LED 6 and SW 4 not working; is anyone else having a similar problem?

Discontinued products Anushri
#1

Hi everyone,
Does anyone else have a problem with these two points or similar ones on their board? Are they connected in any way? Everything else works fine but I just can’t seem to start the sequencer, and the LED 6 doesn’t light up when booting or when I’m recording a sequence. I’m getting a little under 5 volts from the two connecters on each switch except 4, and a reading from all the LED’s except 6.

I’ve had a bit of a look at the schematic and as far as I can tell there are no common threads that would stop these two components from working. Would it be possible to solder a jumper between the two holes of LED 6? I supose having one dead LED not there would be worth getting the sequencer going.

Let me know if any of you want/need pictures or more multimeter read outs. Thanks in advance!

#2

Juste reflow the solder joints on those…

#3

I have done, both have very strong connections.

#4

Then check the joints on the ATMega, the corresponding 220R Resistor for the LED and the Resistor Network and the 74xx165

#5

All seem to be connected (at least to the same quality as everything else on the board).

#6

Sure they are not, else it would be working :wink:

#7

Alright, wicked and resoldered the connection… and it works! Thanks a whole bunch.