Samson XM 610 Power Mixer

[daviddwitty]

Hi all

Samson XM610

Amp 1 Main Main OK
Amp 1 Main Mon N/W

Amp 2 Main Main N/w
Amp 2 Main Mon N/W

Also, unit clips at half volume

Looks to me that Amp2 board is the problem but can't find parts. Are there any obvious components I should look to replace?

Thanks

[nosaj]

Hi all

Samson XM610

Amp 1 Main Main OK
Amp 1 Main Mon N/W

Amp 2 Main Main N/w
Amp 2 Main Mon N/W

Also, unit clips at half volume

Looks to me that Amp2 board is the problem but can't find parts. Are there any obvious components I should look to replace?

Thanks

What parts can you not find?
Good thing is one side is working, so o you have a reference.
Start with finding a schematic, then we can start with voltages. I'm on cell phone, but I think there is a thread here you can pull it from there.
Nosaj

[tboy]

... think there is a thread here you can pull it from...

Here: https://music-electronics-forum.com/...3&d=1453156101

[daviddwitty]

What parts can you not find?
Good thing is one side is working, so o you have a reference.
Start with finding a schematic, then we can start with voltages. I'm on cell phone, but I think there is a thread here you can pull it from there.
Nosaj

Thanks for responding. I was looking to replace the Amp board but can't find any for sale. I do have a schematic from Samson..

[Enzo]

Contrary to popular opinion, that is rarely how we repair things. As service centers we are expected to repair the circuits at component level. Only time we went for a board swap was when the old board had turned to charcoal.

[daviddwitty]

Contrary to popular opinion, that is rarely how we repair things. As service centers we are expected to repair the circuits at component level. Only time we went for a board swap was when the old board had turned to charcoal.

I'm just a drummer trying to get our PA working. Not a service center here..

[Jazz P Bass]

Thanks for responding. I was looking to replace the Amp board but can't find any for sale. I do have a schematic from Samson..

Although you have not done proper troubleshooting to determine if , maybe, it is a preamp problem?

[daviddwitty]

Although you have not done proper troubleshooting to determine if , maybe, it is a preamp problem?

How would you go about ttroubleshooting the pre-amp? I assume you would test signal with a scope, no?

[Jazz P Bass]

You can use the front panel Main Out & Monitor Out jacks.
Send each, one at a time to another amp.

[daviddwitty]

You can use the front panel Main Out & Monitor Out jacks.
Send each, one at a time to another amp.

Main out front panel works (Main Main mode)

Monitor out front panel does not work (Main Monitor mode)

[daviddwitty]

Main out front panel works (Main Main mode)

Monitor out front panel does not work (Main Monitor mode)

Thank you Jazz for steering me in the right direction..

[nosaj]

Thank you Jazz for steering me in the right direction..

See you can teach a drummer new tricks

You'll find some of best help here.

nosaj

[Jazz P Bass]

Main out front panel works (Main Main mode)

Monitor out front panel does not work (Main Monitor mode)

Keep in mind that the "Main / Monitor" selection is after those two jacks.

[daviddwitty]

Keep in mind that the "Main / Monitor" selection is after those two jacks.

so when in "Main/monitor" front panel jacks are bypassed?

[Jazz P Bass]

Other way around.
The jacks are before the switches.