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2011-01-02 by radek
I have another Polysix that had battery leak problem. I've managed to fix broken traces etc. The last thing which doesn't work are effects. When i switch it to chorus/phaser there is no effect. speed knob doesn't react. when i switch effect to ensemble i can hear it but intensity also is dead. what can be the reason?
2011-01-02 by Andrew Jury
Hi, Check the output of IC34 at the following pins: 10 - chorus 1 phase 11 ensemble I believe these should go high went the effect is selected. If there seems to be a switching action at the these pins check to see if the voltage at IC16 pin 1 varies as you change the speed knob. Report back with your results! Cheers, Andy On 02/01/2011 12:05, "radek" <radek.tymecki@op.pl> wrote: > > > > > > I have another Polysix that had battery leak problem. I've managed to fix > broken traces etc. > > The last thing which doesn't work are effects. When i switch it to > chorus/phaser there is no effect. speed knob doesn't react. when i switch > effect to ensemble i can hear it but intensity also is dead. > > what can be the reason? > > > > > [Non-text portions of this message have been removed]
2011-01-06 by radek
Hi there! pin 1, 10 and 11 went high. also voltage on pin 1 of ic16 changed when i was turning speed knob. --- In PolySix@yahoogroups.com, Andrew Jury <andy@...> wrote:
> > Hi, > > Check the output of IC34 at the following pins: > > 10 - chorus > 1 phase > 11 ensemble > > I believe these should go high went the effect is selected. If there seems > to be a switching action at the these pins check to see if the voltage at > IC16 pin 1 varies as you change the speed knob. Report back with your > results! > > Cheers, > Andy > > > > > On 02/01/2011 12:05, "radek" <radek.tymecki@...> wrote: > > > > > > > > > > > > > I have another Polysix that had battery leak problem. I've managed to fix > > broken traces etc. > > > > The last thing which doesn't work are effects. When i switch it to > > chorus/phaser there is no effect. speed knob doesn't react. when i switch > > effect to ensemble i can hear it but intensity also is dead. > > > > what can be the reason? > > > > > > > > > > > > > > [Non-text portions of this message have been removed] >
2011-01-06 by Andrew Jury
Hi Radek, Seems that the KLM-367 is not the issue. BTW the intensity voltage should vary from 5V (0) to +5v (10). Next turn to the KLM-368 and check the switch input buffer op-amps (IC23) and then the quad bilateral switch IC14. One thing to note. I have had various NE571 compander chips fail on these board before which cause numerous and amusing effects of there own! Let us know how you get on. Cheers, Andy On 06/01/2011 10:40, "radek" <radek.tymecki@op.pl> wrote: > > > > > > Hi there! > > pin 1, 10 and 11 went high. also voltage on pin 1 of ic16 changed when i was > turning speed knob. > [Non-text portions of this message have been removed]
2011-01-06 by radek
hmmm.... intensity wasn't vary'ing when i was checking pin 1. when it was on 0 it was 0.5 v when it was set on 10 voltage was 0.01 v or sth like that... --- In PolySix@yahoogroups.com, Andrew Jury <andy@...> wrote:
> > Hi Radek, > > Seems that the KLM-367 is not the issue. BTW the intensity voltage should > vary from 5V (0) to +5v (10). Next turn to the KLM-368 and check the switch > input buffer op-amps (IC23) and then the quad bilateral switch IC14. One > thing to note. I have had various NE571 compander chips fail on these board > before which cause numerous and amusing effects of there own! > > Let us know how you get on. > > Cheers, > Andy > > > On 06/01/2011 10:40, "radek" <radek.tymecki@...> wrote: > > > > > > > > > > > > > Hi there! > > > > pin 1, 10 and 11 went high. also voltage on pin 1 of ic16 changed when i was > > turning speed knob. > > > > > > [Non-text portions of this message have been removed] >
