Elettronika S r l TXUD2000A 2000 Watt ATSC Transmitter User Manual TXUD2000 ATSC UHF TV TRANSMITTER PMD

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Document Description	Transmitter User Manual Part 1
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Date Submitted	2010-02-22 00:00:00
Date Available	2010-06-10 00:00:00
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Document Title	TXUD2000_ATSC UHF TV TRANSMITTER.PMD
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Document Author:	LattanzioG

TXUD2000/ATSC UHF TV Transmitter
CODE
TXUD2000/ATSC TITLE
TXUD2000/ATSC UHF TV TRANSMITTER REV
DATE
11/02/09
Registration number: IT-17686
Registration number: IT-24436
SS 96 Km 113
70027 Palo del Colle (Ba) ITALY
Tel. +39 (0)80 626755
Fax +39 (0)80 629262
E-mail: elettronika@elettronika.it
Web site: http://www.elettronika.it
WARNING
The apparatus described in this manual has been designed and manufactured with devices to safeguard the users. In any case it is recommended that during any operation of installation, maintenance,
miscellaneous interventions and calibrations requiring the apparatus to be switched on,
THE USER TAKES ALL THE
PRECAUTIONS AGAINST INCIDENTS
It is required to use the proper clothes and protection gloves in order to prevent damages from incidental contacts with high-voltage parts.
The manufacturer declines every responsibility in case the recommendations above are not followed.
IMPORTANT
The component lists attached to the relevant electrical diagrams indicate for each item the reference,
the description and the type normally used.
The Elettronika S.r.l. though reserves the right to use or supply as spare parts components with
equivalent characteristics but of a different type, assuring anyway the optimal work of the apparatus
in accordance with the specifications.
The enclosed monographs are solely owned by Elettronika S.r.l.
The use of anything enclosed in this technical manual without explicit authorization given by Elettronika
S.r.l. will be prosecuted by the law.
The data and technical characteristics of the apparatus described in this manual are not compelling for
the manufacturer.
The Elettronika S.r.l. reserves the right to make, without previous notice, modifications or updates in
order to improve the quality of the product.
The general conditions of supply and sale are described in the contracts.
The delivery time are in accordance with the products and quantities ordered.
Warranty
Summary of warranty
We, ELETTRONIKA S.r.l., SS096 Km 113 Z.I. PALO DEL COLLE (BA) ITALY, warrant to the ORIGINAL PURCHASER of a NEW product, for a
period of one (1) year from the date of purchase by the original purchaser (the “warranty period”) that the new ELETTRONIKA product is free of defects
in materials and workmanship and will meet or exceed all advertised specifications for such a product. This warranty does not extend to any subsequent
purchaser or user, and automatically terminates upon sale or other disposition of our product.
Items excluded from this ELETTRONIKA warranty
We are not responsible for product failure caused by misuse, accident, or neglect. This warranty does not extend to any product on which the serial
number has been defaced, altered, or removed. It does not cover damage to loads or any other products or accessories resulting from ELETTRONIKA
product failure. It does not cover defects or damage caused by use of unauthorized modificstions, accessories, parts, or service.
What we will do
We will remedy any defect, in material or workmanship (except as excluded), in our sole discretion, by repair, replacement, or refund. If a refund is
elected, then you must make the defective or malfunctioning component available to us free and clear of all liens or other encumbrances. The refund will
be equal to the actual purchase price, not including interest, insurance, closing costs, and other finance charges less a reasonable depreciation on the
product from the date of original purchase. Warranty work can only be performed at our authorized service centers or at our factory. Expenses in
remedying the defect will be borne by ELETTRONIKA, including one-way surface freight shipping costs within the United States. (Purchaser must bear
the expense of shipping the product between any foreign country and the port of entry in the United States and all taxes, duties, and other custom’s fee(s)
for such foreign shipments).
How to obtain warranty service
You must notify us of your need for warranty service not later than ninety (90) days after the expiration of the warranty period. We will give you an
authorization to return the product for service. All components must be shipped in a factory pack or equivalent which, if needed, may
Desclaimer of consequential and incidental damages
You are not entitled to recover from us any consequential or incidental damages resulting from any defect in our product. This includes any damage
to another product or products resulting from such a defect.
Warranty alterations
No person has the authority to enlarge, or modify this warranty. The warranty is not extended by the lenght of time for which you are deprived of
the use of the product. Repairs and replacement parts are provided under the terms of this warranty shall carry only the unexpired portion of this
warranty.
Design changes
We reserve the right to change the design of any product from time to time without notice and with no obligation to make corresponding changes in
products previously manufactured.
Legal remedies of purchaser
There is no warranty which extends beyond the terms hereof. This written warranty is given in lieu of any oral or implied warranties not contained
herein. We disclaim all implied warranties, including without limitation any warranties of merchantability or fitness for a particular purpose. No action
to enforce this warranty shall be commenced later than ninety (90) days after expiration of the warranty period.
