UBS Axcera CU150BTD User Manual

Technical Manual

Innovator,

CU5-500BTD/BRD,

ATSC Transmitter/

Regenerative Translator

Axcera, LLC

103 Freedom Drive, P.O. Box 525 Lawrence, PA 15055-0525 USA

PHONE: [phone] • FAX [phone]

www.axcera.com • [e-mail]

Innovator CU5-500BTD/BRD ATSC Transmitter/ Table of Contents

Regenerative Translator

Table of Contents

Introduction ......................................................................................................1

Manual Overview ............................................................................................1

Assembly Designators .....................................................................................1

Safety ...........................................................................................................1

Contact Information ........................................................................................2

Return Material Procedure ...............................................................................2

Limited One Year Warranty for Axcera Products..................................................3

Unpacking and Installation ................................................................................11

Unpacking ...................................................................................................11

Installation ..................................................................................................11

Tray Slide Installation ................................................................................11

AC Input Connections .......................................................................................12

Input and Output Connections ...........................................................................12

Initial On Site Turn On Procedure.......................................................................15

Typical System Operating Parameters ................................................................16

Typical System Problems, Indications and Causes ................................................16

LCD Display and Front Panel LED Indicators ........................................................17

Transmitter Remote Connections .......................................................................18

LCD Front Panel Screens...................................................................................20

Operation Screens ........................................................................................21

Set Up Screens ............................................................................................25

System Description ..........................................................................................28

(Optional) Innovator CXB Series Web Ethernet Interface ......................................30

Circuit Descriptions of Boards in the CU5, CU30, CU50 & CU100 Transmitters .........34

(A1) 8 VSB Demodulator Board (1308275) - Only used with BRD operation ......... 34

Overview..................................................................................................34

Microcontroller Functions............................................................................34

Jumper and DIP Switch Settings..................................................................34

(A2) Digital Modulator Board (1304883) ..........................................................34

SMPTE-310 Input ......................................................................................34

Channel Coder ..........................................................................................35

Analog Output Section ...............................................................................35

Pilot Frequency Generation.........................................................................35

Voltage Requirements ................................................................................35

(A3) IF Pre-Corrector Board (1308796) ...........................................................36

Pin-Diode Attenuator Circuit ........................................................................36

In Phase and Quadrature Corrector Circuits ..................................................37

Frequency Response Corrector Circuit ..........................................................38

ALC Circuit ...............................................................................................38

Input Fault and Modulation Fault Circuitry ....................................................39

±12 VDC, +6.8 VDC, and VREF needed to Operate the Board .........................39

(A4) Frequency Agile Upconverter Board (1309695) .........................................40

(A5) ALC Board, Innovator CX Series (1308570) ..............................................41

(A6) Amplifier Assembly (1309621) – Used in the CU5 ......................................42

(A6-A1) 2 Stage UHF Amplifier Board, 24V (1309608) ...................................42

(A6) Amplifier Assembly (1312797) – Used in the CU30, 50, 250 & 500 ..............43

(A6-A1) 2 Stage UHF Amplifier Board (1308784) ..........................................43

(A6-A2) RF Module Pallet w/Philips Transistors (1300116)..............................43

(A6) Amplifier Assembly (1312827) – Used in the CU100 & CU125 .....................44

(A6-A1) 1 Watt UHF Amplifier Module (1311170) ..........................................44

(A6-A2) BL871 Single Stage Amplifier Board (1311041).................................44

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(A6-A3) Dual 878 Pallet Assembly (1310138) ...............................................44

(A7) Output Detector Board (1308685 or 1312207 in the CU100BTD/BRD)..........45

(A8) Control Card, Innovator CX (1312543) .....................................................45

(A9 & A10) Power Supplies used in CU5, CU30, CU50 & CU100 and Driver for

CU250 & CU500 ...........................................................................................46

Circuit Descriptions of Boards in the CU250, 250 Watt and CU500, 500 Watt ATSC

Amplifier Trays ................................................................................................47

(A5) Amplifier Control Board (1309822) ..........................................................47

(A4) 125 Watt Amplifier Heatsink Assembly (1310161) used in the CU125 ..........47

(A4) 250 Watt Amplifier Heatsink Assembly (1308921) used in the CU250 ..........47

2 Way Splitter Board (1308933) (Part of 250 Watt Amplifier Heatsink.............. 47

LDMOS Amplifier Pallets (1308690) (Used in both Amplifier Heatsink Assemblies)

...............................................................................................................47

2 Way Combiner Board (1309804) (Part of 250 Watt Amplifier Heatsink .......... 48

(A1 & A2) 125 Watt and 250 Watt Amplifier Tray Power Supplies ....................48

(Optional) ASI to S310 Converter Module ...........................................................49

ASI Motherboard (1311179) .......................................................................49

ASI to 310 Conversion Board, Non-SFN (1311219) .........................................49

System Set Up Procedure .................................................................................50

Set Up of the LO1 and LO2 Samples on Upconverter Board ................................ 50

