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.

How to use the site:

- If you landed here via any Search Engine, you will get what you searched for and you can search more using the search this blog feature provided by Google. You can visit more posts scrolling the left blog archive of all posts of the month/year,
or you can click on the main photo-page to start from the main page. Doing so it starts from the most recent post to the older post simple clicking on the Older Post button on the bottom of each page after reading , post after post.

You can even visit all posts, time to time, when reaching the bottom end of each page and click on the Older Post button.

- If you arrived here at the main page via bookmark you can visit all the site scrolling the left blog archive of all posts of the month/year pointing were you want , or more simple You can even visit all blog posts, from newer to older, clicking at the end of each bottom page on the Older Post button.
So you can see all the blog/site content surfing all pages in it.

- The search this blog feature provided by Google is a real search engine. If you're pointing particular things it will search IT for you; or you can place a brand name in the search query at your choice and visit all results page by page. It's useful since the content of the site is very large.

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

HTC HD2 – HOW TO DISASSEMBLE – HOW TO REMOVE THE CASE – HOW TO REMOVE THE BATTERY – HOW TO REPLACE THE MOTHERBOARD

HTC HD2 – How to disassemble – How to remove the case – How to remove the battery – How to replace the motherboard


Carefully pull the rear cover from the back of the phone.
Place a finger beneath the small lip on the left side of the battery.
Lay the phone down on it's screen.
Lift up on the lip and pull the battery from the phone.
Remove the four black 3.5mm T5 screws from the back of the phone.
Insert the flat end of a spudger between the frame and the display.
Slide the spudger along the seam between the frame and the display.
Using the spudger for leverage, carefully pry the frame away from the display assembly.
This process will take some effort. Continue to pry slowly and carefully until the frame begins to detach.
As it releases, pull the frame away from the phone.
The volume control tab may fall off during removal. Do not worry when it does, it can be easily reattached.
Set the phone down on its screen.
Using tweezers, unplug the small vibrator connector from its socket on the motherboard.
Pull the vibrator motor from the phone.
Disconnect the small speaker cable from its socket on the motherboard.
Remove the earpiece speaker from the phone.
Remove the five screws shown with a T5 Torx screwdriver.
Locate the flash cable in the bottom area of the phone.
Unplug the cable and pull it from the device until you reach the actual camera.
Warning: Many of the upcoming steps are difficult and may cause permanent damage to your phone.
Pull the camera flash and cover off of the board. You may need to pull the sticker that is normally behind the battery back a little.
Now locate the coaxial bluetooth cable that connects the top and bottom boards of the phone.
Use tweezers to pop both ends of the cable from the boards and remove it completely.
Now find the AP FPC, one of the smallest connectors on the bottom board.
Pop the small black tab up using tweezers, then unplug the cable.
This step is pretty much irreversible, so do not do this unless you absolutely have to.
Remember peeling back part of that big sticker in the middle? Now you get to take it all the way off.
This may take some time, and the use of the tweezers, but keep at it until the whole sticker is off.
Now find the GPS board in the upper left hand corner of the phone.
Find and pull out the white cable that connects it to the main board.
Note: The cable does not need to be unplugged from the main bottom board.
This (white) cable is connected to the underside of the bottom board, so if it gets detached, be sure to reattach before you reassemble the whole phone.
If this step does not progress easily, check to see that there are no screws still holding the board in place.
With the cable removed, pop the GPS board out of the phone using tweezers.
Using a spudger, begin to pry the copper colored board in the middle away from the phone to loosen it.
Also pry the small piece that runs under where the volume selector is on the full phone.
Caution: there is a connecter cable under the main board, so do not pull it all the way off right away.
Gently pop both the top and bottom boards off of the phone, and turn them over to the left
With the back of the main board exposed, flip up the little brown lever at the end of the connector and unplug the final cable that connects it to the main board.