HP DC7600 - HP Instructions d'installation

HP-00007-01, Appendix 3 22-Aug-2005

HP Restricted

Page 1

Appendix 3 Product End-of-Life Disassembly instructions – rev a

Product Identification:

Marketing Name / Model Description

HP Compaq Business PC dc7600 series - SFF HP business desktop PC

Purpose: The document is intended for use by end-of-life recyclers or treatment facilities. It provides the

basic instructions for the disassembly of HP products to remove components and materials requiring

selective treatment.

1.0 Items Requiring Selective Treatment

1.1 Items listed below are classified as requiring selective treatment.

1.2 Enter the quantity of items contained within the product which require selective treatment in

the right column, as applicable.

Item Description

Notes

Qty items in

product.

Printed Circuit Boards (PCB) or Printed

Circuit Assemblies (PCA)

With a surface greater than 10

square cm

2 (sys bd, power

supply PCA)

Batteries All types including standard

alkaline and lithium coin or button

style batteries

Mercury containing components For example, mercury in lamps,

display backlights, scanner lamps,

switches, batteries

Liquid Crystal Displays (LCD) with a

surface greater than 100 square cm

Includes background illuminated

displays with gas discharge lamps

Cathode Ray Tubes (CRT)

Capacitors / condensers (Containing

PCB / PCT)

Electrolytic Capacitors / Condensers

measuring greater than 2.5 cm in

diameter or height

6, 4, or 2

depending on

power supply

External electrical cables and cords PSU cables, IDE cables, SATA

cables.

Gas Discharge Lamps

Plastics containing Brominated Flame

Retardants

Components and parts containing toner

and ink, including liquids, semi-liquids

(gel/paste) and toner

Include the cartridges, print

heads, tubes, vent chambers, and

service stations.

Components and waste containing

asbestos

Components, parts and materials

containing refractory ceramic fibers

Components, parts and materials

containing radioactive substances

HP-00007-01, Appendix 3 22-Aug-2005

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2.0 Tools Required

List the type and size of the tools that would typically be used to disassemble the product to a

point where components and materials requiring selective treatment can be removed.

Tool Description Tool Size (if applicable)

Small flat blade screwdriver

Phillips screwdriver

Pry bar 6- to 8-inch

Diagonal cutters (dikes)

3.0 Product Disassembly Process

3.1 List the basic steps that should typically be followed to remove components and materials

requiring selective treatment:

SYSTEM BOARD

1 To remove the computer cover:

a) Press the buttons on the left and right sides of the computer.

b) Slide the computer cover towards the front of the computer until it stops, and then lift it

up and off the chassis.

2 Remove the fan shroud by lifting the shroud straight up out of the computer (see Figure 2

below)

3 Rotate the drive cage to its upright position (see Figure 3 below).

4 Rotate the power supply to its full upright position (see Figure 4 below).

5 Disconnect any cables from the system board and remove the cables from the computer.

6 Remove the long mounting screw that secures the system board tray to the chassis (see

Figure 5 below).

7 Slide the system board tray assembly toward the front of the chassis, about 1/4 inch and

lift the system board up and out of the chassis.

8 Pull the EMI gasket off of the rear wall of the chassis.

BATTERY

Locate the battery and battery holder on the system board. Depending on the type of

battery holder on the system board, complete the following instructions to remove the

battery:

TYPE 1 BATTERY HOLDER (see Figure 7 below)

Lift the battery out of the holder.

TYPE 2 BATTERY HOLDER (see Figure 8 below)

To release the battery from its holder, squeeze the metal clamp that extends above one

edge of the battery. When the battery pops up, lift it out.

TYPE 3 BATTERY HOLDER (see Figure 9 below)

Pull back on the clip that holds the battery in place, and then remove the battery.

HP-00007-01, Appendix 3 22-Aug-2005

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POWER SUPPLY

1 Remove the security clip (see Figure 10 below).

NOTE: The security clip is an optional feature and is not installed on all computers.

2 Rotate the drive cage up and disconnect the power cables from all devices.

3 Release the power supply cable from the cable retaining clips on the bottom of the chassis

under the drive cage.

4 If required, disconnect the hood sensor from the system board and remove the sensor

from the power supply by sliding the hood sensor switch mounted on the power supply

toward the outside of the computer and lowering it through the slot (see Figure 11 below).

NOTE: The hood sensor is an optional feature and is not installed on all computers.

5 Rotate the power supply to its full upright position, and then lift the power supply straight

up and out of the chassis (see Figure 12 below).

POWER SUPPLY PRINTED CIRCUIT ASSEMBLY

1 Remove the screws that secure the covers to the power supply

(see Figures 13 & 14 below).

NOTE: Power supply screw quantity and location may vary.

NOTE: You do not need to remove the screws from the fan guard or the power connector.

2 Remove the top cover of the power supply. Note that there may be tabs that secure the

top cover to the power supply chassis. If the tabs are on top, you may need to use a small

flat blade screwdriver to loosen the tabs (see Figure 15 below).

3 Cut the plastic cable clamp that secures the main set of wires to the power supply chassis

(see Figure 16 below).

4 If applicable, remove the power supply side panel.

5 Using diagonal cutters (dikes), cut the blue and brown power connector wires and cut or

unplug the black fan wire (see Figure 17 below).

6 Remove the screws that secure the PCA to the power supply chassis

(see Figure 18 below).

NOTE: Screw quantity and location may vary.

7 Slide the PCA out of the power supply.

8 There are three different power supply PCAs. Refer to Figures 19 to 26 to determine

which PCA you have and the capacitors you must cut from the board.

9 If you have PCA 3 (see Figure 23), using a pry bar or screwdriver, pry the metal shield to

gain access to the large capacitor underneath it (see Figure 25 below).

10 If you have PCA 3, cut the large capacitor from the board (see Figure 26 below).

HP-00007-01, Appendix 3 22-Aug-2005

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3.2 ILLUSTRATIONS

FIGURE 1: Removing the computer cover

FIGURE 2: Removing the fan shroud

FIGURE 3: Rotating the drive cage to its

upright position

FIGURE 4: Rotating the power supply to its full

upright position

HP-00007-01, Appendix 3 22-Aug-2005

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FIGURE 5: Removing the system board

mounting screw

FIGURE 6: Lifting the system board out of the

chassis

FIGURE 7: Type 1 battery holder

FIGURE 8: Type 2 battery holder

HP-00007-01, Appendix 3 22-Aug-2005

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FIGURE 9: Type 3 battery holder

FIGURE 10: Removing the security clip

FIGURE 11: Removing the hood sensor FIGURE 12: Removing the power supply

HP-00007-01, Appendix 3 22-Aug-2005

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FIGURE 13: Power supply screw locations

(may vary)

FIGURE 14: Power supply screw location

(may vary)

FIGURE 15: Top panel tabs (may vary) FIGURE 16: Cut plastic cable clamp

HP-00007-01, Appendix 3 22-Aug-2005

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FIGURE 17: Wires to cut or unplug (location

may vary)

FIGURE 18: PCA screw locations (may vary)

FIGURE 19: Power supply PCA 1 FIGURE 20: Cut two capacitors – PCA 1

HP-00007-01, Appendix 3 22-Aug-2005

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FIGURE 21: Power supply PCA 2

FIGURE 22: Cut six capacitors – PCA 2

FIGURE 23: Power supply PCA 3

FIGURE 24: Cut three capacitors – PCA 3

HP-00007-01, Appendix 3 22-Aug-2005

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FIGURE 25: Pry this metal shield FIGURE 26: Cut large capacitor

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