Question about Audio Players & Recorders
my old Pioneer D702s receiver is out of order.
How it used to be:
I was used to hear a relais clicking after I turned on the unit. Once the relais closed/opened the receiver would work just fine. It used to take only a second or two until the receiver was ready.
How the problem started:
I noticed that my receiver would need more and more time to get ready. Sometimes it would take minutes until I heard a relais clicking.
How it got worse:
That relais click problem got worse. It would need more and more time. Sometimes the problem would even occur when I switched to another input source. I would have to wait for that relais again.
Receiver turns on. I can select inputs and whatever but theres no sound.
I know that the modell is very old but I like it :) Could someone provide me with a circuit plan or service manual? Anyone having/had trouble with same modell?
The unit is in what is called "protect" mode. A problem was detected in the final output stage and that stage is turned off. The most common reason for this is failed output transistors. This is a simple repair for any repair shop and will cost about $10-$15 for parts plus the local labor charge. Expect that the output transistors plus a few supporting parts to be replaced. Most of the time, only one channel is badm, but due to the design of the protection circuit, both channels are turned off.
Posted on Apr 01, 2008
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Posted on Jan 02, 2017
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