong with the original x-former, open primary?
everything ok with the fuse holder and fuse?
power switch?
sorry if i'm mentioning things you may have verified already.
you have a copy of the schematic, no clues there?
Schematic is attached to the initial post. I find no usefull info there.
I don't have the original transformer, I was gifted the Mixer without it, but the psu works.
I was able to test it with another transformer that only has one secondary. It´s toroidal and fits the unit maybe i could wind the two missing secondaries.
I found this video on youtube that shows the offending transformer briefly. I tried contacting the author of the video but no reply
I don't have the original transformer, I was gifted the Mixer without it, but the psu works.
I was able to test it with another transformer that only has one secondary. It´s toroidal and fits the unit maybe i could wind the two missing secondaries.
I found this video on youtube that shows the offending transformer briefly. I tried contacting the author of the video but no reply
that's not the complete schematic for this mixer just the PSU and SPDIF section.
if your "test" transformer powered the 17 volt rails your almost home free.
both the phantom and SPDIF are limited/special application functions that you may not need depending on how you plan to use this mixer.
if your "test" transformer powered the 17 volt rails your almost home free.
both the phantom and SPDIF are limited/special application functions that you may not need depending on how you plan to use this mixer.
Attached is schematic for the mixer, but I think it has no usefull info
SPDIF i can live without but PHANTOM is important for DI boxes an condenser mic's
SPDIF i can live without but PHANTOM is important for DI boxes an condenser mic's