SC PROPHET 600

[yannluaudio]

Hi,

I have here an old Prophet 600 to repair.
Everything is OK except than it seems that the 6th voice is not filtered.
Actually when I play key after key also, not only with several notes at the same time.

Is it a known issue ?

Please help.

Thank you !

Yann

[DavidDever]

Hi,

I have here an old Prophet 600 to repair.
Everything is OK except than it seems that the 6th voice is not filtered.
Actually when I play key after key also, not only with several notes at the same time.

Is it a known issue ?

Please help.

Thank you !

Yann

Maybe a bad filter IC? Can you calibrate the voices / filters? (I've got a Gligli in mine, so it's relatively easy to do in my case FWIW)

[yannluaudio]

Hi,

I have here an old Prophet 600 to repair.
Everything is OK except than it seems that the 6th voice is not filtered.
Actually when I play key after key also, not only with several notes at the same time.

Is it a known issue ?

Please help.

Thank you !

Yann

Maybe a bad filter IC? Can you calibrate the voices / filters? (I've got a Gligli in mine, so it's relatively easy to do in my case FWIW)

OK thanks I am gonna check the voltage on each PIN 15 of each 3372 IC

[yannluaudio]

This is the CEM3372 of the voice 5 which is suspect.
Where to find this IC ?

[DavidDever]

This is the CEM3372 of the voice 5 which is suspect.
Where to find this IC ?

http://syntaur.com/Items.asp?Item=1832

among other options. Google is your friend!

[cbx]

Have you looked at Wine Country? I think they are still do repairs on old stuff.

http://winecountrysequential.com/

[yannluaudio]

I live in Europe I found this: http://electricdruid.net/product/cem3372-synth-voicing-chip/