Re: My Rotel RB-1080 lest channel died
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Joined: Jul 2004
Posts: 4,444 Likes: 16
connoisseur
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OP
connoisseur
Joined: Jul 2004
Posts: 4,444 Likes: 16 |
Some kind of junction for the four round things under it, I reckon. I haven't a clue what 98% of the stuff inside this thing is..... Sure is built stout though. Nothing flimsy or cheap in this sucker.
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Re: My Rotel RB-1080 lest channel died
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Joined: Jan 2011
Posts: 1,291
connoisseur
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connoisseur
Joined: Jan 2011
Posts: 1,291 |
the round things are large capacitors, and the plate on top seems to be connectors (+ -)
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Re: My Rotel RB-1080 lest channel died
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Joined: Jun 2003
Posts: 6,833
axiomite
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axiomite
Joined: Jun 2003
Posts: 6,833 |
Is it back in service Mike?
Rick
"A fear of weapons is a sign of retarded sexual and emotional maturity." Sigmund Freud
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Re: My Rotel RB-1080 lest channel died
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Joined: Sep 2004
Posts: 5,422
axiomite
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axiomite
Joined: Sep 2004
Posts: 5,422 |
You are forgetting to add the Rotel to your Rotel... That will fix everything. I would stay away from the HOT one though as it can cause overheating.
Farewell - June 4, 2020
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Re: My Rotel RB-1080 lest channel died
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Joined: Jan 2007
Posts: 10,490 Likes: 116
shareholder in the making
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shareholder in the making
Joined: Jan 2007
Posts: 10,490 Likes: 116 |
Silly me. I didn't see the caps underneath the plate.
House of the Rising Sone Out in the mid or far field Dedicated mid-woofers are over-rated
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Re: My Rotel RB-1080 lest channel died
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Joined: Jul 2004
Posts: 4,444 Likes: 16
connoisseur
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OP
connoisseur
Joined: Jul 2004
Posts: 4,444 Likes: 16 |
Is it back in service Mike?
Need to find a fuse. Work and all keeps interfering with my business hours shopping....
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Re: My Rotel RB-1080 lest channel died
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Joined: Jul 2005
Posts: 738
aficionado
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aficionado
Joined: Jul 2005
Posts: 738 |
I think you can buy them online. Here are some "high end" fuses. Supposed to make a difference. Not in a million years will I believe that a fuse will improve the sound of your system, but hey, some people sware by them. www.element-acoustics.ca/products.php?cid=7&sid=25
paul
Axiom M80, VP180, Qs8, EP500 Epson 3020 Rotel RB-880 Denon AVR-990
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Re: My Rotel RB-1080 lest channel died
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Joined: Dec 2001
Posts: 334 Likes: 5
Axiom Engineer devotee
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Axiom Engineer devotee
Joined: Dec 2001
Posts: 334 Likes: 5 |
It is a fuse... I can't find anything that looks like it got hot. No burnt smell anywhere. I need to find a fuse now. Fuse holder is to the left and above of where it is standing on end. Michael, can you take a close-up of one of those blue capacitors (the big cylinders) on the amp board? In your second photo it looks like there is some black stuff where it meets the PCB. Rotel, or more likely their 3rd party manufacturer, used a corrosive glue under these capacitors which will leech out over time and start to damage the parts around them. The blown fuse might suggest that some corrective action is required.
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Re: My Rotel RB-1080 lest channel died
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Joined: Dec 2001
Posts: 334 Likes: 5
Axiom Engineer devotee
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Axiom Engineer devotee
Joined: Dec 2001
Posts: 334 Likes: 5 |
What's that gold plate in the middle? That gold plate is likely a piece of plated copper. It is the central "star" ground point for the amplifier, and all ground returns (transformer centre-tap, safety earth, main power supply capacitors, amplifier PCB, input stage PCB, speaker negatives) will all connect to this bus plate.
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Re: My Rotel RB-1080 lest channel died
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Joined: Jan 2007
Posts: 10,490 Likes: 116
shareholder in the making
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shareholder in the making
Joined: Jan 2007
Posts: 10,490 Likes: 116 |
What's that gold plate in the middle? That gold plate is likely a piece of plated copper. It is the central "star" ground point for the amplifier, and all ground returns (transformer centre-tap, safety earth, main power supply capacitors, amplifier PCB, input stage PCB, speaker negatives) will all connect to this bus plate. Indeed. It must be nice not to have to worry about fast transients, surges and ring waves on I/O in audio. Then you can get away with a pseudo star ground.
House of the Rising Sone Out in the mid or far field Dedicated mid-woofers are over-rated
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