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The electronic volume control section circuit is faulty. The system control section tries to adjust the volume, by sending command voltage to the volume control section circuit, but this circuit do not accept or process it. Troubleshooting to this type of fault, is skilled one. Contact any service technician, or the service center.
If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Timeslide" will make surf easy. Pull up older posts. Surf the site with patience. Do a search by type in the brand name of your device at its search box and press "Enter". http://electronicshelponline.blogspot.com/
I suppose the problem of your unit is memory, sometimes this problem can be fix by applying service mode, but if not, then memory should be replace and I would advise you to send your unit to service center.
Hi, It sounds either volume down button is bad that turns volume down on its own or system control chip got defective and decreasing volume level. Press volume down button on tv front and check is it working properly. Let me know to find out further info to solve the issue. Thanks.
Try disconnecting the speakers at the receiver. turn it on radio or any other source and turn up the volume. If the receiver still shuts of, there is an internal capacitor issue and needs serviced. More than likely though, it's a speaker problem. If the speakers were underpowered and at max volume, chances are the damage was to a voice coil in one of the speakers. If the receiver continues to stay on without being connected it's ok. check your speaker wires as well. Frequently loose braids on wires touch each other and create very little resistance until turned up, more volume, more resistance. Then the receiver puts itself into protection mode so no damage will occur. If you need further help, post a comment and I can help you troubleshoot further.
Two things can cause the problem your set has,one is the volume up button in the front of the set is pushed in too far and it has the momentary switch active all the time or the cleaning solution you use to clean the face of the tube has dripped down thru the lower edge of the frame into the switches creating a short and making again the switch active all the time.If the cleaning solution went down to the switches they will need to be replaced.If you are familiar with tv service you can remove the back cover and check that the button is not pushed in or it has corrosion built into.If you are not too familiar with tv service be safe and take the set for repair,if they come to your home it will be more expensive.
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