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-

 

 

 

 

• Check the way the power cable is connected.

6

 

 

 

 

indicating lamp off.

 

 

 

 

• Press the power switch.

7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• The message “POWER

 

 

 

 

 

 

No sync signal is detected.

6

 

 

 

 

 

 

SAVE” is displayed.

 

 

 

 

 

 

• Check the way the signal cable is connected.

 

 

 

 

 

 

 

 

 

 

POWER SAVE

• Make sure that the switch of the computer,

7

• No picture with the power

 

 

 

 

 

 

imaging equipment , etc., is turned on.

9

 

 

 

 

 

 

• Make sure the computer is not in the power-save

indicating lamp flickering in

 

 

 

 

 

 

 

 

 

 

 

 

 

mode.

21

green.

 

 

 

 

 

 

 

 

 

 

 

 

• Check to see if the input selection matches the

22

 

 

 

 

 

 

 

connection terminal.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

• The message “OUT OF

 

 

 

 

 

 

An input signal is not received normally.

6

 

 

 

 

 

 

FREQUENCY” is displayed.

 

 

 

 

 

 

• Check to see if the input signal matches the

7

 

 

 

OUT OF FRQUENCY

monitor specifications.

 

 

 

• Check the way the signal cable is connected.

21

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

27

 

 

 

 

 

 

 

 

29

 

 

 

 

 

 

 

 

 

• The power indicating lamp is

 

 

 

 

 

 

• Check the contrast and brightness settings

6

normally lit but no picture .

 

 

 

 

 

 

(adjust them for higher contrast and brightness).

7

 

 

 

 

 

 

 

• Check the way the signal cable is connected.

 

 

 

 

 

 

 

 

11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13

 

 

 

 

 

 

 

 

 

• The display image appears

 

 

 

 

 

 

• Adjust the dot clock frequency and phase.

16

 

 

 

 

 

 

flowing slantwise.

 

 

 

 

 

 

(Adjust the dot clock frequency first, the dot clock

 

 

 

 

 

 

25

• Text displayed across the

 

 

 

 

 

 

phase next.)

screen appears vertically

 

 

 

 

 

 

(RGB input)

 

 

 

 

 

 

 

 

streaked, with the characters

 

 

 

 

 

 

 

in vertical columns blurred.

 

 

 

 

 

 

 

 

 

 

• Text displayed across the

• Adjust the dot clock phase for the clearest

16

screen appears blurred.

viewing.

26

• A fine pattern flickers when

(RGB input)

 

 

displayed on the screen.

 

 

 

 

 

• The remote controller does not work.

• Check to see if the batteries are loaded in the

8

 

 

 

 

 

 

 

remote controller in opposite direction.

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

ENGLISH

23

Page 31 Page 33
Page 32
Image 32
Hitachi Koki USA CMP4120HDUS user manual Troubleshooting, Symptoms That Seemingly Appear to be Failures
Page 31 Page 33

CMP4120HDUS specifications

The Hitachi Koki USA CMP4120HDUS is an advanced power tool designed to meet the needs of professionals and DIY enthusiasts alike. Focusing on durability, performance, and ease of use, this model packs a range of features that enhances its functionality across various applications.

At the heart of the CMP4120HDUS is a robust 4.0 Amp motor, delivering impressive power and torque to tackle tough tasks. Whether drilling through wood, metal, or masonry, the motor ensures consistent performance, making it a reliable choice for any job site. Additionally, the variable speed control allows users to adjust the RPM to match the specific requirements of the task, providing versatility and precision.

One of the standout features of the CMP4120HDUS is its lightweight design, which significantly reduces user fatigue during prolonged use. Weighing in at just a fraction of heavy-duty counterparts, it allows for easy maneuverability, making it an excellent choice for overhead and extended work applications. Ergonomically designed handles with rubber grips further enhance comfort, improving control and reducing the likelihood of slippage.

The tool is engineered with an adjustable speed switch, allowing for speeds between 0 to 3,000 RPM, ensuring optimum performance for different materials. Coupled with its reversible function, users can easily switch between drilling and driving purposes, adding to its versatility in various tasks.

Another notable characteristic of the CMP4120HDUS is its durable construction. Built with high-quality materials, it is designed to withstand the rigors of regular use, ensuring longevity and reliability. The tool also features an integrated LED light, illuminating the workspace for improved visibility in dimly lit conditions, enhancing user safety and accuracy.

In terms of technology, the CMP4120HDUS incorporates advanced thermal protection, preventing overheating during extended use. This feature ensures that the tool maintains its performance without compromising safety. Furthermore, it comes with a quick-release chuck for effortless bit changes, enhancing efficiency and saving valuable time on the job.

Overall, the Hitachi Koki USA CMP4120HDUS is a versatile, reliable, and user-friendly power tool. With its powerful motor, adjustable speed settings, lightweight design, and robust construction, it stands out as an essential addition to any toolbox, delivering exceptional performance for a wide range of drilling and driving applications.
Top Page Image Contents