[freshjulius]

I was just given two Rotel amps (the RB-1070 and integrated RA-1070), but neither is working.

• The RB-1070 powers on and gets it's standard LED (no fault-protect). I replaced the fuses which had been blown, but this didn't change anything, same symptoms.
  
• The RA-1070 does not show that it is powering on at all, unfortunately.

Does anyone have any ideas about these symptoms? As much as I'd love to pay a $120 bench fee for a diagnosis, I'm recently laid-off, so I'm trying this alternative route (besides, I always seem to find better info here!).


Thanks in advance!

 

[freshjulius]

No one?!? Would love to salvage these guys if I can for a reasonable price.

 

[dknightd]

Based on the information you provided (two things broken, with blown fuses) I'd guess they were subject to a lightning strike or other surge. Of course, I could be wrong, probably am. Hard to diagnose these things remotely. Since you are unemployed, and have an interest in these things, they might make good play things or learning tools. They cost you nothing, they are worth nothing, you have nothing to loose. Good luck

 

[A9X-308]



Quote:
Originally Posted by dknightd /forum/post/18289021


Hard to diagnose these things remotely.

Bingo, that's the problem. With a device in front of me I can see potential indicators of the cause of the fault or quickly solder in a replacement component to check, something I can't do describing it to someone with no electronic experience at a distance; I've done it before and it was not a great experience. If you were local I'd take a look for nothing, but I'm on another continent. Sorry.

 

[freshjulius]

I appreciate it guys and understand it's not something that's easily diagnosed remotely.


Did wonder if there was a simple indicator or a prevalent symptom of this sort of situation. Know enough about electrical components to be dangerous (for both of us!), so I completely understand.


Thanks anyway, did learn that the amps seemed to be used to power what looked like a dangerously low load due to the setup of their whole-house audio (several pairs per without any protection or knowledge of such).


Thanks again!

 

[Gizmologist]

If you pay the shipping for ONE unit I will TS it for free for you.


I am in Palmdale, CA.

 

[Paladin68]

It is certainly a kind offer to TS such a device for nothing. I have a considerable assortment of power transistors, precision resistors, and other assorted parts that I would be willing to donate in the event you want to effect a repair on one of the units. I did not stock many ic's but will help where I can. It is a tough time to be laid off and I believe in helping when I can.