Q

The Remote Control PCB houses the:

 

CONTROL

DESCRIPTION

CIRCUIT

1.

H SIZE -----------

Horizontal raster size ---------

Diode modulator

2.

V SIZE -----------

Vertical raster size -------------

Vertical control

3.

V RAS. POS. ---

Vertical raster position -------

DC current to V. yoke

4.

H POS ------------

Horizontal picture position --

H. sync delay

5.

M GAIN ----------

Master gain ----------------------

Video interface

R

The Horizontal Size Control circuit has four inputs:

#

SIGNAL

FUNCTION

1.

Horizontal size ------------------------------

Horizontal size control

2.

Beam current --------------------------------

Blooming control

3.

Vertical linear ramp -----------------------

}(#4)-(#3)=Vertical parabolic

4.

Vertical parabolic + V. linear ramp ---

 

 

(Pincushion)

The horizontal size control circuit sums the four signals at one node plus the feedback from the diode modulator to drive a switching mode power driver. The output of the power driver is then connected to the diode modulator through an inductor to complete the control loop.

S

The Diode Modulator is a series element of the horizontal tuned circuit. It forms a node between GND and the normal yoke return circuit. If this node is shorted to GND, the result is maximum horizontal size. Forward current in the diode modulator, at the start of retrace, keeps the node voltage clamped to ground until enough current flows from the horizontal tuned circuit to exceed this forward current. The horizontal size, therefore, is controlled by controlling the current to this diode via the horizontal size control circuit.

T

A Voltage Doubler is used in the power supply for two reasons:

1.To improve the efficiency of the power supply.

2.To permit 120 volt and 230 volt operation. For the 230 volt operation the voltage doubler is replaced with a bridge rectifier.

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Genius 1493, ISO XFR-75W, 2093, 2793, 3693, 1793, 1993, ISO XFR-100W manual Control Description Circuit

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.