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 2005, 08:28 PM   #41
diyAudio Member
 
Join Date: Dec 2003
Location: Montreal
For the PSU, it needs a multi-wire cable, but is it preferable if it has a shield?
__________________
Antoine
http://dmsaudio.ca/
  Reply With Quote
Old 21st November 2005, 08:07 AM   #42
Mick_F is offline Mick_F  Germany
diyAudio Member
 
Join Date: Jun 2005
Location: Cologne
Quote:
Originally posted by DragonMaster
For the PSU, it needs a multi-wire cable, but is it preferable if it has a shield?

The one I use now has no shield and it works fine.

Mick
  Reply With Quote
Old 22nd November 2005, 03:27 PM   #43
jives11 is offline jives11  Europe
diyAudio Member
 
jives11's Avatar
 
Join Date: Mar 2004
Location: Hampshire
Default simple shield ?

I have read some posts which discuss providing an RF 'screen' around the PSU (assuming you leave it in the chasis).

Does anyone have a view on how enveloping of the PSU a screen would have to be ? Is a simple copper 'wall' between the PSU and laser assembly sufficient ? I have seen gear where brass or copper 'walls' seperate sections, but do not cover the sections.

I found that an old copper RAM cooler (as used in PC overclocking) fits nicely between the clear plastic screen and the assembly. discard the clips and put the two sides facing you the same way, overlapped

You need to be careful, but the plastic screen supports the copper screen and also provides some insulation. I assume the clear plastic screen is to deflect heat in the PSone, or maybe deflect fuse shrapnel in case of a catastrophic fuse failure

You can overlap the two sides of the RAM cooler the same way and 'telescope' from the front to back of the grey box, under the supply cables from PSU to board.

Difficult to explain, needs a diagram but imagine a 20mm high wall of 1mm copper from from to back along the divide between the PSU and laser.
  Reply With Quote
Old 22nd November 2005, 05:35 PM   #44
Nanook is offline Nanook  Canada
diyAudio Member
 
Nanook's Avatar
 
Join Date: Feb 2004
Location: Chinook Country.Alberta
Default more correctly we could call it a "Farady cage"

yes, a shield made of any easy to bend metal (preferably a good conductor but most metals are good at this), and tie it to ground. That's it.

BUT : BE CAREFULL! it should not come anywhere near any voltages and certainly not the input AC!.

Take a lid off of almost any digital component of quality and it will have a shield.

If unsure or uncomfortable, please do not do this yourself, get a friendly tech friend or electrician to do it for you.
__________________
stew -"A sane man in an insane world appears insane."
  Reply With Quote
Old 23rd November 2005, 07:54 AM   #45
Mick_F is offline Mick_F  Germany
diyAudio Member
 
Join Date: Jun 2005
Location: Cologne
But you still have the heat problem then!

Mick
  Reply With Quote
Old 23rd November 2005, 08:09 AM   #46
Nanook is offline Nanook  Canada
diyAudio Member
 
Nanook's Avatar
 
Join Date: Feb 2004
Location: Chinook Country.Alberta
Default I thought this was all in reference to...

RF noise, no thermal shielding... ok, make a 2 layer shield with a space to allow heat to convect from between them and vent the enclosure as well.
Attached Images
File Type: jpg shield.jpg.jpg (9.6 KB, 4031 views)
__________________
stew -"A sane man in an insane world appears insane."
  Reply With Quote
Old 23rd November 2005, 08:13 AM   #47
Mick_F is offline Mick_F  Germany
diyAudio Member
 
Join Date: Jun 2005
Location: Cologne
But dont do this with the first version SMPS.....
__________________
No statement here.
  Reply With Quote
Old 23rd November 2005, 08:20 AM   #48
Nanook is offline Nanook  Canada
diyAudio Member
 
Nanook's Avatar
 
Join Date: Feb 2004
Location: Chinook Country.Alberta
Default not trying tro be a pain,But...

why not? If heat is a problem and RF is as well, please explain to me why one couldn't do it? . I can rebox the thing (I have a 1001) in an Aluminium case from an old car amp, it will fit....and just use tha whole amp case as a shield and drill some holes in the top so that heat has someplace to convect to ....

Any further insight?
__________________
stew -"A sane man in an insane world appears insane."
  Reply With Quote
Old 23rd November 2005, 08:23 AM   #49
Mick_F is offline Mick_F  Germany
diyAudio Member
 
Join Date: Jun 2005
Location: Cologne
I was referring to the different versions of SPMS used for the PS1. The very first versions came with a SMPS that dissipates quite a lot of heat. Later versions came with a Nichicon SMPS that dissipates 3W less of power. With the latter one you can try to leave it in the original place and maybe even shield it, but I wouldnt recommend to do so with the first version

Mick
__________________
No statement here.
  Reply With Quote
Old 23rd November 2005, 08:25 AM   #50
Nanook is offline Nanook  Canada
diyAudio Member
 
Nanook's Avatar
 
Join Date: Feb 2004
Location: Chinook Country.Alberta
Default point taken...

so the need to change the orientation or location of the the transport vs. the power supply, or remove the power supply completely from the same box , and shield it for rf?
__________________
stew -"A sane man in an insane world appears insane."
  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 02:43 PM.


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