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Section 3 — Functional Description
Main Panel CPU Module (066262)
The Main Panel CPU Module has two processors that:
■ Handle communication with the switcher RAM
■ Control Electro-Luminescent display
■ Control lamp, button and knob data
■ Control Disk Drive
Upper Panel Microprocessor (PUP) Module (066271)
The Upper PUP Module has one microprocessor that:
■ Controls lamps and LEDs on upper portion of control panel
■ Reads buttons and knobs on upper portion of control panel
Lower Panel Microprocessor (PUP) Module (066267)
The Lower PUP has one microprocessor which:
■ Controls lamps and LEDs on lower portion of control panel
■ Reads buttons and knobs on lower portion of control panel
Display Module (066262)
Holds the display LEDs for which are located between the M/E1 1 and M/
E 2 input bus selector switches.
Lower Left Switch Module (066263)
Has all of the input select buttons