Question about Sony STR-GX700ES
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Posted on Jan 02, 2017
SOURCE: no sound coming from subwoofer
Your receiver does not have a power amp to drive the speaker in the subwoofer while your other amp did. With this receiver you need to use a powered (active) subwoofer which has it's own power amp in it. You can either change out your subwoofer to a powered (active) subwoofer, or keep using your passive (unpowered) one and add a power amp between it and the receiver. The easiest way to tell a powered subwoofer is to see if has a place to plug it into the wall. If it does, it will most likely work in this situation.
Posted on Feb 19, 2008
SOURCE: flashing word "Protector"
Usually a protect fault will indicate a bad transistor in the amplification section. I suspect that the control circuit is sensing a fluctuation in the power supply and going in to protect mode. (assuming that the protect circuit itself is working properly) If a voltage is too high the unit will go in to protect mode to prevent damage to the speakers and the rest of the unit. I would take the unit in to a local repair shop and get a estimate of repair charges. Expect a 60 to 80 dollar repair charge depending on how many parts need to be replaced and what the repair labor rate is in your area.
Posted on May 05, 2010
In receivers, there are different power supplies or power supply outputs for the receiver and amplifier sections so you can have separate failures with one area not affecting the other. From your description, I think the (probably lower voltage) section for the receiver has either lost a cheap filter capacitor or a regulator IC. Neither of these are expensive parts but I can't know what labor costs in your area might be. An honest tech shouldn't ask more than ~$100 US for that kind of repair.
Posted on Apr 16, 2011
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