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 !

Thursday, 14 March 2019

HP COMPAQ NOTEBOOK NC 4000 SERIES_HOW TO REMOVE - FAN – KEYBOARD – LED SWITCH COVER

HP Compaq Notebook NC 4000 Series_HOW TO REMOVE - FAN – KEYBOARD – LED SWITCH COVER

LED SWITCH COVER - FAN - KEYBOARD
Turn the notebook 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 top side 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.
Turn the notebook top side 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 4from the system board.
Remove the keyboard.
After the keyboard is removed, the internal memory expansion socket is accessible. Follow these steps to remove a memory expansion board from the internal memory expansion socket:
Spread the retaining tabs [1] that secure the memory expansion board to the socket. The board rises up at a 45-degree angle.
Pull the board away from the socket at a 45-degree angle [2].
Disconnect the fan cable 1from the system board.
Remove the three PM2.0×3.0 screws 2that secure the fan to the heat sink.
Remove the fan.
CAUTION: When installing the fan in the heat sink, make sure the fan cable is not get crimped by the screw next to the cable clip [3]. If the cable is crimped and damaged, the fan will not cool the notebook internal components, which could result in damage.
Posted By: FRANK at 04:24
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