You will not find a download site for service manuals by Krell, only for owners manuals!
Krell just like Madrigal and many other high-end companies have strict policy to keep all things "secret" and charge crazy high fees for repair. Great if they go bankrupt.
🙄 🙄
..........crazy high fees for repair. Great if they go bankrupt...........like Thule Audio two years ago - have a look about
http://www.diyaudio.com/forums/solid-state/126352-what-happen-thule-audio.html
cdm3 vs the others, think the whole pickup. And with respect to read errors. So no "audio" related stuff, like hall vs brushed.
Hi gto127,
could you please trace the left channel signal path for CD on the DAC board of your Krell CD-DSP player?
I just finished repairing mine following your advice on replacing relais on DAC board.
However, only the right channel is active now when playing CD.
On the left DAC there is still no signal on the pin 7 ( all other pin signals are OK, and the voltage is there). Instead, the pin 7 always gets DC ( around 2.5 - 5 v as I remember), irregardless of Input position. I suspect there is a power leak there, although it is quite hard to guess in which part of the path from the relay RL1 ( which stays always cut in every signal position) to the processor path.
Your simple mesuarement in several places down the road would be of help to me. I already started to think that I probably cracked the board resoldering these sheety relais...
Thank you so much... Just managed to replace OAs to OPA627 as well...
AlexS
could you please trace the left channel signal path for CD on the DAC board of your Krell CD-DSP player?
I just finished repairing mine following your advice on replacing relais on DAC board.
However, only the right channel is active now when playing CD.
On the left DAC there is still no signal on the pin 7 ( all other pin signals are OK, and the voltage is there). Instead, the pin 7 always gets DC ( around 2.5 - 5 v as I remember), irregardless of Input position. I suspect there is a power leak there, although it is quite hard to guess in which part of the path from the relay RL1 ( which stays always cut in every signal position) to the processor path.
Your simple mesuarement in several places down the road would be of help to me. I already started to think that I probably cracked the board resoldering these sheety relais...
Thank you so much... Just managed to replace OAs to OPA627 as well...
AlexS
for description recapping project go to post #352 about
http://www.diyaudio.com/forums/parts/151392-best-electrolytic-capacitors-36.html#post2741758
http://www.diyaudio.com/forums/parts/151392-best-electrolytic-capacitors-36.html#post2741758
It sure sounds like you have some caps that have gone bad! at this age all the electrolytics should be replaced. that wont cost much in a CD player. just shotgunning all the caps could very will fix the problem.
who knows, how many pieces of this modell are manufactured ?
just like micromega SOLO hard to find.
just like micromega SOLO hard to find.
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