EBN Technology TM50A-5B-VR User manual

Service Manual
TM50A-5B-VR/VU
WTM50A-5B-VR/VU
TM50A-2B-VR/VU
WTM50A-2B-VR/VU

Copyrights i
Copyrights
©2012 All rights reserved. The information in this
document is subject to change without prior notice in
order to improve reliability, design and function and does
not represent a commitment on the part of the
manufacturer.
This document contains proprietary information
protected by copyright. All rights are reserved. No
part of this manual may be reproduced by any
mechanical, electronic, or other means in any form
without prior written permission of the manufacturer.
All trademarks are property of their respective
owners
Liability Disclaimer
In no event will the manufacturer be liable for direct,
indirect, special, incidental, or consequential
damages arising out of the use or inability to use the
product or documentation, even if advised of the
possibility of such damages.
The information in this document is subject to
change without notice

Contents
ii
Contents
Copyrights .................................................................................................i
Liability Disclaimer ...................................................................................i
Contents....................................................................................................ii
1. Before You Start ...................................................................................1
2. Base Unit Separating ...........................................................................2
3. The Main Unit........................................................................................4

Chapter 1 1
1.
1. Before You Start
1. Please unplug the power cable before you start to work.
2. Please read and follow the instructions in this document carefully. Failure to
follow these instructions could damage your device and void the warranty.
1.1. Tools Suggested
All procedures in this document require the following tools:
#0 Phillips screwdriver #1 Phillips screwdriver
(magnetized suggested) (magnetized suggested)
1.5 mm hexagon socket spanner
(magnetized suggested)

Chapter 2
2
2.
2. Base Unit Separating
1. Adjust the main unit to the position as shown below.
2. Loosen and remove the four screws fixing the base unit by #1 Phillips screwdriver.
3. Remove the right hinge cover, left hinge cover and support cover as shown below.

Chapter 2 3
4. Remove the five screws.
5. Remove the base unit.

Chapter 3
4
3.
3. The Main Unit
Following steps are for TM50A-5B-VR/VU and WTM50A-5B-VR/VU:
1. Loosen and remove the eight screws in blue circles as shown below by
#1 Phillips screwdriver and then remove the rear panel from the LCD
assembly.
2. Loosen and remove the four screws in blue circles as shown below by
#1 Phillips screwdriver.
3. Loosen and remove the eight hexagonal bolts fixing COM port and the
VGA port in the blue rectangle by hexagon socket spanner and then
remove the EMI cover

Chapter 3 5
4. Unplug: 1. LCD panel cable, 2. speaker cable, 3. LED indicator, 4.
inverter cable, 5. MSR cable and 6. touch cable.
5. Loosen and remove the five screws and then remove the LCD control
board.
6. Remove the LED indicator.
7. Loosen the four screws to remove the speaker.

Chapter 3
6
8. Unplug the three connectors from the LCD inverter.
9. Loosen the three screws and remove the LCD inverter.
10. Loosen the two screws and remove the LED lens.
11. Loosen the ten screws, and then take out the LCD assembly.

Chapter 3 7
12. Loosen the three screws to remove the touch panel.
13. Loosen the four screws to remove the LCD panel from the LCD
chassis.
14. On the back side of the LCD panel, remove the black tape and unplug
the LCD cable.
15. Loosen the two screws on both sides of the LCD panel to remove the LCD chassis.

Chapter 3
8
Following steps are for TM50A-2B-VR/VU and WTM50A-2B-VR/VU
1. Loosen and remove the eight screws in blue circles as shown below by
#1 Phillips screwdriver and then remove the rear panel from the LCD
assembly.
2. Loosen and remove the four screws in blue circles as shown below by
#1 Phillips screwdriver.
3. Loosen and remove the eight hexagonal bolts fixing COM port and the
VGA port in the blue rectangle by hexagon socket spanner and then
remove the EMI cover

Chapter 3 9
4. Unplug: 1. LCD panel cable, 2. speaker cable, 3. LED indicator and 4.
touch cable.
5. Loosen and remove the five screws and then remove the LCD control
board.
6. Remove the black tape.
7. Remove the LED indicator.

Chapter 3
10
8. Loosen the four screws to remove the speaker.
9. Unplug the two connectors from the LCD inverter.
10. Loosen the three screws and remove the LCD inverter.
11. Loosen the two screws and remove the LED lens.

Chapter 3 11
12. Loosen the eight screws, and then take out the LCD assembly.
13. Loosen the two screws to remove the touch panel.
14.Loosen the four screws to remove the LCD panel from the LCD
chassis.
15. On the back side of the LCD panel, remove the black tape and unplug
the LCD cable.