> Reply-to: <[EMAIL PROTECTED]> (PCI PowerMacs) > To: <[EMAIL PROTECTED]> (PCI PowerMacs) > Date: Sat, 16 Nov 2002 13:13:22 -0800 > Subject: Re: PowerMac 8500 > From: Obi-Wan <[EMAIL PROTECTED]>
> On 11/16/02 1:14 AM, "Liliana Velazco" <[EMAIL PROTECTED]> Spew into the > Cybertrough: > >I remember I took the case out > > and felt a tiny crack, then heard the tiny little thing fall (it was like a > > silver cilinder). Practically my jaw dropped. I wanted to see how the mac > > reacted upon powering up but the screen just remained gray. Well, I was > > pretending to myself I was ok, but upon waking up the next day and realizing > > she was gone I started crying (I had the 4400/120 that helped me cope with > > the loss). > > Aaaaah. The infamous C48 resistor. Lots of people break that little silver > drum off. There are a number of them on the bottom of the logic board. You > need to flex the case out when removing it from the chassis. Pick a standard cap off a discarded electronic (i.e. 47uF 25V, 35V or 50V) form the leads and solder that to that sheared solder pads where C48 was. I now work for electronic shop serving customers and big boxes business and want to throw my comments in: That's smd electrolytic capacitor. Big bane of electronics especially in consumer electronics like in palm cams and regular video cameras degrading or quit, PIP module failing because those electrolyte leaks and corrodes the copper off. Stinky as hell like a week old rotting fish on hot day when removing bad ones with soldering iron. Pheewww cough cough... Also they're nasty and always cuts useful life of electronics short unless one deal with it to keep a unit working. For example in Mitsubishi TV's if customer approves without PIP (very few users use PIP), I remove that plug in module then snip grounding wire and use standard 4.7uf 50V electrolytic (that ones that doesn't leak & corrode), also 0.1uF disk ceramic cap to bypass directly on one connector. Done 3 already last few months. RCA PIP is immune to this because this type uses standard caps still. I still find problems that too in any Macs with those SMD electrolytics, my ESR and visual inspection. SMD resistors of any size are flat and retangular. Ceramic capacitors are in that shape too but varible thicknesses and in any sizes, different colors. Rebuilding a unit with about 100 SMD electrolytic caps is labor heavy and costly, if not caught early on many corroded traces to repair. Best to toss and buy another especially for video cams. Cheers, Wizard -- PCI-PowerMacs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- Sonnet & PowerLogix Upgrades - start at $169 | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> PCI-PowerMacs list info: <http://lowendmac.com/lists/pci-powermacs.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/pci-powermacs%40mail.maclaunch.com/> --------------------------------------------------------------- >The Think Different Store http://www.ThinkDifferentStore.com ---------------------------------------------------------------
