Kennmex MPOS50-8B-LX800 User manual

1/55 Rev.1.1
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2/55 Rev.1.1
Copyright Notice
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.
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.
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.
Trademarks
AMD is a registered trademark of AMD Corporation. Award is registered trademarks of
Phoenix Technologies LTD. Other product names mentioned herein are used for identification
purposes only and may be trademarks and/or registered trademarks of their respective
companies.

3/55 Rev.1.1
Contents
Chapter 1 Troubleshooting ..................................................................................................................... 6
1.1 Symptoms and Solutions.................................................................................................... 6
1.2 BIOS Upgrade .................................................................................................................... 10
Chapter 2: Disassembly, Assembly..................................................................................................... 16
2.1 Main Unit.............................................................................................................................. 16
2.1.1 Touch Panel + Touch Screen Holder................................................................... 16
2.1.2 LCD, AUO 8.4”........................................................................................................ 21
2.1.3 LCD Chassis........................................................................................................... 22
2.1.4 M/B ........................................................................................................................... 23
2.1.5 EMI A/D Cover........................................................................................................ 24
2.1.6 Speaker Module...................................................................................................... 25
2.1.7 Inverter..................................................................................................................... 26
2.1.8 Inverter Cover......................................................................................................... 27
2.1.9 51 I/O Board............................................................................................................ 27
2.1.10 LCD Rear Cover..................................................................................................... 28
2.1.11 I/O Cover ................................................................................................................. 28
2.1.12 MSR Module Base+ Power Button...................................................................... 28
2.1.13 MSR Reader Module Cover ................................................................................. 29
2.1.14 52 I/O Board............................................................................................................ 29
2.1.15 Battery Module........................................................................................................ 29
2.1.16 Handheld Belt ......................................................................................................... 30
2.2 Cables.................................................................................................................................. 30
2.2.1 Cable, M/B to Inverter............................................................................................ 30
2.2.2 Cable, M/B To LCD................................................................................................ 31
2.2.3 Cable, M/B To LED................................................................................................. 32
2.2.4 Cable, M/B To I/O Connector ............................................................................... 33
2.3 Accessories......................................................................................................................... 34
2.3.1 MSR.......................................................................................................................... 34
2.3.2 Smart Card.............................................................................................................. 37
2.3.3 Barcode Scanner.................................................................................................... 41
2.3.4 WLAN IEEE............................................................................................................. 44
2.3.5 WLAN Bluetooth..................................................................................................... 45
2.3.6 Compact Flash........................................................................................................ 45
2.3.7 Memory.................................................................................................................... 45
Chapter 3 Spare Parts........................................................................................................................... 46
3.1 Main Unit.............................................................................................................................. 47

4/55 Rev.1.1
3.1.1 Explode of Main Unit.............................................................................................. 47
3.1.2 Main Unit Parts List & Quotation.......................................................................... 47
3.2 Battery Module.................................................................................................................... 49
3.2.1 Explode of Battery Module.................................................................................... 49
3.2.2 Battery Module Parts List & Quotation................................................................ 49
3.3 Recharge Cradle................................................................................................................ 50
3.3.1 Explode of Recharge Cradle................................................................................ 50
3.3.2 Recharge Cradle Part List & Quotation.............................................................. 50
3.4 Accessories......................................................................................................................... 54
3.4.1 Power Cord ............................................................................................................. 54
3.4.2 Memory.................................................................................................................... 54
3.4.3 Compact Flash........................................................................................................ 55
3.4.4 MSR.......................................................................................................................... 55
3.4.5 Smart Card.............................................................................................................. 55
3.4.6 Barcode Scanner.................................................................................................... 55
3.4.7 OS............................................................................................................................. 55
3.4.8 Wireless LAN.......................................................................................................... 55

5/55 Rev.1.1
Chapter 1
CHAPTER
Troubleshooting

6/55 Rev.1.1
Chapter 1 Troubleshooting
1.1 Symptoms and Solutions
Error Code Symptom Check Points Detail Steps
3200 NO BOOT with
Power On
1. Battery
2. RAM
3.MB
1. Check LED Light (Upper Left) should be on
2. If yes to item 1, check if Battery is well plugged on the
battery module
3. If yes to item 2, replace with another Battery for testing
4. If still fail, remove battery module/ remove MSR
module base/ I/O Cover, open rear cover, open EMI
chassis, remove inverter cable on M/B (CN1), check if
RAM well plugged on the memory slot
5. Check golden finger cleanness, if not clean, use pencil
eraser to clean golden finger
6. If fail, replace with another RAM for testing
7. If fail, replace with another mother board for testing
8. If fail, RMA system to manufacturer
3100 NO POWER
1. Recharge cradle
2. Battery
3. Power button cable
4. 52 I/O board
5. M/B to I/O connector
cable
6. MB
1. Check if main unit is well plugged or not( The LED at
right hand side will show orange/ green color if it is
plugged correctly)
2. If the LED is on, check if Battery is well plugged on the
battery module
3. If yes to item 2, push the power button to see if the LED
light is on(Upper left)
4. If the LED light is not on, check if power button cable is
well plugged or not
5. If yes to item 4, replace with another power button cable
6. If fail, check if 52 I/O board is well plugged or not
7. If yes to item 6, replace with another 52 I/O board
8. If still fail, check if M/B to I/O cable if well plugged or
not( MB CN32 and CN13)
9. If yes to item 8, replace with another I/O cable
10. If fail, replace with another mother board for testing
11. If still fail, RMA system to manufacturer

