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xiv IBM 4685-K03 Installation, Operation and Maintenance Guide
DAILY CARE............................................................................................................................................................................ 12
CHAPTER 4 “REPLACING THE KEYS”............................................................................................................................. 15
REPLACING A SINGLE KEY ................................................................................................................................................ 15
REMOVAL.................................................................................................................................................................................... 15
ATTACHING ................................................................................................................................................................................. 16
REPLACING A DOUBLE KEY .............................................................................................................................................. 17
REMOVAL.................................................................................................................................................................................... 17
ATTACHING ................................................................................................................................................................................. 18
REPLACING A QUADRUPLE KEY...................................................................................................................................... 19
REMOVAL.................................................................................................................................................................................... 19
ATTACHING ................................................................................................................................................................................. 19
CHAPTER 5 “MAINTENANCE OF THE KEYBOARD”..................................................................................................... 21
IF PROBLEMS OCCUR......................................................................................................................................................... 21
DIAGNOSTIC TESTS............................................................................................................................................................. 22
SELF-DIAGNOSTIC TESTS............................................................................................................................................................ 22
REMOVING AND REPLACING PARTS............................................................................................................................... 24
REPLACING THE REAR COVER....................................................................................................................................................24
REPLACING THE CONTROL CARD ...............................................................................................................................................25
REPLACING THE MSR................................................................................................................................................................25
REPLACING THE MODE KEY ........................................................................................................................................................ 27
REPLACING THE SPEAKER..........................................................................................................................................................27
REPLACING THE TOP COVER ASSEMBLY.....................................................................................................................................27
BILL OF MATERIAL ............................................................................................................................................................... 28
ASSEMBLY: KEYBOARD..............................................................................................................................................................28
APPENDIX A. ACCESSORY UNIT ....................................................................................................................................... 31
ACCESSORY UNITS .....................................................................................................................................................................31
APPENDIX B. PRODUCT SPECIFICATIONS..................................................................................................................... 33
DIMENSIONS ...............................................................................................................................................................................33
CONSUMPTION CURRENT ........................................................................................................................................................... 33
ENVIRONMENT CONDITION..........................................................................................................................................................33
MSR READABLE CARDS..................................................................................................................................................... 33