Set Up of the IF Precorrector Board in the Transmitter ......................................51

ALC Board Set-Up, Forward and Reflected Power Calibration for CU5, CU30, CU50

and CU100 Systems......................................................................................52

Forward and Reflected Power Calibration of CU250 and CU500 Systems .............. 53

Linearity Correction Adjustment (Non-Linear Distortions) ..................................54

Linearity Correction Adjustment (Linear Distortions) .........................................55

APPENDIX A .........................................................................................................1

Innovator CXB Series Transmitter System ................................................................1

Drawing List .........................................................................................................1

APPENDIX B .........................................................................................................1

Innovator CXB Series Transmitter ...........................................................................1

Subassemblies & Boards Drawing List ......................................................................1

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Innovator CU5-500BTD/BRD ATSC Transmitter/ Introduction
Regenerative Translator

Introduction

Manual Overview

This manual contains the description of the Innovator CU5-500BTD/BRD ATSC
Transmitter/Regenerative Translator and the circuit descriptions of the boards, which
make up the transmitter. The manual also describes the installation, setup and
alignment procedures for the transmitter. Appendix A of this manual contains the
system level drawings for the Innovator CU5-500BTD/BRD ATSC
Transmitter/Regenerative Translator. NOTE: Information and drawings on the Axciter, if
part of your system, are contained in the separate Axciter Instruction Manual.

Assembly Designators

Axcera has assigned assembly numbers, Ax designations such as A1, where x=1,2,3…etc,
to all assemblies, modules, and boards in the system. These designations are referenced
in the text of this manual and shown on the block diagram and interconnect drawings
provided in Appendix A.

The cables that connect between the boards within a tray or assembly and that connect
between the trays, racks and cabinets are labeled using Brady markers. Figure 1 is an
example of a Brady marked cable. There may be as few as two or as many as four
Markers on any one cable. These Brady markers are read starting furthest from the
connector. If there are four Brady Markers, this marker is the transmitter number such
as transmitter 1 or translator 2. The next or the furthest Brady Marker is the rack or
cabinet number on an interconnect cable or the board number within a tray. The next
number on an interconnect cable is the Tray location or number. The Brady marker
closest to the connector is the jack or connector number on an interconnect cable or the
jack or connector number on the board within a tray.

Figure 1: Brady Marker Identification

Drawing

Safety

The Innovator CU5-500BTD/BRD ATSC Transmitter/Regenerative Translator systems
manufactured by Axcera are designed to be easy to use and repair while providing
protection from electrical and mechanical hazards. Please review the following warnings
and familiarize yourself with the operation and servicing procedures before working on the
transmitter system.

Read All safety Instructions – All of the safety instructions should be read and
understood before operating this equipment.

Retain Manuals – The manuals for the transmitter should be retained at the transmitter
site for future reference. Axcera provides two manuals for this purpose; one manual can
be left at the office while the other can be kept at the site.

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Heed all Notes, Warnings, and Cautions – All of the notes, warnings, and cautions
listed in this safety section and throughout the manual must be followed.

Follow Operating Instructions – All of the operating and use instructions for the
transmitter should be followed.

Cleaning – Unplug or otherwise disconnect all power from the equipment before cleaning.
Do not use liquid or aerosol cleaners. Use only a damp cloth for cleaning.

Ventilation – Openings in the cabinet and module front panels are provided for
ventilation. To ensure the reliable operation of the transmitter, and to protect the unit
from overheating, these openings must not be blocked.

Servicing – Do not attempt to service this product yourself until becoming familiar with
the equipment. If in doubt, refer all servicing questions to qualified Axcera service
personnel.

Replacement Parts – When replacement parts are used, be sure that the parts have the
same functional and performance characteristics as the original part. Unauthorized
substitutions may result in fire, electric shock, or other hazards. Please contact the
Axcera Technical Service Department if you have any questions regarding service or
replacement parts.

Contact Information

The Axcera Field Service Department can be contacted by PHONE at 1-724-873-8100 or
by FAX at 1-724-873-8105.

Before calling Axcera, please be prepared to supply the Axcera technician with answers to
the following questions. This will save time and help ensure the most direct resolution to
the problem.

1. What are your Name and the Call Letters for the station?

2. What are the model number and type of transmitter?

3. Is the transmitter digital or analog?

4. How long has the transmitter been on the air? (Approximately when was the
transmitter installed?)

5. What are the symptoms being exhibited by the transmitter? Include the current
front panel LCD readings and what the status LED is indicating on the front panel
of the tray. If possible, include the LCD readings before the problem occurred.

Return Material Procedure

To insure the efficient handling of equipment or components that have been returned for
repair, Axcera requests that each returned item be accompanied by a Return Material
Authorization Number (RMA#). The RMA# can be obtained from any Axcera Field
Service Engineer by contacting the Axcera Field Service Department at 1-724-873-8100
or by fax at 1-724-873-8105. This procedure applies to all items sent to the Field
Service Department regardless of whether the item was originally manufactured by
Axcera.

