Harris DVL400, DVL800, Atlas, DVL1500, DVL2200 Technical Manual
...
Atlas Series™
T.M. No. 888-2473-001
© Copyright Harris Corporation 2002, 2003
All rights reserved
TECHNICAL MANUAL
888-2473-001
Atlas Series™
DVB-T UHF Transmitter
Rev C Feb 25, 2003
DVB-T UHF Transmitter
Returns And Exchanges
Damaged or undamaged equipment should not be returned unless written approval
and a Return Authorisation is received from HARRIS CORPORATION, Broadcast
Communications Division. Special shipping instructions and coding will be
provided to assure proper handling. Complete details regarding circumstances and
reasons for return are to be included in the request for return. Custom equipment or
special order equipment is not returnable. In those instances where return or
exchange of equipment is at the request of the customer, or convenience of the
customer, a restocking fee will be charged. All returns will be sent freight prepaid
and properly insured by the customer. When communicating with HARRIS
CORPORATION, Broadcast Communications Division, specify the HARRIS
Order Number or Invoice Number.
Unpacking
Carefully unpack the equipment and preform a visual inspection to determine that
no apparent damage was incurred during shipment. Retain the shipping materials
until it has been determined that all received equipment is not damaged. Locate and
retain all PACKING CHECK LISTs. Use the PACKING CHECK LIST to help
locate and identify any components or assemblies which are removed for shipping
and must be reinstalled. Also remove any shipping supports, straps, and packing
materials prior to initial turn on.
Technical Assistance and/or Replaceable Parts Service
Replacement parts are available from the HARRIS Service Parts Department.
Telephone 44 (0) 1223 245115 to contact the service parts department or address
correspondence to Service Parts Department, Broadcast Communications Division,
P.O. Box 41, 515 Coldhams Lane, Cambridge England. The HARRIS factory may
also be contacted through a FAX facility 44 (0) 1223 411370
NOTE:
The # symbol used in the parts list means used with (e.g. #C001 =
used with C001).
Manual Revision History
Atlas Series™
REV. DATE ECN Pages Affected
Rev 0 March 04, 2002 All
Rev A May16, 2002 Released. Added installation info for cabinet combiner
reject load flow switch, page 2-7.
Rev B Sept 12, 2002 Add two pages to front pages as stated in ECO 48448:
RTTE Compliance Statement & ATLAS Declaration.
Rev C Feb 25, 2003 14045 Add parts list as seperate Acrobat file to section 7.
Add Note to section 2.13.1 to check rotation of Pump
and Fan motors.
Add paragraph 5.9 Main Controller Battery Check.
888-2473-001
WARNING: Disconnect primary power prior to servicing.
MRH-1
888-2473-001
WARNING: Disconnect primary power prior to servicing.
MRH-2
Guide to Using Harris Parts List Information
The Harris Replaceable Parts List Index portrays a tree structure with the major items being leftmost in the index. The
example below shows the Transmitter as the highest item in the tree structure. If you were to look at the bill of
materials table for the Transmitter you would find the Control Cabinet, the PA Cabinet, and the Output Cabinet. In the
Replaceable Parts List Index the Control Cabinet, PA Cabinet, and Output Cabinet show up one indentation level
below the Transmitter and implies that they are used in the Transmitter. The Controller Board is indented one level
below the Control Cabinet so it will show up in the bill of material for the Control Cabinet. The tree structure of this
same index is shown to the right of the table and shows indentation level versus tree structure level.
Example of Replaceable Parts List Index and equivalent tree structure:
Replaceable Parts List Index Part Number Page
Table 7-1. Transmitter 994 9283 001 7-2
Table 7-2. Control Cabinet 992 9244 002 7-3
Table 7-3. Controller Board 992 8344 002 7-6
Table 7-4. PA Cabinet 992 9400 002 7-7
Table 7-5. PA Amplifier 994 7894 002 7-9
Table 7-6. PA Amplifier Board 992 7904 002 7-10
Table 7-7. Output Cabinet 992 9450 001 7-12
The part number of the item is shown to the right of the description as is the page in the manual where the bill for that
part number starts. Inside the actual tables, four main headings are used:
• Table #-#. ITEM NAME - HARRIS PART NUMBER - this line gives the information that corresponds to the
• Replaceable Parts List Index entry;
• HARRIS P/N column gives the ten digit Harris part number (usually in ascending order);
• DESCRIPTION column gives a 25 character or less description of the part number;
• REF. SYMBOLS/EXPLANATIONS column 1) gives the reference designators for the item (i.e., C001, R102, etc.)
that corresponds to the number found in the schematics (C001 in a bill of material is equivalent to C1 on the schematic) or 2) gives added information or further explanation (i.e., “Used for 208V operation only,” or “Used for HT
10LS only,” etc.).
Inside the individual tables some standard conventions are used:
• A # symbol in front of a component such as #C001 under the REF. SYMBOLS/EXPLANATIONS column means
that this item is used on or with C001 and is not the actual part number for C001.
• In the ten digit part numbers, if the last three numbers are 000, the item is a part that Harris has purchased and has
not manufactured or modified. If the last three numbers are other than 000, the item is either manufactured by Harris
or is purchased from a vendor and modified for use in the Harris product.
• The first three digits of the ten digit part number tell which family the part number belongs to - for example, all elec-
trolytic (can) capacitors will be in the same family (524 xxxx 000). If an electrolytic (can) capacitor is found to have
a 9xx xxxx xxx part number (a number outside of the normal family of numbers), it has probably been modified in
some manner at the Harris factory and will therefore show up farther down into the individual parts list (because
each table is normally sorted in ascending order). Most Harris made or modified assemblies will have 9xx xxxx xxx
numbers associated with them.
The term “SEE HIGHER LEVEL BILL” in the description column implies that the reference designated part number
will show up in a bill that is higher in the tree structure. This is often the case for components that may be frequency
determinant or voltage determinant and are called out in a higher level bill structure that is more customer dependent
than the bill at a lower level.
