upsampling clock
Hi,
I plan to remove the 24 MHz oscilator (1101) and feed in external clock instead.
Would someone like to answer the following questions:
What are the two condensators to ground for the oscilator? 2610 seems clear, but the other?
Is the clock signal amplified by an OP amp?
Which pole is going to clock-in of the upsampling chip?
Safier,
For my taste the granite block is a bit to clumpsy, I think a plywood board dampened with the famous "plastic-ferrit" wouldn't be that heavy and additionally dampen the drive noises.
I thought of putting the bottom of the player on a plywood board (or granite ;-) with a layer of "plastic-ferrit" inbetween for full contact. the board could be fixed with the srews of the feet.
Regards
stephanr
Hi,
I plan to remove the 24 MHz oscilator (1101) and feed in external clock instead.
Would someone like to answer the following questions:
What are the two condensators to ground for the oscilator? 2610 seems clear, but the other?
Is the clock signal amplified by an OP amp?
Which pole is going to clock-in of the upsampling chip?
An externally hosted image should be here but it was not working when we last tested it.
Safier,
For my taste the granite block is a bit to clumpsy, I think a plywood board dampened with the famous "plastic-ferrit" wouldn't be that heavy and additionally dampen the drive noises.
I thought of putting the bottom of the player on a plywood board (or granite ;-) with a layer of "plastic-ferrit" inbetween for full contact. the board could be fixed with the srews of the feet.
Regards
stephanr
Re: upsampling clock
Stephan
The 24.576 MHz clock only feeds the CD upsampler
regards
reins said:
Stephan
The 24.576 MHz clock only feeds the CD upsampler
regards
Re: Re: upsampling clock
Hi Guido,
exactly that was my intention. Because the upsampler works asynchronous, the clock before shouldn't matter and as I use an external DAC, the DAC mustn't extract the clock from the SP/DIF signal and could rely an the more stable internal clock.
Or have I missed a bit?
Regards
stephanr
Guido Tent said:
Hi Guido,
exactly that was my intention. Because the upsampler works asynchronous, the clock before shouldn't matter and as I use an external DAC, the DAC mustn't extract the clock from the SP/DIF signal and could rely an the more stable internal clock.
Or have I missed a bit?
Regards
stephanr
Re: Re: Re: upsampling clock
Hi Stephan,
Substituting the upsampling clock does not affect the SPDIF output. The upsampler works on the internal DAC, as far as I can understand the 963 architecture
By the way, my power supply upgrade and clock will very soon be available
reins said:
Hi Stephan,
Substituting the upsampling clock does not affect the SPDIF output. The upsampler works on the internal DAC, as far as I can understand the 963 architecture
By the way, my power supply upgrade and clock will very soon be available
Bybee purifiers
Yesterday the Bybee Slipstream purifier came in, I soldered in the 963SA at the AC live tap to the SMPS (upgraded).
If I find these Slipstreams unsatisfying, I can send it back for a fully refund. This was the reason I tried this Slipstream, I could not believe the findings of this device on the net.
But after switching the player on and feeding it with the first (well known CD) I could not believe what it did to the sound. It's much better than the upgrade with the BG's, or probably the upgrades enhance eachother, I don't know yet.
The player has been redefined. This comes very close to top analog music reproduction.
Still to do:
the linear PSU (already soldered together, but still not integrated in to the 963SA),
and
more experimenting with damping vibrations, StephanR, would like to read some more of your findings on this topic.
the clock upgrade from Guido. Can't wait .
Guido,
I'll see you April 17th on the Dutch DIY day. Will you bring your modified 963SA to demonstrate?
Regards,
Saffier
Yesterday the Bybee Slipstream purifier came in, I soldered in the 963SA at the AC live tap to the SMPS (upgraded).
If I find these Slipstreams unsatisfying, I can send it back for a fully refund. This was the reason I tried this Slipstream, I could not believe the findings of this device on the net.
But after switching the player on and feeding it with the first (well known CD) I could not believe what it did to the sound. It's much better than the upgrade with the BG's, or probably the upgrades enhance eachother, I don't know yet.
The player has been redefined. This comes very close to top analog music reproduction.
Still to do:
the linear PSU (already soldered together, but still not integrated in to the 963SA),
and
more experimenting with damping vibrations, StephanR, would like to read some more of your findings on this topic.
the clock upgrade from Guido. Can't wait .
Guido,
I'll see you April 17th on the Dutch DIY day. Will you bring your modified 963SA to demonstrate?
Regards,
Saffier
Re: Bybee purifiers
Hi Saffier
Will see what I can do. Still have to create a presentation for that same festival.....
regards
saffier said:
Hi Saffier
Will see what I can do. Still have to create a presentation for that same festival.....
regards
Re: Re: Re: Re: upsampling clock
Hi Guido,
my DAC indicates me 96kHz on input and alternativly 44kHz if upsampling is off. Anyway, some guy on another newsgroup has meassured it, that was the main reason why I bought the 963.