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When equipment is sent to the field on loan, the RMA# is included with the unit. The RMA#
is intended to be used when the unit is returned to Axcera. In addition, all shipping
material should be retained for the return of the unit to Axcera.

Replacement assemblies are also sent with the RMA# to allow for the proper routing of the
exchanged hardware. Failure to close out this type of RMA# will normally result in the
customer being invoiced for the value of the loaner item or the exchanged assembly.

When shipping an item to Axcera, please include the RMA# on the packing list and on the
shipping container. The packing slip should also include contact information and a brief
description of why the unit is being returned.
Please forward all RMA items to:

AXCERA, LLC

103 Freedom Drive

P.O. Box 525

Lawrence, PA 15055-0525 USA

For more information concerning this procedure, call the Axcera Field Service Department
at 1-724-873-8100.

Axcera can also be contacted through e-mail at [e-mail] and on the Web at

www.axcera.com.

Limited One Year Warranty for Axcera Products

Axcera warrants each new product that it has manufactured and sold against defects in
material and workmanship under normal use and service for a period of one (1) year
from the date of shipment from Axcera's plant, when operated in accordance with
Axcera's operating instructions. This warranty shall not apply to tubes, fuses, batteries,
bulbs or LEDs.

Warranties are valid only when and if (a) Axcera receives prompt written notice of
breach within the period of warranty, (b) the defective product is properly packed and
returned by the buyer (transportation and insurance prepaid), and (c) Axcera
determines, in its sole judgment, that the product is defective and not subject to any
misuse, neglect, improper installation, negligence, accident, or (unless authorized in
writing by Axcera) repair or alteration. Axcera's exclusive liability for any personal
and/or property damage (including direct, consequential, or incidental) caused by the
breach of any or all warranties, shall be limited to the following: (a) repairing or
replacing (in Axcera's sole discretion) any defective parts free of charge (F.O.B. Axcera’s
plant) and/or (b) crediting (in Axcera's sole discretion) all or a portion of the purchase
price to the buyer.

Equipment furnished by Axcera, but not bearing its trade name, shall bear no warranties
other than the special hours-of-use or other warranties extended by or enforceable
against the manufacturer at the time of delivery to the buyer.

NO WARRANTIES, WHETHER STATUTORY, EXPRESSED, OR IMPLIED, AND NO
WARRANTIES OF MERCHANTABILITY, FITNESS FOR ANY PARTICULAR
PURPOSE, OR FREEDOM FROM INFRINGEMENT, OR THE LIKE, OTHER THAN AS
SPECIFIED IN PATENT LIABILITY ARTICLES, AND IN THIS ARTICLE, SHALL
APPLY TO THE EQUIPMENT FURNISHED HEREUNDER.

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 HIGH VOLTAGE 

DO NOT ATTEMPT TO REPAIR OR TROUBLESHOOT THIS EQUIPMENT UNLESS
YOU ARE FAMILIAR WITH ITS OPERATION AND EXPERIENCED IN
SERVICING HIGH VOLTAGE EQUIPMENT. LETHAL VOLTAGES ARE PRESENT
WHEN POWER IS APPLIED TO THIS SYSTEM. IF POSSIBLE, TURN OFF
POWER BEFORE MAKING ADJUSTMENTS TO THE SYSTEM.

 RADIO FREQUENCY RADIATION HAZARD 

MICROWAVE, RF AMPLIFIERS AND TUBES GENERATE HAZARDOUS RF
RADIATION THAT CAN CAUSE SEVERE INJURY INCLUDING CATARACTS,
WHICH CAN RESULT IN BLINDNESS. SOME CARDIAC PACEMAKERS MAY BE
AFFECTED BY THE RF ENERGY EMITTED BY RF AND MICROWAVE
AMPLIFIERS. NEVER OPERATE THE TRANSMITTER SYSTEM WITHOUT A
PROPERLY MATCHED RF ENERGY ABSORBING LOAD ATTACHED. KEEP
PERSONNEL AWAY FROM OPEN WAVEGUIDES AND ANTENNAS. NEVER
LOOK INTO AN OPEN WAVEGUIDE OR ANTENNA. MONITOR ALL PARTS OF
THE RF SYSTEM FOR RADIATION LEAKAGE AT REGULAR INTERVALS.

 WARNING!!!

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EMERGENCY FIRST AID INSTRUCTIONS

Personnel engaged in the installation, operation, or maintenance of this equipment are
urged to become familiar with the following rules both in theory and practice. It is the
duty of all operating personnel to be prepared to give adequate Emergency First Aid and
thereby prevent avoidable loss of life.

RESCUE BREATHING

1. Find out if the person is
breathing.

You must find out if the
person has stopped breathing.
If you think he is not
breathing, place him flat on
his back. Put your ear close to
his mouth and look at his
chest. If he is breathing you
can feel the air on your
cheek. You can see his chest
move up and down. If you do
not feel the air or see the
chest move, he is not
breathing.