Transmitter
994 9283 001
Control Cabinet
992 9244 002
Controller Board
992 8344 002
PA Cabinet
992 9400 002
PA Amplifier
992 7894 002
PA Amplifier Board
992 7904 002
Output Cabinet
992 9450 001
!
WARNING:
THE CURRENTS AND VOLTAGES IN THIS EQUIPMENT ARE DANGEROUS.
PERSONNEL MUST AT ALL TIMES OBSERVE SAFETY WARNINGS, INSTRUCTIONS AND REGULATIONS.
This manual is intended as a general guide for trained and qualified personnel who
are aware of the dangers inherent in handling potentially hazardous electrical/
electronic circuits. It is not intended to contain a complete statement of all safety
precautions which should be observed by personnel in using this or other electronic
equipment.
The installation, operation, maintenance and service of this equipment involves
risks both to personnel and equipment, and must be performed only by qualified
personnel exercising due care. HARRIS CORPORATION shall not be responsible
for injury or damage resulting from improper procedures or from the use of
improperly trained or inexperienced personnel performing such tasks. During
installation and operation of this equipment, National and local building codes and
fire protection standards must be observed.
!
WARNING:
ALWAYS DISCONNECT POWER BEFORE OPENING COVERS, DOORS, ENCLOSURES, GATES, PANELS OR SHIELDS. ALWAYS USE GROUNDING STICKS
AND SHORT OUT HIGH VOLTAGE POINTS BEFORE SERVICING. NEVER MAKE
INTERNAL ADJUSTMENTS, PERFORM MAINTENANCE OR SERVICE WHEN
ALONE OR WHEN FATIGUED.
Do not remove, short-circuit or tamper with interlock switches on access covers,
doors, enclosures, gates, panels or shields. Keep away from live circuits, know your
equipment and don’t take chances.
!
WARNING:
IN CASE OF EMERGENCY ENSURE THAT POWER HAS BEEN DISCONNECTED.
!
WARNING:
IF OIL FILLED OR ELECTROLYTIC CAPACITORS ARE UTILISED IN YOUR
EQUIPMENT, AND IF A LEAK OR BULGE IS APPARENT ON THE CAPACITOR
CASE WHEN THE UNIT IS OPENED FOR SERVICE OR MAINTENANCE, ALLOW
THE UNIT TO COOL DOWN BEFORE ATTEMPTING TO REMOVE THE DEFECTIVE CAPACITOR. DO NOT ATTEMPT TO SERVICE A DEFECTIVE CAPACITOR
WHILE IT IS HOT DUE TO THE POSSIBILITY OF A CASE RUPTURE AND SUBSEQUENT INJURY.
English Hereby, HARRIS Broadcast Communications declares that this
ATLAS SERIES DVB-T Transmitter is in compliance with the
essential requirements and other relevant provisions of Directive
1999/5/EC.
Finnish HARRIS Broadcast Communications vakuuttaa täten että ATLAS
SERIES DVB-T Transmitter tyyppinen laite on direktiivin 1999/5/EY
oleellisten vaatimusten ja sitä koskevien direktiivin muiden ehtojen
mukainen.
Dutch Hierbij verklaart HARRIS Broadcast Communications dat het toestel
ATLAS SERIES DVB-T Transmitter in overeenstemming is met de
essentiële eisen en de andere relevante bepalingen van richtlijn
1999/5/EG
Bij deze verklaart HARRIS Broadcast Communications dat deze
ATLAS SERIES DVB-T Transmitter voldoet aan de essentiële eisen
en aan de overige relevante bepalingen van Richtlijn 1999/5/EC.
French Par la présente HARRIS Broadcast Communications déclare que
l'appareil ATLAS SERIES DVB-T Transmitter est conforme aux
exigences essentielles et aux autres dispositions pertinentes de la
directive 1999/5/CE
Par la présente, HARRIS Broadcast Communications déclare que ce
ATLAS SERIES DVB-T Transmitter est conforme aux exigences
essentielles et aux autres dispositions de la directive 1999/5/CE qui
lui sont applicables
Swedish Härmed intygar HARRIS Broadcast Communications att denna
ATLAS SERIES DVB-T Transmitter står I överensstämmelse med
de väsentliga egenskapskrav och övriga relevanta bestämmelser
som framgår av direktiv 1999/5/EG.
Danish Undertegnede HARRIS Broadcast Communications erklærer herved,
at følgende udstyr ATLAS SERIES DVB-T Transmitter overholder
de væsentlige krav og øvrige relevante krav i direktiv 1999/5/EF
German Hiermit erklärt HARRIS Broadcast Communications, dass sich dieser/
diese/dieses ATLAS SERIES DVB-T Transmitter in
Übereinstimmung mit den grundlegenden Anforderungen und den
anderen relevanten Vorschriften der Richtlinie 1999/5/EG befindet".
(BMWi)
Hiermit erklärt HARRIS Broadcast Communications die
Übereinstimmung des Gerätes ATLAS SERIES DVB-T Transmitter
mit den grundlegenden Anforderungen und den anderen relevanten
Festlegungen der Richtlinie 1999/5/EG. (Wien)
Greek
ΜΕ ΤΗΝ ΠΑΡΟΥ_ HARRIS Broadcast Communications ∆ΗΛ_ΝΕΙ
ΟΤΙ ATLAS SERIES DVB-T Transmitter _ΥΜΜΟΡ__ΝΕΤΑΙ ΠΡΟ ΤΙ
ΟΥ_Ι_∆ΕΙ ΑΠΑΙΤΗ_ΕΙ ΚΑΙ ΤΙ ΛΟΙΠΕ _ΧΕΤΙΚΕ ∆ΙΑΤΑΞΕΙ ΤΗ
Ο∆Η_ΙΑ 1999/5/ΕΚ
Italian Con la presente HARRIS Broadcast Communications dichiara che
questo ATLAS SERIES DVB-T Transmitter è conforme ai requisiti
essenziali ed alle altre disposizioni pertinenti stabilite dalla direttiva
1999/5/CE.
