Re: I have a pioneer receiver vsxd488(noone else seems...
One of the power amp ICs has blown and the receiver is sensing a DC offset on the output stage. The ICs are available for around $40-$50 but must be soldered into the circuit board. All five output stages must be measured for DC offset to find out which chip is bad before the receiver cuts off. The voltages involved are dangerous and this should not be done except by someone experienced with working on live equipment.
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I have never seen RCA to digital conversion, and if it did exist you would have to convert from digital to analog in order for this to work, the sound quality would be degraded and unreliable, plus sound level would drop.
red is usually ignition switched power from the fuse box and the yellow is continuous power to the deck. blue with the stripe is usually a voltage output from the deck to control the on/off of an external amplifier. If you hook the deck up and the memory stations do not save after vehicle on/off cycle of the ignition swap the yellow and the red wire and they should work. One is power all the time to allow the deck to store memory and the other is the main power to the unit.
Can you please tell me what model number of Pioneer you have. All Pioneer receivers are not the same. In fact, most model numbers are different from all the other model numbers. The problem one model may have, will most likely not be the same thing that causes that problem in a different model number.
is the square button also labled as down arrow button, push the down arrow button and will give access to the lcd screen setup options on the receiver center speaker size lfe att settings cross over rear channel size ect. i don't have the manual either took me a year to fix the issue.