Service manual

Section I: Imagesetter

Functional Analysis 2-5

2.3.2.1 DIAG Micro-controller

• System initialization at reset

• Power-up tests

• System diagnostics

• Handling SPI communication primitives

• Loading correction tables

• Debugging monitor mode

• Monitoring SPI communications

2.3.2.2 DEC K-1 Micro-controller

• Diagnostic tests

• Handling SPI communication primitives

• Deriving carriage position information

• Driving media transport motors

• Monitoring sensor arrays

• Video modulation

• Spot/Polarizer and focus motors

• Saving/restoring EEPROM parameters

• Setting up/initializing imaging functions, including stop/start

• Motor/bridge support

2.3.2.3 DSP Micro-controller

• Diagnostic tests

• Handling SPI communication primitives

• Providing low pass ﬁlters

• Carriage servo velocity information

• Spinner servo loop

• Supplying servo loop

2.3.2.4 OCP Micro-controller

• Diagnostic tests

• Handling SPI communication primitives

• Providing APIS interface (i.e. start take, end take, status)

• Graphical user interface (setting customer parameters)

• On-line processor communication support

• System controller