Playstation as CD-player - Page 176 - diyAudio
Go Back   Home > Forums > Source & Line > Digital Source

Digital Source Digital Players and Recorders: CD , SACD , Tape, Memory Card, etc.

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
Reply
 
Thread Tools Search this Thread
Old 20th November 2007, 07:06 PM   #1751
ecir38 is offline ecir38  United States
diyAudio Member
 
ecir38's Avatar
 
Join Date: Jul 2007
Location: New Orleans
Mick, Iíll stop bothering you soon on the BOM as I am getting down to the last few questions.

The MSR860 and a Low ESR 4700uf are backordered from the place I would like to order. The MSR860 will be replaced with a Schottky SB560 and the capacitor with a general purpose one. I think this will be alright for now and can always replace these when they become available. Note of this will be made on the BOM.

For the trimmer I am thinking 1/2w 25 turn will be alright and for the 1N400x I am thinking 1N4002 100V 1A will be alright.

The 4.3 Zener raises a couple of questions. You say that the Zenerís are not very precise. By this I think you mean that you may need to try a higher voltage one to get the 4.3V drop. I am not sure of what amperage and wattage one I should be looking for.

Finally I have a couple of questions on the toroid. I am looking at a 9+9V 15VA. Will 15VA be enough or should I go with a 25VA? Do you have a recommendation for what values to go with for resistors R2 and R9 with the 9+9V?

Thanks Again.
  Reply With Quote
Old 20th November 2007, 08:07 PM   #1752
ecir38 is offline ecir38  United States
diyAudio Member
 
ecir38's Avatar
 
Join Date: Jul 2007
Location: New Orleans
Here is a pic after the paint job.
Attached Images
File Type: jpg 12.jpg (18.3 KB, 1457 views)
  Reply With Quote
Old 20th November 2007, 08:33 PM   #1753
Mick_F is offline Mick_F  Germany
diyAudio Member
 
Join Date: Jun 2005
Location: Cologne
Buy more Zeners that you need and test them to get the correct value. You may need up to 10 to find a good one. There is a lot of scatter.
Use a normal 500mW type.

For R2 and R2: both rails draw 1A max so you need at least a 1W resistor. I used 5W types in both rails. They become warm but not too much.

As for the toriod, you need at least 8V*1A + 4V*1A = 12A. In order to have some headroom rather use 25 than 15VA. (I wrote this on my website )

Mick
__________________
No statement here.
  Reply With Quote
Old 20th November 2007, 09:27 PM   #1754
diyAudio Member
 
Lostcause's Avatar
 
Join Date: Aug 2005
Location: NW UK
Quote:
Originally posted by ecir38
Here is a pic after the paint job.
  Reply With Quote
Old 21st November 2007, 01:46 PM   #1755
ecir38 is offline ecir38  United States
diyAudio Member
 
ecir38's Avatar
 
Join Date: Jul 2007
Location: New Orleans
Default Bom

Here is the BOM I put together for Mick's Linear power supply.
http://dogbreath.de/PS1/LinearPSU_V2/LinearPSU_V2.html
I think everything looks good thanks to Mick's help. If something doesn't look right please let me know and I will adress it.

MSR860 and 4700uf were backordered when this BOM was put together. MSR860 can be replaced with a SB560 Schottky and the 4700uf can be replaced with a general purpose one.

Note: BOM does not include everything that will be needed.
ie. 9+9V 25VA toroidal, breadboard, enclosure, cable and connectors, terminal blocks, fuse holder, optional net filter etc.

Unfortunantly everyone will not be able to use the part #'s of the supplier I will use due to their location. The description of the item should point you in the right direction. Hopefully this help others out that weren't sure of the specifics for the parts needed like myself.

If you save the pic to your hard drive you should be able to print a larger pic.

Thanks again Mick for kepping up with this thread, I am grateful.
Attached Images
File Type: jpg bom1.jpg (70.1 KB, 1301 views)
  Reply With Quote
Old 21st November 2007, 02:03 PM   #1756
ecir38 is offline ecir38  United States
diyAudio Member
 
ecir38's Avatar
 
Join Date: Jul 2007
Location: New Orleans
Default Re: Bom

Of course better parts can be used, this is a fairly cheap version. For the 1/2W metal film resistors 1/4 watt should be alright. For the capacitors 16V or above is recommended per Mick.
  Reply With Quote
Old 21st November 2007, 04:05 PM   #1757
diyAudio Member
 
Join Date: Mar 2006
Location: Columbia, South Carolina
What did the cost work out to?
  Reply With Quote
Old 21st November 2007, 05:12 PM   #1758
ecir38 is offline ecir38  United States
diyAudio Member
 
ecir38's Avatar
 
Join Date: Jul 2007
Location: New Orleans
Right under $30us for just the parts on the above BOM.
  Reply With Quote
Old 22nd November 2007, 11:45 PM   #1759
diyAudio Member
 
vuthanh6's Avatar
 
Join Date: Jul 2007
Hi Mick,

I want to do follow you. But I can't find PS1 SCHP-100x in Vietnam, so have alot of SCHP-550x. I can try use SCHP-550x? And how to modify it, because I know it's not include opam. Could you help me?

Thanks!
__________________
Thanh
Vietnam
  Reply With Quote
Old 23rd November 2007, 08:32 AM   #1760
Mick_F is offline Mick_F  Germany
diyAudio Member
 
Join Date: Jun 2005
Location: Cologne
In the early days of this thread (something like November 2005) a user was posting here who had good results with the 5502. Please check those earlier posts. Also, you can modify as I described by replacing everything behind the DAC by a simple high pass. It doesnt matter whether or not there is an opamp in the stock version.

Mick
__________________
No statement here.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Playstation CD Player Beau Digital Source 2 19th March 2004 07:59 PM


New To Site? Need Help?

All times are GMT. The time now is 09:11 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2