I should have it by mid-next week so we'll see what condition it's in. Do you have a pic of the 2600 input board, I can see from the manual it's a different spec from late model 2200s I have. 8 capacitors have been added. Does it need any mods?
I got the 2600 today, removed top/bottom covers and all looks good. Interesting that they put the 100v 47uF caps (c301-304) on the bottom of the PCB. Needed to adjust the DC channel balance but the bias was within spec. Been listening to it for a couple of hours now and so far no issues with the relays or the front panel level pots so I guess I lucked out! I bought pots for it with my last Mouser order so will be replacing them tomorrow then I'll use it while recapping the 2200s. After that, it'll get new relays and electrolytics.
C301-304 were the first ones I did on a 2200 last nite so agree about the HEs. The cans are narrower but taller than OE Rubycons though I had to lean them over for some clearance from an adjacent axial resistor spaced above the PCB, presumably because it gets warm. On the right front of the 2600, the c302 pad is beneath the level pot board but it looks high enough to not interfere when installed though those resistors still need some clearance.
I was pretty sure that'd be necessary but feel more comfortable knowing your experience. The first 2200 was easier for some reason, but the "stuff" securing the bottom of the caps was black/brittle and that's not the case with this 2200. Guessing the first one was used in a warmer environment so it got a little "cooked."
Nevermind...It was a "brain" issue on my part. Been working on too many PCs lately. I was using the bottom of the PCB as a reference point to mark which pins to desolder so upside down, DUH!! I should have checked it against one of the old already removed relays but was too tired (or maybe stupid) yesterday but did that this morning and it's OK.
I'm doing MUCH better today...got the relays done on the 2600! I took the front panel off too because the glue holding the inner part had given up so it will need to be redone. While at it I hit the front level pots with contact cleaner and DeOxIT. I see there's a low leakage 25v 4.7uF polar and a pair of non-polar 25v 10uF electrolytics on the level board. I'm thinking it wouldn't be a bad idea to replace them. Have you done those on the 2600s you've worked on?
