Master Electronics Repair !

Welcome to Master Electronics Repair! website.Here you will find:Service Modes, Circuit Diagrams,Service manuals, Firmware Update procedure, Disassemble procedure, Universal remote control setup codes, Troubleshooting, Diagnosing, Measuring, and more.... of many of LCD/LED TV/Displays,others various electronic apparates,trough many technical notes and tips/tricks to help repairing/fixing Troubles/ faults,for electrical technicians.This site helps you to save the Earth from electronic waste!

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 4 March 2019

LENOVO FLEX 20 – DISASSEMBLING PROCEDURE – HOW TO REMOVE THE REAR COVER – HOW TO REMOVE THE BATTERY - LAPTOP REPAIR AND SERVICE

LENOVO Flex 20 – Disassembling procedure – How to remove the rear cover – How to remove the battery - Laptop repair and service

Category: Laptop Repair and Service

Contents of this article

How to remove the rear cover
How to remove and replace battery

LENOVO Flex 20

DISASSEMBLING PROCEDURE

Removing the rear cover
Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the rear cover.
Note: It may be helpful to place the computer face-down on a soft flat surface for this procedure. Its recommends that you use a blanket, towel, or other soft cloth to protect the touch screen from scratches or other damage.
To remove the rear cover:
Step1. Remove any media(disks,CDs,DVDs,or memory cards)from the drives, shutdown the operating system, and turn off the computer and all attached devices.
Step2. Unplug all power cords from electrical outlets.
Step3. Disconnect all cables attached to the computer. This includes power cords, input /output (I/O) cables, and any other cables that are connected to the computer. Refer to “Left and right view” and “Rear view” for help with locating the various connectors

Step4. Remove the two rubber caps that protect the screws1.

Step5. Loose the two screws that secure the rear cover to the front bezel. 2

Step6. Use a flat head screw driver ,put the head of screwdriver into the slot in between the panel and the rear cover as shown. Then prise the rear cover away from the panel. 3

Step7. Disconnect the transform cable from the connector, and separate the rear cover and the panel. 4

Step8. To reattach the rear cover:

a. Line up the rear cover with the front bezel and reconnect the trans form cable.
b. Line up the holes on the rear cover with mounting holes on the front bezel, and place the rear cover into position.
c. Secure the rear cover to the front bezel with the two screws.
d. Reattach the two rubber caps.

Replacing the battery
Note: Turn off the computer and wait 3 to 5 minutes to let it cool down before removing the base cover.
To replace the battery:

Step1. Remove any media (disks,CDs,DVDs,ormemorycards) from the drives, shut down the operating system, and turn off the computer and all attached devices.
Step2. Unplug all power cords fro electrical outlets.
Step3. Disconnect all cables attached to the computer. This includes power cords, input/output(I/O) cables, and any other cables that are connected to the computer.
Step4. Remove the rear cover.
Step5. Disconnect the power cable from the connector on the motherboard.
Step6. Remove the five screws that secure the battery to the rear cover, then lift up the battery pack as shown.

Step7. To install a new battery:

a. Line up the holes with mounting holes on the rear cover, then place it in to position.
b. Secure the new battery to the chassis with the five screws.
c. Connect the power cable to the connector on the mother board.
Step8. Reattach the rear cover.