Chapter 4—Setup Adjustments

NOTE: Threshold Offset can be viewed as the fine adjustment for

Black Level (G2).

3.Repeat the Sensitivity and Threshold Offset adjustments to obtain a Grey/Pluge pattern where the small, black and small, white square are just barely visible inside their larger squares.

Repeat the above Black Level, Sensitivity Offset and Threshold Offset adjustments for Green and Red.

4.8. Uniformity (Shading)

Uniformity adjustments correct inconsistencies and brightness differences in the CRT and ILA® assemblies.

4.8.1.Sensitivity Uniformity

Sensitivity sets the brightness at high (white) video levels. Performed one color at a time, this adjustment gets a flat, uniform brightness in the white areas.

To adjust the Sensitivity for Blue:

1.Darken the room as much as possible.

2.Use the RGB and HIDE KEYS to hide R and G. Verify that the

SHUTTERS ON HIDE box under the SYSTEMS-PREFERENCES MENU is

checked.

3.Toggle the RGB KEY to select B only.

4.Access VARIABLE FLAT from the TEST PATTERN MENU.

5.Use the arrow keys and select a Flat Field level of about 160.

6.Access the CONVERGENCE MENU and select SENSITIVITY. The

Sensitivity cursor and a window are displayed. The sensitivity level’s data value for the entire screen is displayed— this value is the reset value of 128 plus or minus the amount of offset from the previous adjustment.

7.Observe the center of the Flat Field screen. This is the brightest area of the screen— it is used as a reference to match the rest of the screen. Avoid overlapping this reference area with the cursor when adjusting or the reference brightness level could change.

8.Select a 12 X 12 cursor as shown in the cursor size window.

9.Toggle the MODE KEY to the MOVE CURSOR. Move the cursor to an area of the screen that is not as bright as the reference area observed in Step 7.

10.Press ENTER to display the ADJUSTMENT CURSOR.

11.Use the arrow keys to bring the darker areas of the screen up to match the reference area. Avoid making adjustments at the edges of the cursor. Move the center of the cursor over the area that needs to be adjusted.

12.Obtain the best possible uniformity over the entire screen, then repeat Steps 9 - 11 with an 8 X 8 cursor.

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JVC CB100 manual Uniformity Shading, Sensitivity Uniformity, To adjust the Sensitivity for Blue
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CB100 specifications

The JVC CB100 is a versatile and compact Bluetooth speaker designed to deliver rich sound quality and ease of portability for music enthusiasts on the go. One of its most notable features is its robust wireless connectivity, enabling users to easily pair their smartphones, tablets, or laptops via Bluetooth within a range of up to 33 feet (10 meters). This flexibility allows for seamless audio streaming without the hassle of cables, making it perfect for outdoor gatherings, parties, or simply relaxing at home.

The CB100 is engineered with high-performance audio drivers that provide a well-balanced sound profile. Its enhanced bass response ensures that low frequencies are reproduced with clarity and depth, while midrange frequencies maintain a crisp and clear audio experience, ideal for all genres of music. The speaker also supports advanced audio technologies such as DSP (Digital Signal Processing) to optimize sound performance, ensuring that the audio output remains consistent even at different volume levels.

In terms of design, the JVC CB100 features a sleek and modern aesthetic that makes it an attractive addition to any space. It is lightweight and compact, allowing for easy portability, whether you’re heading to the beach, a picnic, or traveling. The durable construction of the speaker adds another layer of appeal, as it is built to withstand everyday wear and tear, making it both a stylish and practical choice for mobile audio solutions.

The speaker also includes an impressive battery life, providing several hours of playback time on a single charge. This longevity ensures that you can enjoy uninterrupted music sessions without the need for frequent recharges. Additionally, it is equipped with USB-C charging, which not only facilitates faster charging times but also enhances convenience for users.

Moreover, the JVC CB100 is designed with user-friendly controls, allowing individuals to easily navigate their playlists and adjust volume levels with the press of a button. This ease of use ensures that listeners can quickly switch between their favorite tracks or respond to calls with integrated hands-free capabilities.

In conclusion, the JVC CB100 combines portability, advanced audio technology, and modern design, making it an excellent choice for music lovers who appreciate quality sound and convenience in their listening experience. Whether at home or on the move, the CB100's features make it a versatile and reliable companion for all audio needs.
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