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- Path: sparky!uunet!psinntp!inode!chaiken
- From: chaiken@inode.com
- Newsgroups: comp.lang.c++
- Subject: HOW TO TURN PC SPEAKE
- Message-ID: <3267635663.23@inode.com>
- Date: 24 Dec 92 11:58:55 EST
- Reply-To: chaiken@inode.com
- Distribution: USA
- Organization: inode BBS, Usenet Access for NYC (212-679-9146)
- Lines: 30
-
- -=> Quoting Mikey@ontek.com to News <=-
-
- Mi> This involves a simple hardware mod. Turn off the power, disconnect
- Mi> the line cord and open the PC's case so you can get at the motherboard.
- Mi> Locate the speaker and take a sharp tool like a pencil and poke several
- Mi> small holes around the center of the speaker until the voice coil has
- Mi> been disabled. Close it up and turn it on and test. If you unplug
- Mi> your PC and move it to a different office, the speaker remains
- Mi> disabled, so I believe this is a portable solution to the problem.
-
- This is a very permanent solution. Why don't you just Open up the case,
- cut one wire coming from the speaker and insert a SPST switch if you are
- going to modify the hardware.
-
- If you want to use a software solution, then you can simply toggle the
- Speaker off bit. on port 0x61; Bit 1. 0 is speaker off 1 is speaker
- on. You can also obtain Direct Speaker control through the 8253 Timer
- chip. with bit one. 0 is Control via bit one of the 8255, 1 is control
- via the 8255 Timer.
-
- Note: This is only for machines which use te 8255 Programmable
- Peripheral Interface
-
- ---------------------------------------------------------------------------
- Jarett D. Chaiken
- chaiken@inode.com
-
-
- ... Truth is stranger than fiction, because fiction has to make sense.
- ___ Blue Wave/QWK v2.11
-