Thanks for responding. All knobs and switches appear to be working properly except positions one and two on the range switch sound exactly the same and the Depth pot works as a volume control in those two positions (whether it's set to Phase or Vibrato).Wrong. The PV switch, which should be two position ON/ON, will turn the DEPTH control into a VOLUME control when set to the VIBRATO position.
The RANGE switch will stop the LFO in the middle position.
View attachment 30238
Detailed photos that have enough resolution so we can read the part numbers on the ICs.
The switch in pic #3, which switch is that?
Have you double-checked that the wiring to all switches and pots is correct and there are no broken wires?
I'm boxing it up and sending it to my brother. Thanks!It's doing what it's supposed to do. Fixed phase is a "comb filter." It alters the tone, but since there is no movement, the effect is much less pronounced.
I found this by visual inspection. Best troubleshooting tool there is.
Glad you got it fixed, mark it SOLVED.
Got it. Thanks much!In the center position it should sound like a manually controlled phaser when you turn the SWEEP control back and forth.
Great, now mark it SOLVED.I'm boxing it up and sending it to my brother. Thanks!