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JVC RX-9010V Receiver Questions & Answers
Receiver turns for a fews seconds then shuts down
Hi.
If the word "OVERLOAD" is in your display, we have a bad channel.
But if only turn off, and the standby led is on all the time, you need change a couple of resistor of 10 Ohms at 2 Watts in main board. But you need disassamble a must all the amplifier. A lot of work, but cheap part.
Best regards.
Overloaded. When watching movies or dvd's or
your probably overdriving your speakers. unit will detectand set overload when it gets hot or your speakers start to disort out. most amps is at full volume at half volume anyways
When i turn it on it shuts off 3 seconds later,
Generally speaking, an amp attempts to protect itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on; or it may turn on but produce no audio to the speakers.
Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; 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 'nekkid'. 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 and competent hands-on tech.
JVC RX-9010VBK receiver - premap section won't turn on normally
It sound like a bad connection. The first thing that I would do is tighten all the ground screws that hold the circiut boards and the heat sink to the chassis. If that doen't fix it, flex the circuit boards slighty to see if the relays chick on and off (disconnect the speakers first). It could be on the input board, on the relays themselves or just about anywhere.
Lost sound from all of
4 power surges and the receiver is still functional? Wow, that's a good quality one. Unfortunately the sound processor didn't survived and, since it's soldered on the mainboard directly, it can't be replaced. There's only one thing you can do - replace the mainboard. But i don't think it's worth it, for the same money you can buy a new one.
So either use it as is or replace it.
Automatic Shut-Off
It is important to know just what attemps have been made to repair the receiver. What parts have been replaced, who fixed it (a service center or a freind or yourself)? If it has a bad channel and if just one bad part was missed and not replaced, you can burn up all the parts that have just been replaced.
When a receiver shuts off seconds after turing it on, this is known as the protect mode. Most of the time is has a shorted output channel causing this. Sometimes it can be caused by a transistor in the protect circuit shorting out when the channel that is shorted goes bad. Even after repairing the bad channel, it will still go into protect if the protect transistor is bad and has not been replaced. Many times a bad channel can still have some components in it that are bad after it appears to have been repaired. This is were experience working with these type of circuits comes in handy.
Let me know exactly what has been done with full details and I may be able to help you locate the current problem.
Dave
JVC RX-9010V - Setting up Digital Inputs
Just to the left of the volume is a "settings" button. Press it and cycle through the options until you reach "Digital Coax," then use the "Control" up and down buttons to change the assigned source.
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