Do you have a question about the Philips 21PT4457 and is the answer not in the manual?
Details on screen size, tube type, sharpness, noise reduction, and colour temperature.
Information on sound power, bass, and onboard speakers.
Covers installation features like Plug & Play and utilization features like smart controls and lock functions.
Details on side/back connections, tuner systems, aerial input, and video playback standards.
Includes power, consumption, physical dimensions, weight, and colour details.
TV tube technology using darker glass for better contrast and a narrow neck for improved brightness.
Electronic circuit to enhance darker picture portions for realism and improved quality.
Delivers two-channel sound signals with distinct left and right audio channels.
Built-in radio capable of stereo sound and storing up to 40 FM stations.
Automatically searches for and installs all channels upon connection.
Automatically updates the internal clock for easier wake-up clock programming.
Details on screen size, tube type, sharpness, noise reduction, and colour temperature.
Information on sound power, bass, and onboard speakers.
Covers installation features like Plug & Play and utilization features like smart controls and lock functions.
Details on side/back connections, tuner systems, aerial input, and video playback standards.
Includes power, consumption, physical dimensions, weight, and colour details.
TV tube technology using darker glass for better contrast and a narrow neck for improved brightness.
Electronic circuit to enhance darker picture portions for realism and improved quality.
Delivers two-channel sound signals with distinct left and right audio channels.
Built-in radio capable of stereo sound and storing up to 40 FM stations.
Automatically searches for and installs all channels upon connection.
Automatically updates the internal clock for easier wake-up clock programming.
| Product color | Silver |
|---|---|
| Aspect ratio | 4:3 |
| Display diagonal | 21 \ |
| Viewable size diagonal | 500 mm |
| Analog signal format system | NTSC |
| Sleep timer | Yes |
| Frequency range | 50 Hz |
| I/O ports | Aerial input Scart1: CVBS in/out, RGB Scart2: CVBS in/out Audio L/R in CVBS in Headphone out |
| Speakers | 2 |
| Audio system | Nicam stereo |
| Package weight | 24000 g |
| Power consumption (standby) | 3 W |
| Power consumption (typical) | 50 W |
| Weight | 21000 g |
|---|---|
| Dimensions (WxDxH) | 596 x 482 x 483 mm |











