Brother P-Touch QL-570 Service Manual page 5

[ 3 ] Installing the Mecha ASSY ............................................................................. III-35
[ 4 ] Installing the Upper Cover .............................................................................. III-36
[ 5 ] Installing the Panel Cover............................................................................... III-39
[ 6 ] Installing the Side Cover L, R ......................................................................... III-42
[ 7 ] Installing the Media PCB ASSY...................................................................... III-44
[ 8 ] Installing the Sub ASSY Inlet.......................................................................... III-44
[ 9 ] Installing the Power supply ASSY and Main PCB ASSY ............................... III-46
[ 10 ] Installing the Front Cover and Tray S............................................................. III-50
[ 11 ] Installing the Top Cover and Thermal Tape ................................................... III-51
[ 12 ] Demonstration Print and Final Check............................................................. III-53
CHAPTER IV TROUBLESHOOTING AND ERROR MESSAGE ........................ IV-1
4.1 PRECAUTIONS ........................................................................................................ IV-1
4.2 AFTER REPAIRING.................................................................................................. IV-1
4.3 LED CONTROL IN DIFFERENT SITUATIONS AND MEASURE AGAINST
ERRORS................................................................................................................... IV-2
4.4 ERROR MESSAGE .................................................................................................. IV-3
4.5 TROUBLESHOOTING FLOWS ................................................................................ IV-6
[ 1 ] Printing is performed with specific dots omitted ............................................. IV-6
[ 2 ] The tape is not detected correctly .................................................................. IV-7
[ 3 ] LED does not turn on...................................................................................... IV-8
[ 4 ] No printing is performed ................................................................................. IV-9
[ 5 ] The interface malfunction ............................................................................... IV-9
[ 6 ] The tape is not cut .......................................................................................... IV-10
[ 7 ] The tape is not fed correctly ........................................................................... IV-11
APPENDIX 1 MAINTENANCE SOFTWARE OPERATION ................................ 1
APPENDIX 1.1 Purpose and Use Procedure of the Reset Software Tool
(ql500tstReset.exe) ................................................................................. 3
APPENDIX 1.2 Setting and Use Procedures of the Maintenance Software Tool
(ql570tstSE.exe)...................................................................................... 6
APPENDIX 1.3 Use Procedure of the VR Adjustment Tool
(ql500tstVRAdjust.exe) ........................................................................... 25
APPENDIX 1.4 Auto Power-OFF Setting Tool
(autopoff.exe)........................................................................................... 31
iii