Saffier,
I ran out of this "plastic-fermit", but ordered some from my plumber. I let you know, if there's something new.
Regards,
Stephan
Guido Tent said:
Hi Guido,
my DAC indicates me 96kHz on input and alternativly 44kHz if upsampling is off. Anyway, some guy on another newsgroup has meassured it, that was the main reason why I bought the 963.
Saffier,
I ran out of this "plastic-fermit", but ordered some from my plumber. I let you know, if there's something new.
Regards,
Stephan
More dampening
Hi Saffier,
I put a square of wood (MDF) in top of the drive and fixed it on the four holes. But there wasn't any additional effect.
Regards,
Stephan
saffier said:
Hi Saffier,
I put a square of wood (MDF) in top of the drive and fixed it on the four holes. But there wasn't any additional effect.
Regards,
Stephan
Damping
Hi Stephan,
I guess you installed it still having the "plastic-fermit" on several critical positions on the drive? Or did you remove it before installing the MDF square on top?
Regards,
Saffier
Hi Stephan,
I guess you installed it still having the "plastic-fermit" on several critical positions on the drive? Or did you remove it before installing the MDF square on top?
Regards,
Saffier
Hi all,
Just a quick confirmation on the bypass capacitors that Eric used for the player: does it mean I will ADD the 0.33 uF film caps in parallel with the existing ones?
Appreciate if someone enlightens me on this.
Just a quick confirmation on the bypass capacitors that Eric used for the player: does it mean I will ADD the 0.33 uF film caps in parallel with the existing ones?
Appreciate if someone enlightens me on this.
Killed
Just killed my 963SA by implementing the new analog PSU for the opamps.
Warning! Do not try this. Something does not seem to be OK.
The laser and laser sledge keep initialising. The player does not come into operating status anymore.
I do not measure voltage at voltage reg. 7601. The others are still OK.
Tried to get the config back to origional status, no succes.
I'm deeply deressed!!!!!!!
Just killed my 963SA by implementing the new analog PSU for the opamps.
Warning! Do not try this. Something does not seem to be OK.
The laser and laser sledge keep initialising. The player does not come into operating status anymore.
I do not measure voltage at voltage reg. 7601. The others are still OK.
Tried to get the config back to origional status, no succes.
I'm deeply deressed!!!!!!!
Re: Killed
Hi saffier, I am sorry to hear this. Could be something in the power up sequence or reset signal but I am not familiar with this model. Hopefully Guido's module will work for you.
saffier said:Just killed my 963SA by implementing the new analog PSU for the opamps.
Warning! Do not try this. Something does not seem to be OK.
The laser and laser sledge keep initialising. The player does not come into operating status anymore.
I do not measure voltage at voltage reg. 7601. The others are still OK.
Tried to get the config back to origional status, no succes.
I'm deeply deressed!!!!!!!
Hi saffier, I am sorry to hear this. Could be something in the power up sequence or reset signal but I am not familiar with this model. Hopefully Guido's module will work for you.
Re: Re: Killed
Hi Elso,
Thanks for compassion. It's not the SMPS but the voltage reg. on the AV/board. Maybe I have to replace it. Or the damage is even wors than I have no clue how to repair it.
The player works in test modus. But out of test modus it keeps trying to initialize.
Weep, weep......
Saffier
Elso Kwak said:
Hi saffier, I am sorry to hear this. Could be something in the power up sequence or reset signal but I am not familiar with this model. Hopefully Guido's module will work for you.
Hi Elso,
Thanks for compassion. It's not the SMPS but the voltage reg. on the AV/board. Maybe I have to replace it. Or the damage is even wors than I have no clue how to repair it.
The player works in test modus. But out of test modus it keeps trying to initialize.
Weep, weep......
Saffier
Re: Re: Re: Killed
Hi Saffier,
What I always do when I screw things up is restoring the original situation. Then look for faults if the problem persists. Most important to check is that ALL voltage regulators give the correct voltage and that all clocks are running. The fact that the player works in the test mode is a good sign! Also a very careful look for solder splashes with a lot of light and a magnifier glass or +++ glasses might help.
Just some tips to keep the spirit up.
🙂
saffier said:
Hi Saffier,
What I always do when I screw things up is restoring the original situation. Then look for faults if the problem persists. Most important to check is that ALL voltage regulators give the correct voltage and that all clocks are running. The fact that the player works in the test mode is a good sign! Also a very careful look for solder splashes with a lot of light and a magnifier glass or +++ glasses might help.
Just some tips to keep the spirit up.
🙂
Ongoing story
Elso thanks for the tips.
I think I have connected the ground to the input pin of the voltage regulator......
Still no progress...
Saffier
Elso thanks for the tips.
I think I have connected the ground to the input pin of the voltage regulator......
Still no progress...
Saffier
