User's Manual

Innovator CHV400BTD ATSC Transmitter Table of Contents
Technical Manual, Rev. 0 i January 7, 2010
Table of Contents
Introduction ......................................................................................................1
Manual Overview ............................................................................................1
Assembly Designators .....................................................................................1
Safety ...........................................................................................................1
Contact Information........................................................................................3
Return Material Procedure ...............................................................................3
Limited One Year Warranty for Axcera Products..................................................4
Unpacking and Installation ................................................................................11
Unpacking ...................................................................................................11
Installation ..................................................................................................11
Tray Slide Installation ................................................................................12
AC Input Connections .......................................................................................13
Input and Output Connections ...........................................................................14
Initial On Site Turn On Procedure.......................................................................17
Typical System Operating Parameters ................................................................18
Typical Problems, Indications and Causes in CHV200B Tray...................................19
LCD Display and Front Panel LED Indicators ........................................................19
System Remote Connections .............................................................................21
LCD Front Panel Screens...................................................................................22
Operation Screens ........................................................................................24
Set Up Screens ............................................................................................31
System Description ..........................................................................................37
(Optional) Innovator CHVB Series Web Ethernet Interface ....................................41
(Optional) Innovator CHVB Series SNMP Ethernet Interface...................................47
Circuit Descriptions of Boards in the CHV200B System .........................................49
(A1) 8 VSB Demodulator Board (1308275) - Only used with BRD operation ......... 49
Overview..................................................................................................49
Microcontroller Functions............................................................................49
Jumper and DIP Switch Settings..................................................................49
(A2) Digital Modulator Board (1304883), Part of the Digital Modulator ................50
w/Power Conditioner (1309629) .....................................................................50
SMPTE-310 Input ......................................................................................50
Channel Coder ..........................................................................................50
Analog Output Section ...............................................................................50
Pilot Frequency Generation.........................................................................50
Voltage Requirements................................................................................51
(A3) IF Pre-Corrector Board (1308796) ...........................................................51
Pin-Diode Attenuator Circuit ........................................................................52
In Phase and Quadrature Corrector Circuits ..................................................52
Frequency Response Corrector Circuit..........................................................53
ALC Circuit ...............................................................................................53
Input Fault and Modulation Fault Circuitry ....................................................54
±12 VDC, +6.8 VDC, and VREF needed to operate the Board .........................55
(A4) Frequency Agile Upconverter Board (1309695) .........................................55
(A5) ALC Board, Innovator CX Series (1308570) ..............................................56
(A6) Amplifier Assembly (1313959) – Used in the CHV20B Tray .........................57
(A6-A1) VHF HB Pre-Driver Assembly (1313899) ..........................................57
(A6-A2) 50 Watt Amplifier Pallet, Italmec (1313484) .....................................58
(A6) 200 Watt Driver Amplifier Assembly (1313912) – Used in the CHV200B ....... 58
(A6-A1) 50 Watt Amplifier Pallet, Italmec (1313484) .....................................58
(A6-A2) 500 Watt Amplifier Pallet, Italmec (1313581) ...................................58
(A7) Output Metering Detector Board (1313747) ..............................................58
(A8) Control Card, Innovator CX (1312543) .....................................................59