AEA PK-232 Technical Reference Manual page 6

PK-232 TECHNICAL MANUAL
CHAPTER 5 - MECHANICAL ASSEMBLY AND DIS ASSEMBLY
Paragraph
5.1 Cover Removal .................................................................................. 5-1
5.2 Circuit Board Removal ....................................................................... 5-
5.3 Circuit Board Assembly ...................................................................... 5-2
5.4 Cover Assembly ................................................................................ 5-
6.1 Preliminary Setup .............................................................................. 6-1
6.2 Calibration Procedure ........................................................................ 6-
6.2.1 AFSK Generator (Transmit) Adjustments ................................... 6-2
6.2.2 Demodulator (Receive) Adjustments ........................................ 6-3
6.3 Functional Tests ................................................................................ 6-
7.1 Introduction ..................................................................................... 7-1
7.2 General Tests .................................................................................... 7-
7.2.1 Power Supply ......................................................................... 7-
7.2.2 Obvious Problems ................................................................... 7-2
7.2.3 Assembly Problems ................................................................. 7-
7.2.4 Cabling Problems .................................................................... 7-
7.3 Specific Symptoms ............................................................................ 7-
7.3.1 Symptom: Controller appears dead .......................................... 7-
7.3.2 Symptom: Modem cannot be calibrated .................................... 7-4
7.3.3 Symptom: Transmitter cannot be keyed ................................... 7-
7.3.4 Symptom: Transmitter signals not copyable by other stations ..... 7-
7.3.5 Symptom: Received signals not copyable .................................. 7-
7.4 Terminal Interface Troubleshooting ..................................................... 7-5
7.4.1 Symptom: Controller does not communicate with the terminal .... 7-
7.4.2 Symptom: Controller signs on with mutilated data ..................... 7-
7.4.3 Symptom: Controller does not respond or accept commands ..... 7-6
APPENDIX A - AX.25 LEVEL 2 PROTOCOL ..................................................... A
APPENDIX B - "KISS" TNC SPECIFICATION ................................................... B
APPENDIX C - DRAWINGS ........................................................................... C
APPENDIX D - WAVEFFORMS ....................................................................... D
PK232TM Rev. A 5/87
CHAPTER 6 - ADJUSTMENTS
CHAPTER 7 - TROUBLESHOOTING
TOC-3
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