2. If he is not breathing,
open the airway by tilting his
head backwards.

Lift up his neck with one
hand and push down on his
forehead with the other. This
opens the airway. Sometimes
doing this will let the person
breathe again by himself.

3. If he is still not breathing,
begin rescue breathing.

-Keep his head tilted
backward. Pinch nose shut.

-Put your mouth tightly over
his mouth.

-Blow into his mouth once
every five seconds

-DO NOT STOP rescue
breathing until help arrives.

LOOSEN CLOTHING - KEEP
WARM

Do this when the victim is
breathing by himself or help
is available. Keep him as
quiet as possible and from
becoming chilled. Otherwise
treat him for shock.

BURNS

SKIN REDDENED: Apply ice cold water to
burned area to prevent burn from going
deeper into skin tissue. Cover area with a
clean sheet or cloth to keep away air. Consult
a physician.

SKIN BLISTERED OR FLESH CHARRED:
Apply ice cold water to burned area to
prevent burn from going deeper into skin
tissue.

Cover area with clean sheet or cloth to keep
away air. Treat victim for shock and take to
hospital.

EXTENSIVE BURN - SKIN BROKEN: Cover
area with clean sheet or cloth to keep away
air. Treat victim for shock and take to
hospital.

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Innovator CU5-500BTD/BRD ATSC Transmitter/ Introduction
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dBm, dBw, dBmV, dBµµµµV, & VOLTAGE

EXPRESSED IN WATTS

50 Ohm System

WATTS PREFIX dBm dBw dBmV dBµV VOLTAGE

1,000,000,000,000 1 TERAWATT +150 +120
100,000,000,000 100 GIGAWATTS +140 +110
10,000,000,000 10 GIGAWATTS +130 +100
1,000,000,000 1 GIGAWATT +120 + 99
100,000,000 100 MEGAWATTS +110 + 80
10,000,000 10 MEGAWATTS +100 + 70
1,000,000 1 MEGAWATT + 90 + 60
100,000 100 KILOWATTS + 80 + 50
10,000 10 KILOWATTS + 70 + 40
1,000 1 KILOWATT + 60 + 30
100 1 HECTROWATT + 50 + 20
50 + 47 + 17
20 + 43 + 13
10 1 DECAWATT + 40 + 10
1 1 WATT + 30 0 + 77 +137 7.07V

0.1 1 DECIWATT + 20 - 10 + 67 +127 2.24V

0.01 1 CENTIWATT + 10 - 20 + 57 +117 0.707V

0.001 1 MILLIWATT 0 - 30 + 47 +107 224mV

0.0001 100 MICROWATTS - 10 - 40

0.00001 10 MICROWATTS - 20 - 50

0.000001 1 MICROWATT - 30 - 60

0.0000001 100 NANOWATTS - 40 - 70

0.00000001 10 NANOWATTS - 50 - 80

0.000000001 1 NANOWATT - 60 - 90

0.0000000001 100 PICOWATTS - 70 -100

0.00000000001 10 PICOWATTS - 80 -110

0.000000000001 1 PICOWATT - 90 -120

TEMPERATURE CONVERSION

°°°°F = 32 + [(9/5) °°°°C]

°°°°C = [(5/9) (°°°°F - 32)]

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USEFUL CONVERSION FACTORS

TO CONVERT FROM TO MULTIPLY BY

mile (US statute) kilometer (km) 1.609347
inch (in) millimeter (mm) 25.4
inch (in) centimeter (cm) 2.54
inch (in) meter (m) 0.0254
foot (ft) meter (m) 0.3048
yard (yd) meter (m) 0.9144
mile per hour (mph) kilometer per hour(km/hr) 1.60934
mile per hour (mph) meter per second (m/s) 0.44704
pound (lb) kilogram (kg) 0.4535924
gallon (gal) liter 3.7854118
U.S. liquid
(One U.S. gallon equals 0.8327 Canadian gallon)
fluid ounce (fl oz) milliliters (ml) 29.57353
British Thermal Unit watt (W) 0.2930711
per hour (Btu/hr)
horsepower (hp) watt (W) 746

NOMENCLATURE OF FREQUENCY BANDS

FREQUENCY RANGE DESIGNATION

3 to 30 kHz VLF - Very Low Frequency
30 to 300 kHz LF - Low Frequency
300 to 3000 kHz MF - Medium Frequency
3 to 30 MHz HF - High Frequency
30 to 300 MHz VHF - Very High Frequency
300 to 3000 MHz UHF - Ultrahigh Frequency
3 to 30 GHz SHF - Superhigh Frequency
30 to 300 GHz EHF - Extremely High Frequency

LETTER DESIGNATIONS FOR UPPER FREQUENCY BANDS

LETTER FREQ. BAND

L 1000 - 2000 MHz
S 2000 - 4000 MHz
C 4000 - 8000 MHz
X 8000 - 12000 MHz
Ku 12 - 18 GHz
K 18 - 27 GHz
Ka 27 - 40 GHz
V 40 - 75 GHz
W 75 - 110 GHz

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Innovator CU5-500BTD/BRD ATSC Transmitter/ Introduction

