Chapter 6 Maintenance and inspections

6-1-3 Inspecting the VTR unit

Perform all the steps outlined in section “1. Tape travel inspection” through section “4. Earphone and speaker inspection” one after the other.

1.Tape travel inspection

1Set the VTR SAVE/STBY switch to SAVE, and check that the VTR SAVE lamp inside the viewfinder lights.

2Set the VTR SAVE/STBY switch to STBY, and check that the VTR SAVE lamp goes off.

3Set the TCG switch to R-RUN.

4Set the DISPLAY switch to CTL.

5Press the unit’s VTR START button, and check that:

≥The tape reels rotate.

≥The figure shown on the counter display changes.

≥The REC lamp inside the viewfinder lights.

≥The RF and SERVO displays do not appear in the display window.

2.Automatic audio level adjustment function inspection

1 Set the AUDIO SELECT CH1 and CH2 switch to AUTO.

2

Set the AUDIO IN CH1 and CH2 switches to FRONT.

 

3

Point the microphone connected to the MIC IN jack at a

 

 

suitable sound source, and check that the changes in the

 

 

level displays for both CH1 and CH2 reflect the changes

 

 

in the strength of the sound.

 

3. Manual audio level adjustment function

 

 

inspection

 

1

6

Set the AUDIO IN CH1 and CH2 switches to FRONT.

 

2

Set the AUDIO SELECT CH1 and CH2 switch to MAN.

 

3

Turn the AUDIO LEVEL CH1 and CH2 controls.

 

 

Check that when they are turned clockwise, the level

 

displays increase.

6 Press the unit’s VTR START button again. Check that the tape stops and the REC lamp inside the viewfinder goes off.

7 Use the lens VTR button to check the same operations as in steps 5 and 6.

8 Press the RESET button, and check that “00:00:00:00” appears on the counter display.

9 Set the LIGHT switch to ON, and check that the display window illuminates.

10 Press the REW button, and after the tape has been rewound for a few seconds, press the PLAY/PAUSE button.

Check that the tape is recorded, played back and rewound properly.

11 Press the FF button, and check that the tape is fast forwarded properly.

4. Earphone and speaker inspection

1 Set the VTR SAVE/STBY switch to STBY.

2 Turn the MONITOR control, and check that the speaker volume changes.

3 Connect the earphones to the PHONES jack.

Check that the sound from the speaker is muted, and that the microphone’s sound is heard in the earphones.

4 Turn the MONITOR control, and check that the earphone volume changes.

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Panasonic AJ-HDX400P Inspecting the VTR unit, Tape travel inspection, Automatic audio level adjustment function inspection
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AJ-HDX400P specifications

The Panasonic AJ-HDX400P is a versatile HD camcorder renowned for its exceptional image quality and professional-grade features. This camera is optimized for broadcast and production environments, delivering exceptional performance in a compact design.

One of the standout features of the AJ-HDX400P is its ability to record in multiple formats, including DVCPro HD, DVCPRO50, and DVCPRO. This flexibility allows users to choose the best format for their specific needs, making it suitable for various applications, from documentaries to commercial productions. The camcorder supports high-definition resolutions of up to 1080i, ensuring that the final output meets industry standards.

The camera is equipped with a three-CCD sensor system, which provides outstanding color reproduction and detail. Each CCD chip specializes in capturing specific color information, resulting in rich, vibrant images free from color artifacts. With a resolution of 1280 x 720p and the ability to capture 720p and 1080i formats, the AJ-HDX400P excels in delivering superior image clarity and fluid motion.

In addition to its recording capabilities, the AJ-HDX400P features advanced image processing capabilities. The camera utilizes a high-quality digital signal processor, which ensures that noise reduction is effectively handled, particularly in low-light conditions. This feature is crucial for producing clean and polished footage without compromising quality.

The Panasonic camcorder also boasts an extensive range of connectivity options. Users can benefit from HD-SDI and analog outputs, allowing for versatile connections to monitors and other recording devices. The presence of IEEE 1394 for digital output further enhances its compatibility with various editing systems, streamlining the post-production workflow.

Another notable characteristic of the AJ-HDX400P is its ergonomic design. It is built for extensive usage, featuring a lightweight yet durable chassis. The camcorder has an adjustable viewfinder and an intuitive user interface that make it easy to operate, even in high-pressure shooting environments.

Furthermore, the AJ-HDX400P supports a range of professional accessories, including lenses, microphones, and battery packs, enhancing its functionality for different shooting conditions. This adaptability makes it a reliable choice for videographers and production houses looking for a high-quality recording solution.

In summary, the Panasonic AJ-HDX400P stands out as a feature-rich, professional HD camcorder that combines advanced imaging technology, versatile recording formats, and user-friendly design, making it ideal for a wide array of filming scenarios. Its robustness and exceptional performance solidify its position as a reliable tool in the hands of creative professionals.
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