Harris Atlas DVL1500 Technical Manual

Atlas Series™

T.M. No. 888-2473-001

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 sche-

matic) 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, INSTRUC-

TIONS 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, ENCLO-

SURES, 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 DEFEC-

TIVE CAPACITOR. DO NOT ATTEMPT TO SERVICE A DEFECTIVE CAPACITOR

WHILE IT IS HOT DUE TO THE POSSIBILITY OF A CASE RUPTURE AND SUB-

SEQUENT 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

Portugues

e

HARRIS 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

2/25/03 888-2473-001 1-1

WARNING: Disconnect primary power prior to servicing.

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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WARNING: Disconnect primary power prior to servicing.

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

2/25/03 888-2473-001 1-3

WARNING: Disconnect primary power prior to servicing.

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 1-

3 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

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

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

2/25/03 888-2473-001 1-5

WARNING: Disconnect primary power prior to servicing.

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

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

RF Splitter

RF Combiner

Reject

Load

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WARNING: Disconnect primary power prior to servicing.

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 sub-

systems:

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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