Partner OT-310 User manual

OT-310
Handheld POS Terminal
Service Manual

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Table of Contents
Troubleshooting Guide .....................................................................1
Access Diagnostic Program .......................................................................... 1
LCD RGB ...................................................................................................... 2
LCD Backlight ............................................................................................... 4
Switch Key .................................................................................................... 6
Touch Panel .................................................................................................. 10
SD Card ........................................................................................................ 13
Rear Camera ................................................................................................ 15
MSR .............................................................................................................. 17
Barcode ........................................................................................................ 20
LED ............................................................................................................... 24

TROUBLESHOOTING GUIDE: Access Diagnostic Program
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Troubleshooting Guide
When repairing OT-310, you can test the major components by using the Diagnostic
Program. To access the Diagnostic Program, do the following:
Access Diagnostic Program
1. Touch the Home key( ) to return to the Home screen. Then touch Function
Test to launch the Diagnostic Program.
2. The Diagnostic Program appears on the screen. Then select the desired test
mode.

TROUBLESHOOTING GUIDE: LCD RGB
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LCD RGB
To test the LCD, do the following:
1. Touch the LCD RGB button.
2. After the LCD test is complete, select Pass or Fail.
LCD Checking Flowchart
If the LCD test fails, perform the following:

TROUBLESHOOTING GUIDE: LCD RGB
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Circuit Diagram and Related Scanning Circuit Board
[Check point: LCD Connector (CON8)]
[Check point: Power suppy for LCD]

TROUBLESHOOTING GUIDE: LCD Backlight
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LCD Backlight
To test the LCD backlight, touch the Backlight button.
LCD Backlight Checking Flowchart
If the LCD backlight is not working normally, perform the following:

TROUBLESHOOTING GUIDE: LCD Backlight
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Circuit Diagram and Related Scanning Circuit Board
[Check point: LCD Backlight (CON8)]

TROUBLESHOOTING GUIDE: Switch Key
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Switch Key
To test the Switch key, touch the Switch button.
Switch Checking Flowchart
a. If the Volume Up / Volume Down / F1 / F2 key is not working normally, perform the
following:

TROUBLESHOOTING GUIDE: Switch Key
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b. If the Power key is not working normally, perform the following:
Circuit Diagram and Related Scanning Circuit Board
[Check point: Volume Up / Volume Down / F1 / F2 key]

TROUBLESHOOTING GUIDE: Switch Key
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[Check point: Volume Up / Volume Down / F1 / F2 key (continue)]