Question about JVC RX-668V Receiver

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Overload I have my receiver hooked up to a variable audio control on my tv so I have to turn the volume up quite high on the receiver (55-60) so I can get the loudness I want when I turn my tv volume up. I have run it this way for several years. Now when I run my receiver at this higher level for a period of time (about 20-30 minutes) while watching tv through the surround sound, the receiver shuts down and flashes "overload". If I turn the receiver off and back on it seems to work fine but will automatically turn the volume down for me. The troubleshooting in the manual says the speakers are being overloaded because of high volume or terminal short circuit. I have not had this problem in using it in this exact manner for over 4 years so I am suspect that the speakers could all of the sudden be overloaded. My concern is where do you think the problem lies, in the receiver or in the speakers.

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SOURCE: Overload

Try first to disconnect all of your speaker wires and turn back on this receiver. If the problem persists, you will need to take the unit into a shop and have the output circuits checked out, as these are all solid state parts that are soldered into the printed circuit boards and there are no user replaceable parts inside this receiver. Good Luck

Posted on Jun 07, 2007

  • 20 Answers

SOURCE: my jvc rx-6010v is OVERLOADING?

The very FIRST thing to check is to make certain ALL of your speakers have an IMPEDENCE of 8 OHMS. (JVC - and others - say SIX ohms, but 8 is the "standard" you should use.) Virtually all speakers of even modest quality will include this specification on a label on the back of the speaker. You CANNOT run more than (2) TWO speakers with 4 OHMs impedence on ANY amplifier (technical discussion too long!) [NOTE: The internal overload protection system you mention is designed to help prevent permanent damage. However, you cannot re-set these systems yourself. Your dealer or authorized JVC service center must do this. Note, though, that if you have attempted to "cheat" the system several times, damage CAN be done that requires servicing.] But, before you take the unit in for service, there is one more "test": check for shorted and/or mis-connected/disconnected speaker cables/wires. Visually inspect connections at the receiver and speakers first. You might find something obvious! If everything looks okay, then disconnect ALL of the speakers; and reconnect and test them one at a time (at relatively low volume.) For example, reconnect the left front speaker, test the system; THEN add the right front, test the system,and so on, ADDING one more speaker each time - FIRST MAKING SURE EACH OF THEM HAS AN IMPEDENCE OF AT LEAST 8 OHMS! IF there is a short (or bad speaker) this will help isolate it. Hopefully one of these "fixes" will work for you. GOOD LUCK!

Posted on Jul 18, 2007

SOURCE: overload

Also could be speaker wire. Make sure all of the speaker wire is hooked up correctly and none of the wires touch awywhere.

Posted on Jan 14, 2008

  • 1175 Answers

SOURCE: it says overload

All the speakers connected right?
ANy speaker fuses not accounted for?
If you moved , someone may have dropped it or bonked it enough to crack a printed circuit board. That would make things unpleasant.
It's fairly easy to fix a cracked PCB if you know what to look for.

Posted on Feb 28, 2008

  • 1 Answer

SOURCE: jvc receiver OVERLOAD

possible short across speaker wires somewhere or even inside speaker

Posted on Jan 23, 2009

  • 336 Answers

SOURCE: overload flashs

there will be 6 amp circuit in your receiver. you can't unplug them one by one. with a multi-meter you may be able to find the shorted channel. (most JVC receivers use discrete circuits instead of an output IC) Check for shorted transistors attached to the heat sink. You will possibly find some open resistors also. Generally this is a job for a pro.

Posted on Feb 27, 2009

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Run the box's analog RCA Audio Out to the TV (assuming it has speakers). Set the box's internal volume setting (if it has one) to FIXED and modulate theTV volume with ITS control.


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I personally have NO high-end video going into my receiver and no high-end audio going to my TV. Why bother with hops?

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THe problem is with the variable resistor present behind your volume control knob, try replacing the volume controls variable resistor, this must work fine... this is a common prblem for all the music equipment that has knob control for the volume....

This resistor can be replaced with your product warranty, contact your seller for the details regarding warranty...No need to woory about this, this is a sommon problem for most of recievers


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