54
4. LCD abnormal display
YES
YES
NO
YES
NO
YES
NO
YES
Replace LCD and make bad marks.
make bad marks
Adjust LCD and the structural parts
LCD abnormal display
Check if the display part of LCD is
damaged.
make bad marks
Check if LCD is related to structural
parts.
make bad marks
Check if LCD
’s soldering part is OK
Re-solder LCD and TP
’s soldering
parts
make bad marks
Repair the MB referring to the
troubleshooting guide for L3 repair
OK
Replace MB
Summary of Contents for HARLEY TAB A3-A20
Page 1: ...1 HARLEY TAB A3 A20 A3 A20FHD SERVICE GUIDE ...
Page 9: ...4 Tablet Tour Six View ...
Page 13: ...8 Bottom View Figure 1 4 Bottom View ...
Page 15: ...10 Right View Figure 1 6 Right View ...
Page 16: ...11 System Block Diagram ...
Page 25: ...20 Operating demonstration as below ...
Page 29: ...24 Always install this driver program software I ...
Page 32: ...27 3 3 Config parameters ...
Page 33: ...28 Password 20120405 ...
Page 35: ...30 3 4 Write Number 3 4 1 Enter operation interface input CSN Number and Click Write button ...
Page 40: ...35 Select Connectivity tab choose item Wifi See Figure 2 Figure 2 ...
Page 41: ...36 Choose item Tx see Figure 3 Figure 3 ...
Page 43: ...38 Figure 5 ...
Page 68: ...63 CHAPTER 4 Diagnostic Tool SOP Diagnostic Tool SOP Product Team Date 2014 07 29 ...
Page 79: ...74 Test result interface as below ...
Page 81: ...76 Picture A Picture B Picture C ...
Page 105: ...100 Exploded Diagram and Description ...
Page 106: ...101 ...