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Concerns about LC Power Supply

Scott Baret

Well-known member
I'm a bit worried about my LC's power supply for the following reasons:

1. There is an odor coming from it, it smells a bit like burnt fish.

2. The hard drive didn't get enough oomph to start up on its own.

3. The video problems I have written about in this section of the forum do not seem to stem from anything in the video system.

The supply is not making the infamous whistling noise known to occur on some LCs. However, I am curious as to whether or not I should consider replacing it, especially if I want to stick the IIe card inside the LC instead of the dying CC.

If I need a new one, would anyone know where to get a **NEW** one (as in one that has never been used) and if so, for what price? (If the power supply in my beloved LC is going to die I would gladly spend a hundred dollars to fix it...this is a Mac I have used since preschool!) If there is no way of acquiring a NOS power supply, what would I be looking at to find one that is not only in good shape but does not make the whistling/wooshing noise and would be guaranteed to work for another 17 years?

 

Byrd

Well-known member
would be guaranteed to work for another 17 years?
Is that when you are going to die? :)

Seriously, LC power supplies are a dime a dozen - they seem pretty reliable, and if you find a second hand one that will keep things going for many years ... seventeen may be pushing it however.

JB

 

LCGuy

LC Doctor/Hot Rodder
Even so, if you can't find a replacement power supply, the LC power supplies are a very simple device, I imagine that if a component on it did go out, it wouldn't be too difficult to repair the unit, or even find a non-genuine replacement. LCs are very energy efficient, and they don't use soft power, and don't use any weird voltages or anything, just normal 5 and 12VDC...if you had to, it wouldn't be very hard at all to track down a PSU that meets those requirements and hack it in.

 

Scott Baret

Well-known member
I might swap out the power supply for the one from my 475 tonight. I did some searching on Google Shopping and found some that looked to be new and a few that claimed to be refurbished. I may buy a pair of refurbs if I can't find a new one (in case one doesn't work) but want to try the known good 475 power brick tonight first to rule out other causes, especially with the annoying video problems.

Given the odor from the power supply I'm willing to bet it's the cause...anyone concur?

 

thinkdifferent

Well-known member
I'm a bit worried about my LC's power supply for the following reasons:
1. There is an odor coming from it, it smells a bit like burnt fish.

2. The hard drive didn't get enough oomph to start up on its own.

3. The video problems I have written about in this section of the forum do not seem to stem from anything in the video system.

The supply is not making the infamous whistling noise known to occur on some LCs. However, I am curious as to whether or not I should consider replacing it, especially if I want to stick the IIe card inside the LC instead of the dying CC.

If I need a new one, would anyone know where to get a **NEW** one (as in one that has never been used) and if so, for what price? (If the power supply in my beloved LC is going to die I would gladly spend a hundred dollars to fix it...this is a Mac I have used since preschool!) If there is no way of acquiring a NOS power supply, what would I be looking at to find one that is not only in good shape but does not make the whistling/wooshing noise and would be guaranteed to work for another 17 years?
The power supply is probably getting old and needs to be replaced. That would explain the "burnt fish," and Hard Disk problems. Here's a power supply from ebay for $35: http://cgi.ebay.com/Apple-Macintosh-Power-Supply-699-0153-LC-II-III-475-etc_W0QQitemZ200257608310QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item200257608310&_trksid=p3286.c0.m14&_trkparms=72%3A1205|66%3A2|65%3A12|39%3A1|240%3A1318|301%3A1|293%3A1|294%3A50

 

thinkdifferent

Well-known member
If you cannot find the new PS you want. I have two used. Free for the shipping.
JHV
The member would probably like to know the price of the units you are selling, unless they are free, which would be very generous of you.

 

LCGuy

LC Doctor/Hot Rodder
Um, he said, "Free for the shipping". ;) Which means, "just pay for the cost of shipping from wherever jhvaughan2 is to where you are". ;)

 

Scott Baret

Well-known member
The power supply turned out to be fine, it was the logic board and a leaky capacitor at fault. I'm hoping to repair the logic board this summer.

 
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