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Anleitung Zusammenfassung
It has been tested and found to comply with the limits for a Class A computing device pursuant to Subpart J of Part 1 5 of FCC Rules, which are designed to provide reasonable protection against such interference when operated in a commercial environment. .......................................................... For CANADA . This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications. The serial number of this product may be found on the bottom of the unit. You should note the serial number of this unit in the space provided and retain this book as a permanent record of your purchase to aid identification in the event of theft. Model No._ Serial No._ WARNING: TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. CONTENTS PREFACE .......................................... 2 FEATURES .......................................... 2 PRECAUTIONS .................................... 2 MAJOR OPERATING CONTROLS AND THEIR FUNCTIONS ................................ 3 CONNECTIONS .................................... 6 RACK MOUNTING .................................. 9 SPECIFICATIONS ................................ 10 PREFACE The Panasonic Video Distribution Amplifier, model WJ-300C, was designed to distribute the color/ monochrome video signal. Incorporates a video input selection switch, it enables the distribution of six (6) isolated video outputs from one (1) video input or three (3) each outputs from two (2) separated video inputs. FEATURES 1. One (1) input for six (6) outputs or two (2) different inputs for three (3) outputs each. 2. High stability and durability in operation with new circuitry. 3. Rack mountable or table top use. PRECAUTIONS 1. Keep power switch off while making cable connections. 2. Operate this unit within a temperature range of 14°F to 122°F (— 10°C * +50°C) and humidity is below 90*/.. 3. Power source should be 120V AC, 60Hz. 4. Do not attempt to disassemble the unit. In order to prevent electrical shock, do not remove covers. There are no user-serviceable parts inside. 5. Do not use strong or abrasive detergents when cleaning the unit. Do use a dry cloth to clean the unit when dirty. 6. All necessary procedures with regard to the installation of this product should be made by qualified service personnel or system installers. MAJOR OPERATING CONTROLS AND THEIR FUNCTIONS 5 6 2 3 11 10 -3- 1. Power ON/OFF Switch (POWER ON/OFF) 2. Power Indicator This indicator lights when the power switch is turned 3. Handle/Lock Ring (LOCK) This ring should be used when the unit is mounted on the rack. 4. Input Selection Switch (THR/SEP) This switch is used when selecting the input signal from single input or dual input. (a) THR position When a single video signal is supplied to the Input A Connector (5) or Input B Connector (10), set this switch to THR position (Fig, 1). This will provide six (6) identical and isolated outputs to the Output A Connector (6) and the Output B Connector (7). The Termination Switch (11) should be set to 75f2 position (Fig. 1). on, THR SEP ■f un Fig. 1 -4 - Note: When bridging or looping through the input signal, set the Termination Switch (11) to Hi-Z position (Fig. 2). (b) SEP position When the two (2) different video signals are supplied to the Input A Connector (5) and the Input B Connector (10), set this switch to SEP position (Fig. 3). This will provide three (3) identical and isolated outputs to the Output A Connector (6) and the Output B Connector (7) for each input. THR SEP mn nm = 75H Hi-Z | Fig. 2 THR SEP n— no Fig. 3 Note: When using SEP position for dual video input, each input is automatically terminated with 75 ohms regardless of the setting up of the Termination Switch (11). 5. Input A Connector (INPUT A) A composite video signal should be supplied to this connector. Note: Refer to the operation of the Input Selection Switch (4) and the Termination Switch (11). 6. Output A Connector (OUTPUT A) Three (3) identical and isolated video signals are provided to these connectors. Note: Refer to the operation of the Input Selection Switch (4). 7. Output B Connector (OUTPUT B) Three (3) identical and isolated video signals are provided to these connectors. Note: Refer to the operation of the Input Selection Switch (4). 8. Ground Terminal 9. Power Cord 10. Input B Connector (INPUT B) A composite video signal should be supplied to this connector. Note: Refer to the operation of the Input Selection Switch (4) and the Termination Switch (11). 11. Termination Switch (75fi Hi-Z) When a single video signal is supplied to either the Input A Connector (5) or the Input B Connector (10), set this switch to 75ii position.When bridging or looping through the input signal among the Input A Connector (5) and the Input B Connector (10), set thi...