A
ccw-cw 18.8 kohms
ccw-wip 2.16 kohms
wip-cw 16.87 kohms
B
ccw-cw 19.0 kohms
ccw-wip 2.21 kohms
wip-cw 17.09 kohms
ccw-cw 18.8 kohms
ccw-wip 2.16 kohms
wip-cw 16.87 kohms
B
ccw-cw 19.0 kohms
ccw-wip 2.21 kohms
wip-cw 17.09 kohms
now it is logical
Pot is OK
taking in account that you confirmed with buzzer that pot pins are connected to proper screw contacts as :
CCW to COM
WIP to OUT
CW to IN
now, routing to preamp pcb is, screw contact on pot pcb to preamp pcb pads:
COM to CCW
OUT to WIP
IN to CW
if that is ok, again confirmation with buzzer test, pot must be in mid position, test continuity between each pot pin and appropriate pad on preamp pcb
also, when wiring is completed, again test with buzzer between pot pins, to establish there is no shorts with pot in circuit
Pot is OK
taking in account that you confirmed with buzzer that pot pins are connected to proper screw contacts as :
CCW to COM
WIP to OUT
CW to IN
now, routing to preamp pcb is, screw contact on pot pcb to preamp pcb pads:
COM to CCW
OUT to WIP
IN to CW
if that is ok, again confirmation with buzzer test, pot must be in mid position, test continuity between each pot pin and appropriate pad on preamp pcb
also, when wiring is completed, again test with buzzer between pot pins, to establish there is no shorts with pot in circuit
I connected as before:
CWR-AIN
WIPR-AOUT
CCWR-ACOM
CCWL-BCOM
WIPL-BOUT
CWL-BIN
Continuity everywhere except CCWR pad. The conductor is continuous but not the pad. I had desoldered the right side a while ago because wires were placed wrong (per IXNAY’s experience). I think they are in the right place now. Question: The traces imply a common ground between CCWR and CCWL. Is it possible to bridge to CCWL rather than try and recover my torching of the pad?
CWR-AIN
WIPR-AOUT
CCWR-ACOM
CCWL-BCOM
WIPL-BOUT
CWL-BIN
Continuity everywhere except CCWR pad. The conductor is continuous but not the pad. I had desoldered the right side a while ago because wires were placed wrong (per IXNAY’s experience). I think they are in the right place now. Question: The traces imply a common ground between CCWR and CCWL. Is it possible to bridge to CCWL rather than try and recover my torching of the pad?
CCWL and CCWR are both GND on preamp pcb, so - yes - shorted
thin wire bridge, connecting CCWR and CCWL pads, and you're good
for future - avoid non-leaded solder, practice soldering and desoldering skills, never hurry
thin wire bridge, connecting CCWR and CCWL pads, and you're good
for future - avoid non-leaded solder, practice soldering and desoldering skills, never hurry
it’s alive! Thank you all who helped me across the finish line. Timkrone, Ixnay, ItsAllInMyHead, and especially Zen Mod!! So many lessons learned which I’ll summarize in another post but basically I had no continuity to the board at one lead from the volume pot. I’m going to put in the main system now and feel the zen. Thank you.
Attachments
