Theater receiver blew, what are my options with this thing??

O_ROD · 13th September 2007, 08:58 PM

hey guys, after a recent lightning storm my Yamaha HTR-5640 decided to stop working! Well, the unit powers on and I can scroll through all the options, just I can't get any sound out of the unit.

Is there a way I can repair/replace the damaged parts. What am I looking for that can be damaged? I checked both fuses inside and there fine. What does lightning usually blow?

Please guys, I don't have money to replace it and the sound without this thing blows, any help will be much appreciated, thanks.

ak_47_boy · 13th September 2007, 09:06 PM

I don't know much about newer electronics but i would look for the surface mount part with the smallest pins, this is probably what is blown. I think fets are sensitive to voltage also.

O_ROD · 13th September 2007, 09:10 PM

So your saying it's most likely the thing with the smaller contact points?

What are the chances that the problem is visible and not internal?

dangus · 17th September 2007, 02:13 AM

Can you verify whether any sound goes through it at all, like to the tape monitor or preamp, sub or headphone outputs? If those work, it might just be an output protection relay that isn't operating. That isn't necessarily trivial to fix, but more doable than troubleshooting some surface-mount DSP surround processor brain chip.

I'm afraid your best bet would be to sell it as-is on eBay for whatever you can get, then hunt around for a cheap replacement.

O_ROD · 19th September 2007, 09:39 PM

nothing on it works, sub outputs, tape, nothing... I don't think I'm going to bother Ebaying it, just shoot it in the garbage

DonoMan · 20th September 2007, 12:14 PM

Use it as an excuse to get your wife (or your budget-minded conscience, in the event that you don't have a wife) to give you the OK on an (expensive) upgrade

O_ROD · 20th September 2007, 09:18 PM

lol, I just bought a second car "summer toy", pretty sure she'll have my left nut if I ask for a new receiver too!

Nordic · 20th September 2007, 09:26 PM

Keep the case incase you evr do decide to try some DIY... the box, transformers and heatsinks alone should be worth a few bucks....

I didn't know I became such a scrounger, but my heart almost leapt out of my chest when you said you were going to trash it.

O_ROD · 21st September 2007, 04:51 AM

I see your point. I really don't want to shoot it out, but I don't have much experience with this kind of stuff. It's depressing seeing it sitting here, along with my entire theater out of commision! I'm scrunging ebay for a cheap replacement now.

I just made a small cd set up using an old playstation, behringer FD pro and my QSC MX 700 amp to tide me over a lil while

eyedoc · 21st September 2007, 07:36 PM

do we really need our left nut anyway?!?!?!

13th September 2007, 08:58 PM	#1
O_ROD diyAudio Member Join Date: Jan 2007 Location: Ontario	Theater receiver blew, what are my options with this thing?? hey guys, after a recent lightning storm my Yamaha HTR-5640 decided to stop working! Well, the unit powers on and I can scroll through all the options, just I can't get any sound out of the unit. Is there a way I can repair/replace the damaged parts. What am I looking for that can be damaged? I checked both fuses inside and there fine. What does lightning usually blow? Please guys, I don't have money to replace it and the sound without this thing blows, any help will be much appreciated, thanks.

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13th September 2007, 09:06 PM	#2
ak_47_boy diyAudio Member Join Date: Sep 2006	I don't know much about newer electronics but i would look for the surface mount part with the smallest pins, this is probably what is blown. I think fets are sensitive to voltage also.

13th September 2007, 09:10 PM	#3
O_ROD diyAudio Member Join Date: Jan 2007 Location: Ontario	So your saying it's most likely the thing with the smaller contact points? What are the chances that the problem is visible and not internal?

17th September 2007, 02:13 AM	#4
dangus diyAudio Member Join Date: May 2004 Location: Vancouver Island	Can you verify whether any sound goes through it at all, like to the tape monitor or preamp, sub or headphone outputs? If those work, it might just be an output protection relay that isn't operating. That isn't necessarily trivial to fix, but more doable than troubleshooting some surface-mount DSP surround processor brain chip. I'm afraid your best bet would be to sell it as-is on eBay for whatever you can get, then hunt around for a cheap replacement.

19th September 2007, 09:39 PM	#5
O_ROD diyAudio Member Join Date: Jan 2007 Location: Ontario	nothing on it works, sub outputs, tape, nothing... I don't think I'm going to bother Ebaying it, just shoot it in the garbage

20th September 2007, 12:14 PM	#6
DonoMan diyAudio Member Join Date: Feb 2005 Location: Massachusetts	Use it as an excuse to get your wife (or your budget-minded conscience, in the event that you don't have a wife) to give you the OK on an (expensive) upgrade

20th September 2007, 09:18 PM	#7
O_ROD diyAudio Member Join Date: Jan 2007 Location: Ontario	lol, I just bought a second car "summer toy", pretty sure she'll have my left nut if I ask for a new receiver too!

20th September 2007, 09:26 PM	#8
Nordic diyAudio Member Join Date: Sep 2005	Keep the case incase you evr do decide to try some DIY... the box, transformers and heatsinks alone should be worth a few bucks.... I didn't know I became such a scrounger, but my heart almost leapt out of my chest when you said you were going to trash it.

21st September 2007, 04:51 AM	#9
O_ROD diyAudio Member Join Date: Jan 2007 Location: Ontario	I see your point. I really don't want to shoot it out, but I don't have much experience with this kind of stuff. It's depressing seeing it sitting here, along with my entire theater out of commision! I'm scrunging ebay for a cheap replacement now. I just made a small cd set up using an old playstation, behringer FD pro and my QSC MX 700 amp to tide me over a lil while

21st September 2007, 07:36 PM	#10
eyedoc diyAudio Member Join Date: Aug 2006	do we really need our left nut anyway?!?!?!

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