Spanish Por medio de la presente HARRIS Broadcast Communications
declara que el ATLAS SERIES DVB-T Transmitter cumple con los
requisitos esenciales y cualesquiera otras disposiciones aplicables o
exigibles de la Directiva 1999/5/CE
PortugueseHARRIS Broadcast Communications declara que este ATLAS
SERIES DVB-T Transmitter está conforme com os requisitos
essenciais e outras disposições da Directiva 1999/5/CE.
Table of Contents
Section 1
Introduction
Purpose of This Manual . . . . . . . . . . . . . . . . . . . 1-1
General Description. . . . . . . . . . . . . . . . . . . . . . . 1-2
Atlas Series™ Transmitter Models . . . . . . . . . 1-3
System Block Diagrams . . . . . . . . . . . . . . . . . . 1-4
Transmitter Control System . . . . . . . . . . . . . . . 1-6
Graphical User Interface . . . . . . . . . . . . . . . . 1-6
Control System Communications . . . . . . . . . 1-7
In-System Programming or ISP. . . . . . . . . . . 1-7
Remote Control . . . . . . . . . . . . . . . . . . . . . . . 1-7
PA Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Module Control . . . . . . . . . . . . . . . . . . . . . . . 1-9
Power Supplies. . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Cooling System. . . . . . . . . . . . . . . . . . . . . . . . 1-10
Cooling System Control Panel. . . . . . . . . . . 1-10
Pump Module. . . . . . . . . . . . . . . . . . . . . . . . 1-11
Heat Exchanger . . . . . . . . . . . . . . . . . . . . . . 1-12
Transmitter Cold Plates . . . . . . . . . . . . . . . . 1-12
V-XCAST™ Exciter . . . . . . . . . . . . . . . . . . . 1-13
General Specifications. . . . . . . . . . . . . . . . . . . . 1-14
Section 2
Installation / Initial Turn-On
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Installation Drawings . . . . . . . . . . . . . . . . . . . . 2-2
Installation Checkboxes . . . . . . . . . . . . . . . . . . . 2-3
Transmitter Cabinet Placement. . . . . . . . . . . . . . 2-3
Cooling System Installation . . . . . . . . . . . . . . . . 2-4
Transmitter AC Connection . . . . . . . . . . . . . . . . 2-7
Second PA Cabinet Interconnections . . . . . . . . 2-10
Signal and Ground Connections . . . . . . . . . . . . 2-11
External Interlock Connections. . . . . . . . . . . . . 2-11
Cabinet Combiner Connections
(DVL 4300 and 5700 only) . . . . . . . . . . . . . . . 2-12
RF Sample Connections . . . . . . . . . . . . . . . . . 2-12
3 Port U-Link Panel Connections . . . . . . . . . . . 2-13
Install PA and PS Modules . . . . . . . . . . . . . . . . 2-14
Initial Turn-On . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
Cooling System Turn ON. . . . . . . . . . . . . . . . 2-17
Setting the Transmitter Flow Rate. . . . . . . . 2-18
Setting the Test Load Flow Switch Trip
Level. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
Setting the Heat Exchanger Fan Turn ON
Temperatures . . . . . . . . . . . . . . . . . . . . . . . 2-19
Verifying Pump Switching . . . . . . . . . . . . . 2-19
Local Pump Operation. . . . . . . . . . . . . . . . . 2-20
Setting Exciter Parameters . . . . . . . . . . . . . . . 2-20
RF Initial Turn ON . . . . . . . . . . . . . . . . . . . . .2-22
Cabinet Phasing. . . . . . . . . . . . . . . . . . . . . . . .2-23
Parallel Remote Control Connections . . . . . . . .2-24
Transmitter Control Functions, J13 and J14 . .2-25
Remote Status Outputs, J15 & J16. . . . . . . . . . .2-26
Remote Power Metering, J17 . . . . . . . . . . . . . 2-27
Section 3
Operation
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Transmitter Control Panel . . . . . . . . . . . . . . . . . .3-1
Main Menu "Quick" Buttons. . . . . . . . . . . . . . .3-2
Graphical User Interface (GUI) . . . . . . . . . . . . . . 3-2
Global Status and Navigation . . . . . . . . . . . . . .3-3
GUI Home Page. . . . . . . . . . . . . . . . . . . . . . . . . .3-4
Drive Chain Main Menu . . . . . . . . . . . . . . . . . . .3-6
Drive Chain Faults . . . . . . . . . . . . . . . . . . . . . . .3-7
Drive Meters . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8
Drive Service. . . . . . . . . . . . . . . . . . . . . . . . . . .3-8
Exciter Setup. . . . . . . . . . . . . . . . . . . . . . . . . .3-9
DCU Setup . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12
Power Amp Main Menu . . . . . . . . . . . . . . . . . . .3-13
PA Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-14
PA Meters . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-15
PA Service. . . . . . . . . . . . . . . . . . . . . . . . . . . .3-16
PA Module Removal. . . . . . . . . . . . . . . . . . .3-16
PA Module Alignment . . . . . . . . . . . . . . . . .3-17
Output Main Menu. . . . . . . . . . . . . . . . . . . . . . .3-18
Output Faults . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
Output Meters . . . . . . . . . . . . . . . . . . . . . . . . .3-20
Output Service. . . . . . . . . . . . . . . . . . . . . . . . .3-20
PA Reject Service. . . . . . . . . . . . . . . . . . . . .3-21
Output Setup . . . . . . . . . . . . . . . . . . . . . . . . .3-22
Power Supply Main Menu . . . . . . . . . . . . . . . . .3-23
PS Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-24
PS Meters. . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-24
PS Service . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-25
System Main Menu . . . . . . . . . . . . . . . . . . . . . .3-26
System Control . . . . . . . . . . . . . . . . . . . . . . . .3-27
System Cooling . . . . . . . . . . . . . . . . . . . . . . . . 3-28
Cooling System Control Panel . . . . . . . . . . .3-28
Cooling Faults. . . . . . . . . . . . . . . . . . . . . . . . 3-29
Cooling Meters . . . . . . . . . . . . . . . . . . . . . . .3-29
Cooling Service. . . . . . . . . . . . . . . . . . . . . . . 3-30
