Panasonic PT-LMZ420 WUXGA Laser Projector with Low-Maintenance SOLID SHINE Technology for Conference and Training Rooms

Overview

The Panasonic PT-LMZ420 is a compact 3LCD laser projector with WUXGA resolution (1,920 x 1,200 pixels) and 4,200 ANSI lumens, designed for professional use in conference rooms, training rooms and classrooms. The SOLID SHINE laser source reaches up to 24,000 operating hours in ECO mode, making regular light source replacements unnecessary. Weighing just 4.2 kg with compact dimensions of 34.9 x 10.5 x 30.9 cm (W x H x D), the projector is suitable both for permanent installation and for mobile use between meeting rooms.

Benefits and special features

• SOLID SHINE laser source with a life of up to 24,000 hours in ECO mode – no lamp replacement required
• 4,200 ANSI lumens and Daylight View function for easily readable projection even in bright rooms
• Dynamic contrast of 3,000,000:1 through automatic adjustment of laser output and signal compensation
• Automatic vertical keystone correction ±25° plus manual horizontal correction ±35°
• 6-point correction, corner correction and curved correction for flexible adaptation to different projection surfaces
• Memory Viewer for direct USB projection of images (JPEG, BMP, PNG, GIF, TIFF) without a PC
• DICOM SIM. picture mode for medical training and presentations with greyscale optimisation
• Network control via PJLink Class 2, Crestron Connected and AMX Device Discovery

Picture and sound quality

The PT-LMZ420 uses 3LCD technology with three 0.64-inch LCD panels. The light output of 4,200 ANSI lumens is achieved by the SOLID SHINE laser source. The dynamic contrast of 3,000,000:1 comes from the Dynamic Contrast function, which adjusts laser output and image signal to the scene in real time – setting [1] with moderate adjustment, setting [2] with extended control including optional light source shut-off in very dark scenes. The Daylight View function additionally optimises image reproduction for bright environments with incoming external light.

The integrated 10 W mono speaker is suitable for smaller meeting rooms. An audio output (3.5 mm stereo jack) is available for connecting external speaker systems.

Connectivity includes two HDMI inputs (HDCP 1.4, Deep Color, 4K/30p signal input), two VGA inputs (15-pin D-Sub), two audio inputs (3.5 mm jack), an audio output, an RS-232C control port and an RJ-45 LAN port for network integration. The USB-A port serves as a Memory Viewer input, as a slot for the optional AJ-WM50 Wi-Fi module (IEEE 802.11 b/g/n) and as a power supply (DC 5 V, max. 2 A) for streaming sticks. The Memory Viewer function supports JPEG, BMP, PNG, GIF and TIFF on USB storage media with a FAT16 or FAT32 file system. Via Wi-Fi, wireless image transmission is possible with the Wireless Projector app (iOS/Android) and Presenter Light software (Windows).

The HDMI inputs support CEC for automatic linked power on/off between the projector and connected devices (HDMI Power On/Off). Via the LAN port, control is possible via PJLink Class 2, Crestron Connected and AMX Device Discovery – relevant for central management in AV installations with several projectors.

Mounting and installation

The PT-LMZ420 supports four setups: front table, rear table (rear projection), front ceiling mount and rear ceiling mount. Automatic real-time keystone correction (Realtime Keystone) detects the vertical tilt and automatically corrects image distortion up to ±25° when placed on a table. For manual fine adjustment, horizontal keystone correction (±35°), corner correction, curved correction and 6-point correction are also available. The Digital Zoom Extender expands the throw ratio range to 1.36–2.05:1, so you can project even from a greater distance than the optical zoom maximum.

In the box: wireless remote control (N2QAYA000237), 2x AAA batteries, power cable (2.0 m).

For adequate ventilation, the manufacturer recommends a distance of at least 100 cm between the exhaust vent and the wall and 50 cm on the intake side. The maximum operating altitude is 2,700 m above sea level – above 700 m, light output is automatically reduced at high temperatures to protect the unit. The operating temperature ranges from 0 °C to 45 °C (with optional Wi-Fi module: 0–40 °C).

Note for wall distance planning: add 30.9 cm for the housing depth plus approx. 7–12 cm for power and signal cables to the values in the table.

Running and follow-up costs

Power consumption of the PT-LMZ420 is 215 W in Normal mode, 165 W in ECO mode and 160 W in Quiet mode (each at 100–240 V). Maximum power consumption is 240 W. In standby, the unit consumes approx. 0.5 W in ECO mode.

The SOLID SHINE laser source reaches a life of 20,000 hours in Standard and Quiet mode, or 24,000 hours in ECO mode. No regular light source replacement required – low-maintenance in continuous operation. A light module replacement (workshop) is only necessary at the end of its service life.

The washable air filter (replacement filter: ET-RFL400) has an estimated maintenance interval of approx. 20,000 operating hours under standard conditions (0.08 mg/m³ dust) or 10,000 hours with higher dust levels (0.15 mg/m³). The filter can be washed and reused up to twice.

The PT-LMZ420 is classified as a Class 1 laser product (IEC/EN 60825-1:2014) and Risk Group 2 (IEC 62471-5:2015) – relevant for installation in schools and public buildings.

Conclusion

The Panasonic PT-LMZ420 combines 4,200 ANSI lumens of light output with low-maintenance SOLID SHINE laser technology and reaches up to 24,000 operating hours without light source replacement. Extensive geometry correction functions, including 6-point correction and automatic keystone correction, simplify installation in different room conditions. With network control via PJLink Class 2, Crestron and AMX, plus CEC linking, the projector is suitable for integration into professional AV infrastructures. Weighing 4.2 kg and with an operating noise of just 23 dB(A) in Quiet mode, it is both portable and quiet enough for changing use in training and conference rooms.

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