I have had a Pioneer VSX-D608 for 8 years and have had very little problems. I usually keep the volume level around -35 to -40, but all of a sudden I have an issue. The other day, the volume wasn't working correctly and it no matter how much I turned the volume nob, it wouldn't change from in the -80's.
I partially answered my own question...the remote is working fine. How do you fix a volume knob.
I just picked up one at the dump. You have to take apart the front end by unscrewing screws and pulling out ribbon edge connections. It is easier than some components. Then pry off two of the small clamp downs on the front of the volume potentiometer; pry apart about 1/32 of an inch and spray control cleaner for a second and clamp down. repeat on other side.
worked for me.
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I've seen similar problems with volume knobs on older stereos in cars, and it should be the same with home stereos. What happens is the knob itself starts to come unsoldered or lose contact somehow from the main board in one or more of the multiple connectors. I recommend you open it up to have a look at the knob's connection to the main board, and see if any of the connectors have lost contact. If they have, the best you can do is to resolder them.
Either that, or get used to blasting music :)
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The short answer is there is NO way anyone without hand on the unit could deduce the problem.
First of all, never use maximum volume to test for sound. That's like revving an engine to 10000 rpm's to see if it has started. If you can't hear anything useful at 1/2 volume it's essentially dead or a switch is out of place. If you were to suddenly set the switch or control right you might cook the amp and all its speakers.
Make sure MUTING or MONITOR are NOT activated. Turn the volume down before DEactivatiing either one.
If none of the above, it's toast until a tech can look at it.
Overload is displayed when the amp draw is excessive, and can be caused by different faults. when Overload is detected, the protection circuit will shut down the unit to prevent further damage.
The first thing to try is hard reset. Shut down the unit for about one hour to drain power completely. This can fix minor problems that can cause overload, for example electrostatic charge accumulation on internal capacitors.
If that does not fix the problem, then you must find the fault.
Overload can be caused by shorted speakers, wrong impedance speakers, or by a contact on speakers wiring. Check speakers connection and test different speakers with 6, or better 8 Ohms impedance.
Another test can be done by unplugging all speakers, and reconnecting and testing them one at a time, at a very low volume. No more than two 4 Ohms speakers can be connected to the unit, or you will get overload.
If the speakers are OK, then preamp, shorted input/output connectors, main power supply or faulty output transistors can draw too much amps causing overloading.
In that case it is recommendable contacting Pioneer at the number listed on the owners manual.
Be sure the sound source has a center channel output ie. not a 2 channel source only, try the test tone setup for 5 or 6 channel balance, if no sound from the center channel still then it is looking like maybe the center channel is blown.
If your rec'vr worked with the original front and rear speakers, the new speakers are either defective or ar the wrong impedance.
Also, I find this confusing: "I connected the wiring for 1 of the front speakers to the connection on the rear of the receiver". This may indicate wrong wiring connection. Make sure you have connected the speakers properly