Promax 27 Manuel page 78

5.2 Method of maintenance.................................................................................. 61
5.2.1 Cleaning the cover. ..................................................................................... 61
5.3 Components which user can not replace ....................................................... 62
5.3.1 Not replaceable fuses by user .................................................................... 62
APPENDIXES ................................................................................................................ 63
APPENDIX A.- MEASUREMENT OF THE MODULATION ERROR RATIO (MER). ... 63
APPENDIX B.- PRINCIPLE OF QAM MODULATION. THE CONSTELLATION
DIAGRAM ................................................................................................................ 65
APPENDIX C.- FREQUENCY OFFSET ADJUSTMENT FOR TUNING ANALOGUE
AND DIGITAL CHANNELS...................................................................................... 67
USER'S MANUAL. PROMAX-27