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 !

Wednesday, 3 April 2019

HP COMPAQ NOTEBOOK NC4000 SERIES KEYBOARD REPLACEMENT- (USER REPAIRABLE)

KEYBOARD REPLACEMENT- HP Compaq Notebook nc4000 Series (User Repairable)

Prepare to replace the Keyboard:
Turn off the notebook.
Disconnect the AC adapter and all external devices.
Remove the battery pack by following these steps:
a. Turn the notebook bottom side up with the front facing forward.
b. Slide and hold the battery release latch [1] to the left. The rear edge of the battery pack releases from the notebook.
c. Lift the rear edge of the battery pack up and swing it forward [2].
d. Remove the battery pack.
LED switch cover removal
Close the notebook and turn it bottom side up with the rear panel facing forward.
Remove the two T8M2.0×8.0 screws that secure the LED switch cover to the notebook.
Turn the notebook topside up with the front facing forward.
Open the notebook as far as it will open.
Press down on the (esc) key 1 to reveal the notch 2 in the left side of the LED switch cover.
Insert a flat-bladed tool into the notch and lift the left side of the LED switch cover 3.
After the left side of the LED switch cover has disengaged from the notebook, swing the LED switch cover up and to the right.
Remove the LED switch cover.
Close the notebook and turn it bottom side up with the rear panel facing forward.
Remove the T8M2.0×8.0 screw that secures the keyboard to the notebook.

Turn the notebook topside up with the front facing forward.
Open the notebook as far as it will open.
Lift the rear edge of the keyboard 1.
Slide the keyboard toward the display 2 until the notches on the front edge of the keyboard clear the top cover.
Swing the front edge of the keyboard up and back 3 until it rests on the display.
Release the zero insertion force (ZIF) connector 1 to which the pointing stick cable is attached and disconnect the pointing stick cable 2 from the system board.
Release the ZIF connector 3 to which the keyboard cable is attached and disconnect the keyboard cable 4 from the system board.
Remove the keyboard.
Reverse the above procedure to install the keyboard.
Posted By: FRANK at 02:34
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