From: f0975893@jaguar.csc.wsu.edu
Newsgroups: comp.sys.mac.hardware
Subject: Re: LC, IIsi & SE/30 sound flakey!!
Date: 14 Sep 92 06:43:57 GMT
Article-I.D.: jaguar.1992Sep14.144357.1
Organization: Washington State University

In article <1992Sep14.151834.28371@wam.umd.edu>, sell@wam.umd.edu 
(Steven Sell) writes:
>
> In article <1992Sep14.133707.6574@ifi.uio.no> erlingm@ifi.uio.no (Erling  
> Mork) writes:
>> I have the same problem with my IIsi. I had the connections on the 
>> hardware checked and it still blips out. I have heard that other si 
>> owners have  this problem. Now I know it exists on the LC, too.
>> 
>> Temporary remedy: Go to Sound control panel and select volume level 7.
>> This will get the sound back. Unfortunately, some games (ie Falcon) wont
>> let you access this panel during play. Also, if one program is using the
>> sound manager and you do this, the whole thing might freeze (this from
>> personal experience - I don`t know the precise cause).
>> 
>> I, too, would like an answer to this annoying problem. Game players are
>> not the only ones to suffer - I work with music and it can be really  
>> annoying there, too.
>> 
> 
> I too have a IIsi with that same problem.  I have found that this does not  
> occur when there is an external speaker hooked up.  Since you are into  
> music, this would not only help with the sound problem, but give you  
> better sounding output as well

I too have an SE/30 with a sound problem - so I will just jump on the 
bandwagon here. It is not an intermittent one, the sound simply goes
scratchy at random times, usually when the CPU has been on for some
time.

I just upgraded my SE to an SE/30 (another topic I noticed on the
net!!). I am very happy with the upgrade. Fortunately, I got a good
price (through a connection I have) and that made it preferable over the 
accelerator route. I am not interested in IIs because I like my compact
mac and the Classic II is a poor replacement for the SE/30 (and more 
expensive than the SE/30 upgrade for my SE). One major reason I prefer
the SE & SE/30 over the Classic is that the power supply is voltage
sensing. I assume that they took it out of the Classic to cut the cost.
I am an UK student doing my PhD in the US. I have no idea what voltage
will be at my next port of call!!

My advice on whether or not you should upgrade your SE would depend
on what your future plans are. External monitors? Then get an IIsi (but
you obviously can get a external monitor for your SE/30). If you like
the compact model (and can cope with a 9" BW screen), get the upgrade.
I avoided the accelerators because I felt that the SE/30 would be able
to keep up with the newer 030 models. True, the ROMs are not 32-bit
clean but MODE32 fixes that, and I hear future Sys SW will include this
patch anyway.

The upgrade from Apple comes with a one year warrenty on the board (and
the front bezel gets changed to read SE/30 too!!). I have already taken
advantage of this, since when I noticed the problem with the sound, I had
the local Apple dealer replace the logic board in case that was the
problem. It wasn't!!

He did notice my 3rd party internal modem that I have, and that this
uses the internal speaker in a somewhat unorthodox manner (piggy back).
This was suggested to be the cause of the problem. However, I had no 
problem with this internal modem and the SE logic board. My next step
is to disconnect the internal modem from the speaker and see if that
solves the problem.

Anyone had similar problems with SE/30 and internal modem boards??
I would be interested to know.

Hope this interests someone.
Richard
__________________________________________________________________________
    ___     
   (___)    Richard J Appleyard
     _      Washington State University  
    / \     f0975893@jaguar.csc.wsu.edu
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  _/ |      "To err is human, but to really screw things up 
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    / /     Any opinions expressed here are entirely my own 
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