Brand: HITACHI
Category: Other
Document Type: Manual
Language: EN
Manual for CP-X201/CP-X301/CP-X401/CP-X450
Uploaded: Nov. 21, 2025, 8:38 p.m.
Warranty Information
Please contact your dealer or service company for warranty information.
Turning on the power
- Connect the power cord securely to the projector and the outlet.
- Remove the lens cover and switch the power to ON. The POWER indicator will light up orange. Wait a few seconds for buttons to function.
- Press the STANDBY/ON button on the projector or remote. The projection lamp will light up, and the POWER indicator will blink green, then turn steady green when power is fully on.
- Select an input signal to display the picture.
Turning off the power
- Press the STANDBY/ON button. "Power off?" will appear.
- Press STANDBY/ON again to confirm. The lamp will go off, and the POWER indicator will blink orange.
- Once the POWER indicator is steady orange, switch the power to OFF. Attach the lens cover.
- Wait at least 10 minutes before turning the projector on again to prolong the life of consumable parts.
Troubleshooting and error codes
| Phenomenon | Cases not involving a machine defect | Reference page |
|---|---|---|
| Power does not come on. | The electrical power cord is not plugged in. Correctly connect the power cord. | 11 |
| The main power source has been interrupted during operation such as by a power outage (blackout), etc. Please disconnect the power plug from the power outlet, and allow the projector to cool down at least 10 minutes, then turn the power on again. | 11, 14 | |
| Either there is no lamp and/or lamp cover, or either of these has not been properly fixed. Please turn the power off and disconnect the power plug from the power outlet, and allow the projector to cool down at least 45 minutes. After the projector has sufficiently cooled down, please make confirmation of the attachment state of the lamp and lamp cover, and then turn the power on again. | 54, 55 | |
| Neither sounds nor pictures are outputted. | The signal cables are not correctly connected. Correctly connect the connection cables. | 9 |
| Signal source does not correctly work. Correctly set up the signal source device by referring to the manual of the source device. | – | |
| The input changeover settings are mismatched. Select the input signal, and correct the settings. | 15, 16 | |
| The BLANK function for pictures and the MUTE function for sounds are working. AV Mute may be active. Refer to the item “Sound does not come out” and “No pictures are displayed” on the next page to turn off the MUTE and BLANK functions. | 15, 20 | |
| Sound does not come out. | The signal cables are not correctly connected. Correctly connect the audio cables. | 9 |
| The MUTE function is working. Restore the sound pressing MUTE or VOLUME button on the remote control. | 15 | |
| The volume is adjusted to an extremely low level. Adjust the volume to a higher level using the menu function or the remote control. | 15 | |
| The AUDIO/SPEAKER setting is not correct. Correctly set the AUDIO/SPEAKER in AUDIO menu. | 35 | |
| No pictures are displayed. | The lens cover is attached. Remove the lens cover. | 4, 14 |
| The signal cables are not correctly connected. Correctly connect the connection cables. | 9 | |
| The brightness is adjusted to an extremely low level. Adjust BRIGHTNESS to a higher level using the menu function. | 24, 25 | |
| The computer cannot detect the projector as a plug and play monitor. Make sure that the computer can detect a plug and play monitor using another plug and play monitor. | 10 | |
| Video screen display freezes. | The FREEZE function is working. Press FREEZE button to restore the screen to normal. | 20 |
| Colors have a faded-out appearance, or Color tone is poor. | Color settings are not correctly adjusted. Perform picture adjustments by changing the COLOR TEMP, COLOR, TINT and/or COLOR SPACE settings, using the menu functions. | 24, 26, 30 |
| COLOR SPACE setting is not suitable. Change the COLOR SPACE setting to AUTO, RGB, SMPTE240, REC709 or REC601. | 30 | |
| The brightness and/or contrast are adjusted to an extremely low level. Adjust BRIGHTNESS and/or CONTRAST settings to a higher level using the menu function. | 24, 25 | |
| Pictures appear dark. | The WHISPER function is working. Select NORMAL for WHISPER item in the SETUP menu. | 24, 34 |
| The lamp is approaching the end of its product lifetime. Replace the lamp. | 54, 55 | |
| Pictures appear blurry. | Either the focus and/or horizontal phase settings are not properly adjusted. Adjust the focus using the focus ring, and/or H PHASE using the menu function. | 17, 29 |
| The lens is dirty or misty. Clean the lens referring to the section “Caring for the lens”. | 58 | |
| RS-232C does not work. | The SAVING function is working. Select NORMAL for STANDBY MODE item in the SETUP menu. | 34 |