Rotel Audio Players & Recorders - Page 6 - Recent Questions, Troubleshooting & Support

Hi.

Regarding first question, you will probably need to replace volume potentiometer, that is the part located behind the wheel.
Regarding replacement part , including remote you can contact Rotel.
A rebuilt remote is also available at the link below:
Rotel RX975 Replacement Remote Control

Some manufacturers allow you to set a max volume limit so you don't blow your ears off.  Check the users manual to see how to turn it off.
Also, have tech support install a new potentiometer for you.

I don't believe that Rotel service manuals are available outside of authorized service centers. Can you provide us with the problem that you have? Perhaps we can guide you through the repair.

Thanks,
Dan

Lets try the simple stuff first. This whole problem could be caused by a dirty switch contact. Pick up some electronics cleaner from a local electronics shop and spray the switch (from the inside of the unit). Work the switch on/off a number of times then respray one more time. That should clean out any dirt that is there. Try the unit again and hopefully the problem is resolved. If not, then the switch itself may need to be replaced. When you get the cleaner, get one that contains a lubricant as well. This will help to prevent the problem from coming back again.

Dan

some amps have a switch to bridge them rather than wiring a bridge meaning output is mono check to see if yours has this switch if you do simply put back to stereo

Why would it die from being in storage? Oxide or corrosion on contacts, volume potentiometer, Tape Monitor or other switch contacts.

Try manipulating all controls and switches throughout their ranges many times and see what happens.

Check the heaphone jack. If it works so does the right amplifier. While you're at it, insert the headphone jack multiple times to cycle its contacts, too.

The URC database should have codes for that unit. The software for programming the MX-900 has it. Which remote are you trying to program?

This sounds like there is a problem with the final output stage. Is this a new amp? Is it under warranty?

Dan

Make sure you connected your record player in the right inputs. Better try it to a line level auxilliary input that is sure to pass the volume control. hope this helps..

I have an RX 600 - which has just gone 'phut' - which is how I came today to find this website ! I once had your speaker problem but eventually tracked it down to a bad connection of the speaker cable into the rear of the Receiver. Plastic sheathing and dust was partly in the way. Strip off a bit more plastic to expose fresh bright wire, and remake secure tug-proof connection before you try anything else. Oh, and while you doing it, do the others as well !

Sounds like wiring problems. Unhook everything, then get owners manual for proper instruction

Try only A speakers.

if you say you checked the wireing ,did you check the speaker. disconnect on of the other speakers and connect up the center to see if you get sound. still no sound speakers bad. Got sound try unpluging unit for a couple of hours then try it again. still no center . Time for the repair shop. Good Luck

I'd suspect that one of the two output transistors on that channel has gone bad. If you are unsure how to test or troubleshoot this, then you might try replace both the NPN and PNP outputs and catch the bad one that way. If your amp uses an output module then you would of course have to replace the module which would replace all the output transistors on both channels. Good luck. Another thing to look out for, is the emitter bias resistors. They are the large white ceramic ones near the outputs. Sometimes one of those will open up too. They will be of a very small resistance value like .5 ohms (point five ohms) or something in that general ballpark, and have a wattage value of typicaly 5 watts. So they are pretty big resistors. Be sure to check them all even if you do find a bad output transistor. They will often go out with the transistor. Good luck.

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