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 !

Monday, 8 April 2019

APPLE IPHONE 4S – HOW TO REMOVE AND REPLACE THE DOCK CONNECTOR OF APPLE IPHONE

Apple iPhone 4S – How to remove and replace the dock connector of apple iPhone


Apple iPhone 4S 
Before disassembling your iPhone, be sure it is powered off.
Remove the two 3.6 mm Pentalobe P2 screws next to the dock connector.
During reassembly, we recommend you replace the 5-point screws with equivalent Phillips screws.
The 5-Point Screwdriver should only be used once, as it has the potential to strip the screws.
Push the rear panel toward the top edge of the iPhone.
The panel will move about 2 mm.
Pull the rear panel away from the back of the iPhone, being careful not to damage the plastic clips attached to the rear panel.
Remove the rear panel from the iPhone.
Remove the following screws securing the battery connector to the logic board:
One 1.7 mm Phillips screw
One 1.5 mm Phillips screw.
Use a plastic opening tool to gently detach the battery connector from the socket on the device. Start lifting off the connector from the bottom side, by placing the tip of the tool between the loudspeaker enclosure and the metal cover of the connector.
The battery connector comes off vertically from the logic board. Do not apply force sideways.
Pay attention to the pressure contact underneath the top screw of the battery connector. This may come loose while prying the battery connector from its socket.
Use a plastic opening tool to pull the pressure contact from underneath the battery connector.
When reinstalling the pressure contact, be sure to clean it with a degreaser such as windex or isopropyl alcohol. The oils on your fingers have the potential to create wireless interference.
Take notice of the position of the small black ground clip on the upper screw of the battery connector. This clip is attached only by the upper screw. When reinstalling, it must be aligned so the gold contact point will press against the back cover.
Be careful not to rip off the battery connector socket soldered on the logic board. There ar 4 very small soldering points awaiting this mistake!
Insert the edge of a plastic opening tool between the battery and the outer case near the bottom of the iPhone.
Run the plastic opening tool along the right edge of the battery and pry up at several points to completely separate it from the adhesive securing it to the outer case.
Use the exposed clear plastic pull tab to peel the battery off the adhesive securing it to the iPhone.
Remove the battery.
Be careful not to pull the plastic pull tab too hard as it can be ripped off very easily.
Remove the following screws securing the dock connector cable cover to the logic board:
One 1.5 mm Phillips screw
One 1.2 mm Phillips screw
Remove the metal dock connector cable cover.
Use the edge of a plastic opening tool to pry the dock cable up from its socket on the logic board.
Peel the dock connector cable off the adhesive securing it to the logic board and the side of the speaker enclosure.
 Use the edge of a plastic opening tool to pry the cellular antenna cable up from its socket on the logic board.
De-route the cellular antenna cable out from under the metal fingers attached to the logic board.
 Remove the two 2.4 mm Phillips screws securing the speaker enclosure assembly to the outer case.
Remove the small black spacer that was under the Phillips screw near the vibrator.
Use a plastic opening tool to lift the speaker enclosure assembly out of the case, being sure not to damage the EMI fingers on the attached Wi-Fi antenna.
Remove the speaker enclosure assembly.
Before reinstalling the speaker enclosure assembly's screws, be sure the Wi-Fi grounding fingers are installed below the lip in the iPhone's metal case as seen in the third picture.
Before reassembly, be sure to clean all metal-to-metal contact points between the grounding fingers of the Wi-Fi antenna and the case of the iPhone with a de-greaser such as windex or isopropyl alcohol. The oils on your fingers have the potential to cause wireless interference issues.
 If present, remove the small strip of tape covering one of the dock connector screws.
 Use a plastic opening tool to flip up the retaining flap on the home button ribbon cable ZIF socket.
Be sure you are prying up on the hinged retaining flap, not the socket itself.
 Use a pair of tweezers to pull the home button ribbon cable out of its socket.
There are tiny components on the back side of the ribbon, so be careful not to damage them upon ribbon removal.
Carefully pull the rubber microphone holder out of its tube in the bottom edge of the iPhone.
 Remove the two 1.3 mm Phillips screws securing the dock connector to the case of the iPhone.
Remove the tiny rubber spacer near the dock connector.
 Use the edge of a plastic opening tool to peel the dock connector and its cable off the black plastic case of the iPhone.
If you are replacing the dock connector with a new part, make sure to transfer the rubber casing around the microphone. You can do this using a spudger.
 Pry the dock connector away from its opening at the bottom of the iPhone.
Remove the dock connector.
Posted By: FRANK at 04:30
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