HANNspree ST42DMSB User manual

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Overview:
The purpose of this manual is to guide Nexicore technicians through the proper procedures for
proper replacement of all major components of the unit.
Table of Contents:
1. Stand Removal
2. Wall Mount Removal
3. Back Cover Removal
4. Power Supply Unit Replacement
5. Main Board Replacement
6. Keyboard Replacement
7. LED/IR Board Replacement
Required Tools:
Non-marking Pry Tool
Phillips Head Screwdriver
Anti-Static Wrist Strap
Kapton Tape or Electrical Tape
Hannspree (ST42DMSB) 42 inch LCD TV Service Manual
servicing the Hannspree 42 inch LCD televisions. Utilizing this manual will assist technicians with
Hannspree 42" LCD TV model number ST42DMSB
Ant-Static Mat
3/16" Nut Driver

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1. Stand Removal
•To ensure no damage to the front LCD Panel, gently place unit face down on padded
anti-static mat with the stand hanging over the edge of the work surface.
(Figure 1)
(Figure 2)
Hannspree 42 inch LCD Television Service Manual
•Remove the 6 screws that secure the stand to the unit.

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•Slide stand from unit by gently pulling it towards you.
(Figure 3)
Hannspree 42 inch LCD Television Service Manual

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2. Wall Mounting Bracket Removal
•To ensure no damage to the front LCD Panel, gently place unit face down on padded
anti-static mat.
•Remove the 4 screws that secure the wall mounting bracket (wall mounting bracket not
pictured here).
(Figure 4)
•Gently remove the bracket from the unit.
Hannspree 42 inch LCD Television Service Manual

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3. Back Cover Removal
•To ensure no damage to the front LCD Panel, gently place unit face down on padded
anti-static mat.
(Figure 5)
Hannspree 42 inch LCD Television Service Manual
•Remove the 10 screws from the perimeter of the back cover.
The screw located in the bottom right corner may be covered by a piece of tape.

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(Figure 6)
The keyboard is attached to the back cover on this model.
Caution: when removing the back cover you will need to unplug the keyboard.
•Next, remove the remaining 1 screw from the center of the input jack area.
•Remove the cable and carefully lift the back cover from the unit.

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4. Power Supply Unit Replacement
•Remove Back Cover.
(Figure 7)
Hannspree 42 inch LCD Television Service Manual
•Disconnect the3cables attached to the Power Supply Unit (PSU).

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•Figure 8 shows all cables removed from the PSU.
(Figure 8)
Hannspree42inch LCD Television Service Manual

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(Figure 9)
•Gently lift the PSU from the mount.
•To reinstall the PSU place unit on mount ensuring screw holes line up properly.
•Reconnect all cables.
Hannspree42inch LCD Television Service Manual
•Remove the 4screws securing the PSU board to the mount.
•Reinstall the 4screws.

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5.Main Board Replacement
•Remove Back Cover.
•Disconnect all cables from Main Board.
(Figure 10)
Hannspree42inch LCD Television Service Manual
TheLVDScablehassecuringtapeholdingitinplace.Youmustpeelthetapebacktoexpose
the connector, once exposed push in on the two black tabs and gently remove the LVDS cable