Mattfig
Well-known member
OK guys, this has been making me nuts...I checked all fuses (yes, even the ones hidden under the MIDI board)....My amp powers up, tubes light, no sound, no bias readings? Any ideas on what to do next?
RM100 running with no sound
- Thread starter Mattfig
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VOD
Well-known member
Maybe it's what happened to me? Exact same symptoms -
http://mtsforum.grailtone.com/viewtopic.php?t=17255&postdays=0&postorder=asc&start=0
http://mtsforum.grailtone.com/viewtopic.php?t=17255&postdays=0&postorder=asc&start=0
Mattfig
Well-known member
VOD said:
Wow....OK, so what solved the issue...Something before that housing was put together? I'm a bit confused but it is an identical issue and I appreciate you chiming in with help, this is really annoying me!
VOD
Well-known member
It seems semi common. The copper spacer underneath the ohms switch had become loose over time and slid out of place. After popping it out it took two seconds to get it back in order.
The second post on page 2 by kc2eeb tells the reassembly order. It's worth a try.
Believe me, I can sympathize. I went nuts for two days with mine!
The second post on page 2 by kc2eeb tells the reassembly order. It's worth a try.
Believe me, I can sympathize. I went nuts for two days with mine!
Mattfig
Well-known member
******! I was hoping my issue would be the same but I guess not.....I get the appropriate readings from my multimeter...Any other ideas??
VOD
Well-known member
I'm sure you've probably done all these, but just running possibilities through my head-
Checked / swapped all tubes in modules and head, inverter, etc.
Jumper effects loop
Swap modules in slots.
Check fuses with meter (I've had them go out without looking like it on visual inspection).
Checked / swapped all tubes in modules and head, inverter, etc.
Jumper effects loop
Swap modules in slots.
Check fuses with meter (I've had them go out without looking like it on visual inspection).
Mattfig
Well-known member
VOD said:
Yep....
VOD
Well-known member
My next thought would be faulty standby switch. Do you get any pop or noise when switching on?
Mattfig
Well-known member
OK, I guess I should ask...Which fuses should I be checking? There's a lot when it comes down to it...I was mainly concerned with the two under the MIDI board but they have been replaced with the proper value and checked for continuity...****!!!
VOD
Well-known member
Not the answer your probably going to want, but If you have it open, I would just check them all. I'm having a brainfart and can't remember the location of the ones that would be the most obvious, sorry about that.
It may be worth the piece of mind knowing you eliminated all fuse possibilities. are you popping them out to check?
I know someone who had a standby switch go out that caused a similar thing as I mentioned, so that would be next for me after the fuses.
Finally, did this one get a new Salvation board? If so, I would check the connections on it, and see if something got knocked out of place with the standby during installation if you did put one in.
It may be worth the piece of mind knowing you eliminated all fuse possibilities. are you popping them out to check?
I know someone who had a standby switch go out that caused a similar thing as I mentioned, so that would be next for me after the fuses.
Finally, did this one get a new Salvation board? If so, I would check the connections on it, and see if something got knocked out of place with the standby during installation if you did put one in.
kc2eeb
Well-known member
I once had an open speaker cable......
Mattfig
Well-known member
Thanks for the suggestions...There's a lot to check but so far all seems ok....
Not a bad cable either, bummer!
Not a bad cable either, bummer!
Mattfig
Well-known member
VOD said:
Nope....
Mattfig
Well-known member
AND WE'RE BACK!!!
Thanks guys...This one turned out to be the standby switch...But not at the switch itself...Somehow the connector from the switch back to the main board came loose...As soon as I saw it I, I peed a little from sheer happiness...One little connection and voila!
Thanks!!!!
That's what I get for tinkering around these things....This is one of 3 RM100s I have and is the one I like to bang on to try different stuff...I play it safe but like to explore a bit...Somewhere in my adventures I must have bumped the connector loose and it must have just slid out while I was juggling my amps....
Thanks guys...This one turned out to be the standby switch...But not at the switch itself...Somehow the connector from the switch back to the main board came loose...As soon as I saw it I, I peed a little from sheer happiness...One little connection and voila!
Thanks!!!!
That's what I get for tinkering around these things....This is one of 3 RM100s I have and is the one I like to bang on to try different stuff...I play it safe but like to explore a bit...Somewhere in my adventures I must have bumped the connector loose and it must have just slid out while I was juggling my amps....
Mattfig
Well-known member
drewiv said:
Thanks...Anthony totally bailed me out with the fuse issue...He knows these amps so well it's scary...
VOD
Well-known member
Glad you got her back up Matt. I was definitely thinking it was something to do with the standby.
Mattfig
Well-known member
VOD said:
You were spot on! Thank you!!