0

-10

-20

-30

-40

-50

-60

-70

S

dB

Regenerative Translator

RETURN LOSS VS. VSWR

R
E
T
U
R
N

L
O
S

1.001 1.01 1.1 2.0

VSWR

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Innovator CU5-500BTD/BRD ATSC Transmitter/ Introduction
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ABBREVIATIONS/ACRONYMS

AC Alternating Current

AFC Automatic Frequency
Control

ALC Automatic Level Control

AM Amplitude modulation

AGC Automatic Gain Control

ARD A-line, Regenerative
Translator, Digital

ATD A-line, Transmitter,
Digital

ATSC Advanced Television

Systems Committee (Digital)

AWG American wire gauge

BER Bit Error Rate

BRD B-line, Regenerative
Translator, Digital

BTD B-line, Transmitter,
Digital

BW Bandwidth

COFDM Coded Orthogonal Frequency

Division Multiplexing
modulation scheme

DC Direct Current

D/A Digital to analog

DSP Digital Signal Processing

DTV Digital Television

dB Decibel

dBm Decibel referenced to

1 milliwatt

dBmV Decibel referenced to
1 millivolt

dBw Decibel referenced to 1 watt

FEC Forward Error Correction

FM Frequency modulation

FPGA Field Programmable Gate

Array

Hz Hertz

ICPM Incidental Carrier Phase
Modulation

I/P Input

IF Intermediate Frequency

LED Light emitting diode

LSB Lower Sideband

LDMOS Lateral Diffused Metal Oxide

Semiconductor Field Effect
Transistor

MPEG Motion Pictures Expert
Group

NTSC National Television
Systems Committee (Analog)

O/P Output

PLL Phase Locked Loop

PCB Printed circuit board

QAM Quadrature Amplitude

Modulation

SMPTE Society of Motion Picture
and Television Engineers

VSB Vestigial Side Band

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Unpacking and Installation

Unpacking

Axcera certifies that upon leaving our facility all equipment was undamaged and in
proper working order. It is imperative that all packages be inspected immediately upon
arrival to verify that no damage occurred in transit to the site. Inspect all packages for
exterior damage and make note of any dents, broken seals, or other indications of
improper handling. Carefully open each package and inspect the contents for damage.
Verify that all materials are enclosed as listed on the packing slip. Report any shortages
to Axcera. In the event any in transit damage is discovered report it to the carrier.
Axcera is not responsible for damage caused by the carrier. If the equipment is not
going to be installed immediately, return all items to their original packaging for safe
storage. Save all packing material for future use. If equipment is ever removed from
the site, the original packaging will ensure its safe transport.

Installation

The Innovator CXB Series transmitters are designed for simple installation. Expensive
test equipment is not required for installation and set up and to keep a system
operational. Prior to installing the product, review the following items. Check that they
been installed, tested and/or inspected.

Building Structure
Electrical Systems
Heating and Air Conditioning
Receive Antenna or Satellite Dish and input cabling
Optional ASI to S310 Converter if needed
Transmit Antenna and output transmission line

The Innovator CXB Series transmitters are 17” wide standard rack mountable trays.
They are supplied with side mounted Tray Slides for ease of installation and removal.
The CU5, CU30, CU50 & CU100 transmitters are 3 RU, 5.25”, high. The CU250 and
CU500 transmitters are 7 RU, 12.25”, high which is 3 RU, 5.25”, for the CU30 driver and
4 RU, 7”, for the Innovator CXB Series amplifier tray. Also needed for FCC compliance
operation is an ATSC filter on the broadcast channel that connects to the output of the
CU5 thru CU500 transmitters. Space must be provided for the ATSC filter whose
dimensions will vary depending on manufacturer and channel. Refer to vendor supplied
information included with your ATSC filter for specific dimensions. In the CU250 and
CU500 transmitters, a low pass filter is connected between the amplifier tray and the
ATSC mask filter. Space must be provided for the low pass filter whose dimensions will
vary depending on manufacturer and channel. Refer to vendor supplied information
included with your low pass filter for specific dimensions. Make sure that the space
provided for the CX Series equipment is sufficient and includes the external filters.
Check that any additional equipment that is included in the system, which extends
above or to the side of the mounting rack, has sufficient clearance space. Refer to the
custom racking plan for the system, if prepared, for detailed information.

Tray Slide Installation

If the transmitter is pre-mounted in a cabinet skip this section. Locate the tray slides
included in the installation material for your system. See Figure 3-1 and the
manufacturers instructions, included with the tray slides, for the cabinet mounting
instructions for the tray slides. Install the left tray slide into the left side of the cabinet (as

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viewed from the rear). Allow 3 RU, 5.25”, of space between the trays for a CU5, 30, 50 or
100 transmitter. Allow a space of 7 RU, 12.25”, which is 3 RU, 5.25”, for the CU30 driver
and 4 RU, 7”, for the Innovator CXB Series amplifier tray. Space must also be provided
for the ATSC filter and low pass filter, if present, whose dimensions will vary depending
on manufacturer and channel. Secure the left tray slide by connecting it to the front and
rear mounting bars using No. 10 screws and the bar nuts that have been provided. Install
the tray slide on the right side of the cabinet (as viewed from the rear) making sure that it
is aligned with the tray slide on the left side. Secure the slide by connecting it to the front
and rear mounting bars using No. 10 screws and the bar nuts that have been provided.
Repeat this process for any other trays if purchased. With both slides in place, slide the
tray or trays into the cabinet.

