E-Compact:

Hitachi-Comark has published the following training modules for the E-Compact EC700HP-BB3 series of air-cooled UHF DTV transmitters.  These modules are available on YouTube as unpublished videos using the links below:

Module #1 - provides an overview of the EC701HP-BB3 (single PA) as well as the EC702HP-BB3 through EC704HP-BB3 (multi-PA) transmitters including rack layouts, AC power distribution, RF flow, back plane / harness  Link to Module #1

Module #2 - provides an overview of the E-Compact Power Amplifier chassis and MODBUS communications Link to Module #2

Module #3 - provides an overview of the EXACT-V2 DTV exciter hardware and an overview of the Graphic User Interface (GUI) available from the exciter Link to Module #3

Module #4 - provides an overview of the RF systems including internal cabinet PA combiners, RF loads, low pass filter and channel mask filters Link to Module #4

Module #5 - provides an overview of the transmitter's controller GUI and exciter GUI (what to know before turning on the transmitter system) Link to Module #5

Module #6 - shows the turn-on procedure for the transmitter system, and covers how to run corrections to the system to optimize RF performance  Link to Module #6

Module #7 - is the customer service overview for the E-Compact Series including how to access the CS website & service bulletins, Field Replaceable Parts, and Code/Firmware updates  Link to Module #7

Module #8 - shows the step-by-step process on how to replace a failed pallet (LDMOS Transistor) within the EC700HP-BB3 Power Amplifier (PA) chassis - Contact Customer Service for access to this Training Module