I've been watching the other thread about low sound on a Legacy SD70 with interest. Our Santa Fe U28CG had really nice loud sounds when we last ran it about 6 months ago. I put it on the bench last week and am experiencing the same low sound mentioned in the other thread. Have tried all the suggestions but its still barely audible. Everything else is performing normally.
Any OTHER suggestions?
Thanks
It's one of our favorites and the RS4 sounds were really terrific
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Do a Reset - make sure the volume is not turned down with the Remote.
Maybe need a new Volume Pot.
Turn the volume up full and try it in conventional with the command base unplugged. See if the sounds are normal.
Have done a reset several times, turned the pot back and forth quite a bit and tried it just now with the Cab2 off. It lit up and I could hear some slight static and a 'pulsing' sound but nothing else. I don't have a transformer (am just using a brick) to check horn/bell but it should have made some prime mover sounds.
Pull the RS boards and reseat onto the mother board. See if that fixes it. If you have a VOM you can measure the terminals on the Volume pot. Center to one side should be 0 ohms while center to other should be 10K ohms when the knob is fully rotated. If you can't get 0 ohms the pot could be bad. G
Sam,
Remove your radio board and jumper the middle tab and the upper tab in above photo and apply power. What is your results.
Bill
Pull the RS boards and reseat onto the mother board. See if that fixes it. If you have a VOM you can measure the terminals on the Volume pot. Center to one side should be 0 ohms while center to other should be 10K ohms when the knob is fully rotated. If you can't get 0 ohms the pot could be bad. G
Eureka - that did it. Sounds great again, thanks fellas.
Bill, am glad I didn't have to get to your suggestion 
. Am not comfortable with 'electrical' fixes...
First successful repair I've had in awhile!
Good job. One down and one to go! G
My experience with pots (volume control and tone control roatating knobs) has led me to rotating them back and forth on a regular basis.
I have some older Fender Guitar Amplifiers and I found if I keep them moving I don't get static when moving them. My guess is they get dusty or dirty and by moving them on occasion they make better contact. I do this on my guitars also.
It's just one of those things I do. It is not based on anything other than my personal experience so it may be a load of crap, technically speaking. Just throwing it out there, it's easy to do and may make a difference down the road.
Jeff I can remember my guitar instructor (in 1961) telling us the same thing. I've always rotated pots as a matter of habit...
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