IMG_3621-4
This picture shows the capacitors' locations, sizes, and values for Apple iMac G5 power supply units. The low voltage side of PSU has bulging, leaking, and exploding capacitors. Extremly bad, low quality, short life capacitors were Installed in the iMac Power Supplies. This Image is of the electronic components and the printed circuit board removed from the main power supply assembly. See more information at http://jimwarholic.com/2008/11/apple-imac-g5-power-supply-issues-and.php
23 November 2008
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This photo helps me a lot, but I don't understand the arrows pointing to the top two of six caps. I'm not sure just what is being point to.
The top two caps are on the high voltage side of the PSU. They seldom go bad. In fact, I have not heard of any of those becoming defective.
You can read about how to go about repairing these iMac G5 Power Supply units at the link above.
After viewing the video at:
http://www.youtube.com/watch?v=oDGjWOabJ2E
I now understand what you mean by BAD CAPS, but frankly, only after careful observations.
Maybe you could explain, and show more clear pics of a BAD CAP vs a GOOD CAP.
Also, please explain if correct...
1. CAP TOP vs. CAP SIDE = Y/N
Seems that most caps will show buldging, leakage, etc. from the top first.
2. OBVIOUS SIGNS = Y/N
Seems here, we can say any leakage, possible discoloring, signs of burn, etc. Looking first at tops, then carefully check bottom where touching the mother board.
3. NOT COMMON
It would appear to me, that few capatitors show signs of buldging from the side, and none of the above #1 & #2
Just want to help folks, not so familiar with capacitors and what is a good one, what is not. "Like I am not" Still guessing, but thinking I have it pretty close... Please add more details, better pics, if I am off base.
Aloha,
Chairman,
www.SuperKids.org
I opened up the PSU and found that some of the capacitors that were the 6 okay for you had blown. What are those sizes and values? I looked at the replacement kit but it looked like they are not included.Thanks for your help. I have a C-style PSU.