Question about Sony STR-DG500 Receiver
I turned on my receiver and after a minute or so it went into protect mode and turned off, reading the sony users manual it said to check your speaker connections and do a memory reset, i have done both to no avail.
I opened the receiver up and saw no visible signs of electronics failure, and i would like to know what component is most likely to need replacing so i can try that before i purchase the service manual.
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Posted on Jan 02, 2017
SOURCE: Protector mode..
I own this model and found if powered from an isolation transformer type surge protector, with other equipment, this may cause insufficient line voltage to unit. Try plugging directly into wall socket, if that was the case. Otherwise, protect indicates problem with circuit, take to prof. tech for check out.
Posted on Apr 13, 2008
SOURCE: stuck in protect mode
Protet mode is a special diagnostic mode that starts when a fault is detected.
When in protection mode the unit is prevented from starting by protection circuit, so to prevent further damage.
Check the speakers and speakers wiring, a contact in speaker wires, or faulty speakers can send the unit in protection.
Try unplugging power cable for one hour or so. then connect cable back and see if you get rid of protect state. Sometimes accumulation of electrostatic charges inside circuit capacitors can kick in protect mode. In that case unplugging the unit from main for some times can get rid of electrostatic charges, and reset circuits by draining power completely.
If that was the problem, you will not get Protect when plugging back power cable.
If you do all the above and still get Protect, then there is a real fault.
In that case the unit may be disassembled and tested to find the fault.
If that is the case I suggest contacting the manufacturer at the number listed on the owners manual, or asking a quote on repair to a local technician.
Posted on May 29, 2009
Sounds like faulty psu (pwer suply unit) Amp is going into protection mode. Disconnected all speaker and av wires (only power) turn up volume and see if it stays on. If not psu, sounboard or volume function faulty. If on, connect one speaker L or R. Go to tuner mode to tuned radio station an listen for sounds. If on, connect speakers and av cables one by one and test each one on its own until amp switches off, Investigate from there were problem is. Make sure speakerwires is not shorting out.
Posted on Aug 29, 2009
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