Figure 2: Chassis Trak Cabinet Slides

AC Input Connections

Refer to Figures 3 and 4 that follow for location of the jacks and connectors of the
transmitter. The CU5, CU30, CU50 and CU100 transmitters will operate with an input
voltage of 85-264VAC. Check that the AC switch, located on the rear of the tray above
the AC power jack, is OFF. Connect the AC power cord supplied with the tray from J6 on
the rear of the tray to the AC source. If your system has the optional ASI to S310
Converter, check that it is connected to the AC source.

If your system is a CU250 or a CU500, it also contains a 250 Watt or 500 Watt amplifier
tray. The 250 Watt or 500 Watt amplifier tray is configured for 230 VAC operation only.
Check that the ON/OFF circuit breaker, located on the rear panel under the AC power
jack, is OFF. Connect the AC power cord supplied with the tray from J10 on the rear of
the tray to the 230 VAC source.

Input and Output Connections

The input and output connections to the transmitter are made to the jacks mounted on
the rear of the CU5 thru CU100 transmitters, the drivers for the CU250 and CU500, and
to the 250 Watt and 500 Watt amplifier trays. The CU5 thru CU100 transmitters, the
drivers for the CU250 and CU500 accept an On Channel RF signal (BRD) or a SMPTE-310
(BTD) input and output a digital RF ON Channel signal. Refer to Figure 3 and to Table 1
that follow for the locations and information on the jacks and connectors.

Technical Manual, Rev. 0 12

Innovator CU5-500BTD/BRD ATSC Transmitter/ Unpacking and Installation

J1

J11

J6

J6

J9

J8

J2

J13

Regenerative Translator

J12

J10

Figure 3: Rear View CU5 thru CU100 and the driver for the CU250 & CU500

Table 1: Connections for the CU5 thru CU100 and the driver for the CU250 & CU500

Port Type Function Impedance

J1 BNC

J2 BNC

Input A: On Channel RF Input (BRD) –78 to –8 dBm or
SMPTE-310 Input (BTD)
Input B: On Channel RF Input (BRD) –78 to –8 dBm or
SMPTE-310 Input (BTD)

50 Ohms

50 Ohms

J6 BNC 10 MHz Input: Optional External 10 MHz Reference Input 50 Ohms
J7 BNC 1 PPS Input: Optional External 1 PPS Reference Input 50 Ohms
J9 N RF Output: On Channel RF Output 50 Ohms

J10 IEC

AC Input: AC input connection to 85-264VAC Source and
On/Off circuit breaker

N/A

External Amplifier: Interface to System and external
amplifier trays, if present. Also provides two interlocks,

J11

9 Pos

Male D

one for RF System and one for Reject Load. If the
interlocks are not used, jumpers from J11-5 to J11-9,

N/A

ground, for RF system Interlock and from J11-6 to J11-9
are needed to allow the transmitter to go to operate.

J12

J13 RJ-45

J14 RJ-45

15 Pos

Female D

Remote: Remote control and status indications N/A

Serial: Provides communication to System and to external
amplifier trays, if present.
Ethernet: Optional Ethernet connection. May not be
present in your tray.

N/A

N/A

J15

Front

Panel

J16
Front
Panel

BNC

9 Pos

Female D

RF Sample: Output Sample from Output Detector Board.
In a CU50, the sample level at J15 is approximately 60dB

50 Ohms

down from the output power level of the tray.

Serial: Used to load equalizer taps into the modulator. N/A

If your CX BTD system contains an Optional ASI to S310 Converter, connect the ASI
output of the STL to the ASI in jack on the rear panel of the converter. Connect the
SMPTE-310 Output from the SMPTE 310 Out jack on the rear panel of the converter
module to the input jack J1 on the rear panel of the CU5 thru CU100 Tray and the Driver
Tray for the CU250 & CU500.

Technical Manual, Rev. 0 13

Innovator CU5-500BTD/BRD ATSC Transmitter/ Unpacking and Installation

J2

J1

J6

J4

CB1

Regenerative Translator

Figure 4: Rear View CU250 and CU500 Amplifier Tray

Table 2: Connections for the CU250 and CU500 Amplifier Tray

Port Type Function Impedance

J1 N RF Input: On Channel RF from CU driver tray 50Ω
J2 N RF Output: On Channel RF Output 50Ω

J4 25 Pos D

I/F Remote: Amplifier Control Interface

(Connects to J11 on the driver tray) N/A
J6 IEC AC Input: AC input connection to 230VAC Source N/A
J8

Front
Panel

BNC

RF Sample: Output Sample from 2 Way Combiner Board

In a CU500, the sample level is approximately 65dB down

from the output power level of the tray.

