Brand: HITACHI
Category: TV
Document Type: Manual
Language: EN
Available Languages: EN , ES
Manual for QR58553
Uploaded: Nov. 21, 2025, 9:08 p.m.
Warranty Information
Refer to your dealer for details regarding warranty information.
Turning Power On and Off: Press the main power switch to ON, then press the SUB POWER button or the ON/OFF button on the remote control. To turn OFF, press the SUB POWER or ON/OFF button, then turn the main power switch OFF.
Volume Adjustment: Use the VOL+/- buttons on the remote or the ▲/▼ buttons on the monitor.
Audio Mute: Press the MUTE button on the remote control.
Input Switching: Press the RGB1, RGB2 buttons or use the INPUT SELECT button on the monitor.
Size Switching: Press the SIZE button on the remote or monitor to cycle through Normal, Full, Zoom1, Zoom2, Zoom3, and Real modes.
Using the Menu Screen: Press the MENU button to access adjustment menus (Picture, Audio, Timer, Function, Setup, Language) using the SELECT and OK buttons.
Troubleshooting and error codes
| Status | Display | Action |
|---|---|---|
| When Mode Display is set to ON, the input signal is switched or when the RECALL button is pressed. | A guide is displayed for the input terminal and the horizontal and vertical sync frequency. | |
| When the sync signal is no longer detected. | • A guide displays No Sync. Signal, and Power Save (for approx. 5 sec.) • When the condition continues where the sync signal cannot be detected, indicator lamp of power source changes in orange and the mode switches to power save mode. |
Recheck the personal computer power switch status and the connection status. |
| When the input signal does not match the monitor specifications or is in an unstable status. | A guide displays Invalid Scan Freq. | Recheck the input signal specifications. |