Why don't the buttons on my Sony Trinitron GDM-F420 Monitor work?
- AAlison HinesSep 12, 2025
If the buttons on your Sony Monitor do not operate, the control lock may be set to ON. Set it to OFF.
Why don't the buttons on my Sony Trinitron GDM-F420 Monitor work?
If the buttons on your Sony Monitor do not operate, the control lock may be set to ON. Set it to OFF.
Display Type | CRT |
---|---|
Screen Size | 19 inches |
Refresh Rate | 85 Hz at 1600 x 1200 |
Horizontal Refresh Rate | 30-96 kHz |
Vertical Refresh Rate | 50-160 Hz |
Input Connectors | VGA |
Record model and serial numbers for dealer reference.
Warnings to prevent fire, shock hazard, and to refer servicing to qualified personnel.
Includes FCC, EN 55022, MPR II, and USA/Canada power cord notices.
Instructions for connecting to HD15 and 5 BNC connectors.
Steps for powering on, Plug & Play, and switching input signals.
Guide to connecting USB devices using the monitor as a hub.
Steps to navigate and use the on-screen menu for adjustments.
Explanation of PICTURE EFFECT modes (PROFESSIONAL, STANDARD, DYNAMIC).
Details on adjusting color temperature using various modes.
Covers protecting data, language selection, and resetting adjustments.
Solutions for common display issues like no picture, flickering, and fuzziness.
Interpretations and solutions for 'NO SIGNAL' and 'OUT OF SCAN RANGE' messages.
Details on CRT, viewable size, resolution, and input signal levels.
Covers dimensions, mass, power consumption, and operating temperature.
Explanation of how the monitor matches input signals to preset modes.
Details on power consumption in different modes and compliance.
Guidelines for power cords, installation locations, and ventilation.
Instructions for cleaning, transportation, and tilt-swivel adjustment.
Table listing resolutions, frequencies, and graphics modes supported.
Details on flame retardants, Cadmium, Mercury, CFCs, and Lead in electronics.