I have a Grant Fidelity TubeDAC-11 and about a year ago the DAC portion of the amp stopped working. I remember hearing a subtle pop and that was that, no more audio coming out of the amp. It happened at the same time my wife stepped on the USB cable going from my laptop to the DAC but that could just be a coincidence. Everything else still appears to work, the analog in passes the signal through the amp just fine, so I am guessing a chip died. My question is it possible for me to replace the DAC chip on my own? Could it be a different chip that needs to be replaced? If it is at all possible, I'd like to give it a try, it bothers me that this DAC is going unused. I don't have a heat gun but I've watched a few YouTube videos that show how to remove and replace a chip using a lot of flux and a soldering gun, they even make it look easy (ha!). Also, I can't find a schematic anywhere.
Am I wasting my time with this?
Thanks in advance for any advice anyone might have for me!
-Brian
Here's a photo of the board. I can take more and better pics if they would be helpful.
Am I wasting my time with this?
Thanks in advance for any advice anyone might have for me!
-Brian
Here's a photo of the board. I can take more and better pics if they would be helpful.
I've got a B&K 1477 oscilloscope that I haven't used yet but this would be a great time to learn to use it.
Saw a Grant Fidelity flysheet that shows all three digital inputs routed to a selector and then to a SPDIF receiver. That might a place to start i.e is there anything reaching the receiver. YFBADXAR0421 = CS8416.
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I’m about to put in an order at Mouser for a project I’m working on (Carver C-1 preamp BillD mod) and I will add the CS8416 to the order of it makes sense to just replace it. It there a way to test it to see if it is bad? I’ve never worked with these kinds of parts before.
Possibly some reading info to help with good scope probing technique: https://download.tek.com/document/02_ABCs-of-Probes-Primer.pdf