Playstation as CD-player - Page 46 - 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 23rd December 2005, 12:39 AM   #451
back is offline back  Greece
diyAudio Member
 
Join Date: Nov 2005
Location: crete
Quote:
Originally posted by carawu
Moin,


the PS1 (5502) is rated @ 9VA at max!
Working on an audio Disc, it sucks 6VA from mains.
That said, transformed to the 7,6V or less...who put the 5A on the road???
LM317@1,5A is enough for this machine. Even at startup, large C after the reg for current peaks (10.000F?) will be enough.

Carsten
nobody put the 5A on the road.
i just made a psu with lm 317 and 1000uf at the output and it didnt work.
then i went with lm 317 and 2n3055 which is capable of 5A and it works.

my psu (5502) is rated 17 watts.
  Reply With Quote
Old 23rd December 2005, 07:51 AM   #452
jives11 is offline jives11  Europe
diyAudio Member
 
jives11's Avatar
 
Join Date: Mar 2004
Location: Hampshire
Default mass damping

I have some sticky bitumastic damping material, and it crosses my mind that the metal casework that the CD transport sits on might be able to be damped a bit.

Anyone have a view on wether this metal is a significant heatsink. I guess damping underneath might be better, assuming clearance. I notice Dommi that you damp everything with a grey compound .


Just a thought
  Reply With Quote
Old 23rd December 2005, 08:17 AM   #453
Dommi is offline Dommi  Germany
diyAudio Member
 
Join Date: Dec 2003
Location: Frankfurt
Default Re: mass damping

Quote:
Originally posted by jives11
I have some sticky bitumastic damping material, and it crosses my mind that the metal casework that the CD transport sits on might be able to be damped a bit.

Anyone have a view on wether this metal is a significant heatsink. I guess damping underneath might be better, assuming clearance. I notice Dommi that you damp everything with a grey compound .


Just a thought
Good morning,
you are right, the gray compound is from car accessory, its a material for car bodys. Go into a car accessory shop and ask for. This is a verry good damping material to avoid resonances. I will post a picture with a blue led mounted. You can make some other modifications on the Laserunit. One is to remove the little black cap over the lense, and to paint the margin of the lense black. The other is to remove the complete black cap from transport. You have only to fix the copper cable in a way that it can move with the transport.

Regards Dommi
Attached Images
File Type: jpg img_klein 0556.jpg (16.3 KB, 1057 views)
  Reply With Quote
Old 23rd December 2005, 08:31 AM   #454
Dommi is offline Dommi  Germany
diyAudio Member
 
Join Date: Dec 2003
Location: Frankfurt
Hy @ all,
can someone post a complete psu for 1002 please ? Is there someone who used different transformers for the different output voltages ?

Thanks

Dommi
  Reply With Quote
Old 23rd December 2005, 09:36 AM   #455
Mick_F is offline Mick_F  Germany
diyAudio Member
 
Join Date: Jun 2005
Location: Cologne
Dommi, I am in the course of building a PSU. I will use two separate toroidals (10 V), one for the 7.6 V and one for the 3.6 V output. I will use two LM317 regulators in a regular circuit. The capacity will be someting like 1000uF before, 100uF and a snubber after the regulators.

Mick
__________________
No statement here.
  Reply With Quote
Old 23rd December 2005, 09:47 AM   #456
Dommi is offline Dommi  Germany
diyAudio Member
 
Join Date: Dec 2003
Location: Frankfurt
Quote:
Originally posted by Mick_F
Dommi, I am in the course of building a PSU. I will use two separate toroidals (10 V), one for the 7.6 V and one for the 3.6 V output. I will use two LM317 regulators in a regular circuit. The capacity will be someting like 1000uF before, 100uF and a snubber after the regulators.

Mick

It sounds good, but what are toroidals and a snubber ?
I'm going to look for the parts for a tube stage.

Dommi
  Reply With Quote
Old 23rd December 2005, 09:54 AM   #457
jives11 is offline jives11  Europe
diyAudio Member
 
jives11's Avatar
 
Join Date: Mar 2004
Location: Hampshire
Default Re: Re: mass damping

Quote:
Originally posted by Dommi


Good morning,
you are right, the gray compound is from car accessory, its a material for car bodys. Go into a car accessory shop and ask for. This is a verry good damping material to avoid resonances. I will post a picture with a blue led mounted. You can make some other modifications on the Laserunit. One is to remove the little black cap over the lense, and to paint the margin of the lense black. The other is to remove the complete black cap from transport. You have only to fix the copper cable in a way that it can move with the transport.

Regards Dommi
Thanks Dommi,

What is the reason for the blue LED ?

I assume i't not like the Car or PC case modders ("pimp my playstation")

I noticed that the transport is supported in 3 rubber tubes, but on one side this floating is damped by a plastic tab which rubs against a small rubber pad attached to the metal subchasis. I guess removing the tab and the rubber pad will allow the transport to 'float' better ?
  Reply With Quote
Old 23rd December 2005, 10:18 AM   #458
Mick_F is offline Mick_F  Germany
diyAudio Member
 
Join Date: Jun 2005
Location: Cologne
Quote:
Originally posted by Dommi



It sounds good, but what are toroidals and a snubber ?
I'm going to look for the parts for a tube stage.

Dommi

Toroidals are "Ringkerntrafos".

Snubbers are serial RC networks (like a Zobel) to decrease the ESR of the power supply. Have a look at this page for my implementation of CarlosFMs famous PSU. The snubber is the RC network just before the output.

Mick
__________________
No statement here.
  Reply With Quote
Old 23rd December 2005, 10:20 AM   #459
Mick_F is offline Mick_F  Germany
diyAudio Member
 
Join Date: Jun 2005
Location: Cologne
Default Re: Re: Re: mass damping

Quote:
Originally posted by jives11


I noticed that the transport is supported in 3 rubber tubes, but on one side this floating is damped by a plastic tab which rubs against a small rubber pad attached to the metal subchasis. I guess removing the tab and the rubber pad will allow the transport to 'float' better ?

I generally recommend to remove the small rubber pad glued on the metal internal cover of the PS1 indeed!

Mick
__________________
No statement here.
  Reply With Quote
Old 23rd December 2005, 10:50 AM   #460
pieroh is offline pieroh  Germany
diyAudio Member
 
Join Date: Dec 2005
Location: Marburg
Quote:
Originally posted by Dommi



It sounds good, but what are toroidals and a snubber ?
I'm going to look for the parts for a tube stage.

Dommi

Hi Dommi,
if you use a tube output stage you could use the heater windings at the transformer. The 6,3V to build a regulated supply for the 3,6V and the 12,6V-AC for the 7,6V supply.
Peter
  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 02:20 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