Grass Valley 1200 Installation - Manual (Page 78)

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Section 3 Ñ Functional Description
Service Philosophy
Because of the surface mount parts, specialized PALS, and multipurpose
parts used in the Model 1200, troubleshooting and field repair of the
individual printed circuit modules is not practical. This section is designed
to help you determine which module in the Model 1200 may be at fault in
the event of a problem. You should then contact your equipment supplier
or Grass Valley Products Customer Support for module replacement or
repair.
Power Distribution
The Model 1200 Signal Processor Frame contains an enclosed power
supply which provides all power for the frame. The power supply has been
designed for easy removal and replacement in case of a problem. A second
power supply in the control panel supplies panel power. Power supply
characteristics are as follows:
Frame Input Voltage
■ 100 to 240 volts, 50 to 60 Hz. Autoranging and power factor corrected
Output Voltages
■ To Signal Processor Frame: +5.0 Volts, -5.2 Volts
■
To Fan: +12 Volts
Control Panel Input Voltage: 90 to 135 volts or 180 to 265 volts, 50 to 60 Hz.
Manual setting of voltage range.
Output Voltages
■ To Control Panel: -12.0 Volts, -5.0 Volts, +5.0 Volts, +12.0 Volts