User manual MARSHALL VR44P

[. . . ] Marshall Broadcast Multimedia Division V-R44P Instruction Sheet http://www. LCDRacks. com · e-mail: sales@mars-cam. com The V-R44P is a rack mountable unit that offers four 4" high-resolution active matrix LCD panels. Each of the four 480 × 234 pixel screens has it's own set of controls for color, tint, contrast, and brightness. Each panel has it's own input with loopthrough capability, a self-powered 3 color tally system and auto-recognition of NTSC or PAL video formats. [. . . ] Be certain that these specifications are met when using a power supply other than the one supplied to you by Marshall Electronics. The center pin on the coaxial power connector for the V-R44P is the POSITIVE terminal and the outside ring is NEGATIVE. Any battery operation of the V-R44P must have this polarity configuration. The Video inputs on the rear of the panel are 75 Ohm self-terminated. The loop through feature uses active components and is always active as long as power is supplied to the unit. Each screen has the capability to automatically detect NTSC or PAL signals. Each screen is independently controlled allowing the user to view a PAL signal on one screen and an NTSC signal on the other. The tally system on the V-R44P is accessed via the DB-15 connector on the back of the unit. The system works by closing the contacts between a ground pin and the corresponding LED pin. The system is self powered, DO NOT GIVE POWER TO THE PINS. The pinout is as follows: Monitor Monitor Monitor Monitor 1 2 3 4 Green Red Pin 1 Pin 2 Pin 6 Pin 7 Pin 11 Pin 12 Pin 5 Pin 10 Yellow Pin 3 Pin 8 Pin 13 Pin 15 PINS 4, 9 and 14 ARE COMMON GROUNDS 2. 0" Rear View Display Viewing Area Dot Pitch Picture Elements Inputs Brightness Side View Dimensions Power Consumption 4" LCD 3. 23" × 2. 43" Active Matrix each panel 0. 171mm x NTSC/PAL auto 480H x 234V 0. 264mm recognition 300 cd/m² 19. 125W x 3. 43H x 2. 0D 12 VDC 3. 0 Amps Marshall 7. Before the tilt function can work properly, it is important that the unit be mounted correctly in the rack using four screws and the ears properly aligned vertically. The tilt function on the V-R44P is operated using the two shoulder screws located on each side of the unit as shown in fig. By placing your index finger and thumb on each side as shown in fig. [. . . ] Misuse, abnormal service or handling, improper alterations or modifications in design or construction, voids this warranty. No sales personnel of the seller, nor any other person is authorized to make any warranties other than those described above, or to extend the duration of any warranties on behalf of Marshall Electronics, beyond the time period described above. Due to constant effort to improve products and product features, specifications may change without notice. [. . . ]