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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..............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

HOW TO REPLACE THE DISPLAY OF APPLE IMAC – APPLE IMAC 21.5 DISPLAY

How to replace the display of Apple iMac – Apple iMac 21.5 display

Apple iMac – Apple iMac 21.5 display replacement procedure – How to remove the front glass - how to remove the display.
 Apple iMac 21.5:  Display replacement procedure
How to remove the Glass Panel
Before beginning, unplug your iMac and lay it on a soft surface as shown. Stick a suction cup near each of the two top corners of the glass panel. To attach the suction cups we sell, first position the suction cup with the movable handle parallel to the face of the glass panel. While lightly holding the suction cup against the glass, raise the movable handle until it is parallel with the other handle. If your suction cups refuse to stick, try cleaning both the glass panel and the suction cup with a mild solvent.
Gently lift the glass panel perpendicular to the face of the LCD enough to clear the steel mounting pins attached along the underside of the top edge of the glass panel. Pull the glass panel away from the lower edge of the iMac and carefully set it aside. During reinstallation, be sure to meticulously clean the inside of the glass panel and the face of the LCD as any dust or fingerprints trapped inside will be annoyingly visible when the machine is turned on.
How to remove the Display
Remove the eight 8 mm T10 Torx screws securing the display to the outer case.
The last two pictures are detail shots of each side of the display
Slightly lift the top edge of the display out of the outer case. Do not lift it too much. There are several cables attaching the display to the logic board.
Pull the vertical sync cable connector out of its socket on the LED driver board near the top left corner of your iMac.
Rotate the display out of the outer case enough to disconnect the LED backlight power cable from the LED driver board. Disconnect the LED backlight power cable by depressing the locking mechanism while pulling the connector away from its socket (toward the bottom edge of the iMac).
Grab the plastic pull tab secured to the display data cable lock and rotate it towards upwards. Pull the display data cable straight out of its socket on the logic board. Do not lift up on the display data cable, as its socket is very fragile. Pull the cable parallel to the face of the logic board.
Disconnect the LCD thermal sensor cable connector from its socket on the logic board. If your fan is spinning full speed after completion, check this connection or the hard drive's thermal sensor cable.
Carefully pull the display toward the top edge of your iMac and lift it out of the outer case, minding any cables that may get caught
Posted By: FRANK at 23:32
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