System Log . . . . . . . . . . . . . . . . . . . . . . . . . . .3-31
System Service . . . . . . . . . . . . . . . . . . . . . . . . 3-32
System Setup. . . . . . . . . . . . . . . . . . . . . . . . .3-33
Software Revisions (SW REVs). . . . . . . . . .3-36
GUI Menu Structures. . . . . . . . . . . . . . . . . . . . .3-37
Table of Contents (continued)
Section 4
Theory of Operation
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Active Logic Symbols . . . . . . . . . . . . . . . . . . . 4-2
Block Diagram Descriptions. . . . . . . . . . . . . . . . 4-2
Transmitter Control System . . . . . . . . . . . . . . . . 4-3
Micro Module. . . . . . . . . . . . . . . . . . . . . . . . . . 4-4
CPLD, Complex Programmable Logic Device 4-5
I/O Expansion . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Life Support Backup . . . . . . . . . . . . . . . . . . . 4-5
Controller Area Network (CAN) Bus. . . . . . . . 4-6
System Control Bus . . . . . . . . . . . . . . . . . . . . . 4-7
CAN Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
Parallel Control Lines . . . . . . . . . . . . . . . . . . 4-7
Main Controller . . . . . . . . . . . . . . . . . . . . . . . . 4-9
Transmitter Control . . . . . . . . . . . . . . . . . . . . 4-9
RS-232 Serial Connections . . . . . . . . . . . . . 4-10
Life Support Mode, Main Controller. . . . . . 4-10
Manual RF MUTE. . . . . . . . . . . . . . . . . . . . 4-11
External I/O Board . . . . . . . . . . . . . . . . . . . . . 4-11
External Interlocks. . . . . . . . . . . . . . . . . . . . 4-13
RF Mute Interlock . . . . . . . . . . . . . . . . . . . . 4-14
Transmitter RF System . . . . . . . . . . . . . . . . . . . 4-15
V-XCAST Exciter(s) . . . . . . . . . . . . . . . . . . . 4-15
Drive Control Unit (DCU) . . . . . . . . . . . . . . . 4-15
Backplane Interface Board. . . . . . . . . . . . . . . 4-16
RF Splitter . . . . . . . . . . . . . . . . . . . . . . . . . . 4-16
Control Distribution. . . . . . . . . . . . . . . . . . . 4-16
Low Voltage Power Supply Distribution. . . 4-17
PA Module . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-17
Phase and Gain Board . . . . . . . . . . . . . . . . . 4-18
Automatic Level Control (ALC) . . . . . . . . . 4-19
RF Pallets. . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20
Auto Bias Circuit . . . . . . . . . . . . . . . . . . . . . 4-20
Pallet Splitters and Combiner . . . . . . . . . . . 4-21
DC Distribution Board . . . . . . . . . . . . . . . . . 4-21
Module Controller . . . . . . . . . . . . . . . . . . . . 4-21
PA Module Combiner . . . . . . . . . . . . . . . . . . . 4-22
Combiner Isolation Loads . . . . . . . . . . . . . . 4-25
RF Monitor Board . . . . . . . . . . . . . . . . . . . . . 4-26
RF Detectors . . . . . . . . . . . . . . . . . . . . . . . . 4-27
Reject Load RF Detector (Relative) . . . . . . 4-28
Precision RF Power Detectors . . . . . . . . . . . 4-30
Normal Mode / Life Support Mode . . . . . . . 4-30
Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
AC Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31
PA Power Supply Modules. . . . . . . . . . . . . . . 4-31
Low Voltage Power Supplies (LVPS) . . . . . . 4-32
Power Supply Monitor Board . . . . . . . . . . . . .4-32
S1, PS Monitor Board Config Switches . . . .4-33
LVPS Interface and Cabinet ID . . . . . . . . . .4-34
PA Power Supply Monitoring and Control. .4-34
AC Line Monitoring . . . . . . . . . . . . . . . . . . .4-35
Cabinet Cooling System Sensors . . . . . . . . . 4-35
Cooling System . . . . . . . . . . . . . . . . . . . . . . . . .4-39
Pump Module . . . . . . . . . . . . . . . . . . . . . . . . .4-39
Heat Exchanger . . . . . . . . . . . . . . . . . . . . . . . .4-40
Transmitter Cold Plates. . . . . . . . . . . . . . . . . .4-40
Pump Control Panel. . . . . . . . . . . . . . . . . . . . .4-40
Transmitter Interconnect. . . . . . . . . . . . . . . .4-41
Front Panel Controls. . . . . . . . . . . . . . . . . . .4-41
Control Voltage Power Supply. . . . . . . . . . .4-42
Control Description. . . . . . . . . . . . . . . . . . . .4-42
Section 5
Maintenance and Alignments
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
PA Module Removal and Replacement. . . . . . . .5-1
PA Module Removal. . . . . . . . . . . . . . . . . . . . . 5-2
Installing a PA Module . . . . . . . . . . . . . . . . . . .5-3
PA Module Auto Bias Procedure. . . . . . . . . . . . .5-4
PA Module Phasing . . . . . . . . . . . . . . . . . . . . . . .5-5
Phase Control Voltage. . . . . . . . . . . . . . . . . . . .5-5
Module Phasing Procedure . . . . . . . . . . . . . . . .5-6
Power Calibrations. . . . . . . . . . . . . . . . . . . . . . . . 5-7
Forward Power Calibration . . . . . . . . . . . . . . . .5-8
Reflected Power Calibration . . . . . . . . . . . . . . .5-8
DCU Calibration . . . . . . . . . . . . . . . . . . . . . . . .5-9
LCD Contrast Adjustment . . . . . . . . . . . . . . . . .5-10
Touch Screen Calibration. . . . . . . . . . . . . . . . . .5-11
V-XCAST Exciter adjustments . . . . . . . . . . . . .5-12
Main Controller Battery Check . . . . . . . . . . . . .5-12
Section 6
Diagnostics
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
GUI System Log . . . . . . . . . . . . . . . . . . . . . . . . .6-2
Fault Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3
Parts List
Parts List Index . . . . . . . . . . . . . . . . . . . . . . . . . .7-1
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ATLAS Series™
Section 1
Introduction
1
1.1 Purpose of This Manual
This technical manual contains the information pertaining to the Atlas™ Series
UHF solid-state DTV transmitter. The various sections of this technical manual
provide the following types of information.
