Troubleshooting

Symptoms That Seemingly Appear to be Failures

Make the checks suggested below depending on the symptoms observed. If the symptoms remain uncorrected, contact your dealer.

WARNING

Customer servicing can be hazardous.

Symptom		Point to check	See page

• No picture with the power-indicating lamp		• Check the way the power cable is connected.	15
off.		• Press the power switch.	15
off.		• Press the power switch.
			16
			16

• The message “No Sync. Signal” or “Power		No sync signal is detected.	14
• The message “No Sync. Signal” or “Power		No sync signal is detected.
Save” is displayed.	! No Sync. Signal	• Check the way the signal cable is connected.
		• Make sure that the switch of the computer, imaging equipment ,
• No picture with the power indicating lamp		etc., is turned on.
• No picture with the power indicating lamp		etc., is turned on.
lights in orange.		• Make sure the computer is not in the power-save mode.
		• Check to see if the input selection matches the connection

		terminal.

• The message “Invalid Scan Freq.” is		An input signal is not received normally.	14
• The message “Invalid Scan Freq.” is		An input signal is not received normally.
displayed.	! Invalid Scan Freq.	• Check to see if the input signal matches the monitor
displayed.	! Invalid Scan Freq.	• Check to see if the input signal matches the monitor
		specifications.	31
		• Check the way the signal cable is connected.	31
		• Check the way the signal cable is connected.
			32

• The power indicating lamp is normally lit but		• Check the contrast and brightness settings (adjust them for higher	14
no picture .		contrast and brightness).	14
no picture .		contrast and brightness).
		• Check the way the signal cable is connected.	20

• The display image appears flowing		• Adjust the dot clock frequency and phase. (Adjust the dot clock
• The display image appears flowing
slantwise.		frequency first, the dot clock phase next.)	23
• Text displayed across the screen appears		(RGB input)
vertically streaked, with the characters in			29
vertically streaked, with the characters in			29
vertical columns blurred.


• Text displayed across the screen appears		• Adjust the dot clock phase for the clearest viewing.
blurred.		(RGB input)	23

•A fine pattern flickers when displayed on the

screen.		29

• The remote control does not work.	• Check to see if the batteries are loaded in the remote control in
	opposite direction.	12

•Check to see if the batteries in the remote control are OK.

ENGLISH

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.

Hitachi CMP4212, CMP4211 user manual Troubleshooting, Symptoms That Seemingly Appear to be Failures

Models: CMP4211 CMP4212