Home Forums GuitarPCB Build Support Tremolo hang ups Reply To: Tremolo hang ups

#4573
Billy
Moderator

Just heat the joint for around 3 to 4 seconds until the solder melts and reflows heat the solder pad and component leg at the same time to get a good electrical connection, just for info the audio path is highlighted here in blue

 

Where is it you actually lose audio? The only part of the circuit you should get audio is in the aptly named ‘audio’ section in purple below

 

Here are the voltages you should be looking for.

Power Supply  9V

Q1
D  9V
S 5.2V
G 4.5V

Q2
C 5.4V
B 1.7V
E 1.1V

Q3
D 0V
S 0V
G +0.5V to -4V

Q4
C 0V – 7V
B 0.7V
E 0V