Phonoland

HI RON
I just picked up both of these boxes within the last two weeks the r84 only played full blast when i got it, the volume control seems to be the original, but i may swap that from the r86 as a test. i will double ck that shorting bar tonight to make sure its not on dual. you ask...<is the correct jumper installed on the "bad" pre-amp ?> by this do you meen the above mentioned shorting bar? or are you asking something else? the shorting bar is just a little rectangle 2 slot deal on both units. there is a some what local jukebox junkie that im told rebuilds thes amp units in the $100 price range, but i hat to have another chunk of $$ in vested in this unit. with moving the speaker whires on the transformer or what ever, i was able to get the volume down to a level where it can at least be played without blowing the windows outta the place..lol so if im cant figure something out on here, i may just live with it as is, unless some one on here can hook me up
withe a cheap working preamp board....... would the 4 football shape deals on the actual amp heatsink fins have anything to do with vol. control? just wondering
thanks again

No--the jumper is on the amp--or should be--$100.00 is "cheap" to do a re-build--leaving it run "as-is" could end up costing you much more--
No them thar "football shape deals" are output transistors--I think--
Ron Rich

hi ron
could you expand on what this jumper should be on the amp? whats it look like? and where should it be?

It's a 18 or so position, usually white, A-MP (brand) plug that sits in the pre-amp board, through the chassis, next to the heatsink.--If it's there, try turning it "over" as it will fit "both ways"---
Ron Rich

once again im not there to look at it, but i do seem to remember a white multi-pin plug that has a couple white wires that looped around to its self,,.. i guess that could be the jumper you speak of.? if so i will try fliping it over and see what i have..any idea what terminals should be looped together? is it safe to assume that they should be configured the same on my R-86? also have you ever run into a rowe/ami "SHOP MANUAL" ? there have been some referances to that on some other site (quite some time ago) stating this is differant than the field service manuel/parts guide that i have... this should have been something used by the repair tech, in the shop where more extensive repairs needed to be made that couldnt be performed out in the field
thanks

No idea--It varies with amp--and what you want to do with it--
Yes--I have some of the (expensive) "shop manuals". They provide little more then (a usually incorrect) schematic--Ron Rich

OK THANKS