• Section 1, Introduction, provides general manual layout, frontispiece, equipment
description, block diagram and general specifications.
• Section 2, Installation/Initial Turn-On, provides physical and electrical installa-
tion procedures for the transmitter, cooling and RF systems and basic remote
control connections.
• Section 3, Operation, provides operation and navigation information for the
Graphical User Interface or GUI as well as identification and functions of all
external panel controls and indicators.
• Section 4, Theory of Operation, provides detailed theory of operation for the
transmitter and sub-assemblies.
• Section 5, Maintenance and Alignments, provides preventative and corrective
maintenance information and all field alignment procedures.
• Section 6, Diagnostics, provides detailed fault information and diagnostic proce-
dures to the board level.
• Section 7, Parts List, provides a parts list for the overall transmitter as well as
individual modules.
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Section 1 Introduction ATLAS Series™
1.2 General Description
This section contains a general description of the Atlas Series™ series television
transmitters. Included in this section will be descriptions of the Control System,
Power Amplifier, block diagrams of the different models and system specifications.
The Atlas Series™ DTV transmitter consists of one or two cabinets depending on
power level. See Table 1-1 for a listing of the available models and power levels.
Figure 1-1 shows the 2 possible cabinet configurations. The cabinet on the left is for
power levels up to 3kW, with the dual cabinet configuration on the right allowing
for 4.3kW and 5.7kW versions.
Figure 1-1 Transmitter Front View
All Models up to 3kW
DVL 4300 and DVL 5700
(4.3kW and 5.7kW Models)
DVL 400 - DVL 3000
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Section 1 Introduction
ATLAS Series™
1.2.1 Atlas Series™ Transmitter Models
The Atlas Series™ UHF transmitter is available in 8 liquid cooled power levels, not
including dual transmitter configurations. The available models are listed below in
Table 1-1.
Table 1-1 Atlas Series™ Transmitter Models
Tx Models Cabinets PA Modules Output Power Primary Cooling
DVL 400 1 1 400W LIQUID
DVL 800 1 2 800W LIQUID
DVL 1100 1 3 1.1kW LIQUID
DVL 1500 1 4 1.5kW LIQUID
DVL 2200 1 6 2.2kW LIQUID
DVL 3000 1 8 3.0kW LIQUID
DVL 4300 2 12 (6 per cabinet) 4.3kW LIQUID
DVL 5700 2 16 (8 per cabinet) 5.7kW LIQUID
NOTE: All power levels given in Average power.
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Section 1 Introduction ATLAS Series™
1.2.2 System Block Diagrams
The following figures contain System block diagrams showing the basic signal flow
and configuration for each Atlas Series™ Transmitter Model. Figure 1-2 shows the
Medium Power single cabinet system with up to 8 PA modules. Note that a driver is
not needed, as the exciter power is sufficient to drive up to 8 PA modules. Figure 13 shows the High Power configuration which is simply the addition of a second
cabinet and a cabinet combiner for outputs of 4.3Kw and 5.7kW.
Figure 1-2 Atlas Series™ Medium Power System Block Diagram
400W up to 3kW (DVL 3000 shown)
Exciter AExciter B
Drive
Control
Unit
RF Monitor
DVB
Filter
Reject
Loads
PA 1
PA 2
PA 3
PA 4
PA 5
PA 6
PA 7
PA 8
PS 1
32V
PS 2
32V
PS 3
32V
PS 4
32V
Ext
I/O
Board
Main
Controller
&
Life Support
MOV
Board
LVPS
LVPS
AC Power
380/400/415
VAC 3-Phase
or
220/240
Single Phase
To PA Modules
Bus to 2nd PA
TCP/IP
RS-232
Parallel
Ext Interlocks
Pump Control
ASI-1
ASI-2
10MHz
GPS
1 PPS
ASI-1
ASI-2
10MHz
GPS
1 PPS
1-5/8” Line
Model: DVL 3000
3.4kW 3.0kW
460W
460W
460W
460W
460W
460W
460W
460W
Power Supply Monitor
PS Control and Monitoring
Graphical
User
Interface
RF Samples
Note: This represents Cabinet #1
for the DVL 4300 and 5700
RF Splitter
RF Combiner
PA Cabinet FWD and RFLD
Total System FWD and RFLD
These Components are outside
the Transmitter Cabinet
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Section 1 Introduction
ATLAS Series™
Figure 1-3 Atlas Series™ High Power System Block Diagram
DVL 4300 or DVL 5700 (shown)
RF Monitor
Cabinet
Combiner
Reject
Loads
PS 1
32V
PS 2
32V
PS 3
32V
PS 4
32V
MOV
Board
LVPS
LVPS
AC Power
380/400/415
VAC 3-Phase
5.7kW
RF Samples
Power Supply Monitor
Model: DVL 5700
Cabinet #2
RF Drive from
Cabinet #1
RF Output from
Cabinet #1
3.4kW
DVB
Filter
Control PS Bus from
Cabinet #1
Note: For DVL 4300
Omit PAs 7 & 8 and PS #4
To PA Modules
and RF Monitor
These
Components are
outside the
transmitter cabinet
PA Cabinet FWD and RFLD
Total System FWD and RFLD
PA 1
PA 2
PA 3
PA 4
PA 5
PA 6
PA 7
PA 8
460W
460W
460W
460W
460W
460W
460W
460W
RF Splitter
RF Combiner
Reject
Load
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Section 1 Introduction ATLAS Series™
1.2.3 Transmitter Control System
The transmitter uses a distributed architecture control system. This means that each
transmitter sub-system is responsible for its own monitoring and protection and
simply reports back to the Main Controller for display on the GUI (Graphical User
Interface) or to a remote interface. The heart of the system is the 376 Micro Module
which is used in all of the transmitter systems for control, monitoring and
protection. The Micro Module is used on each of the following controllers and subsystems:
a. Main Controller Board - This board is responsible for transmitter control and
monitoring. However, with the distributed control architecture, it is not
directly responsible for protection of the individual transmitter components. It
merely gathers all status and fault data from the individual sub-systems and
reports that information to the operator. The Main Controller is responsible
for system level control (issues which effect multiple systems) since it is the
only part of the control system which can monitor the entire transmitter.
