REPAIRING AND NOT THROWING AWAY

REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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Note that if you don't find what you searched for, try it after a period of time; the site is a never ending job !

..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

©2010, 2011, 2012, 2013, 2014 Frank Sharp - You do not have permission to copy photos and words from this blog, and any content may be never used it for auctions or commercial purposes, however feel free to post anything you see here with a courtesy link back, btw a link to the original post here , is mandatory.
All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Friday, 1 February 2019

APPLE IMAC PROCESSOR UPGRADING AND – APPLE MAC MINI RAM REPLACEMENT PROCEDURE

Apple iMac processor upgrading and – Apple mac mini Ram replacement procedure


Apple imac - Apple mac mini processor up-guarding procedure
Start by gathering your parts, tools, anti-static strap and gloves (gloves are for glass & LCD) Remove glass Then remove LCD. 
Core i7 2.93GHz Quad Core processor, Arctic Silver thermal compound,Processor is Intel Core i7 870 2.93GHz 8MB LGA 1156 Quad Core Processor 95W.
Remove HD, Superdrive and motherboard. 
To remove motherboard (a little tricky), I followed this excellent guide 
Not mentioned in the guide is that you have to remove the IR sitting in back of the front Apple logo before you can remove the motherboard
Flip over motherboard, gently remove 4 x Torx 8 heatsink screws on the bottom (not the big Phillips screws on the top). Please note : Warranty is void with this step.
Use Arctic Silver thermal compound remover and preparation solutions to get rid of factory compound.
Note arrow on CPU (bottom left in picture). New CPU must be installed in the same orientation.
Apply Arctic Silver thermal compound with finger covered in plastic. Spread evenly on CPU only. Guide is here - Applying Thermal Paste.
Apple Mac Mini RAM Replacement procedure
Remove Bottom Cover
Place your thumbs in the depressions cut into the bottom cover.
Rotate the bottom cover counter-clockwise until the white dot painted on the bottom cover is aligned with the ring inscribed on the outer case. You do not need to apply much downward pressure while turning.
Tilt the mini enough to allow the bottom cover to fall away from the outer case.
Remove the bottom cover and set it aside.
Replace RAM
Release the tabs on each side of the RAM chip by simultaneously pushing each tab away from the chip.
These tabs lock the chip in place and releasing them will cause the chip to "pop" up. After the RAM chip has popped up, pull it straight out of its socket. Repeat this process if a second RAM chip is installed.
Posted By: FRANK at 11:29
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