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freestate
Joined: 04 Dec 2010 Posts: 2
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Posted: Sat Dec 04, 2010 9:19 pm Post subject: Help with diagnostics Yamaha HTR-5630 |
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Hello,
First post here, found the forum via Google.
I have a Yamaha HTR 5630 receiver I've been really happy with and recently its gone south. Powers off almost immediately after powering on (less than 1 second).
Was able to find a repair manual via this forum and discovered that there is a diagnostic mode for this receiver and using that I was able to enter and found out an apparent power supply issue.
I am not a repair technician and would just like some guidance with diagnosis or suggestions. I'm comfortable with soldering but am a cabinetmaker by trade so advanced electronics diagnosis isn't a strong suit.
FWIW here are the error codes I've found so far.
PS PRT 47% (apparently this means the error is on the AC side?)
DC 23% PS 14% (normal value PS: 28 to 47)
As far as where to go from here I'm lost in regards how to narrow down the issue. I plan on taking the cover off and blowing it out/cleaning checking for loose connections. I moved to Hawaii a couple years ago and the air is tough on electronics.
I can supply a .pdf of the manual if necessary. Hope I can save this receiver hate to trash it but realize its not an expensive or rare piece of equipment.
Thanks for any help. |
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vtech
Joined: 08 May 2006 Posts: 1264 Location: USA
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Posted: Sat Dec 04, 2010 11:12 pm Post subject: |
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You can certainly check for loose connection(s) inside or do the basics such as disconnecting speaker wire to see if it has any effect(very unlikely). It could be a problem in power supply or more likely in the power amp. While it may be a small component fault, without some basic troubleshooting knowledge & test equipment, it is definitely not something to try for the average user. |
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freestate
Joined: 04 Dec 2010 Posts: 2
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Posted: Sun Dec 05, 2010 2:37 am Post subject: |
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Thanks Vtech,
Yeah, cleaning and checking connections is more based on hope than remedy. But easy to do and cheap.
I only have a basic multimeter and realize that in depth diagnosis is probably beyond my skillset. I hoped that I might be able to narrow things down to a component or two I could either simply replace or at worst have to do some soldering.
I also have discovered that after I go into diagnostic mode and exit I am able to power up the receiver. But if I unplug I get the same fault when I try to power up. But maybe going into diagnostic disables the protection?
Any suggestions? Even possibly other repair forums I may not know about.
Frustrating knowing that it could be a simple fix and not be able to chase it. |
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Justmanuals
Joined: 21 Aug 2004 Posts: 1948
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jts1957
Joined: 24 Nov 2008 Posts: 2476 Location: Far, Far Away
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Posted: Sun Dec 05, 2010 1:03 pm Post subject: |
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Possibly sleep deprived? Or everyone needs two copies?
freestate wrote: | Was able to find a repair manual via this forum. ... I can supply a .pdf of the manual if necessary. | _________________ You're over there, I'm over here. |
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vtech
Joined: 08 May 2006 Posts: 1264 Location: USA
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Posted: Mon Dec 06, 2010 3:47 am Post subject: |
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freestate wrote: | Thanks Vtech,
Yeah, cleaning and checking connections is more based on hope than remedy. But easy to do and cheap.
I only have a basic multimeter and realize that in depth diagnosis is probably beyond my skillset. I hoped that I might be able to narrow things down to a component or two I could either simply replace or at worst have to do some soldering.
I also have discovered that after I go into diagnostic mode and exit I am able to power up the receiver. But if I unplug I get the same fault when I try to power up. But maybe going into diagnostic disables the protection?
Any suggestions? Even possibly other repair forums I may not know about.
Frustrating knowing that it could be a simple fix and not be able to chase it. |
Diagnostic mode does disable protection. You can start by measuring and verifying all the supply lines while in diagnostic mode. |
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