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LC1200R User’s Guide
021-0183-00 Rev A 8 of 29
2.7 Power Supply
The LC1200R does not ship with a power supply. It is recommended that the Planar Systems, Inc.
power adapter, part number 997-3066-00 (US) or 997-3067-00 (EU) be purchased with each unit.
Refer to Section 5 for power requirements.
2.8 LCD Controller Board
The LCD controller board incorporates components necessary to drive the LCD panel. Accepting VGA
and VESA video standards (Section 1.2), these video signals are digitized and processed for the LCD
panel. Due to the LCD panel’s fixed video resolution (800 x 600), the LCD controller board will
perform independent horizontal and vertical zoom and shrink scaling of specified video resolutions
less than or greater than the LCD panel’s video resolution to fully accommodate the LCD panel’s
capability.
Magnification or reduction of specified video resolutions to match the native LCD panel’s resolution
incorporates scaling algorithms minimizing aliasing and image distortion. The LCD controller board
includes the following characteristics:
• Per pixel scaleable filters providing text sharpening and graphics smoothing for improved
image quality.
• Color depth enhancement by performing spatial-temporal dithering reducing visual artifacts.
• External controls. See User Controls (Page 18) for more information.
There are 5 connectors for 12 V fans located on the controller board. They are attached to a 30º C
thermostat.
2.9 Inverter Board
The inverter PCB drives the LC1200R’s 6 cold cathode fluorescent lamps (CCFL). It is capable of
automatic brightness control of the backlight. See User Controls (Page 17) for more information on
the dimming functions.
There are 4 connectors to power 12 V fans on the inverter PCB. They are on constantly.
2.10 Photodiode Board
A photodiode (Siemens BPW21) mounted on a separate circuit board is provided for sensing the
ambient light conditions. A cable (40 cm in length) is connected from the photodiode board to the
inverter board on the LC1200R.
Size: approximately 1 x 3 cm with two 3mm diameter mounting holes. Refer to mechanical outline
drawing for details