Finally, an affordable CD Transport: the Shigaclone story - Page 491

noSmoking · 30th May 2011, 04:33 PM

hey,
Peter has posted it but I don't remember the exact post..........
Here's a link to a picture of it .
robimy shigaraki transport / CD Flatfish - Audiostereo.pl

Have fun!

syklab · 30th May 2011, 05:12 PM

Quote:

Originally Posted by merlin2069er

Hi. How much of the transport should stick up from under the case?

Does anyone have a template for the CD cutout?

I'm almost done, just have to finish the top cover (and fix a trace).

merlin2069er · 30th May 2011, 05:29 PM

Thanks! That's helpful.

Dr.H · 30th May 2011, 06:18 PM

Hotiron, nezbleu, You were right! I had connected pin 3 to pin 6 on the op-amp, so the output that I was seeing at pin 6 was in fact the pre-reg V of 2.522V.

I am now fixing it to ensure that 5534 has a +5 supply to p7 and 0V to pin 4. And of course readjusting the pre-reg so that the ACTUAL output of the op-amp at pin 6 is in 2.522V. So no "alien electronics" after all!

hotiron · 30th May 2011, 09:56 PM

All I can Say Is I'm glad I could clarify the situation.
Ask and I will help.

merlin2069er · 30th May 2011, 10:04 PM

I get 00 (zeros) when powering up my unit. I know I don't have the switch in place, and pressing the other buttons don't seem to do much (I have a CD attached).

I guess I won't know until I get that switch fixed. Is it a normally open or closed switch again?

woodturner-fran · 30th May 2011, 11:04 PM

normally closed. So if the traces are not shorted together, then thats why its not reading the TOC

Fran

hotiron · 30th May 2011, 11:56 PM

Sorry dude it should be a normally open momentary switch

nezbleu · 31st May 2011, 01:04 AM

Quote:

Originally Posted by Dr.H

Hotiron, nezbleu, You were right! I had connected pin 3 to pin 6 on the op-amp, so the output that I was seeing at pin 6 was in fact the pre-reg V of 2.522V.

Good, because what you were suggesting before was impossible. So did you use the 2.5V reference IC that was in the original schematic, or did you replace it with an LM317? What does this say about your listening results? You heard remarkable improvement after attaching a bog-standard LM317 regulator, which probably has no better (or even worse) bandwidth, noise, and impedance than the circuit it was meant to "improve". Kinda makes you wonder, no?

hotiron · 31st May 2011, 02:46 AM

It certainly makes me wonder!

30th May 2011, 04:33 PM	#4901
noSmoking diyAudio Member Join Date: May 2010 Location: Texas	cut out hole hey, Peter has posted it but I don't remember the exact post.......... Here's a link to a picture of it . robimy shigaraki transport / CD Flatfish - Audiostereo.pl Have fun!

30th May 2011, 05:29 PM	#4903
merlin2069er diyAudio Member Join Date: Sep 2008 Location: Toronto	Thanks! That's helpful. __________________ F5 / B1 / dcb1 / AK4396 Dac / Monica Dac / ezDac / Dynaco ST 35 / jFet BOZ / Lightspeed attenuator

30th May 2011, 09:56 PM	#4905
hotiron diyAudio Member Join Date: Feb 2007 Location: Aberdeen Scotland	All I can Say Is I'm glad I could clarify the situation. Ask and I will help. __________________ If you give up easily Dont start!!

30th May 2011, 10:04 PM	#4906
merlin2069er diyAudio Member Join Date: Sep 2008 Location: Toronto	I get 00 (zeros) when powering up my unit. I know I don't have the switch in place, and pressing the other buttons don't seem to do much (I have a CD attached). I guess I won't know until I get that switch fixed. Is it a normally open or closed switch again? __________________ F5 / B1 / dcb1 / AK4396 Dac / Monica Dac / ezDac / Dynaco ST 35 / jFet BOZ / Lightspeed attenuator

30th May 2011, 11:56 PM	#4908
hotiron diyAudio Member Join Date: Feb 2007 Location: Aberdeen Scotland	Sorry dude it should be a normally open momentary switch __________________ If you give up easily Dont start!!


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

30th May 2011, 06:18 PM	#4904
Dr.H diyAudio Member Join Date: Apr 2002	Hotiron, nezbleu, You were right! I had connected pin 3 to pin 6 on the op-amp, so the output that I was seeing at pin 6 was in fact the pre-reg V of 2.522V. I am now fixing it to ensure that 5534 has a +5 supply to p7 and 0V to pin 4. And of course readjusting the pre-reg so that the ACTUAL output of the op-amp at pin 6 is in 2.522V. So no "alien electronics" after all!

30th May 2011, 11:04 PM	#4907
woodturner-fran diyAudio Member Join Date: Jan 2006 Location: Ireland	normally closed. So if the traces are not shorted together, then thats why its not reading the TOC Fran

31st May 2011, 02:46 AM	#4910
hotiron diyAudio Member Join Date: Feb 2007 Location: Aberdeen Scotland	It certainly makes me wonder! __________________ If you give up easily Dont start!!

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read