20 Most Recent JVC RX-6042 Receiver Questions & Answers

first confirm power cord is firmly inserted----change cable between sub and receiver--repeat your setup for speaker.

It sounds to me like you have a problem with one of the amplifiers and the speaker protection is activating. If you are playing at a low volume setting and this is happening, the likelyhood is that one of your bias levels is out of tolerance. If you don't know what you are doing, get someone who does to check the DC voltage on your speaker outputs without the speakers connected. The bias control should be set to 0 volts on the speaker outputs.

It will be one of the transistors that regulate the lower volatges (5V, 12V...)I ffixed mine. the heatsinking on those transistors is pathetic, and its no wonder they dont last.Mine was the 5V circuit, which also supplies the DSP board. so if you are getting a DSP NG, that could be that as well.Check Q1434 and Q1404. if one is faulty, it drags the other one down with it.Good luck.

Generally speaking, an amp protects itself from heat, shorts and overloads. I'm thinking heat.

Overloads can be from excessive periods of high output and shorts would be wiring issues or a speaker blowing up.

You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.

If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.

If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced hands-on tech.

Generally speaking, an amp protects itself from heat, shorts and overloads.

Overloads can be from excessive periods of high output and shorts would be wiring issues or a speaker blowing up.

You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.

If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.

If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced hands-on tech.

Try disconnecting your speakers. Then see if the unit displays overload. If it does, then the finals in your Amplifier have gone bad and will need service. If the unit comes on and there is no error, you most likely have a bad speaker.

I hope this information allows you to resolve this issue.
If you need further assistance please comment to this post and I will try to help you further.
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asnowman

They don't overload from missing speakers. I'm curious, what buggered the one speaker?

Examine all of your speaker wires carefully to be sure no unintended contact is made between them and anything else.

Is "overload" being displayed?

“OVERLOAD” starts flashing on the display.

Speakers are overloaded because of high volume.

1. Press STANDBY/ON on the front panel to turn off the receiver.
2. Stop the playback source.
3. Turn on the receiver again, and adjust the volume.
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Speakers are overloaded because of short circuit of speaker terminals.

Press STANDBY/ON on the front panel, then check the speaker wiring.

If “OVERLOAD” does not disappear after turning on the receiver again, unplug the AC power cord, then plug it back in again.
If speaker wiring is not short-circuited, contact your dealer.

Define optimum.

If it tests out in the speaker setup then it's probably just fine. There usually isn't much program material directed to that speaker.

Check the setting on the receiver. Sub on and front speakers need to be set to small.

Si usan el aparato por un periodo largo de tiempo puede ser una de las bocinas que este fallando,mas si se corta rapido pueden ser los ICs amplificadores de audio que estan comenzando a dañarse.Espero que les sea de ayuda.

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.

Does the whistling show up no matter what you have selected for an input?
Disconnect all the inputs to the receiver and try listening again.
Let me know.
Thanks

just google jvc go to customer service at the bottom look up manuals and u can print it right off the internet no cost

Try a Logitech Harmony remote. I have sold many to several customers and am yet to see a piece of equipment it won't run. They range from $60 to $2000. All the generic universal remotes are useless and never run things properly.