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Slide the HDD 2 to the right until it’s disconnected from the motherboard and remove it. These laptop has three antenna cables but only two are used. One of the antenna cables connected to the main contact on the wireless card and the second one is connected to the auxiliary contact. In the 1970s, however, very few were even aware of its existence, even though it had been around for almost a century.If you have tried solving this puzzle, you can confirm that your first attempts usually involve sketching lines inside the imaginary square.Because the solution is, in hindsight, deceptively simple, clients tended to admit they should have thought of it themselves.
Management consultants in the 1970s and 1980s even used this puzzle when making sales pitches to prospective clients. Slide the CD/DVD drive to the left to disconnect it from the motherboard. Move the brown clip about 2 millimeters in the direction shown by two arrows. On the picture below the connector is shown in the unlocked position. If you damage the connector, the keyboard will not work. It’s still possible to use this clip to lock the connector. Pull Wi-Fi antenna cables though the opening in the cover. Disconnect the speaker cable (green arrow) from the motherboard. In the next post I will explain how to remove the screen. UPDATE: There are only two fans listed in the service manual for HP Pavilion dv7 series. 488885-001 for notebooks equipped with AMD processor. Lift up the keyboard from the base and access the cable connector underneath. The brown clip must stay attached to the connector base. As you see, the left pin on the brown clip is missing. Remove six screws securing display hinges (three screws per hinge). Separate the display assembly from the notebook base. The green circled screw is hidden in the CD/DVD drive bay. You can use same trick with the guitar pick shown in the step 6. As you see, the cooling fan is dusty and has to be cleaned.