7/55 Rev.1.1
Error Code Symptom Check Points Detail Steps
3201 System HANG
Up
1. CF
2. RAM
3. MB
1. Shut Down Power, remove battery module/ remove
MSR module base/ I/O Cover, open rear cover, check if
CF is well plugged or not
2. If yes to item 1, open EMI chassis, remove inverter
cable on M/B (CN1), check if check if RAM well plugged on
the memory slot
2. Check golden finger cleanness, if not clean, use pencil
eraser to clean golden finger
3. If fail, replace with another RAM for testing
4. If fail, replace with another MB for testing
5. If fail, System RMA to manufacturer
3300 LCD Blank
1. Inverter
2. MB
3. M/B to LCD cable
1. Shut Down Power, remove battery module/ remove
MSR module base/ I/O Cover, open rear cover, open
inverter cover, replace with another inverter for testing
2. If fail, check if LCD signal cable well connected on
MB(CN2)
3. If yes to item 2, replace with another MB for testing
4. If fail, replace with another LCD signal cable for testing
5. If fail, System RMA to manufacturer
3301 LCD Turn Black
1. Inverter
2. Inverter Cable
3. MB
4. M/B to LCD cable
5.LCD
1. Shut Down Power, remove battery module/ remove
MSR module base/ I/O Cover, open rear cover, open
inverter cover, check if inverter to LCD cable is well
plugged or not.
2. If yes to item 1, replace with another inverter for testing
2. If fail, is, remove EMI cover, check if inverter cable well
connected between MB(CN1) and inverter
3. If yes, replace with another inverter cable for testing
4. If fail, check if LCD signal cable well connected on
MB(CN2)
5. If yes, replace with another MB for testing
6. If fail, replace with another LCD signal cable for testing
8. If fail, replace another LCD for testing
9. If fail, System RMA to manufacturer

8/55 Rev.1.1
Error Code Symptom Check Points Detail Steps
3601
Unable to
detect CF /
Unstable CF
1. CF Card
2. CF Slot
3. MB
1. Shut Down Power, remove battery module/ remove
MSR module base/ I/O Cover, open rear cover, open EMI
chassis, remove inverter cable on M/B (CN1),
3. Check if CF Card well connected with CF Slot
4. If yes to item 3, remove CF card, check if pins on CF
slot located at the correct position
5. If CF slot is damaged, go to item 7; if CF slot is not
damaged go to item 6
6. If yes to item 4, replace with another CF card for testing
7. If fail, replace with MB for testing
8 If fail, system RMA to manufacturer
3602 Data Can’t read
and write
1. CF
2. MB
1. Shut Down Power, remove battery module/ remove
MSR module base/ I/O Cover, open rear cover, open EMI
chassis, remove inverter cable on M/B (CN1), check if CF
Card well connected with CF Slot
2. If yes to item 2, replace with another CF card for testing
3. If fail, replace with MB for testing
4 If fail, system RMA to manufacturer
3500 CMOS
checksum error 1. MB
1. Shut Down Power, remove battery module/ remove
MSR module base/ I/O Cover, open rear cover, open EMI
chassis, remove inverter cable on M/B (CN1), replace with
another MB for testing
2. If fail, system RMA to manufacturer
3400 Touch
malfunction
1. Driver (NA)
2. Touch to.MB cable
3. MB
4. Touch panel
1. Reinstall touch driver
2. If fail, shut down power, remove battery module/ remove
MSR module base/ I/O Cover, open rear cover, open EMI
chassis, remove inverter cable on M/B (CN1), check if
touch panel cable well connected with MB
3. If yes to item 2, replace with another MB for testing
4. If fail, replace with another touch panel for testing
5. If fail, RMA system to manufacturer

9/55 Rev.1.1
Error Code Symptom Check Points Detail Steps
3700
Boot Up, USB
K/B
Malfunction
1. USB Keyboard
3. MB
1. Check if USB keyboard cable well connected with USB
port
2. If yes to item 2, replace with another keyboard(same
model) for testing
3. If fail, replace with another keyboard(other model) for
testing
4. If fail, shut down power, remove battery module/ remove
MSR module base/ I/O Cover, open rear cover, open EMI
chassis, remove inverter cable on M/B (CN1), replace with
another MB for testing.
7. If fail, system RMA to manufacturer
3701 MSR
Malfunction
1. MSR to 52 I/O board
Cable
2. MSR
3. MB
1. Shut down power, remove battery module, check if MSR
cable well connected with 52 I/O Board
2. If yes to item 2, replace with another MSR for testing
3. If fail, open rear cover, open EMI chassis, remove
inverter cable on M/B (CN1), replace with another MB for
testing
4. If fail, RMA MSR to manufacturer
3703 USB Device
Malfunction
1. Device USB cable
3. MB
1. Check if USB keyboard cable well connected with USB
port
2. If yes to item 2, replace with another keyboard(same
model) for testing
3. If fail, replace with another keyboard(other model) for
testing
4. If fail, shut down power, remove battery module/ remove
MSR module base/ I/O Cover, open rear cover, open EMI
chassis, remove inverter cable on M/B (CN1), replace with
another MB for testing.
7. If fail, system RMA to manufacturer

10/55 Rev.1.1
1.2 BIOS Upgrade
1.2.1 Equipment List:
-USB Floppy Disk* 1 set
-Keyboard* 1 set,
-1.44MB Floppy Boot up Disk*1
-BIOS file
1.2.2 Upgrade Process
Make a start up disk and copy BIOS and EXE file
Item Photo Description
1 1. Put empty 1.44MB disk into
USB floppy disk
2. Plug the disk into another
computer with XP OS
installed
3. Click “My Computer”. The
new device “Floppy A” will
show on the screen
2 1. Right click floppy disk and
select “Format”
3 1. Click “Create an MS-DOS
startup disk”
2. Click “Start”