Maintenance Manual

Table Of Contents
vi
©2021 Broadcast Electronics
Table of Contents
General Description ................................................................................................................................................ 9
Transmitter Review ............................................................................................................................................. 11
Receiver Review .................................................................................................................................................... 13
GTX and GRX Overall Data ................................................................................................................................. 15
GTX Transmitter Only ......................................................................................................................................... 16
GRX Receiver Only ................................................................................................................................................ 17
Rack Mounting and Cooling .............................................................................................................................. 19
Control Functions .................................................................................................................................................. 19
GTX Parallel Remote ............................................................................................................................................ 19
GRX Parallel Remote ............................................................................................................................................ 20
Battery or DC Supply ........................................................................................................................................... 20
3.5.1 Notes on battery and wiring .................................................................................................................................. 20
Password Organization ...................................................................................................................................... 23
Factory Default Passwords ............................................................................................................................... 23
Display Menus and Navigation ........................................................................................................................ 23
4.3.1 START & DEFAULT FIELDS ................................................................................................................................... 24
Timeouts and Default Fields ........................................................................................................................ 24
Field INIT: Initialization Display ............................................................................................................... 25
Field #00: Escape / Default Display .......................................................................................................... 25
Field #01: Operation / Setup Selection ................................................................................................... 25
Field #20: Enter Password............................................................................................................................ 25
4.3.2 TRANSMITTER FIELDS & MENU TREE ............................................................................................................. 26
OPERATION MENUS ........................................................................................................................................ 27
Field #02: Direct & Reflected Power ........................................................................................................ 27
Field #04: Multiplex Signal Level (Output Modulation) .................................................................. 27
Field #05: Left & Right Signal Level in dB .............................................................................................. 27
Field #06: L & R Signal Level / Analog Meter ....................................................................................... 27
Field #07: RDS / SCA Auxiliary Modulation Level .............................................................................. 28
Field #09: Internal Voltages ......................................................................................................................... 28
Field #10: Temperature, Data and Clock ................................................................................................ 28
SETUP MENUS .................................................................................................................................................... 29
Field #21: Local/Remote control setup .................................................................................................. 29
Field #22: Transmission Frequency setup ............................................................................................ 29
Field #23: Output Power setup ................................................................................................................... 29
Field #24: LF Modulation Input Level setup ......................................................................................... 29
Field #25: Auxiliary Input Level setup .................................................................................................... 30
Field #26: Limiter setup ................................................................................................................................. 30
Field #27: Transmission Mode, and Pre-emphasis Setup ............................................................... 31
Field #28: Reference Deviation setup ...................................................................................................... 31
Field #29: Display Contrast setup ............................................................................................................. 31
Field #30: Time & Date setup ...................................................................................................................... 31
Field #31: Elapsed Time ................................................................................................................................ 31
Field #32: Password Management ............................................................................................................ 32
Field #33: Alarm Setup and Display ......................................................................................................... 33
Field #34: I/O Pin Allocation and Logic Level setup ......................................................................... 33