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!

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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

JAZZ ULTRATAB C954 HOW TO REPLACE THE TOUCH SCREEN

How to replace the touch screen - Jazz Ultratab C954


On the top of the tablet there are two 1cm screws that hold the back cover on. Locate these screws and remove them using a Phillips head #0 screw driver.
You now have to pry the back cover from the touch screen panel. To do this insert a plastic spudger into the seem. Then work your way around the panel until it is free.
There are buttons on the top side of the tablet that go through the back cover. The cover must slide up when removed to avoid damaging the buttons.
This is what your tablet should look like once the back cover is removed. You are now ready to begin repairing your tablet. Follow the corresponding guide for instructions on repairing major components.
To reattach the back cover begin by sliding the cover on making sure the buttons and the speaker are in their designated holes on the back cover.
Then attach the two covers by pressing them together until you hear the plastic tabs interlock.
With the two screens held together the last step is to put the two 1cm screws on the top of the tablet back in. Your tablet is now ready for use again.
The first step is to remove the motherboard from the touch screen panel. To do this use a phillips head #0 screwdriver to remove the three 1cm screws that hold the motherboard to the panel. The screws are located at the top of the motherboard.
You now have to remove the microphone from its original location.
The microphone is in the small circular slot highlighted in the photo.
If the microphone does not easily slide out you may need tweezers to remove it.
There is a wire strip connecting the touch screen panel to the motherboard. This must be removed from the motherboard. To do this use a spudger to pry up the tab on the back of the connector. This will allow you to pull the wires out of the connection and will free the touch screen panel.
With the touch screen panel free of all electrical connections it now can be removed from the screen and motherboard.
There are 9 plastic tabs holding the screen to the touch screen panel. These tabs are circled in the photo. To remove the tabs use a spudger to pry the screen out of the touch screen panel.
Once the tabs are all removed the touch screen panel will be free and can be removed from the screen and motherboard.
You can now attach the new touch screen panel to the screen and motherboard. start by pressing the screen into the new touch screen panel in the nine locations previously located.
When reassembling remember to put the microphone, wire strip and motherboard screws in the proper locations, following the steps in reverse.
Posted By: FRANK at 05:11
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