TROUBLESHOOTING (continued)

Symptoms That Seemingly Appear to be Failures (continued)

Symptom

Point to check

See page

 

 

 

• The temperature of the display panel surface is high.

• The plasma display panel is lighting the phosphors by the

 

 

discharge of internal radiation. In some cases, this may cause the

-

 

temperature of the panel surface to increase. Please note that this

 

 

 

is not a malfunction.

 

•There are locations on the screen that are different from the • High-precision technology is used to manufacture the plasma

periphery (*).

display panel, However in some cases, there are minor defects in

 

*Points that do not light, points with brightness different

some parts of the screen. Please note that this is not a

-

from that of the periphery, points with color different from

malfunction.

 

that of the periphery, etc.

 

 

•Vertical stripes appear, depending on the screen contents. • The plasma display panel is lighting the phosphors by the discharge of internal radiation. Depending on the screen

 

contents, in rare cases this may cause vertical stripes to appear

-

 

because of failure to light. Please note that this is not a

 

 

malfunction.

 

 

 

 

• Coarse horizontal stripes appear in FULL display.

• Adjusting the Clock Phase will reduce the horizontal stripes.

23

 

(RGB input)

•Flickering in the form of horizontal lines oscillating up and • If the direct frequency from the computer is below 85Hz, try a

down.

higher frequency (upper limit 85Hz). There may be a slight

23

(PC INPUT MODE only)

attenuation of the current image.

•Try turning the Vertical Filter On. For this case however, the vertical resolution will drop.

• The fan motor is noisy. (Fan application model only)

• Use the fan that controls the temperature in the main body to

 

 

lower the temperature of this unit. If the ambient air temperature

-

 

increases, the fan will start, the RPMs will increase and motor

 

 

 

noise will grow louder. This is not a malfunction though.

 

 

 

 

• The top of the monitor heats up.

• When used for long periods of time, the top of the monitor may

-

 

heat up. This is not a malfunction.

•Text characters are displayed with varying thicknesses. • The thicknesses of characters and lines may vary if images with a

vertical resolution greater than 512 lines are displayed; however,

-

this is not a malfunction.

 

28

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Image 28
Hitachi CMP4211, CMP4212 user manual Symptom Point to check
Page 27 Page 29

CMP4211, CMP4212 specifications

Hitachi CMP4212 and CMP4211 are renowned models within the realm of industrial-grade flat panel displays, known for their advanced technologies and features suited for various applications, including professional broadcasting, healthcare, engineering, and digital signage. These models showcase Hitachi's commitment to providing high-quality visual solutions while integrating innovative technologies designed to enhance user experience and reliability.

One of the defining characteristics of the CMP4212 and CMP4211 is their impressive display performance. Both models feature a 42-inch diagonal screen, delivering vibrant colors and incredible image clarity. Equipped with high-resolution capabilities, the displays provide sharp and detailed visuals, making them ideal for environments where precision and clarity are paramount. With a contrast ratio that ensures deep blacks and bright whites, users can expect enhanced visibility in various lighting conditions.

These models utilize advanced LCD technology, ensuring a wide viewing angle. This is particularly beneficial in settings where multiple viewers are positioned at different angles, allowing for consistent image quality across the viewing plane. Additionally, the displays incorporate Hitachi's proprietary image enhancement technologies, which further improve picture quality and reduce visual artifacts, ensuring that the images presented are both accurate and appealing.

Durability is another hallmark of the CMP4212 and CMP4211. Designed for heavy-duty usage, these displays are built to withstand the rigors of demanding environments. Their rugged construction, along with protective glass overlay, ensures that the screens are resilient against scratches and impacts. This makes them an excellent choice for hospitals, control rooms, and other locations where longevity is crucial.

In terms of connectivity, both models offer a variety of input options, including HDMI, VGA, and component video, enabling compatibility with a wide range of devices. This versatility simplifies integration into existing systems, allowing for seamless operation whether used for presentations, video playback, or complex data displays.

Energy efficiency is another noteworthy aspect of the CMP4212 and CMP4211. With advancements in power management, the displays consume significantly less energy compared to traditional models. This not only reduces operational costs but also supports environmentally friendly practices.

In summary, Hitachi CMP4212 and CMP4211 stand out due to their remarkable display performance, durability, versatile connectivity, and energy efficiency. These features make them ideal candidates for any professional environment where high-quality visual presentation is crucial, ensuring that they continue to meet the demands of users across various industries.
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