>My SE/30 running System 7 seems to have developed a "buzzing" >through the internal speaker (it can also be heard through the >rear audio out). >The "buzz" seems to occur when the Mac does anything. >For example: >spinning the diskdrive, >spinning the harddrive, >keystrokes, >mouse movement, >screen draws (particularly noticeable when selecting items on the apple >menu) >-Jonathan Tatusko, "Battle On!"
This is probably bad electrolytic capacitors. They're cheap aluminum-can variety and nowadays are frequently the source of SE/30 problems, especially in the sound section. One or more of C3, C4, C5, and/or C6 are the usual suspects. The best thing to do is replace all 4 of them with tantalum chip capacitors. The main problem is to avoid lifting pads when doing the repair, 2 soldering irons help there. I can supply the tantalum caps at my cost, email me off-list for that. Gamba <http://home.earthlink.net/~gamba2> -- Compact Macs is sponsored by <http://lowendmac.com/>. Support Low End Mac <http://lowendmac.com/lists/support.html> Compact Macs list info: <http://lowendmac.com/lists/compact.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive:<http://www.mail-archive.com/compact.macs%40mail.maclaunch.com/> --------------------------------------------------------------- >The Think Different Store http://www.ThinkDifferentStore.com ---------------------------------------------------------------
