HP Pro 3420 PC Maintenance & Service Guide - Page 78

Display Panel

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Display Panel Description Display panel, 20.5-inch, non-ZBD, CMI Display panel, 20.5-inch, non-ZBD, Samsung Display panel, 20.5-inch, non-ZBD, LG Spare part number 665474-001 665473-001 665472-001 The display panel is secured to the display bracket with four screws. The location of the screws depends upon the display panel manufacturer. Some are on top and bottom, some are on each side. This procedure continues the previous section that shows how to remove the bezel while removing a minimum number of components. Determining panel manufacturer Remove the rear cover to determine the panel manufacturer by looking at the cable that connects from the panel to the converter board as follows: (1) FFC cable = LG panel (2) Wired cable = Samsung panel To remove the display panel: 1. Prepare the computer for disassembly (see Preparing to Disassemble the Computer on page 33). 2. Remove the rear cover (see Rear Cover on page 34). 3. Remove the system board cover (see System Board Cover on page 49). 4. Remove the front bezel (see Front Bezel on page 69). 70 Chapter 7 Removal and Replacement Procedures All-in One (AIO) Chassis

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Display Panel
Description
Spare part number
Display panel, 20.5-inch, non-ZBD, CMI
665474-001
Display panel, 20.5-inch, non-ZBD, Samsung
665473-001
Display panel, 20.5-inch, non-ZBD, LG
665472-001
The display panel is secured to the display bracket with four screws. The location of the screws
depends upon the display panel manufacturer. Some are on top and bottom, some are on each side.
This procedure continues the previous section that shows how to remove the bezel while removing a
minimum number of components.
Determining panel manufacturer
Remove the rear cover to determine the panel manufacturer by looking at the cable that connects
from the panel to the converter board as follows:
(1)
FFC cable = LG panel
(2)
Wired cable = Samsung panel
To remove the display panel:
1.
Prepare the computer for disassembly (see
Preparing to Disassemble the Computer
on page
33
).
2.
Remove the rear cover (see
Rear Cover
on page
34
).
3.
Remove the system board cover (see
System Board Cover
on page
49
).
4.
Remove the front bezel (see
Front Bezel
on page
69
).
70
Chapter 7
Removal and Replacement Procedures All-in One (AIO) Chassis