Question about Onkyo TX-SV373 Receiver
Our Onkyo keeps blowing fuses. It went out several years ago and we put it away on a shelf. Recently pulled it downt o try to fix it. Replaced a blown fuse and turned it back on and it immediately blew the fuse again. Any help available that you know of?
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Posted on Jan 02, 2017
SOURCE: amp keeps switching off
There is a problem with one or both of the audio amp circuits. The amp is going into a protect mode as to protect and save your speakers. Sorry but there is no simple fix. this will need to go to the shop to be diagnoised. Good Luck
Posted on Apr 29, 2007
SOURCE: ht-r500 onkyo
When a receiver does this, it is know as the "protect mode". This keeps the receiver from causing more damage to the components in it, by shutting it off when it detects an abnormal amount of voltage or current.
If you had to replace the fuses, it is most likely that you have a blown channel in the receiver.
You put 8 amp fuses in, so I hope that the fuses that blew were 8 amps as well. If you put fuses in that are higher rated in amps than the ones that blew, you will most likely cause more damage to the unit than need be. If the fuses keep blowing, please stop putting new fuses in again until the unit is repaired. Every time a fuse blows, it is because of too much current is going thru the unit. Having too much current is a very bad thing for electronics, it causes components to short out and sometimes even catch fire if the fuse is higher rated than it is supposed to be.
To find out just what parts will need to be replaced, you need a multimeter and then you will need soldering tools to remove the bad parts and put the new ones in.
When an amplifier channel gets blown, there are normally around 5 to 10 parts that will need to be replaced. If you do not replace every single bad part in the channel that has blown, you will most times blow up all the new parts that you just put in.
If you have no experience with electronics, you really should take it in to a service center for repair. If you are willing to try it yourself, let me know and I will guide you thru the troubleshooting steps to help you identify all the faulty components.
Onkyo is very well made equipment and is worth getting fixed.
A blown channel can normally be repaired for around $100 to $150, just depending on the shops rates and the extent of the damage.
Let me know if you need more help.
Posted on Jul 27, 2008
SOURCE: yes i have an ONKYO
Yes it is fixable, the parts are available. The cost can vary, depending on the rates of the shop you take it to and the actual amount of damage that it has.
On average, a blown channel in a receiver will cost anywhere between $120 and $200, most of which are around the middle of that amount. I would expect to pay about $150. This is a very good receiver and is well worth the repair cost in most cases. Almost all service centers will give you an estimate before you commit to paying for a repair. If it is a free estimate, it is usually just a free guess. A paid estimate is always more accurate and will normally save you money in the long run. The reason for that is, if a shop owner gives a free estimate he is not going to have one of his technicians look at it and troubleshoot it. If you refuse the estimate he still must pay his technician if the technician has looked at it. A paid estimate will ensure the lowest cost because it will be more accurate. Free estimates are almost always a higher estimate to make sure they can cover the cost no matter what is wrong. Even if they find something small, they will usually charge you the full estimate that you have approved already. With a paid estimate they do not want to loose the job after committing the technicians time to find out what is wrong. Figuring out what is wrong is more than half the battle. Sometimes a technician must actually fix the problem completely just to be sure there is nothing else wrong and that the estimate will be good. Nobody likes to get an estimate and approve it, then a day or two later get a new estimate because they found something else wrong that they could not detect until the other part of the problem was fixed. It happens all the time, I have been a technician for over 18 years and have seen just about everything. The bottom line is, a paid estimate is better than a free estimate. Plus, when you pay for an estimate the shop will apply that payment towards the total repair cost, so in the end it is a free estimate if you get the unit fixed.
Posted on Nov 11, 2008
SOURCE: i have a onkyo HT-R500
A receiver that recent usually has a detect circuit that keeps the outputs off until speakers are connected . So, if it bows fuses right away , it's really a power supply issue.
Probably the AC rectifier bridge.
Tech service only.
Posted on Jan 01, 2009
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