HP Compaq dc7900 Convertible Minitower Business Product End-Of-Life Disassembly Instructions Download Page 1

EL-MF877-00                                                                                                Page  1 
Template Revision A 

 

 

  

  

Product End-of-Life Disassembly Instructions

 

Product Category: Personal Computers

 

Marketing Name / Model 
[List multiple models if applicable.] 

Name / Model #1: HP Compaq dc7900 Convertible Minitower Business PC 

Name / Model #2  

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, as defined by EU 
directive 2002/96/EC, Waste Electrical and Electronic Equipment (WEEE). 

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 

Quantity 
of items 
included 
in product

 

Printed Circuit Boards (PCB) or Printed Circuit 
Assemblies (PCA) 

With a surface greater than 10 sq cm 
         

2 to 4 (1 
sys board, 
1 to 3 P/S 
PCAs 

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 sq 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 

            

4, 5, or 9 in 
P/S 

External electrical cables and cords 

            

           

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 

            

           

Summary of Contents for Compaq dc7900 Convertible Minitower Business

Page 1: ...rcuit Boards PCB or Printed Circuit Assemblies PCA With a surface greater than 10 sq cm 2 to 4 1 sys board 1 to 3 P S PCAs Batteries All types including standard alkaline and lithium coin or button style batteries 1 Mercury containing components For example mercury in lamps display backlights scanner lamps switches batteries Liquid Crystal Displays LCD with a surface greater than 100 sq cm Include...

Page 2: ...nd 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 Description 1 Phillips screwdriver Description 2 Dikes Description 3 Torx screwdriver T 15 3 0 Product Disassembly Process 3 1 List the basic steps that should typically be followed to remove com...

Page 3: ...e the power supply PCA from the power supply chassis h Cut the small PCA from the large power supply PCA see Figure 13 i Cut 4 capacitors from the PCA as shown in Figure 13 POWER SUPPLY 2 a Using dikes cut the plastic clamp that secures the wires to the power supply cover b Using a phillips screwdriver remove the four screws that secure the cover to the power supply chassis two screws on top two s...

Page 4: ...EL MF877 00 Page 4 Template Revision A FIGURE 1 Removing the access panel FIGURE 2 Removing the front bezel FIGURE 3 Type 1 battery holder ...

Page 5: ...EL MF877 00 Page 5 Template Revision A FIGURE 4 Type 2 battery holder FIGURE 5 Type 3 battery holder FIGURE 6 Removing the system board ...

Page 6: ...EL MF877 00 Page 6 Template Revision A FIGURE 7 Removing the power supply screws FIGURE 8 Removing the power supply from the chassis ...

Page 7: ...EL MF877 00 Page 7 Template Revision A FIGURE 9 POWER SUPPLY 1 Cover screw locations FIGURE 10 POWER SUPPLY 1 Cover screw locations FIGURE 11 POWER SUPPLY 1 Top PCA screw locations ...

Page 8: ...EL MF877 00 Page 8 Template Revision A FIGURE 12 POWER SUPPLY 1 Large PCA screw locations FIGURE 13 POWER SUPPLY 1 Capacitors 4 to cut y ...

Page 9: ...EL MF877 00 Page 9 Template Revision A FIGURE 14 POWER SUPPLY 2 Cover screw locations FIGURE 15 POWER SUPPLY 2 Cover screw locations FIGURE 16 POWER SUPPLY 2 PCA screw locations ...

Page 10: ...EL MF877 00 Page 10 Template Revision A FIGURE 17 POWER SUPPLY 2 Capacitors 5 and small PCA to cut FIGURE 18 POWER SUPPLY 3 Cover screw locations FIGURE 19 POWER SUPPLY 3 Cover screw locations ...

Page 11: ...EL MF877 00 Page 11 Template Revision A FIGURE 20 POWER SUPPLY 3 Top PCA screw locations FIGURE 21 POWER SUPPLY 3 Large PCA screw locations FIGURE 22 POWER SUPPLY 3 Capacitors 9 and small PCA to cut ...

Page 12: ...EL MF877 00 Page 12 Template Revision A ...

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