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Proprietary & Confidential 

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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

Summary of Contents for ST42DMSB

Page 1: ...ver 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...

Page 2: ... 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 ...

Page 3: ...Proprietary Confidential Page 3 Slide stand from unit by gently pulling it towards you Figure 3 Hannspree 42 inch LCD Television Service Manual ...

Page 4: ...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 ...

Page 5: ...e 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 ...

Page 6: ...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 ...

Page 7: ...Proprietary Confidential Page 7 4 Power Supply Unit Replacement Remove Back Cover Figure 7 Hannspree 42 inch LCD Television Service Manual Disconnect the3 cables attached to the Power Supply Unit PSU ...

Page 8: ...Proprietary Confidential Page 8 Figure 8 shows all cables removed from the PSU Figure 8 Hannspree 42 inch LCD Television Service Manual ...

Page 9: ...ft the PSU from the mount To reinstall the PSU place unit on mount ensuring screw holes line up properly Reconnect all cables Hannspree 42 inch LCD Television Service Manual Remove the 4 screws securing the PSU board to the mount Reinstall the 4 screws ...

Page 10: ... Disconnect all cables from Main Board Figure 10 Hannspree 42 inch LCD Television Service Manual The LVDS cable has securing tape holding it in place You must peel the tape back to expose the connector once exposed push in on the two black tabs and gently remove the LVDS cable ...

Page 11: ...Proprietary Confidential Page 11 Figure 11 shows all cables disconnected from the Main Board Figure 11 Hannspree 42 inch LCD Television Service Manual ...

Page 12: ... attaching the jack plate Once the jack plate is removed the 6 screws attaching the power supply can be removed the VGA input jack The plastic trim piece can now be removed exposing the 3 remaining the component input area A 3 16 nut driver is needed to remove the 2 screws in Hannspree 42 inch LCD Television Service Manual ...

Page 13: ...Proprietary Confidential Page 13 Hannspree 42 inch LCD Television Service Manual ...

Page 14: ...Proprietary Confidential Page 14 Hannspree 42 inch LCD Television Service Manual The main board removed from the set ...

Page 15: ...Reconnect all the cables in their proper location then remount the jack plate using the same screws that were removed earlier Frame Rate Board Removal Remove the 5 wires connected to the board 3 of the cables require tabs to be pushed in to remove them Carefully push the tabs in and remove the cables Remove the 4 screws mounting the board in place Reverse the steps to reinstall the frame rate boar...

Page 16: ...lace the cover over the Keyboard and secure the 2 inner screws Place the Keyboard in slot and secure the 2 outer screws then reconnect the cable Hannspree 42 inch LCD Television Service Manual The keyboard is mounted inside the back cover Remove 2 outer screws and carefully lift the Keyboard from the back cover ...

Page 17: ...ential Page 17 7 LED IR Board Replacement Remove the Back Cover Remove the 2 screws securing the LED IR Board to the unit Gently lift the board up then disconnect the cable Hannspree 42 inch LCD Television Service Manual ...

Page 18: ... 18 Image 19 Hannspree 42 inch LCD Television Service Manual Remove the two screws securing the circuit board to the plastic mount the back cover of the TV To reinstall reverse the above steps then screw the mounted board back into ...

Page 19: ...Proprietary Confidential Page 19 Hannspree 42 inch LCD Television Service Manual ...

Page 20: ...Proprietary Confidential Page 20 Hannspree 42 inch LCD Television Service Manual ...

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