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Output driver, Microprocessor, Power supply – Grass Valley 8901 User Manual

Page 28

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8901/8902/8906 Instruction Manual

Functional Description

Output Driver

The output driver is formed by a buffer after the equalization amplifier and
four video op-amps that drive eight 75 Ω loads, each amplifier driving two
loads.

Microprocessor

The microprocessor present on the 8906 module, monitors module health
and video presence and standard. This information is reported to the frame
via the Frame bus and can be accessed from the web GUI or a control panel
when an 8900NET module is installed in the 8900TFN-V frame.

Power Supply

The ± 5 volts needed by the module is generated from the ± 12 volt input.
Both inputs are fused and noise suppressed. Two linear regulators form the
± 5 volts.

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