Previous Thread
Next Thread
Print Thread
Rate Thread
Page 1 of 5 1 2 3 4 5
My Rotel RB-1080 lest channel died
#413749 07/27/15 01:14 PM
Joined: Jul 2004
Posts: 4,280
Likes: 3
M
connoisseur
OP Offline
connoisseur
M
Joined: Jul 2004
Posts: 4,280
Likes: 3

I've had this amp for about 12 years now. Never a problem. Noticed yesterday the left speaker was silent. It's definitely the amp, and not the speaker or pre-amp output.

Thought I might tear the sucker open and look around a bit. Hoping something obvious jumps out at me. I'm not an electronics tech, but I can follow a logic drawing, use a Fluke, and solder.

Any tips, or suggestions before I start the autopsy? My options for electronics repair are quite limited. Shipping costs would be as much as buying a refurbished unit, I suspect..

Re: My Rotel RB-1080 lest channel died
michael_d #413750 07/27/15 05:24 PM
Joined: Dec 2001
Posts: 325
Likes: 2
Axiom Engineer
devotee
Offline
Axiom Engineer
devotee
Joined: Dec 2001
Posts: 325
Likes: 2
Hi Michael,

The first thing to do is to remove the top panel and inspect the two fuses on the main amp board of the channel that is not working. You will probably find that one or both of these fuses are bad. Unfortunately when the 1080 starts blowing fuses it is usually an indication of other issues that will cause the fuses to blow again in time. That would probably require a trip to a service depot, unless you are handy with a soldering iron?

Thanks,

Andrew

Re: My Rotel RB-1080 lest channel died
michael_d #413751 07/27/15 07:43 PM
Joined: Jul 2004
Posts: 4,280
Likes: 3
M
connoisseur
OP Offline
connoisseur
M
Joined: Jul 2004
Posts: 4,280
Likes: 3
Thanks Andrew! I am pretty handy with an iron, if I know what to replace. I'll open up the case and look for fuses. I have nothing to lose at this point.

Re: My Rotel RB-1080 lest channel died
michael_d #413759 07/28/15 01:03 AM
Joined: Jul 2009
Posts: 2,281
connoisseur
Offline
connoisseur
Joined: Jul 2009
Posts: 2,281
Originally Posted By michael_d
Thanks Andrew! I am pretty handy with an iron, if I know what to replace. I'll open up the case and look for fuses. I have nothing to lose at this point.


Sometimes the real problem is acquiring the needed parts. Failing any blown fuses look for caps that are leaking or bulged and use you nose, sniff around for anything that smells like melted plastic. Take some pics and upload them if you cant see anything. When I fixed my plasma the culprit was hiding under a heatsink but I sniffed er out bye.


DOG is GOD spelled backwards.
What others think of me is none of my business.
M80 V3 MY GLOSS Cherry
Re: My Rotel RB-1080 lest channel died
michael_d #413760 07/28/15 01:03 AM
Joined: Jun 2003
Posts: 6,832
W
Wid Offline
axiomite
Offline
axiomite
W
Joined: Jun 2003
Posts: 6,832

Oh no, say it isn't so. A bunch of us got them about the same time.


Rick


"A fear of weapons is a sign of retarded sexual and emotional maturity." Sigmund Freud

Re: My Rotel RB-1080 lest channel died
michael_d #413762 07/28/15 02:29 AM
Joined: Jul 2004
Posts: 4,280
Likes: 3
M
connoisseur
OP Offline
connoisseur
M
Joined: Jul 2004
Posts: 4,280
Likes: 3
I will post up what I find. It just stopped working Rick. Mellow, background music. I haven't been cranking the tunes for months, maybe that's why? She's mad at me....

Re: My Rotel RB-1080 lest channel died
michael_d #413830 08/01/15 02:41 AM
Joined: Jun 2003
Posts: 6,832
W
Wid Offline
axiomite
Offline
axiomite
W
Joined: Jun 2003
Posts: 6,832

Any news Mike?


Rick


"A fear of weapons is a sign of retarded sexual and emotional maturity." Sigmund Freud

Re: My Rotel RB-1080 lest channel died
michael_d #413833 08/01/15 02:52 PM
Joined: Jul 2004
Posts: 4,280
Likes: 3
M
connoisseur
OP Offline
connoisseur
M
Joined: Jul 2004
Posts: 4,280
Likes: 3
Not yet, no... Taking advantage of an unusual stretch of sunny days here. I just bypassed the 1080 and am using the Denon 3808 for double duty now.

Re: My Rotel RB-1080 lest channel died
michael_d #413997 08/09/15 09:03 PM
Joined: Jul 2004
Posts: 4,280
Likes: 3
M
connoisseur
OP Offline
connoisseur
M
Joined: Jul 2004
Posts: 4,280
Likes: 3
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.



Re: My Rotel RB-1080 lest channel died
michael_d #414003 08/10/15 02:08 AM
Joined: Jan 2007
Posts: 7,892
Likes: 12
M
axiomite
Online Content
axiomite
M
Joined: Jan 2007
Posts: 7,892
Likes: 12
What's that gold plate in the middle?


v2tov4
A-LFR/1000-8&2,500x2
1000&1500-3
100,160,QS10,800,M2/3/5/50
N2,N3
Audiobytes
A-LFR1500 coming
Page 1 of 5 1 2 3 4 5

Moderated by  alan, Amie, Andrew, axiomadmin, Brent, Debbie, Ian, Jc 

Link Copied to Clipboard

Need Help Graphic

Forum Statistics
Forums16
Topics24,436
Posts433,062
Members15,428
Most Online2,082
Jan 22nd, 2020
Top Posters
Ken.C 18,044
pmbuko 16,437
SirQuack 13,694
CV 11,828
MarkSJohnson 11,451
Who's Online Now
0 members (), 182 guests, and 3 robots.
Key: Admin, Global Mod, Mod
Newsletter Signup
Powered by UBB.threads™ PHP Forum Software 7.7.4