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 !

Monday 8 April 2019

HP PAVILION DV7 – DISASSEMBLING PROCEDURE

HP Pavilion dv7 – Disassembling procedure

How to replace the key board – how to replace the RTC battery -  HP Pavilion dv7
How to remove Computer feet
The computer feet are adhesive-backed rubber pads. The feet are included in the Rubber Feet Kit, spare part number 516326-001. There are 4 rubber feet that attach to the base enclosure in the locations illustrated below.
How to remove Battery
Before disassembling the computer, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer.
Remove the battery:
1. Turn the computer upside down on a flat surface.
2. Slide the battery release latch (1) to release the battery.
3. Pivot the battery (2) upward and remove it from the computer.
How to remove Optical drive
Before removing the optical drive, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer.
4. Remove the battery
Remove the optical drive:
1. Position the computer with the front toward you.
2. Remove the Phillips PM2.5×7.0 screw (1) that secures the optical drive to the computer.
3. Remove the optical drive (2).
How to remove Primary hard drive cover
Before removing the primary hard drive cover, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer.
4. Remove the battery
Remove the primary hard drive cover:
1. Loosen the four Phillips PM2.5×6.0 captive screws (1) that secure the primary hard drive cover to the computer.
2. Lift the right side (2) of the primary hard drive cover, and then remove the cover (3).
How to remove Secondary hard drive cover
Before removing the secondary hard drive cover, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer.
4. Remove the battery
5. Remove the primary hard drive cover
Remove the secondary hard drive cover:
1. Loosen the three Phillips PM2.5×6.0 captive screws (1) that secure the secondary hard drive cover to the computer.
2. Lift the rear edge (2), and remove the cover (3).
How to remove Hard drive
Before removing the hard drive, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer.
4. Remove the battery
5. Remove the primary hard drive cover
Remove the hard drive:
1. Use the Mylar tab (1) to slide the hard drive to the left (2), and then lift it to release it from the hard drive bay.
2. Disconnect the hard drive cable (3) from the system board.
3. Remove the hard drive (4).
How to remove RTC battery
Before removing the RTC battery, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer.
4. Remove the battery
5. Remove the primary hard drive cover
Remove the RTC battery:
Remove the RTC battery from the socket on the system board.
How to remove Switch cover and keyboard
Before removing the switch cover and keyboard, follow these steps:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and then unplugging the AC adapter from the computer.
4. Remove the battery
5. Remove the primary hard drive cover
Remove the switch cover and keyboard:
1. Remove the following screws:
(1) Three Phillips PM2.5×7.0 screws that secure the keyboard to the computer
(2) Three Phillips PM2.5×7.0 screws that secure the switch cover to the computer
(3) Four Phillips PM2.5×3.0 screws that secure the switch cover to the computer
2. Turn the computer display-side up, with the front toward you.
3. Open the computer as far as possible.
4. Lift the rear edge of the switch cover until it detaches from the computer.
5. Lift the switch cover (1) to access the keyboard screws.
6. Remove the four Phillips PM2.0×4.0 screws (2) that secure the keyboard to the computer.
7. Lift the keyboard (3) until the keyboard connector on the system board is accessible.
8. Release the zero insertion force (ZIF) connector (1) to which the keyboard cable is connected and disconnect the cable (2) from the system board.
9. Remove the keyboard.
10. Disconnect the power button board cable (1) from the low insertion force (LIF) connector on the system board.
11. Disconnect the LED board cable (2) from the LIF connector on the system board.
12. Remove the switch cover.