Update and more info needed.
All caps including black flags replaced. All glue and corroded resistors replaced. All resistors checked for value and replaced if required. R36 and R37 not replaced right now but i have them here. Many transistors checked but not all.
My intention was to get the caps out then fire it back up, check both my work, how it sounds and to get some voltage numbers from it before going into phase 2.
It fired up last night! I left the mm amd equalization boards out as instructed and then instead of working on it til 2am, listened to it until 2am. Its only the second time i have heard it and WOW it never failed to impress. Sound imagining and stage was incredible. I ran cd's through it and was perfect. I ran mps through it and the ones i know that are well done sounded good but the regular ones sounded bad, which is good. the amp was able to show bad in, bad out.
Once i get some numbers and if they are good, the phono boards will go in, so i can see how they are. Then the unit will be completely disassembled again to get grounding mods and the variable resistors replaced. Also the speaker terminals replaced. I will be using the amp to listen to vinyle and my R2R.
Now for the questions/conformations,
With phono and equalizer boards out, flat amp adjusted first? meter connected to tp1 and ground then tp2 and ground adjust as required?
Then driver board? for the 0 volts do the speakers remain connected? and meter connected to both speaker posts? For bias exactly as in manual picture, between pins 19 and 20 i think on the little 3 pin connector, adjust as required.
Phono boards go in and for equalizer board between tp1 and ground on both boards, adjust as required then mm tp1 to ground on both boards, adjust as required.
Let me know what you think and correct me as required. Any tips and precautions other than dont get myself electricuted, is always welcome.
My sister has several au717's and the volume know has a detent click for each line on the faceplate, does the aux1 have that or not? Mine is not doing that and i am wondering if its normal.
Cheers,
Gord