Brand: PHILIPS
Category: Electronics
Document Type: Spec Sheet
Language: EN
Spec Sheet for 25/28PT 4456
Uploaded: Nov. 21, 2025, 7:56 p.m.
- Picture Tube: Superflat Black Line FX with dark glass for better contrast and brighter, more natural colors.
- Contrast Plus: Enhances darker portions of the picture for added realism.
- Stereo Sound: Two-channel sound signal for different audio from left and right channels.
- RMS Sound Power: 10 W RMS (20 W Music Power), with Ultra Bass and 2 On Board Speakers.
- Ease of Use (Installation): Plug & Play with 100 preset channels, autostore, fine tuning, sorting, and Smart ATS and ACI.
- Ease of Use (Utilisation): Smart Picture Control (Soft, Natural, Rich, Personal), Smart Sound Control (Movie, Speech, Music, Personal), Listening (Delta Volume + AVL), Dual I-II, Smart Clock, Wake up Clock, Sleep Timer, 16:9 Compress, 4:3 Expand, Smart Lock (Child Lock + Parental Control).
- Connections: Side connections for CVBS Video in, Audio L/R (cinch/RCA) in, and Headphone Jack 3.5 mm out. Back connections include Euro A/V connectors (Ext1 and Ext2) for RGB, CVBS, and S-Video input/output.
- Information: 10 Page Smart Text with 4 Favourite Pages and Program Information Line.
- Reception: PLL digital tuning for VHF, UHF, S-Channel, Hyperband. 75 ohm Coaxial aerial input. Supports NTSC 4.43/3.58 video playback.
- Miscellaneous: Mains power options (AC 220-240V or AC 90-276V), Power Consumption (Normal Operation: tbc, Standby: < 3W). Available in Red Silver (10896) color.
Troubleshooting and error codes
| Problem | Possible Cause | Solution |
| No picture or sound | Set is switched off. | Switch the set on. |
| Aerial not connected or incorrectly connected. | Check aerial connection. | |
| Volume set to minimum. | Increase volume. | |
| Mute function is activated. | Deactivate Mute. | |
| No color | Color setting is set to minimum. | Increase color setting. |
| TV system is not set correctly. | Check TV system settings. | |
| Distorted sound | Volume too high. | Reduce volume. |
| Stereo setting is incorrect. | Check stereo system settings. | |
| Remote control not working | Batteries are exhausted. | Replace batteries. |
| Obstruction between remote and TV. | Remove obstruction. |