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Old 30th May 2011, 04:33 PM   #4901
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Default 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!
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Old 30th May 2011, 05:12 PM   #4902
syklab is offline syklab  Hong Kong
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Quote:
Originally Posted by merlin2069er View Post
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).
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File Type: pdf DriveTemplate.pdf (18.2 KB, 185 views)
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Old 30th May 2011, 05:29 PM   #4903
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Thanks! That's helpful.
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Old 30th May 2011, 06:18 PM   #4904
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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!
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Old 30th May 2011, 09:56 PM   #4905
hotiron is offline hotiron  Scotland
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All I can Say Is I'm glad I could clarify the situation.
Ask and I will help.
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Old 30th May 2011, 10:04 PM   #4906
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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?
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Old 30th May 2011, 11:04 PM   #4907
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normally closed. So if the traces are not shorted together, then thats why its not reading the TOC


Fran
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Old 30th May 2011, 11:56 PM   #4908
hotiron is offline hotiron  Scotland
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Sorry dude it should be a normally open momentary switch
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Old 31st May 2011, 01:04 AM   #4909
nezbleu is offline nezbleu  Canada
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Quote:
Originally Posted by Dr.H View Post
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?
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Old 31st May 2011, 02:46 AM   #4910
hotiron is offline hotiron  Scotland
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It certainly makes me wonder!
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