2011-01-06 by Andrew Jury
Make sure the op-amp that is buffering the output of the mux is still behaving like a an op-amp! Also, do make sure you are in Manual¹ mode before measuring these voltages.... Cheers, A On 06/01/2011 16:35, "radek" <radek.tymecki@op.pl> wrote: > > > > > > hmmm.... intensity wasn't vary'ing when i was checking pin 1. when it was on 0 > it was 0.5 v when it was set on 10 voltage was 0.01 v or sth like that... > > --- In PolySix@yahoogroups.com <mailto:PolySix%40yahoogroups.com> , Andrew > Jury <andy@...> wrote: >> > >> > Hi Radek, >> > >> > Seems that the KLM-367 is not the issue. BTW the intensity voltage should >> > vary from 5V (0) to +5v (10). Next turn to the KLM-368 and check the >> switch >> > input buffer op-amps (IC23) and then the quad bilateral switch IC14. One >> > thing to note. I have had various NE571 compander chips fail on these board >> > before which cause numerous and amusing effects of there own! >> > >> > Let us know how you get on. >> > >> > Cheers, >> > Andy >> > >> > >> > On 06/01/2011 10:40, "radek" <radek.tymecki@...> wrote: >> > >>> > > >>> > > >>> > > >>> > > >>> > > >>> > > Hi there! >>> > > >>> > > pin 1, 10 and 11 went high. also voltage on pin 1 of ic16 changed when i was >>> > > turning speed knob. >>> > > >> > >> > >> > >> > [Non-text portions of this message have been removed] >> > > > > > > [Non-text portions of this message have been removed]
2011-04-13 by radek
I've exchanged those 2 ic's on effects board [4066 and lm324n] but effects still are not working :( --- In PolySix@yahoogroups.com, Andrew Jury <andy@...> wrote:
> > Make sure the op-amp that is buffering the output of the mux is still > behaving like a an op-amp! Also, do make sure you are in 5533;Manual¹ mode > before measuring these voltages.... > > Cheers, > A > > > On 06/01/2011 16:35, "radek" <radek.tymecki@...> wrote: > > > > > > > > > > > > > hmmm.... intensity wasn't vary'ing when i was checking pin 1. when it was on 0 > > it was 0.5 v when it was set on 10 voltage was 0.01 v or sth like that... > > > > --- In PolySix@yahoogroups.com <mailto:PolySix%40yahoogroups.com> , Andrew > > Jury <andy@> wrote: > >> > > >> > Hi Radek, > >> > > >> > Seems that the KLM-367 is not the issue. BTW the intensity voltage should > >> > vary from 5V (0) to +5v (10). Next turn to the KLM-368 and check the > >> switch > >> > input buffer op-amps (IC23) and then the quad bilateral switch IC14. One > >> > thing to note. I have had various NE571 compander chips fail on these board > >> > before which cause numerous and amusing effects of there own! > >> > > >> > Let us know how you get on. > >> > > >> > Cheers, > >> > Andy > >> > > >> > > >> > On 06/01/2011 10:40, "radek" <radek.tymecki@> wrote: > >> > > >>> > > > >>> > > > >>> > > > >>> > > > >>> > > > >>> > > Hi there! > >>> > > > >>> > > pin 1, 10 and 11 went high. also voltage on pin 1 of ic16 changed when i > was > >>> > > turning speed knob. > >>> > > > >> > > >> > > >> > > >> > [Non-text portions of this message have been removed] > >> > > > > > > > > > > > > > > > [Non-text portions of this message have been removed] >
2011-04-14 by Kristofer
--- In PolySix@yahoogroups.com, "radek" <radek.tymecki@...> wrote: > > I have another Polysix that had battery leak problem. I've managed to fix broken traces etc. > > The last thing which doesn't work are effects. When i switch it to chorus/phaser there is no effect. speed knob doesn't react. when i switch effect to ensemble i can hear it but intensity also is dead. > > what can be the reason? > Try to swap out IC13, an op-amp that seem to be common for chorus and phaser modes output before the SK30-transistor. /kroffe