ARCAM ALPHA ONE - 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 26th January 2012, 07:54 PM   #1
diyAudio Member
 
Join Date: Mar 2010
Default ARCAM ALPHA ONE

Hello one and all,

I have just got my hands on one of these to have a play and I wondered if anyone had any suggestions? I'm quite impressed with it considering it's age, especially with the size of the soundstage. There's quite a long thread here about the alpha but does anyone know if the same mods apply to the alpha one?

My frst problem is with the drive which will read cds if I give the disc a little spin myself, to get it started. If not it struggles, gives up and says no disc. Once it's going there are no probs with the sound.

I was thinking about doing the caps and maybe psu. Does anyone have any suggestions of where I can get a new PSU and what rating it should be? I don't really want to do an off board TBH.

I'll put it through my DACMAGIC eventually so I imagine it's not worth replacing the DAC, is that right?

I was going to leave the opaps to begin with to see if I could work with the character of the current ones, however I'm always open to interesting suggestions!

Finaly if anyone had the service manual I'd be very grateful if you would share it with me.

Many thanks for reading.
  Reply With Quote
Old 26th January 2012, 10:42 PM   #2
diyAudio Member
 
Join Date: Jan 2008
Location: Virginia
Is that based on SAA7220/TDA1541?

Last edited by SoNic_real_one; 26th January 2012 at 11:05 PM.
  Reply With Quote
Old 27th January 2012, 08:07 PM   #3
diyAudio Member
 
Join Date: Mar 2010
I'm not sure to be honest. After opening it up I can see 2 opamps which both have similar markings on. One is 2114D JRC 4012B (this is the Z101 opamp on the board) and the other says2114D JRC 4018B (this is the Z1 position). I've done a quick search and it seems they are used in some Marantz machine.

Any hints n tips welcome!
  Reply With Quote
Old 27th January 2012, 11:21 PM   #4
diyAudio Member
 
Join Date: Jan 2008
Location: Virginia
Those are NJM2114 Opamps made by New JRC (rest of the numbers are the manufacturing date). They are very decent OpAmps, there are just a few that fare better than them - in that capsule format. You can look to LM4562 for one.

Last edited by SoNic_real_one; 27th January 2012 at 11:48 PM.
  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
Arcam Alpha 3 Carlosraj Solid State 2 3rd October 2011 07:23 AM
Arcam Alpha plus v. Alpha 5 plus v. Rotel RCD 855 dynoPort Digital Source 1 30th March 2011 11:19 AM
Arcam alpha 9 pumpkin Solid State 0 5th October 2005 06:31 PM
Arcam Alpha 8 ManUtd Digital Source 4 5th April 2004 02:23 PM
Arcam Alpha 5 + j baldam Digital Source 1 9th July 2003 10:20 PM


New To Site? Need Help?

All times are GMT. The time now is 11:13 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