Looper LEDs

[RDW]

Built a three-way bypass looper using this schematic (http://media.photobucket.com/image/true%20bypass%20loop%20schematic/PRSplaya/DIY/4-loop-MB.png), but eliminated master bypass switch and 4th loop. Credit to PRS playa for schematic.

Wired LEDs per diagram, but only third LED in series activates with switch. First two are dark....

Any suggestions?

Thanks-
RDW

[geertjacobs]

- measure voltage over LED+resistor when on and off
- check led polarity
- check resistor size

[chi_boy]

If all else fails, isolate the LED's and check with an battery, resistor, and alligator clips.

I've had 4 LED's turn up DOA.  The first 2 were after finishing wiring.  I check every one before soldering now.

[petemoore]

  Just prior to install, I like to tie the CLRsistor to the LED leg I chose.
  Then try the circuit on a battery to see if it lights and that the resistor is where I expect it to be in relation to battery polarity.
  It took me so long to get a method for this after reading different opposite methods I decided not to ID any polarity...find a way like...instead of pulling it to figure out what is where with it.
  The Anode has the flat-line.