Meridian Audio LD100/LD100U manual Line Doubler Operating Instructions, LD100 Control panel

LINE DOUBLER OPERATING INSTRUCTIONS

For reasons of clarity, this technical overview has been written specifically for the LD100. This description applies as well to the LD100U, with the following exceptions:

1.The LD100U accepts PAL and NTSC signals and switches automatically to the proper standard.

2.Tint control is not operational with PAL sources.

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The LD100 Control panel

Selecting a push button control lights the adjacent LED to indicate activation or selection of that partic- ular function.

1)Power ON/OFF – Press the button and the LED lights green to indicate POWER ON. When the LD100 powers up it is automatically set to oper- ate just as it was when it was last turned off. The Detail Enhancement circuits are automatically engaged at turn on.

1)Power ON/OFF - OFF – Another push on the switch and the power is cut off extinguishing the green LED. The Freeze Circuit is automatically disengaged, if in use, upon turn off.

INPUT SELECTION SWITCHES (4)

2)Video – refers to any composite NTSC video input - (e.g. VCR’s, laserdisc players, cable boxes, etc.) Press to select the Video input.

3)Y/C – Y/C refers to any Super-VHS (S-VHS or Hi-8) inputs - (e.g. laserdisc players, S-VHS or Hi-8 video tape recorders, satellite receivers, etc.) Press to select the Y/C input. Using the Y/C input on the LD100 allows one to realize all the benefits of maintaining the separation of the luminance (picture) and chrominance (color) signal through the video signal processing chain, thus avoiding rainbow patterns due to cross color interference.

4)RGB – RGB refers to the incoming video signal being broken down to the individual red, green and blue format more typically found in the pro- fessional and broadcast area. The most common

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4)use of this input is computers (running at 15.75 kHz). Press to select the RGB video input.

5)Component Input – Component Inputs are more commonly used in the broadcast studio or post-production environment. The video signal in its component form (Y, R-Y, B-Y) is carried in a 3-wire cable with BNC type connectors (e.g. MII™, D1, Betacam™, Betacam SP™, etc.). Press to select the Component video input.

PICTURE CONTROLS (4)

The four rotary-style picture controls, BRIGHT- NESS, CONTRAST, COLOR and TINT, are factory preset when pushed in. When pulled out they become active for manual adjustment. Pushing the knob back in after manual adjustment gives you the opportunity to compare your setting to the factory preset(s).

The rotary control format allows for a high degree of tactile feedback when one is adjusting the picture functions. Additionally, these controls provide a wider range of adjustment than those typically found on monitors and televisions.

In addition, automatic chroma level and phase con- trols (ACC and APC) are provided. As a conse- quence, all source-to-source variations in chroma phase and level are corrected.

When the signal is fed to a monitor through the RGB inputs the monitor color and tint controls are typically bypassed. Incorporating the LD100 in such a system, with its broad range controls, restores and enhances this control flexibility.

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