it's almost a crime that this was relegated to a storage unit for so many years. This was one of the best integrated amplifiers of it's day with absurd build quality. The entire G10 line was a true feat of engineering by Onkyo and deserves to be played and enjoyed for years and never relegated to "storage".

Nice to see you again :-)

If everything is floating at V+, I would guess you've lost the ground on that circuit board. The bodged wiring does go to an earth tag amongst other places, so that's what I would be looking at.

I once had a problem with the voltages being way of spec in a amplifier which was caused by a missing ground.

You have an amazing crib. I assume the amp to be class A, I'd shunt the input of power stage first, bypassing volume control, preamp and all to isolate that stage to see if the problem lies in power amp stage. That's a beautiful beast

Massive capacitor values for the power supply! Sounds like the transistors are not being biased. Has the drivers failed. Also check fusible resistors.

Hi Max, did you ever get hold of a schematic? I also have an A-G10 which is in need of repair. I have the original remote control which motor drives the volume control and also offers phase inversion, regards Rowan

netzteil hast du wohl gecheckt das beide schienen (positive und negative betriebsspanung der endstufe) da sind? hat da vielleicht jemand am massepotential gebastelt (mit den schwarzen, evtl. nicht originalen, kabeln?? sehr merkwürdig wenn an allen 3 pins exakt die gleiche spannung ist; oder gibt es minimale unterschiede?? ich hoffe du bekommst diesen sehr schönen verstärker wieder hin und er klingt dann auch gut (nicht so oft der fall bei japanischen meiner meinung nach :P ).

Correct I need this amp badly

I have already repaired several A-8990 the big problem on these amps are the power capacitors that are hs and that causes random ploq on the channels when its does not degage them outright

Wann kommt part 2?

At 4:20 on time the fuses you show, we'll one of them is blown I can see in the video that the right one from your finger the metal thread is split inside the fuse.

Einfach aus Neugier: bist du weitergekommen und konntest das wunderbare Teil retten?

Is there anyone who might possible have a spare or be able to mold a copy of the battery compartment cover for the A-G10 remote control. I have been using one of these for my home theater and the remote has had its batteries falling out since I inherited the thing from my grandparents XD

Prehaps input stage failed, or maybe output stage driver?

Did you find the problem with the amplifier? I got the manual with full schematics.

not grounded. service manual will tell where all the grounds are

IT FOR SALE

I want the luxman amp!

die fehler bei denen nix verbrannt oder explodiert ist, sind immer blöd zu finden :P

Can a person by items from you

Был в ремонте такой. была неисправна микросхема мотороловская в одном канале

Please don´t do anything on this amp if you don´t have skill and knowledge to repair it. Send it to someone who have a lost of experience before you do some more damage.