b. Module Controllers (1 in each module) - Responsible for protection and con-
trol of the PA Module. Report directly to the Main Controller Board.
c. RF Monitor Board - Responsible for cabinet VSWR protection and monitor-
ing of combiner reject loads. Reports directly to the Main Controller.
d. Power Supply Monitor Board - Responsible for control and monitoring of the
PA power supplies and distribution of the low voltage. Also responsible for
monitoring the cooling system including temperature, flow and leaks. Reports
directly to the Main Controller.
e. External I/O Board - Provides all customer interface connections including
parallel remote control and serial remote control. Reports directly to the Main
Controller.
1.2.3.1 Graphical User Interface
The front panel user interface is a 1/4 VGA, LCD touchscreen display. The
touchscreen display uses software buttons to monitor the transmitter. Hardware
buttons for the primary transmitter functions such as ON, OFF, RAISE and
LOWER are provided on the overlay panel next to the display.
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Section 1 Introduction
ATLAS Series™
1.2.3.2 Control System Communications
The control system uses a serial communications system called a CAN bus. CAN
stands for Controller Area Network. The CAN bus is a closed loop serial network
operated by the Main Controller Board. Each circuit board and module connected to
the CAN bus is considered a node and therefore has a specific address. This allows
the Main Controller to gather information from all parts of the transmitter and
display it on the GUI. One big advantage of the CAN bus is that it requires only 2
wires of the system control ribbon cable, eliminating a large amount of discrete
wiring which would otherwise be required.
For redundancy, the CAN bus is backed up by parallel, hardwired, control lines that
allow the transmitter to stay on the air even if the CAN bus fails. The parallel
control lines also provide the instantaneous OFF and RF MUTE commands
necessary for transmitter protection.
1.2.3.3 In-System Programming or ISP
The use of the CAN bus for communication between the various Micro Modules in
the transmitter also allows for easy updating of the software used in each transmitter
sub-system via a serial port connection to an external computer. This is referred to
as In-System Programming or ISP.
The real benefit of In-System Programming is that it allows any or all of the
transmitter software to be updated without removing or replacing any firmware ICs.
The Harris ISP program is provided on the CD-ROM accompanying this manual
along with all of the transmitter software as it shipped from the factory. The Harris
ISP program is easy to use and it only takes a few minutes to load or update
software.
NOTE:
Software does not need to be loaded into the transmitter unless new components are installed or an update is sent from Harris. The transmitter, as
shipped from the factory, is preloaded and ready to run.
1.2.3.4 Remote Control
The Atlas Series™ transmitter has the basic Discrete wired parallel remote control
with the standard connections for control, status and analogue monitoring. A
network interface will be available by mid year 2002, but this will be an optional
add-on deivce.
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Section 1 Introduction ATLAS Series™
1.2.4 PA Module
The Atlas Series™ PA Module utilises LDMOS amplifiers to produce up to 460W
average power output. Each module weighs approximately 20.5kg and can be unplugged while the transmitter is running. A single cabinet Atlas Series™ transmitter
can have 1, 2, 3, 4, 6 or 8 PA modules to achieve the various power levels shown in
Table 1-1. The 2 cabinet version will have either 6 or 8 modules per cabinet. A
block diagram of the PA module is shown in Figure 1-4.
Each PA module consists of the following components:
a. PA Module Controller Board - Responsible for all monitoring and protection
of the module. Reports to the transmitter Main Controller via the CAN bus
but is also connected to the parallel control lines in case the CAN bus is not
operational.
b. Phase and Gain Board - Provides for module phase and gain adjustments to
minimise module combiner reject power. Also provides for cabinet phasing
for the 2 cabinet transmitters to minimise cabinet combiner reject power.
c. DC Distribution Board - Provides FET switching of the +32Vdc and sensing
of driver and pallet currents.
d. Pre-driver Pallet - Provides enough power to drive the 2 way splitter and the 2
driver pallets.
e. Two (2) LDMOS Driver Pallets - Provide enough power to drive the 4 way
splitters and the inputs to the power amplifier pallets.
f. Pallet Splitter and Combiner - Actually two 4-way splitters and one 8-way
combiner.
g. Eight (8) LDMOS Amplifier Pallets - When combined, they provide up to
460 watts of average power at the output of the module.
h. Liquid Cooled Cold Plate - Mounted directly to the 8 LDMOS power ampli-
fier pallets for cooling.
i. RF Output Directional Coupler - Samples both Forward and Reflected power
for metering, module ALC and module VSWR protection.
