1. What are the user's basic technical expectations for the use of equipment?

Long-term work is stable and reliable, no faults occur;

Interchangeability of media (such as tape) is maintained well.

2. What law does the equipment operating state follow?

"Bathtub" status curve: After the equipment is used in the initial run-in period, it enters the stable period of use. After a period of time, due to the aging, wear, parameter deviation of the circuit and mechanical components, as well as dust, floating pollutants, temperature and humidity, etc. Entering a period of high incidence of failures.

3. What are the main non-human factors causing the failure?

Electrical components are aging due to time and use environment, causing the electrical parameters of the factory to drift;

Due to the time and use environment, the mechanical parts are worn, aging, and parameter deviations, which change the tape running path;

The recording and reading signals deviate from the standard due to the abrasion of the magnetic drum;

Due to dust and humidity, the machine index shifts and the stability decreases.

4. What are the ways to meet the technical expectations of user equipment?

According to the use time of equipment and environmental conditions, regular maintenance is implemented to continuously extend the stable period of equipment use and postpone the period of high failures, so as to ensure the reliability and quality of program production and broadcast.

5. What problems are prone to occur if maintenance is not carried out on schedule?

The quality of the playback image is reduced, and some parts of the screen sometimes appear mosaic;

Audio intermittent phenomenon during playback;

Head clogging often occurs;

The tape after being used by a certain machine will be scratched or crushed;

A tape that is replayed normally on another machine is not replayed normally on a certain one;

The program recorded on one machine cannot be played back normally on other machines.

6. Why does the camera system need to be adjusted regularly?

Because the camera system equipment is composed of millions of electronic components, as time and environmental conditions change, the parameters of these components (including CCD) will change to a certain extent, which will affect the electrical performance of the entire system. , Seriously, it will degrade the image and affect the shooting effect.

7. What is the work process of regular maintenance?

8. Does the adjustment of the camera system require professional and technical personnel?

Yes

The requirements for camera system adjustment indicators are very strict, and the correlation between multiple devices is very strong. Therefore, adjusting the camera system requires senior engineers with many years of relevant work experience to complete

9. Does the maintenance of stand-alone equipment require professional and technical personnel?

Yes

Single-unit equipment such as broadcast-grade camcorders and video recorders are very complex and precise electrical equipment, and many mechanical and electrical parameters must be adjusted during regular maintenance. Non-professionals cannot perform correct maintenance work.

The engineers of Sony's professional repair station are qualified technicians who have been specially trained and obtained the corresponding model maintenance certificate.

10. Does regular maintenance require special tools?

Yes. Maintenance work cannot be completed correctly without relevant professional tools.

11. What problems should be paid attention to after regular maintenance?

After adjusting the camera system, pay attention to the changes in the use environment (temperature, humidity, dust) and properly control them. Pay attention to the control of equipment preservation environment

Dust-proof and moisture-proof for the use environment of stand-alone equipment.

Stand-alone equipment should be sealed and stored in a moisture-proof box with desiccant when not in use.

Replace tapes regularly, and do not use shoddy or damaged tapes.

Use the cleaning tape correctly.

12. What problems should be paid attention to when using the cleaning tape?

Only use Sony's dedicated BCT-HD12CL cleaning tape to clean the video and audio heads.

BCT-5CLN cleaning tape cannot be used.

After inserting the cleaning tape, the cleaning tape will automatically exit after cleaning the head for 5 seconds.

If the cleaning tape fails to be automatically ejected after 5 seconds, please unwind the tape manually immediately.

It is recommended to use the cleaning tape every 50 hours of use for the VCR drum.

The cleaning tape cannot be used repeatedly.

Do not leave the cleaning tape inside the machine in the standby state.

When the number of consecutive use of the cleaning tape reaches five times and the head clogging is still not resolved, please stop using the cleaning tape and send the machine to the repair station for inspection.