Someone posted a concern about how shops are supposed to service Carver equipment without the original parts. I think that really deserves an answer as it seems to suggest that proper repairs are not possible otherwise. This would be incorrect.
Most parts used in Carver equipment are standard, off the shelf parts. Semiconductors and resistors are easy, most capacitors are normal stock items. That leaves some filter capacitors as difficult to find - and that's true. Forget finding exact replacements. Luckily, there are often filter capacitors that are close enough. Mag coils seldom fail, but were the most requested part by outside shops. So beware if you have an estimate that includes this transformer. The tech had better have a clear explaination for this. Ask here if in doubt.
There was a period in Canada when Carver parts didn't arrive like they used to. As a result, we became pretty good at sourcing these from the normal supply chain.
So, unless you need cosmetic parts, or you really need a transformer / mag coil or off filter capacitor, all the listed service depots are capable of making a perfect, factory acceptable repair. The only other questionable thing then might be workmanship, but anyone who was authorized warranty should be capable of doing excellent work. We had to close many Canadian service shops simply due to this. Most of those were dealer service - no surprise there.
One more point I'd like to make. Under warranty we were not allowed to "improve" the performance of any equipment. Even out of warranty, we had to return the equipment to factory configuration. There are very good reasons for this, and it has nothing to do with hiding anything or being "cheap". Now that I've been out of the warranty field for some time, the mindset can change slightly. Make no mistake that doing warranty work does create a mindset, or approach to making a repair. For something that's broken, I still recommend that it be brought back to working factory trim unless changes are minor and do not affect the operation. Only then can you consider making "improvements". I do redesign certain aspects of audio equipment now, but understand that I have created a service bench that includes extremely good equipment (mostly HP / Agilent) and I also use a spectrum analyzer as well. If you are changing anything, you must test the equipment with the changes into various loads and conditions, and also get a clear picture of it's response. Distortion analyzers (I use an HP 339A), good 'scopes and other equipment is the only way to assess the unit is working properly again. This is not only true of CD players and tuners, but also of power amplifiers. So make sure that anyone "tweaking" your equipment has the ability to really check the effects of their changes.
I only mention this because the amount of "hacked" equipment I see coming in is still on the rise. This only increases the cost of repair, and being honest about what was done will save you money. Don't pay someone to discover what you can tell them. Seems like common sense, but many people are embarrassed and want to hide bad decisions. The goal is to fix your equipment reliably, so please disclose anything you know, even if you are the one making changes.