Warranty for electronic tubes
The warranty applied for electronic tubes is the one given by the manufacturer of the tube. In the event that the product shows anomalies within the
deadline of the validity of the warranty given by the manufacturer of the product itself, the buyer will have to return it to the seller with the needed
documents and the written description of the defect. The seller will ship the broken tube to the manufacturer in order to effect the necessary technical
tests to find out the cause of the anomaly. Meanwhile the buyer of the tube who needs to use, and as such to replace immediately the product, will have
to buy a new one and provide to the relevant payment, further to the issuing by the seller of a regular commercial invoice. After the adequate tests made
by the manufacturer, should the result be positive, that is confirm the defect in manufacturing, the seller will issue a regular credit note in the name of
the buyer and return the amount paid. Should the result be negative, that is detect a negligence in the installation or use by the buyer, he will have no
right against the seller.
INTRODUCTION
The apparatus described in this manual is the latest of this series, offering high performances, remarkable reliability and a wide range of characteristics, it all at a competitive cost.
Its is easy to install and use. It only takes to follow the installation procedure as shown in this manual:
after having removed all from the package, you only have to follow step by step the description in the
various sections.
Before starting to use the apparatus, remember to:
read carefully the general safety information contained in this section;
follow the instructions for the installation and set up of the apparatus;
read all the remaining sections of this manual in order to know well the apparatus and learn
how to obtain the best of its characteristics.
CONTENTS OF THE MANUAL
The chapter composing this manual contain all the information concerning the use of the apparatus.
For more information refer to ELETTRONIKA S.r.l.
This manual is made up of different chapters, each made up of various sections.
WARNING!
The currents and voltages in this equipment are dangerous!
Personnel must at all times observe safety regulation!
This manual is intended as a general guide for trained and qualified personnel who are aware of the
dangers inherent in handling potentially hazaedous electrical and 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.
Elettronika S.r.l. 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, 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.
Treatment of electrical shock
1) If victim is not responsive follow the A, B, C’s of basic life support.
PLACE VICTIM FLAT ON HIS BACK ON A HARD SURFACE
A - AIRWAY
B - BREATHING
If unconscious, open airway lift up neck, push
forehead back, clear out mouth if necessary,
observe for breathing.
If not breathing, begin artificial breathing. Tilt
head, pinch nostrils, make airttght seal, 4 quick
full breaths. Remember mouth to mouth resuscitation must be commenced as soon as possible.
C - CIRCULATION
Check carotid pulse. If pulse
absent, begin artificial circulation.
Approx. 80sec.: 1 rescuer, 15 compressions, 2 quick breaths.
Approx. 60sec.: 2 rescuers, 5 compressions, 1 breath.
NOTE: DO NOT INTERRUPT RHYTHM
OF COMPRESSIONS WHEN SECOND PERSON
IS GIVING BREATH.
Call for medical assistance as soon as possible.
2) If victim is responsive:
- keep them warm;
- keep them as quiet as possible;
- loosen their clothing (a reclining position is recommended).
FIRST-AID
Personnel engaged in the installation, operation, maintenance or servicing of this equipment are urged
to become familiar with first-aid theory and practices. The following information is not intended to be
a complete first-aid procedure, it is brief and is only to be used as a reference. It is the duty of all
personnel using the equipment to be prepared to give adequate Emergency First Aid and thereby prevent avoidable loss of life.
TREATMENT OF ELECTRICAL BURNS
1) Extensive burned and broken skin.
- Cover area with clean sheet or cloth (cleansed available cloth article);
- do not break blisters, remove tissure, remove adhered particles of clothing, or apply any salve or
ointment;
- treat victim for shock as required;
- arrange transportation to a hospital as quickly as possible;
- if arms or legs are effected keep them elevated.
NOTE
If medical help will not be available within an hour and the victim is conscious and not vomiting, give
him a weak solution of salt and soda: 1 level teaspoonful of salt and 1/2 level teaspoonful of baking
soda to each quart of water (neither hot or cold).
Allow victim to sip slowly about 4 ounces (half a glass) over a period of 15 minutes.
Discontinue fluid if vomiting occurs (do not give alcohol).
2) Less severe burns - (1st & 2nd degree).
- Apply cool (not ice cold) compresses using the cleansed available cloth article;
- do not break blisters, remove tissue, remove adhered particles of clothing, or apply salve or ointment;
- apply clean dry dressing if necessary;
- treat victim for shock as required;
- arrange transportation to a hospital as qickly as possible;
- if arms or legs are affected keep them elevated.
