50
Chapter
4
CMX Controller Board
controller and the MECA ASIC provide the functionality of three separate
processors used in earlier controller board architectures. In this manual, the
80C166 is referred to as either the EC or the 166.
The 166 used on the CMX board runs at 20MHz and is housed in a 100-pin
metric rectangular flat pack.
Bus Configuration
The 166 bus is configured for 18-bit address, 16-bit data, non-multiplexed and
segmented operation. The flash memory runs with zero wait states. An
external PAL is used for address decoding.
Power Reduction
The 166 chip has two power reduction modes: idle and Energy Star. Idle
mode is not used. In Energy Star mode, +48V and all motors are de-
energized, but the 166 operates as normal.
EC Flash Memory
The EC stores all boot code, program code, and tables in its own local flash
memory. This flash is organized as 64K x16 bits and uses the same
technology as the DC flash: it is +5.0V-only and is rated for a minimum of
100,000 write/erase cycles. EC memory is fixed; it is soldered to the controller
board. Its contents can be updated through the DC (through the serial or
parallel ports). At run time, the EC also stores tables in shared DRAM, which
is accessed through the Cajun bus.
MECA ASIC
The 166 uses numerous counters, PWM generators, and FIFOs in the MECA
to control many printer motor functions. The MECA is a custom gate array,
specifically designed to drive this system.
Analog Drive Circuitry
The analog drive functions convert 48 and 8.5 volts into the power used to
drive the motors and hammers in the printer. Sensors are used to monitor the
operation and status of critical components within the printer.
The printer uses five motors: two ribbon drive, one paper feed, one platen
open, and one shuttle motor. The shuttle motor is a brushless DC motor
driven by current control. The MPU encoder is used as feedback for motor
commutations, hammer fire timing, and motor stall detection. The paper feed
motor is a DC stepping motor driven by current control. The paper feed motor
may be driven in full, half, or microsteps, depending on print requirements.
The ribbon system uses two DC stepping motors that alternate drive and drag
roles when the ribbon reaches turnaround. The drive ribbon motor is
microstepped in voltage mode, while the drag motor is loaded and monitored
to maintain correct linear speed and tension. The platen motor is driven in
current mode and can be full or half stepped. The overall current level may be
reduced for standby modes.
Содержание 6400 Series
Страница 2: ......
Страница 3: ...Maintenance Information Manual Cabinet and Pedestal Models 6400 Line Matrix Printers S246 0117 08...
Страница 12: ...Table of Contents...
Страница 28: ...28 Chapter 2 Installing And Configuring The IBM 6400 Printer...
Страница 34: ...34 Chapter 3 Cleaning The Printer...
Страница 184: ...184 Chapter 6 Ethernet Initialization...
Страница 199: ...Connector Stiffening Clips 199 Figure 31 Connector Stiffening Clips P107 P106 Stiffening Clip Connector Shell...
Страница 252: ...252 Chapter 7 Section II Illustrated Parts Lists Figure 41 Paper Stacker and Chains 6 5 7 1 8 3 2 4...
Страница 254: ...254 Chapter 7 Section II Illustrated Parts Lists Figure 42 Operator Panel and Cabinet Details 1 3 6 5 7 8 6 6 9 2...
Страница 258: ...258 Chapter 7 Section II Illustrated Parts Lists Figure 44 Inside Covers Cabinet Model 1 2 11 3 4 9 10 3 8 7 6 5...
Страница 267: ...Illustrations Of Printer Components 267 Illustrated parts lists continue on next page...
Страница 271: ...Illustrations Of Printer Components 271 Illustrated parts lists continue on next page...
Страница 282: ...282 Chapter 7 Section II Illustrated Parts Lists Figure 54 IBM Coax Twinax Expansion Board 1 2 3 4 5 6 8 7...
Страница 284: ...284 Chapter 7 Section II Illustrated Parts Lists Figure 55 Ethernet Interface Assemblies 1 2 3 4 5 6 7 9 10 8...
Страница 286: ...286 Chapter 7 Section II Illustrated Parts Lists...
Страница 299: ...299 Cable Routing Cabinet Model...
Страница 301: ...301 Cable Routing Pedestal Model...
Страница 304: ...304 Appendix A Circuit Board And Cable Pinouts Cable Assembly Centronics Dataproducts Adapter 14H5522...
Страница 305: ...305 Cable Assembly 5V Remote Power 14H5589...
Страница 307: ...307 Cable Assembly AC In Power Supply To Power Supply J1 To Circuit Breaker AC Kit 14H5289...
Страница 309: ...309 Cable Assembly Card Cage Fan PIN 1 PIN 1 14H5285...
Страница 311: ...311 Cable Assembly Exhaust Fan PIN 1 PIN 1 14H5286...
Страница 312: ...312 Appendix A Circuit Board And Cable Pinouts Cable Assembly Hammer Bank Logic 14H5279...
Страница 313: ...313 Cable Assembly Hammer Bank Power PIN 1 PIN 1 02N6214...
Страница 314: ...314 Appendix A Circuit Board And Cable Pinouts Cable Assembly MPU PIN 1 PIN 3 PIN 2 PIN 1 14H5329...
Страница 316: ...316 Appendix A Circuit Board And Cable Pinouts Cable Assembly Ribbon Motor Extension 63H7464...
Страница 317: ...317 Cable Assembly Shuttle Motor Drive 14H5330...
Страница 319: ...319 Logic Cable Power Stacker 24H8976...
Страница 320: ...320 Appendix A Circuit Board And Cable Pinouts Power Cable Power Stacker 24H8975...
Страница 321: ...321 Vertical Rail Cable Power Stacker Reference only not spared...
Страница 322: ...322 Appendix A Circuit Board And Cable Pinouts Fan Assembly Hammer Bank P107 HBF P107 HBF 14H5159...
Страница 323: ...323 Magnetic Pickup MPU Assembly 57G1476...
Страница 325: ...325 Switch Assembly Platen Interlock P107 PLO 14H5280...
Страница 326: ...326 Appendix A Circuit Board And Cable Pinouts Switch Assembly Cover Open 14H5282...
Страница 340: ...340 Appendix D...
Страница 354: ...354 Appendix F WR Write w With w o Without XMT Transmit...
Страница 387: ...387 22 Install the paper fence See Figure 77 Legend 1 Paper Fence 2 Stacker Base Figure 77 Paper Fence 1 2...
Страница 399: ...399 Figure 89 Stacker Assembly 14 30 35 10 12 20 9 37 12 5 8 8 13 15 25 7 11 20 9 12 10 6 7 38 38 38 See page 401 40...
Страница 403: ...403 Figure 91 Stacker Detail Rollers 75 80 85 90 85 80 From page 401...
Страница 405: ...405 Figure 92 Stacker Detail Motor Bracket 95 95 96 96 100 Connector Flat Side Flag Key From page 401...
Страница 407: ...407 Figure 93 Stacker Detail Elevator Bracket 95 97 Connector Flag Key 95 Nib 105 From page 401...
Страница 420: ...420...
Страница 421: ...Preliminary 1...
Страница 422: ...Copyright IBM Corp 1995 2000 S246 0117 08 164636 001B 07S246011708 01P4612 0401P4612...