PUBLICATION TSM 20-308 TECHNICAL MANUAL 100 WATT UHF AMPLIFIER FOR MX100U SERIES TV TRANSMITTER/TRANSLATOR LARCAN INC.
MX Series - 100 Watt UHF AMPLIFIER Section Title Page NOTICES, ETC. ...............................................................................................................................3 SAFETY AND HEALTH WARNINGS ............................................................................. 4&5 GENERAL SERVICE INFORMATION 1) Parts Lists Explained..........................................................................................5 2) Interpreting LARCAN Drawing Numbers........................
MX Series - 100 Watt UHF AMPLIFIER Section Title Page PUB99-32 Heatsink Assembly: 1. Heatsink Assembly Description............................................................32-1 2. Front End Module.................................................................................32-2 3. IPA1 Module.........................................................................................32-2 4. IPA2/PA Module ...................................................................................32-4 5.
MX100 Series - 100 Watt UHF AMPLIFIER NOTICES, ETC.: THIS EQUIPMENT USES STATIC-SENSITIVE CMOS INTEGRATED CIRCUITS. Observe proper handling precautions (indicated in Maintenance Sections) at all times when working with this equipment. TOXIC MATERIALS NOTICE... IMPORTANT... Effective thermal management in certain semiconductor devices in this equipment is possible only through the use of Beryllium Oxide ceramic materials.
MX100 Series - 100 Watt UHF AMPLIFIER TRANSMITTER SAFETY PRECAUTIONS: AC VOLTAGES USED FOR THE OPERATION OF THIS EQUIPMENT ARE DANGEROUS TO HUMAN LIFE! This instruction manual has been written for the general guidance and information of operation, maintenance and service personnel who are aware of, and are familiar with, the hazards of working with high powered electronic circuits.
MX100 Series - 100 Watt UHF AMPLIFIER TSM 20-308 rev 1: April 3, 2000 5 100 W UHF Amplifier
MX100 Series - 100 Watt UHF AMPLIFIER HEALTH WARNINGS: 1. Non-metallic coverings of some coaxial cables used in this equipment are FLAMMABLE and may transmit fire when ignited. Other wire coverings are not capable of supporting combustion, but any non-metallic covering when heated sufficiently may emit dense smoke and acid gases which can be highly TOXIC and often CORROSIVE. 2. Be careful when replacing RF power transistors.
MX100U Series - 100 Watt UHF AMPLIFIER 2. GENERAL SERVICE INFORMATION Interpreting LARCAN Drawing Numbers (continued). Other assemblies may be shown as a number of separate assemblies (Parts 1, 2, 3, 4, or 5), on several sheets of a single drawing. The drawing "parts" all are assembled the same way, but vary in quantity and type of components. For vendor components such as resistors and capacitors, often a generic drawing describing basic specifications, but having many "parts", will be used.
MX100U Series - 100 Watt UHF AMPLIFIER GENERAL SERVICE INFORMATION 4. List of Assembly Prefixes PREFIX 1 Main Power Supply Chassis Assembly Sub-assembly prefix 1PS1 +12VDC Control power supply Sub-assembly prefix 2 Control Board PREFIX 2 Main Amplifier Chassis Assembly Sub-assembly prefix 3 Status Display Board “ “ 4 Metering Board “ “ 5 Voltage Regulator “ “ 6 Front End Module “ “ 7 IPA1 Module “ “ 8 IPA2 Module Sub-assembly prefix 9A, 9B PA Modules 5.
MX100 Series - 100 Watt UHF AMPLIFIER GENERAL DESCRIPTION INTRODUCTION This manual describes the LARCAN 100 watt UHF amplifier which is designed to operate on channels 14 through 69. This solid state 100 W UHF amplifier was designed to operate conservatively at 100W peak sync visual RF power, and 10W average aural carrier RF power, with superb performance, reliability and operating economy.
MX100 Series - 100 Watt UHF AMPLIFIER GENERAL DESCRIPTION should an unlikely overheating condition occur. The amplifier chassis requires 120VAC and+35Vdc. They come from the power supply chassis assembly. In the amplifier chassis, this +35Vdc is fed to a dual regulator board which supplies regulated +28Vdc to the amplifier modules. The amplifier cooling fans requires the 120Vac. The control's 12Vdc linear power supply is rated for 0.9A and is powered upon closing of the power supply `POWER’ circuit breaker.
MX100 Series - 100 Watt UHF AMPLIFIER GENERAL DESCRIPTION ELECTRICAL AND MECHANICAL SPECIFICATIONS NTSC Power Output: ................................................................................................ Visual 100 W peak, Aural 10W Diplexing: ......................................................................................................................internally, 10:1 V to A Frequency Range: .................................................................................
MX100 Series - 100 Watt UHF AMPLIFIER GENERAL DESCRIPTION ABOUT THIS MANUAL It will be observed that this manual consists of a collection of separate publications, each one of which describes its own module or section of the equipment. Parts lists, applicable alignment instructions, and illustrations which generally consist of assembly diagrams and schematics are included in each of these booklets, which are identified by a "PUB" number and revision.
MX100 Series - 100 Watt UHF AMPLIFIER GENERAL DESCRIPTION Notes: TSM 20-308 rev 1: April 3, 2000 13 100 W UHF Amplifier