50Ω

Refer to Figures 3 and 4, and Tables 1 and 2 for detailed information on the jacks and
connectors. Connect the On Channel RF Input (BRD), –78 to –8 dBm, or the SMPTE-310
Input (BTD), to the 50Ω BNC input jack J1, located on the rear panel of the CU5 thru
CU100 transmitters and the driver trays for the CU250 and CU500.

If used, connect the external 10 MHz reference input to the 50Ω BNC 10 MHz input jack
J6 located on the rear panel of the CU5 thru CU100 transmitters and the drivers for the
CU250 and CU500. This input is only needed if precise output frequency is required. If
used, connect the external 1 PPS reference input to the 50Ω BNC 1 PPS input jack J7
located on the rear panel of the CU5 thru CU100 transmitters and the drivers for the
CU250 and CU500. This input is only needed if precise output frequency is required.

The digital RF ON Channel output of the CU5 thru CU100 transmitters and the driver
trays is at J9 the 50Ω “N” connector RF output jack located on the rear panel. In the
CU5 thru CU100 transmitter systems, the output of the tray at J9 connects to the digital
mask filter and then to the antenna for your system. In CU250 and CU500 transmitter
systems, the output of the driver tray at J9 is connected to J1 the 50 Ohm “N” connector
RF input jack located on the rear panel of the 250 Watt or 500 Watt amplifier tray.
Check that the amplifier control interface cable is connected from J11 the 9 position “D”
connector located on the rear panel of the driver tray to J4 the 25 position “D” connector
located on the rear panel of the 250 Watt or 500 Watt amplifier tray. This cable
provides the control, status and operating parameters of the amplifier tray to the driver
tray. The digital RF ON Channel output of the amplifier tray is at J2 the 50Ω “N”
connector RF output jack located on the rear panel that connects to the low pass filter,
the digital mask filter and then to the antenna for your system.

Technical Manual, Rev. 0 14

Innovator CU5-500BTD/BRD ATSC Transmitter/ Initial On Site
Regenerative Translator Turn On Procedure

Initial On Site Turn On Procedure

After the Innovator CXB Series tray or trays are installed and all input, output and AC
connections are made, the system is ready for the initial site turn on. Check that the output
of the CU5, CU30, CU50 or CU100 tray is connected to an appropriate rated load or to the
digital mask filter and the antenna for your system. If your system is a CU250 or CU500
transmitter system, check that the output of the amplifier tray is connected to an appropriate
rated load or to the low pass filter, the digital mask filter and the antenna for your system.
Check that the main AC power to the System is ON.

If you have a CU5, CU30, CU50 or CU100 system, push ON the switch located on the rear of
the tray above the AC power jack. The large fan on the rear of the tray should operate. If
your system is a CU250 or CU500 system, switch ON the ON/OFF circuit breaker located on
the rear of the amplifier tray below the AC power jack. The two fans on the rear of the
amplifier tray should operate.

The Operate/Standby LED and Status LEDs on the CU5, CU30, CU50 or CU100 should be Green
indicating the system is in Operate and performing normally. The Operate/Standby LED
showing Amber indicates the System is in Standby. The Status LED showing a blinking Red LED
indicates a Fault is occurring now. The Status LED showing Amber indicates that a Fault
occurred since that last time the Fault indications were reset.

If your system is a CU250 or CU500 system, the Enable LED and Status LEDs on the 250 or
500 Watt Amplifier Tray should be Green indicating the system is in Operate and performing
normally. The Enable LED showing Amber indicates the System is in Standby. The Status LED
should be Green indicating no faults in system. If the Operate/Standby LED shows Amber it
indicates that the System is in Standby. If the Status LED is blinking Red it indicates a Fault is
occurring now. If the Status LED shows Amber it indicates that a Fault occurred since that last
time the Fault indications were reset. The output power is factory set according to customer
request and does not need adjusted. If a problem occurs, call field support for information on
modifying the power level of the transmitter.

NOTE: The RF System Interlock and Reject Load Interlocks are provided on J11, a 9 Pos Male

D connector, located on the rear panel of the CU5, CU30, CU50 or CU100 tray. The RF
System Interlock at J11-5 provides the customer with a means of connecting the
transmitter to protection circuits, for the loads, thermal switches, combiners, or the
antenna, in the output of your system, that will place the transmitter in Standby if the
protection circuit opens. The Reject Load Interlock at J11-6 provides the customer
with a means of connecting the transmitter to protection circuits, for the reject load in
multiple amplifier systems, which will place the transmitter in Standby if the protection
circuit opens. If the interlocks are not used in your system, a plug with a jumper from
J11-5 to J11-9, ground, for RF system Interlock and from J11-6 to J11-9, for Reject
Load Interlock, need to be connected to J11, the 9 position “D” connector, located on
the rear panel of the CU5, CU30, CU50 or CU100 tray. These jumpers provide the RF
System and Reject Load Interlocks, which allow the transmitter to go to operate.
Without the jumpers, the transmitter will remain in Standby.

