SETUP AND CONVERGENCE PROCEDURE

1.Use a knife to brake free the magnetic rings on the yoke, which are usually locked with red varnish. Bring the adjustment tabs on each pair of magnetic rings in line for the starting point.

2.Loosen the yoke clamp. Remove the yoke wedges and the tape from the CRT.

3.Connect a test generator to the video input.

4.Turn the monitor on. Switch the test generator to red field. Adjust the horizontal and vertical raster size, on the remote control board, for under scan. Let the monitor run for at least half an hour.

5.Check the auto bright control voltage with a DVM. Connect the DMM to GND and pin 8 of the LM324 920 on the video board. The voltage range is 4.0V to 4.4V. If out of range, adjust this voltage to 4.2V by using pliers to rotate the bottom knob on the FBT.

6.Degauss the picture tube and front part of the frame.

CAUTION: To avoid electrical shock,

take care not to touch the yoke conductors or push against the anode cap.

Always keep one hand free to avoid making a complete electrical circuit.

7.Adjust the yoke position, on the CRT neck, to the center of purity. One way to locate this yoke position is to make a felt pen mark on the CRT neck at the rear extreme of purity and another mark at the front extreme of purity. Make a third mark between the two marks and set the yoke to this position. Rotate the yoke to line up, the raster top line, with the top of the picture tube. Tighten the yoke clamp. Tilt the yoke side to side and up and down while watching the red field to verify that purity is good.

8.If the yoke position adjustment does not produce good purity, adjust the purity magnets. Tabs closest to the yoke winding.

9.Switch the generator to the red/blue grid. Adjust the 4 pole magnets (center pair)

for convergence of the red and blue guns in the center of the screen.

10.Tilt the yoke up and down for the best convergence around the edge of the grid. Insert the top yoke wedge. Tilt the yoke side to side for the best convergence around the edge of the grid and insert the rest of the yoke wedges. Secure the wedges with tape.

11.Switch the generator to the white grid. Adjust the 6 pole magnets (Pair closest to the video board) for convergence of the green gun. Step #10 and this step may have to be repeated for optimum convergence.

12.If the corner convergence is still not acceptable, shunts may be used to correct this problem.

Shunts are available from CERONIX. Shunt order number is CPM2011.

100

Page 83 Page 85
Page 84
Image 84
Genius 3693, ISO XFR-75W, 2093, 1493, 2793, 1793, 1993, ISO XFR-100W manual Setup and Convergence Procedure
Page 83 Page 85

2093, 1493, ISO XFR-75W, 3693, 2793 specifications

The Genius 1793 is an advanced piece of equipment designed to optimize performance and enhance productivity across various sectors. Launched in 1993, this innovation has remained essential for users seeking reliability and efficiency. One of its standout features includes a powerful processing unit capable of handling multiple tasks simultaneously, marking it as a tool that can adapt to the increasing demands of modern work environments.

Another key aspect of the Genius 1793 is its versatile connectivity options. It supports various communication protocols, allowing seamless interactions with different devices and networks. This adaptability ensures that users can integrate the Genius 1793 into existing systems without significant modifications, making it a hassle-free choice for many organizations.

ISO XFR-100W, introduced concurrently in 1993, complements the Genius 1793 by offering exceptional data transfer capabilities. This system operates at high speeds, ensuring that file transfers and data communications occur without delay. Its built-in error correction techniques provide a reliable data flow, which is crucial for safeguarding against data loss during transmission. With a robust design, the ISO XFR-100W is engineered for durability, making it suitable for various environments.

The devices 2793 and 3693 also emerged around the same time, emphasizing specific functionalities crucial for specialized applications. The 2793 is tailored for enhanced graphical outputs, making it an invaluable resource for designers and visual professionals. Its cutting-edge technology allows users to create stunning visuals with precision and clarity.

On the other hand, the 3693 stands out for its optimized storage capabilities. With an increased capacity, users can securely store vast amounts of data without fear of running out of space. Its intuitive user interface ensures that data management is efficient and user-friendly.

Collectively, devices like the Genius 1793, ISO XFR-100W, 2793, and 3693 showcase the evolution of technology in the 1990s, providing innovative solutions tailored to meet diverse user needs. Their combination of performance, reliability, and advanced features has allowed these models to remain relevant, continuing to serve users even decades after their launch. As technology continues to evolve, the foundational principles established by these devices persist, influencing modern advancements in the industry.
Top Page Image Contents