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UCW and Ultraview 1700 Monitors — Service Manual
3-2
The display is the most visible part of the system.
Inside its enclosure are the following assemblies:
• CRT display
• Touchscreen assembly
• CPU, I/O, and interconnect PCBAs
No internal adjustments should be performed on the monitor. Brightness, contrast, horizontal and
vertical size, and position of the display area are software-controlled through the touchscreen
interface.
Monitor Power Supply
The monitor chassis has an internal power supply that provides AC-to-DC conversion and DC
voltage for the CRT display, the touchscreen assembly, and the CPU PCBAs. The I/O and
Interconnect PCBAs do not require power.
CRT Display
The CRT display provides the visual interface to the system user.
CRT Specifications:
Touchscreen Assembly
The touchscreen consists of an array of infrared emitters and detectors that surround the CRT
screen and generate an array of horizontal and vertical infrared beams over the surface of the
screen. Whenever a beam is blocked by the presence of a finger or similar-sized object, the
touchscreen circuitry detects the interrupted beam and responds accordingly.
There are no external, manually operated controls associated with the touchscreen. The
touchscreen constantly calibrates itself.
CRT type: non-interlaced, color CRT with analog RGB and TTL sync outputs
Diagonal size: 15 inches (350.5 mm)
Dot pitch: 0.28 mm triangular dot trios
Light transmittance: semi-tint glass; 57.2% transmissivity
Anti-reflective treatment: anti-static non-glare coating
Light output: 60 foot-lamberts
Display resolution: 1024 × 768 dpi
Vertical refresh rate: 64 Hz
Horizontal refresh rate: 51.584 kHz
Video dot rate: 68.5 MHz
Horizontal screen dimension: 10.5 inches (267 mm)
Vertical screen dimension: 7.8 inches (198 mm)
!
• The monitor will still operate with an inoperable touchscreen. If the touchscreen is
significantly out of calibration and unusable, manual calibration must be
accomplished using a mouse or keyboard, or via the serial port (refer to Diagnostic
Menus on page 5-12).