I have a Rotel RB-1562 which uses two of these modules and one is quieter than the other.
Has anyone encountered this problem before?
Has anyone encountered this problem before?
If you've got two, you should be able to confirm (carefully!) and compare various voltages at the various connectors first.
These boards are only ~£100 to replace, so maybe bear that in mind before spending excess time on it.
These boards are only ~£100 to replace, so maybe bear that in mind before spending excess time on it.
Yeah, I could compare voltages but there's not a lot I can check other than supply rails and low volume is unlikely to be related to that.
I emailed the agent earlier today to see if they can supply replacement boards as I really don't want to try to repair this one - it's class D and multi-layer with SMD.
I emailed the agent earlier today to see if they can supply replacement boards as I really don't want to try to repair this one - it's class D and multi-layer with SMD.
You never know , it might reveal a problem somewhere, or actually confirm where the problem is precisely.
At the least I'd swap boards over to ensure you've not missed something obvious in the power supply or other internal wiring.
I'm not saying it's not possible but these Class D modules either work or they stop.
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These modules have onboard power supplies so swapping them over wouldn't achieve a lot.
The difficulty is without a schematic it is difficult to know what I am looking at.
I don't recognize most of the SMD ICs on the board, as SMD-based equipment is something I don't normally work on. I can, but generally choose not to.
I was just hoping someone had encountered this fault before and knew exactly which component was at fault. If it was a relatively easy fix I would do it, otherwise I will look at replacing the board.
I note your comment about them being available for £100 - I'm in NZ and our dollar isn't as strong as the pound so they will be more expensive, simply because they have to be imported (and freight costs have skyrocketed).
The difficulty is without a schematic it is difficult to know what I am looking at.
I don't recognize most of the SMD ICs on the board, as SMD-based equipment is something I don't normally work on. I can, but generally choose not to.
I was just hoping someone had encountered this fault before and knew exactly which component was at fault. If it was a relatively easy fix I would do it, otherwise I will look at replacing the board.
I note your comment about them being available for £100 - I'm in NZ and our dollar isn't as strong as the pound so they will be more expensive, simply because they have to be imported (and freight costs have skyrocketed).