Each Atlas Series™ PA Module is a self-contained 460W transmitter (except for the
power supply) with its own internal control, monitoring and protection. The
modules only receive basic On/Off, Mute, Restart, Phase and Gain commands from
the transmitter control system. This means that each module will protect itself
without relying on the system controller.
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Section 1 Introduction
ATLAS Series™
1.2.4.1 Module Control
The primary method for control and monitoring of the PA Modules is by the serial
CAN (Controller Area Network) Bus. It is used for control, status and monitoring of
all PA Module parameters and for the reporting of Module faults. As a backup to
this serial control network, each PA Module has dedicated hardware control lines
for functions such as On, Off, Restart and RF Mute.
Figure 1-4 PA Module Block Diagram
1.2.5 Power Supplies
Up to four +32 Vdc power supplies are used to provide the DC voltage to the PA
modules within each PA cabinet. Each power supply provides power to two PA
modules. Module power supplies are designed to allow removal and insertion of one
unit while the remaining power supplies are operating. The control system in the PA
Cabinet is powered by a single low voltage power. A second (redundant) low
voltage power supply is optional.
AB
PHASE
&
GAIN
CONTROL
BOARD
SS RELAY
AB
AB
AB
AB
AB
AB
A
FWD
TEMP
Pin
+32V
BIAS
RF IN
TO MAIN CONTROLLER
SWITCHED
+32V
ON/OFF
MODULE ENABLE/DISABLE
32V
MON
RF
OUT
AB
AB
AB
Auto Biasing
Pre-driver
Driver A
Driver B
8
CURRENT
SENSING
Pallets
Pallet Combiner
SplitterSplitter
BIAS
BIAS
3
12
RFL
CAN Bus
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Section 1 Introduction ATLAS Series™
1.2.6 Cooling System
The Atlas Series™ transmitter uses a 50/50 glycol liquid cooling system to remove
the majority of the heat away from the transmitter but also has cabinet flushing fans
to remove residual cabinet heat. A simplified block diagram of the liquid cooling
system is shown in Figure 1-6. A simplified diagram of the liquid cooling system
inside the transmitter cabinet is shown in Figure 1-7. The cooling system basically
consists of:
a. Cooling System Control Panel
b. Pump Module
c. Heat Exchanger
d. Transmitter Cold Plates
1.2.6.1 Cooling System Control Panel
The cooling system control panel controls the pump module and the heat exchanger
and is the interface to the transmitter control system. It uses very basic relay logic
for reliable operation. The cooling system control panel is connected to the External
I/O board in the Atlas Transmitter for monitoring and control. It also supplies ac
power to the pump module and the heat exchanger and interfaces the fault and status
information from these units to the transmitter.
The cooling system control panel, shown in Figure 1-5 below, has local controls on
the front which allow manual selection of pump A or optional pump B and selection
of Remote/Local control. It also has the following status indicators:
• Remote
• Local
• Interlock
• Fan A ON
• Fan B ON
• *Pump A ON
• *Pump B ON
• Pump A Preset
• Pump B Preset
• *Coolant Fault
• *Coolant Low
• Power
Figure 1-5 Cooling System Control Panel
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Section 1 Introduction
ATLAS Series™
* Each of these status indications is also sent to the transmitter for display on the
GUI and via remote control.
When in Remote mode, the transmitter is responsible for control of the cooling
system, including ON/OFF, manual pump selection and automatic pump switching
in the case of a failure. Placing the control panel in Local mode allows manual
switching of the pumps using the pump select buttons on the cooling control panel.
The lower half of the control panel contains the ac isolation switch which
disconnects ac power from the pump module and heat exchanger as well as the
control circuitry in the control panel itself.
1.2.6.2 Pump Module
The pump module is a self-contained unit with a storage tank, pressure and
temperature gauges, a strainer filter and one pump or the optional dual pumps
operating in main/standby mode. The pump module is an open frame unit and is
meant to be installed inside the building (with a special option for outside
mounting). The control panel is separate from the pump module and should be
mounted near the transmitter (usually next to the transmitter disconnect panel).
Figure 1-6 Simplified Liquid Cooling System Block Diagram
Medium Power (up to DVL 3000)
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Section 1 Introduction ATLAS Series™
1.2.6.3 Heat Exchanger
The heat exchanger, which is usually installed outside, has 2 fans. The fans are
enabled whenever the pump module is activated, but temperature sensors determine
when the fans will actually start. The first one turns on when the coolant
temperature reaches 32oC with the second one turning on at 38oC.
1.2.6.4 Transmitter Cold Plates
Each PA Module has an attached liquid cooled cold plate which connects to the
cooling system with flexible hoses and quick release connectors. There is also a
separate cold plate mounted inside the transmitter cabinet to which all of the
combiner reject loads are attached. See Figure 1-7.
Figure 1-7 Internal Transmitter Liquid Cooling System
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Section 1 Introduction
ATLAS Series™
1.2.7 V-XCAST™ Exciter
The ITIS V-XCAST™ COFDM (Coded Orthogonal Frequency Division Multiplex)
exciter is used with the Atlas Series™ transmitter. This exciter is described in a
separate instruction book. A second hot standby exciter/driver and drive chain
switcher is available as an option. The exciter is controlled and configured using an
RS-232 serial connection. Software is provided with the exciter. A serial diagnostic
and monitoring port is also provided.
The COFDM exciter V-XCAST is a fully compliant DVB-T (Digital Video
Broadcast - Terrestrial) exciter and up-converter supporting both 2K and 8K
operations, specifically designed for commercial networks. This device performs
channel coding and OFDM modulation of a MPEG2 transport stream. One single
unit drives the Atlas Series™ transmitter with a fully modulated RF DVB-T
channel. The excellent quality and stability of analogue UHF signal output
maximises the TV transmitter efficiency, decreasing global cost. Thanks to its ASI
(Asynchronous Serial Interface) standardised interface, the V-XCAST exciter can
be used with any DVB compliant source equipment.
