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- Newsgroups: comp.sys.mac.system
- Path: sparky!uunet!cis.ohio-state.edu!magnus.acs.ohio-state.edu!usenet.ins.cwru.edu!cleveland.Freenet.Edu!bx341
- From: bx341@cleveland.Freenet.Edu (Robert E. Winston)
- Subject: Re: IIsi sound problem
- Message-ID: <1992Aug15.062321.5224@usenet.ins.cwru.edu>
- Sender: news@usenet.ins.cwru.edu
- Nntp-Posting-Host: slc8.ins.cwru.edu
- Organization: Case Western Reserve University, Cleveland, Ohio, (USA)
- Date: Sat, 15 Aug 92 06:23:21 GMT
- Lines: 61
-
-
- >BGD1@psuvm.psu.edu writes:
- >Sometimes my Mac IIsi becomes
- >silent, regardless of the program that's running--it happens
- >even if the finder is the only "appl." running. Less
- >frequently, my Mac acts as if the sound control panel were
- >set on 0 (i.e., the menu bar flashes). Resetting the volume
- >to LOUD (6-7) and then back down to 2 were I keep it solves
- >the problem for a while. I've checked for viruses. It's
- >running system 7.0 plus TuneUp. Any ideas?
-
- >matsb@tdb.uu.se writes:
- >I use a very simple method on my
- >IIsi: I leave the sound at level 7, you get used to it ...
-
- >Dan.Hughes@f421.n109.z1.fidonet.org writes:
- >Give the IIsi
- >and firm thump on the left side of the CPU. Seems to work
- >for me. Try it, you'll like it.
-
- Uhh ... guys? Wouldn't it be less painful to just
- fix the problem?
-
- Here's how:
- The IIsi speaker has a pressure contact with the underside of
- the motherboard. Oxidation seems to form on the speaker contacts
- and cleaning them is the only permanent way to fix the problem.
-
- A temporary fix is an Fkey that jumps the sound up to the
- maximum - beeps once - then returns the sound level to where you
- had it set. It's at mac.archive.umich.edu
- (temporarily shavenyak.css.itd.umich.edu)
- as mac/system.extensions/fkey/twosisoundfix1.0.sit.hqx
-
- To clean the contacts, first remove the top by lifting the tabs
- at the back corners and pulling the top straight up.
- Touch the power supply (the big silver thing at the rear right
- of the box) to discharge any static electricity.
- Next, remove the hard disk by carefully pulling back the two
- plastic clips on the sides that hold it in place. There's no
- need to unplug the disk.
-
- The speaker faces downward and the contacts slip under the
- mother board. It is held in place by four plastic clips. Squeeze
- the clips to release the speaker. Remove the speaker by pulling
- it towards the front of the box.
-
- Clean the contacts with a pencil eraser or a small file
- <gently>. Carefully bend the contacts upwards for better contact
- with the motherboard.
-
- Slip the speaker contacts back under the motherboard and push
- down gently to get the speaker back under the four plastic
- clips. Replace the hard disk. It should snap into place.
-
- I did this about 11 months ago and haven't had any problems
- since.
-
- ____
- Robert E. Winston usr4818a@tso.uc.edu
-