Bogen GS3 100 Service manual

[Michael Lucius]

I have a problem with the unit that is difficult to find without a schematic. The unit is slow to power up. In other words, it does not have any output until several minutes or several days after it is turned on. I have replaced the 4700uf-63v capacitors that were obviously bad (bulging at top). I have checked many of the other components in the power supply section with no success. At home (125 volts) it will turn on within 3 minutes after a cold start. Then it will turn on after only 3 seconds if I turn it off and on quickly. At my store (114 volts) it will take several hours to several days to turn on. At each location, I tested using the exact same configuration (PA system, speaker, and tuner).

If anyone has any suggestions or a schematic, I would greatly appreciate any help. If you have more questions, I will be happy to answer them.

Thank you.