I'm hoping to troubleshoot this amp for my son. Fender Deluxe Reverb Reissue in very nice condition cosmetically. My son was given this, as it was not working.
The first thing I noticed was that the speaker's fiber (cardboard?) wire connector tab was popped off its rivet. That may have meant issues with speaker noise and malfunction. I happened to have a replacement speaker and put that in. Fingers crossed, I was hoping I was good to go, but...
Powered up, switched standby switch to ON and NOISE! Static, scratchy not-good-sounding noise (all controls knobs at 1). Switched off using either power or standby. I did this a few times. At one point, I removed the electronics assembly and used deoxy to clean the control pots, thinking it might be dirty pots. Tried again and got the same noise. I then, meaning to switch standby off, inadvertently switched power off first, and then the fuse blew.
I read up on troubleshooting this issue and saw that I could insert tubes one by one, powering down between each tube insertion, to see if a bad tube might be causing these issues. I went another route: inserted preamp tubes and powered up, but did not switch standby to ON. No issues. I then put in the power tubes and did the same: power on, but kept in standby; again, no issues. I then, finally, installed the rectifier tube and powered up - no issues.
Note that I did not switch the standby switch to ON during any of this. I thought the fuse might blow with all tubes in, power on and standby in standby mode (as noted, it didn't).
Where do I go from here? I guess I'm afraid to switch standby to ON before knowing more about whether or not I'm heading in the right direction. Time for a tech? This was a gift (albeit a "broken" one), and I wasn't prepared to dump money into it without first seeing if I could DIY.
Ian SF Bay Area