Technical Manual, Rev. 0 15

Innovator CU5-500BTD/BRD ATSC Transmitter/ Initial On Site
Regenerative Translator Turn On Procedure

Typical System Operating Parameters

Typical Operating Parameters for a CU5, CU30, CU50 or CU100

Parameter Typical Reading

Forward Power 100%
Reflected Power <5%
Power Supply Voltage 30 Volts
Heatsink Temperature 20º to 30º F above ambient temperature
Pin Attenuator Voltage 1 Volt to 5 Volts

Typical Operating Parameters for a CU30 used as a Driver

Parameter Typical Reading

Forward Power 20-70%
Reflected Power <3%
Power Supply Voltage 30 Volts
Heatsink Temperature 20º to 30º F above ambient temperature
Pin Attenuator Voltage 1 Volt to 5 Volts

Typical Operating Parameters for the external Amplifier Tray

in a CU250 or CU500 System

Parameter Typical Reading

Forward Power 100%
Reflected Power <5%
Power Supply Voltage 30 Volts
Heatsink Temperature 20º to 30º F above ambient temperature

Typical System Problems, Indications and Causes

Problem Indication Cause

AC power cord not connected.

Main AC to System missing.
No power to
tray

Operate/Standby and Enable LED
indicators and LCD display are Off

On/Off switch on back of tray

Off. 10 Amp fuse (F1) blown.

Switching power supply (A9)

not operating

Input Fault on Demodulator Screen
Loss of Input
Signal

in BRD systems.

MPEG Loss on Modulator Menu in

Loss of input signal from
antenna.

BTD systems

Any Fault that Mutes the
Loss of
Output
Signal

Amber Operate/Standby LED.

Blinking Red Status LED.

output. Including Input Fault,

VSWR Cutback, Overdrive,

Overtemperature and

Overvoltage.
Loss of 24V
or 32V
Loss of 12V
or 5V

Power Supply Fault on Power
Supply Menu
Operate/Standby and Enable LED
indicators and LCD display are Off

Switching power supply (A10)

not operating

Switching power supply (A9)

not operating
NOTE: A spare 10 Amp fuse is provided in the blank fuse holder under the active

fuse.

Technical Manual, Rev. 0 16

Innovator CU5-500BTD/BRD ATSC Transmitter/ Initial On Site

Operate/Standby

Status LED

Left/Right Buttons

LCD Display

Enter Button

Operate/Standby

Up/Down Buttons

J11 Serial Port

J

15 RF Sample

Regenerative Translator Turn On Procedure

If there is an occurring fault in the system, the Status LED on the front panel will flash RED as
long as the fault is present. In addition, the menu will jump to the current fault on the
display and blink this fault continuously, if the Jump to Fault screen is set to Yes. When the
fault goes away, the tray will turn the Status LED to AMBER to indicate that there was a fault
and the menu will still display the fault but it will not flash. This allows the user to know that
there was a fault and what type of fault occurred. Before clearing the fault, check if there
were multiple faults, by stepping through the menus to see if there were other faults. To
reset the indication of previous faults, the user must push the Enter button with the Fault
Reset Screen displayed. This will reset all previous Faults.

LCD Display and Front Panel LED Indicators

LED

Buttons

Figure 5: Front View CU5 thru CU100 transmitters and the driver for the CU250 & CU500

Table 3: Innovator CXB Series LCD Display

DISPLAY FUNCTION

LCD

Provides a two-line readout of the input received channel, internal

functions, status, and fault conditions.
The front panel has seven pushbuttons, two for the control of the transmitter, Operate &
Standby, and five for control of the displayed menus, Left, Right, Up, Down & Enter.

Table 4: Innovator CXB Series Control Pushbuttons

PUSHBUTTON FUNCTION

OPR When pushed switches the transmitter to Operate.

STBY When pushed switches the transmitter to Standby.

ENTER Selects the changes made in the menus and submenus.

Left & Right Arrow

Scrolls through the main menus (NOTE: Push in and hold the left

and right arrow buttons together to access the set up menus)

Up & Down Arrow Steps through submenus of the main menu when they are present.

Table 5: Innovator CXB Series Operate/Standby and Status Indicators

LED FUNCTION

OPERATE/STANDBY

(Green/Amber)

STATUS

(Green/Red/

Amber)

A Green LED indicates that the system is in Operate. An Amber
LED indicates that the system is in Standby.
A Green LED indicates that the system is functioning normally. A
flashing Red LED indicates a fault is occurring at this time. An
Amber LED indicates a fault occurred since the last time the fault
indications were reset but the system is now operating normally.

NOTE: J15 is a Front Panel BNC RF Sample Jack 50Ω that provides an RF output sample from

the output coupler board in the tray. In a CU50, the sample level at J15 is
approximately 60dB down from the output power level of the tray.

Technical Manual, Rev. 0 17