Product End-of-Life Disassembly Instr uctions
Product Category: Monitors and Displays
Marketing Name / Model
[List multiple models if applicable.]
HP LD4700 47-inch Widescreen LCD Digital Signage Display
Name / Model #3
Name / Model #4
Name / Model #5
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.
Quantity
of items
Item Description
Notes
included
in product
Printed Circuit Boards (PCB) or Printed Circuit
Assemblies (PCA)
With a surface greater than 10 square cm
6
Batteries
All types including standard alkaline and lithium coin
or button style batteries
3
Mercury containing components
For example, mercury in lamps, display backlights,
scanner lamps, switches, batteries
18
Liquid Crystal Displays (LCD) with a surface greater
than 100 square cm
Includes background illuminated displays with gas
discharge lamps
1
Cathode Ray Tubes (CRT)
0
Capacitors / condensers (Containing PCB / PCT)
0
Electrolytic Capacitors / Condensers measuring
greater than 2.5 cm in diameter or height
15
External electrical cables and cords
2
Gas Discharge Lamps
0
Plastics containing Brominated Flame Retardants
0
Components and parts containing toner and ink,
including liquids, semi-liquids (gel/paste) and toner
Components and waste containing asbestos
Include the cartridges, print heads, tubes, vent
chambers, and service stations.
0
0
Components, parts and materials containing refractory
ceramic fibers
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Components, parts and materials containing
radioactive substances
0
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)
screw driver
#2
3.0 Product Disassembly Process
3.1 List the basic steps that should typically be followed to remove components and materials requiring selective
treatment:
1
2
3
4
Unlock 10 screws to separate back cover assembly from cabinet assembly. [Fig.1]
Separate back cover control connector from speaker PCB P2. [Fig.2]
Detach tapes on harnesses and separate harnesses from module “A” , module “B”, SPK R P4. [Fig.3]
1) Unlock 2 screws to separate chassis from cabinet.
2) Unlock 4 screws to separate chassis from LCD module. [Fig. 4]
5
6
7
8
Disassemble the LCD module to the cabinet assy. [Fig. 5]
Unlock 5 screws to separate plate from supporter. [Fig. 6]
Unlock 6 screws to separate fan assembly from plate and unlock 6 screws to disassemble fan module from
Bracket. [Fig. 7]
1) Separate LVSD harness from main P120.
2) Separate 12P harness from power PCB P205.
9
10
3) Separate 14P harness from power PCB P204. [Fig. 8]
Unlock 3 screws to separate plate shield from Supporter [Fig. 9]
1) Separate 24P harness from main P201.
2) Separate SPK R 10P harness from main P101.
3) Unlock 1 screw to separate AC socket from supporter.
11
4) Unlock 7 screws to main PCB assembly from supporter. [Fig. 10]
1) Unlock 4 screws power PCB assembly from supporter.
12
13
2) Pull up the holder from power PCB Assembly. [Fig. 11]
Unlock 2 screws to separate speaker PCB assembly from supporter. [Fig. 12]
1) Separate 10P harness from speaker PCB assembly.
14
15
16
2) Unlock 2 screws to separate the speaker PCB assembly from plate. [Fig. 13]
Unlock 8 screws to separate plates. [Fig. 14]
Unlock 6 screws to separate plates. [Fig. 15]
Unlock 8 screws to separate plates. [Fig. 16]
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1.1
OPTIONAL: Depending upon the complexity of the disassembly process, a graphic depicting the locations of
items contained within the product which require selective treatment (with descriptions and arrows identifying
locations) can be inserted below:
[Fig.1]
P2
CONTROL PCB
in BACK COVER
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[Fig.2]
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“B”
“A”
P4
Separate harness
from 2P HOLDER
[Fig.3]
[Fig.4]
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[Fig.5]
[Fig.6]
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[Fig.7]
2
P204
3
P205
1
P120
[Fig.8]
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1
1
1
[Fig.9]
P201
4
4
4
P101
SC100
4
4
4
4
3
[Fig.10]
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1
1
Pull up the Holder
1
1
[Fig.11]
1
[Fig.12]
1
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[Fig.13]
[Fig.14]
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[Fig.15]
[Fig.16]
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Designation
Capacitors
Electrolytic
Capacitors
Main BD
N/A
2 ea
Inverter BD
N/A
3 ea
Power BD
N/A
8 ea
TCON BD
N/A
N/A
(larger than 2.5cm)
Procedures for panel lamp removal
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Method of Lamp Disassembly_LD420WUN-SAA1
Step 1 : Remove the Control
Cover Shield
Step 2 : Remove the Control PCB
Step 5 : Uncover the Board Assy
Step 3 : Remove the Top Case
Step 4 : Detach the Tape
Step6 : Remove the G/Panel & Optical Sheets
Step 7 : Unhook the Supporter Side
Disassembled EEFL Lamp
Step 8 : Pull the Lamp with both hands
Step 9 : Pull the Electrode