Welcome, Guest. Please login or register.

Author Topic: A4000T/ A4000/ A1200 sound comparison  (Read 1458 times)

Description:

0 Members and 1 Guest are viewing this topic.

Offline JoseTopic starter

  • Hero Member
  • *****
  • Join Date: Feb 2002
  • Posts: 2871
    • Show only replies by Jose
A4000T/ A4000/ A1200 sound comparison
« on: July 04, 2007, 01:19:07 AM »
Hi. I've found the sound on the A4000T to be way very low compared to the other 2. The 4000's is also lower then the A1200's. Is this caused by some capacitors dying or just the normal situation when comparing them ?

In 14bit calibration the A4000T beat's em I can get a perfect calib file with not beeps at all!! (and more easier)
\\"We made Amiga, they {bleep}ed it up\\"
 

Offline CLS2086

  • Hero Member
  • *****
  • Join Date: Oct 2003
  • Posts: 1456
    • Show only replies by CLS2086
Re: A4000T/ A4000/ A1200 sound
« Reply #1 on: July 04, 2007, 10:46:15 PM »
Yes, dying capacitors but maybe also due to a +/- 12v problem on PSU.
Keep the Faith !
VG 5000/A1000/500/500+/600/2000/CDTV/1200PPC-GREX/1200PPC -ATEO-BV/4060D/CD32/Aone/Peg 1/Peg2 G4/ various funny machines too  :-) http://www.mo5.com/collection/index.php?pseudo=CLS2086
I also repair drives of our old beloved Amiga
 

Offline JoseTopic starter

  • Hero Member
  • *****
  • Join Date: Feb 2002
  • Posts: 2871
    • Show only replies by Jose
Re: A4000T/ A4000/ A1200 sound
« Reply #2 on: July 05, 2007, 05:29:50 PM »
Well, if there was a problem with the 12v lines the machine would also have other symptoms no ?
Maybe it's due to the crappy ATX power supply A4000T's came with ?

Anyway, in general should the level be the same on all Amiga models ?

Thx
\\"We made Amiga, they {bleep}ed it up\\"
 

Offline JoseTopic starter

  • Hero Member
  • *****
  • Join Date: Feb 2002
  • Posts: 2871
    • Show only replies by Jose
Re: A4000T/ A4000/ A1200 sound comparison
« Reply #3 on: July 05, 2007, 06:08:41 PM »
I guess not many have all mentioned models to make the comparison... :-(
\\"We made Amiga, they {bleep}ed it up\\"
 

Offline uncleted

  • Full Member
  • ***
  • Join Date: Aug 2006
  • Posts: 107
    • Show only replies by uncleted
Re: A4000T/ A4000/ A1200 sound comparison
« Reply #4 on: July 05, 2007, 08:42:47 PM »
Someone feel free to correct me if I'm wrong, but from memory the Amiga 4000 motherboard doesn't use 12 volt for much.  Just audio and RS232 (serial port).  It should still boot OK even if the motherboard 12 volt line is faulty.

 

Offline JoseTopic starter

  • Hero Member
  • *****
  • Join Date: Feb 2002
  • Posts: 2871
    • Show only replies by Jose
Re: A4000T/ A4000/ A1200 sound comparison
« Reply #5 on: July 06, 2007, 10:03:17 PM »
Cool, that might explain it! I remember some comments here on how crappy the original A4000T psu is, but never got to know what the actual deal was with it.
\\"We made Amiga, they {bleep}ed it up\\"