Palm Treo 755p Circuit Board Replacement

Geschrieben von: Mike Shaw

Kommentare: 1

Palm Treo 755p Circuit Board Replacement

Schwierigkeitsgrad

Moderate

Schritte

Zeitaufwand

10 Minuten

Einleitung

This will remove the circuit board from the front portion of the phone to reveal the keyboard and screen.

Werkzeuge

Schritt 1

Press the button on the back cover to release the battery cover.
Slide off the battery cover.

Schritt 2

Remove the battery by lifting up on one side.

Schritt 3

Remove the stylus by pulling up on the large top to reveal the top left case screw.
Pull away the black flap to reveal the top right case screw.

Schritt 4

Use a T5 screwdriver to remove the five 7 mm black/red back case screws.
Use a T5 screwdriver to remove the middle 3.1 mm screw.

Schritt 5

Use the plastic opening tool to pry open the device. Start on the volume control side (left side of the screen) and work your way up along the edge and across the top.
The side volume control buttons may fall out after opening the device.

Schritt 6

Slowly unfold the back casing away from the front casing revealing the red and black wound wire speaker cable, marked by the red box.
Potential for device damage: Be gentle while separating the halves to prevent breaking the red and black wound wire speaker cable that bridges both halves.

On units that have not been opened, the wires are often held to the silver plate on the right by yellow tape. Carefully remove the yellow tape first. Save the tape if it can be reused. If it cannot be reused, you can leave the wires as shown, when you reinstall the connector, or you can use a new piece of yellow tape to fasten the wires to the silver plate as they were originally fastened.

Wm Neal Lewis - 01/07/20

Schritt 7

Using tweezers, squeeze the plastic head of the black and red wound wire cable. This will detach the cable from the circuit board and fully separate the two halves.

Schritt 8

Gently peel off the protective yellow tape covering the ribbon cable using tweezers or your fingers.
ATTENTION: Save the tape for reassembly.

Schritt 9

Using tweezers flip up the black plastic snap covering the small ribbon cable.
Using tweezers gently pull out the ribbon cable to detach it from the circuit board.

Schritt 10

With the screen facing down. Use the Phillips 00 screwdriver attachment to remove the silver, 0.124 inch long screw on the left side of the circuit board above the ribbon cable.
WARNING: Do not over-tighten the screw during reassembly.

Schritt 11

Pivot the circuit board away from the casing keeping the screen face down.
Gently peel away the tape holding the ribbon cable to the screen.
ATTENTION: Save the tape for reassembly.

Schritt 12

Using tweezers flip up the black plastic snap covering the ribbon cable attached to the screen.
Gently pull out the ribbon cable freeing the circuit board from the casing.