A flexible Bit Rate Adaptation mechanism, with PCR (Program Clock Reference)
restamping, is provided, giving an independence between the multiplexer rate and
the DVB-T rate.
Test generators are included, which allow easier BER (Bit Error Rate) measurement
with the optional V-TER, professional test receiver.
The V-XCAST COFDM exciter accepts a SFN (Single Frequency Network) option
which allows to set up single frequency networks with use of a SFN adapter at the
DVB multiplexer site. In SFN mode, the COFDM modulation and RF up-converter
are locked on a stable 10 MHz external reference coming from GPS (Global
Positioning System). With the optional internal GPS receiver, the V-XCAST offers
a compact and reliable SFN modulation solution.
The full device remote control can be performed via the MIP channel (remote
control from network head-end), or via an RS232 port and the PC software (local
control or remote control via modem) or via a standard SNMP (Simple Network
Management Protocol) manager, allowing a very fast integration with most Control
Systems.
The same PC software can be used for easy logging and maintenance, thanks to an
accessible rear panel RS-232 connector. It will be used to adjust digital
precorrection curves.
Alarms are monitored on front panel leds and on a rear side connector as relay
contacts. Alarms are optionally controlled and monitored by standard SNMP
managers.
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Section 1 Introduction ATLAS Series™
1.3 General Specifications
The following table lists the specifications the Atlas Series™ UHF transmitter.
NOTE:
Specifications subject to change without notice.
Table 1-2 Atlas Performance Specifications
Item Units Conditions Notes Value
General
Frequency Range Mhz Any UHF TV
Channel
470-860
DTV Channel
Bandwidth
Mhz "8, 7 or 6
Mhz"
Cabinet Output Power
(before mask filter)
kW At 37 dB shoulders (measured
+/-4.2 MHz from center of
channel for a 8 Mhz DTV
channel)
Model Power
DVL400 450W
DVL800 850W
DVL1100 1.25kW
DVL1500 1.7kW
DVL2200 2.5kW
DVL3000 3.4kW
DVL4300 4.7kW
DVL5700 6.2kW
System Output Power
(after mask filter)
kW At 37 dB shoulders (measured
+/-4.2 MHz from center of
channel for a 8 Mhz DTV
channel)
Model Power
DVL400 410W
DVL800 800W
DVL1100 1.1kW
DVL1500 1.5kW
DVL2200 2.2kW
DVL3000 3.0kW
DVL4300 4.3kW
DVL5700 5.7kW
Variation in Output
Power
% At rated Power (RMS) within
AC mains variation spec and
+/- 5 Degree C from Nominal
Operating Temperature
+/-2
RF Load Impedance Ohms 50
RF Load VSWR Measured on any 8 Mhz
channel
1.1:1
Output Connector
Medium Power
"1-5/8"" EIA
Flanged"
Output Connector High
Power
"3-1/8"" EIA
Flanged"
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Section 1 Introduction
ATLAS Series™
Performance
Equivalent Noise
Degradation (END)
dB Measured per ETR 290 < 0.5
Modulation Error Ratio
(MER)
dB At rated Power and -37 dB
shoulders (using HP89440)
Within the
performance
temp window
> 33 dB
Phase Noise dBc/HzAfter warm up time -95@10Khz
Frequency stability
(without external
reference)
+/- HzStand alone transmitter < 17
Frequency stability
(with external
reference)
+/- HzRequires external 10 Mhz < 0.1
Coarse Frequency
Offset Range
+/Mhz
In steps of 166 KHz 4
Fine Frequency Offset
Range
+/KHz
In steps of 1Hz 166
Transmitter Processing
Delay
msec From TS input to RF output Used in SFN
operation
programmabl
e to 1 sec max
Spurious Radiation
Harmonics and
spurious emissions
dBc "After Mask Filter,
referenced to average
transmitter power"
Depends on
DTV Mask
requirement
of individual
countries
< -60
Harmonics before
Mask Filter
dBc Transmitter output before
mask filter
< -40
AC Line
AC Line Voltage (3phase models)
VAC 3-phase 50/60 Hz select one "380, 400,
415"
AC Line Voltage (1phase models)
VAC 1-phase 50/60 Hz "220,230,240
"
AC Line Voltage
Variation
% "+10, -15"
Power Factor (3-phase
models)
"DVL1500, DVL2200,
DVL3000, DVL4300,
DVL5700"
> 0.94
Power Factor (1-phase
models)
"DVL
400,DVL800,DVL1100"
> 0.97
Overall Efficiency
(typical)
% AC power to RF average
power
18% Typical
Table 1-2 Atlas Performance Specifications
Item Units Conditions Notes Value
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Section 1 Introduction ATLAS Series™
Environmental
Operational
Temperature Range
°C Derate 2
degree C per
300m AMSL
0-45
Operational Relative
Humidity
% non-condensing 0 - 90
Altitude metersAMSL 0-4000
Cooling Method
(primary)
% Liquid cooling Propylene
Glycol/
Water
50/50
Acoustic Noise dBA Measured 1m from front of
cabinet and 1m up from the
floor (does not include
cooling pump module and
heat exchanger)
<65
Residual Heat
transferred to room
kW Maximum per transmitter
cabinet with 8PAs
< 3.9
Physical
Dimensions mm Single Cabinet Transmitter DVL400 thru
DVL3000
700W x
1980H x
1040D
Dual Cabinet Transmitter DVL4300 &
DVL5700
1400W x
1980H x
1040D
Weight Kg Weight includes all options Model Weight
DVL400 303
DVL800 330
DVL1100 365
DVL1500 399
DVL2200 463
DVL3000 526
DVL4300 894
DVL5700 1020
"Note: Unless otherwise noted, these specifications apply at the output of a Harris supplied mask
filter."
Table 1-2 Atlas Performance Specifications
Item Units Conditions Notes Value
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