My purchased-new Ah! Njoe Tjoeb 4000 has suddenly gone inop (hasn't been used for a few months, in a cool, dry-enough enivorment, but has always worked perfeclty fine up through the last time I ran it late last year.). It powers up, spins, plays, but nothing comes out from the analogue output (a very faint hum when the pre amp is cranked). I have not tried the digital out yet as I have the upsampler board and reportedly there is no digital out with that board present.
I will try to remove the upsampler board (matter of putting in DAC(?) chips where 1 is different from the other 2 (all 3 8 pin) so I will have to figure out which goes where., and see if it works with digital out.
The fuse mentioned in other forums/threads has continuity and the power relay is working. I don't have any spare 6DJ8 tubes handy but both are warming up and I would imagine the likelihood that both suddenly blew is unlikely.
None of the myriad of caps are bulging. The previous 99 CD was supposed to have leaking caps.
Any hints, or a service manual? Ah! appears to have gone out of business years ago.
TIA
I will try to remove the upsampler board (matter of putting in DAC(?) chips where 1 is different from the other 2 (all 3 8 pin) so I will have to figure out which goes where., and see if it works with digital out.
The fuse mentioned in other forums/threads has continuity and the power relay is working. I don't have any spare 6DJ8 tubes handy but both are warming up and I would imagine the likelihood that both suddenly blew is unlikely.
None of the myriad of caps are bulging. The previous 99 CD was supposed to have leaking caps.
Any hints, or a service manual? Ah! appears to have gone out of business years ago.
TIA