Communication N°1 -2002/95/CE - RoHS Directive
Further to the directives issued by the European Community, 2002/95/CE, 2002/95/CE and 2003/108/
CE, and to the Italian Decree of Law n° 151 dated 25 July 2005, this is to inform the customers of Elettronika
S.r.l. living within the boundaries of the European Community about the following obligations:
1) It is forbidden to trash RAEE products (which includes all broadcasting products which are not expressly
labelled as lead-free) along with normal wastes;
2) Such devices must be brought to proper centres able to perform the adequate processing in order to
recycle their parts where possible and dispose of the raw materials contained therein;
3) For equipment purchased from Elettronika after the 13th of August 2005, the gathering, transport, processing,
recycle and disposal operations are responsibility of Elettronika who will bear all related expenses;
4) For equipment purchased from Elettronika before the 13th of August 2005 , the gathering, transport,
processing, recycle and disposal operations are responsibility of Elettronika, who will bear all related expenses,
only if you are purchasing from us new equipment in substitution of the disposed one;
5) Electric and electronic devices contains lead in soldering, cables, etc. This substance pollutes the environment
and may be accumulated in the organism of plants and mammals. It is dangerous for humans because it may
affect blood, bone marrow, peripheral and central nervous system and kidneys, causing anaemia,
encephalopathies (e.g., convulsions), peripheral neuropathies, cramps of the abdomen and kidney damages.
Besides it affects human reproduction and growth.
These devices also contain mercury. From the environmental point of view, this substance is highly toxic for
aquatic life, and can be accumulated in the organism of fish.
Long-term damages to humans can affect the central nervous system and the kidneys, producing irritability,
emotional instability, tremors, damages to the mind and the memory, language disorders. It may also irritate
and whiten the gums, and its effects may be cumulative. Based on tests on animals, it may affect the human
reproduction or growth.
There is also chrome, which may result in irritation of the eyes and respiration system.
Cadmium is also present. In humans it may damage lungs, due to repeated or prolonged contact with its dust,
and kidneys. It may cause cancer.
6) The symbol below marks the devices which cannot be disposed of along with normal wastes, as stated in
1) and 2) above.
7) The payment of fees is foreseen for the non-allowed disposal of such devices.
This page is intentionally blank
10
TXUD2000/ATSC
UHF TV TRANSMITTER
User’s manual
11
TXUD2000/ATSC UHF TV TRANSMITTER
DESCRIPTION
The TXUD2000/ATSC belongs to the High Power UHF products family of Television Transmitters fully in
LDMOS solid state technology.
The TXUD2000/ATSC series represents the 2kW ATSC TV transmitter operating in the UHF Band for
Common amplification process (separate amplification available) of the Video and Audio carriers and for
Digital TV signals of different standards. This transmitters family has been designed to offer to the customer
high performances, high reliability and greater simplicity in their operation and maintenance procedures.
The Video and Audio signal processing is provided for all Analogue and Digital TV Standards and all types of
Audio applications (Mono and Dual Sound - NICAM) together with colour systems such as PAL - NTSC SECAM. The transmitter ensures optimal performance also with Digital TV signals (DVB-T, ATSC, DTMB,
etc.). Thanks to the amplitude and phase pre-correction circuit, it is possible to cancel the distortions in the
output stage, thus cutting down the operating costs. The RF transposition in the driver is carried out by a
synthesizer with various possibilities of accuracy and stability as well as precision offset locked by internal or
external frequency reference.
When equipped with a dual-mode exciter (Analogue and DVB-T), the transmitter can quickly and easily
switch from analogue broadcasting mode to DVB-T broadcasting mode (and vice versa), to enable a
comfortable operation during the transition period to the full-digital broadcasting time.
The RF Amplifier is made up by four RF Amplifier Modules installed in a power rack; the modules are
dedicated for the Video and Audio carriers common amplification and for Digital TV amplification. The
amplifiers employ solid state LDMOS technology in order to obtain wide band, reliability, and high efficiency.
Each RF module has a built-in switching-mode power supply unit, self-protected against overcurrents and
overvoltages, as well as overtemperature and VSWR for RF parameters. The cooling system is fully contained
into the transmitter. The Amplifier Control unit provides full management of the transmitter without the presence
of the operator, the system includes a central controller and several peripheral units installed in each RF
module and rack. Controller and peripherals are connected by a RS485 full-duplex bus.
Power supply output voltages and currents, Forward and Reflected Powers of any single power amplifier are
monitorized by Amplifier Control unit.
In that way there is a single interface point between user and all the transmitter. The operator inter-face is
made by a high resolution LCD graphic display and a simple keyboard, the menu is very friendly and easy to
use.
The Amplifier Control unit can be fully controlled in 'remote' mode via link or via modem in RS232 or other
interface.
The equipment design allows the soft degradation (RF power loss) for several transistors faults.
12
TECHNICAL CHARACTERISTICS
RF SECTION
Analog Operation
Frequency Range ............................................................................................................................................. 470 - 860MHz
Output Power .......................................................................................................................................................... 5kW PEP
Gain (±2) ......................................................................................................................................................................... 27dB
Video / Audio Power Ratio ...................................................................................... 10/1 single sound - 20/1/0.2 dual sound
Out Stage Technology ............................................................................................................................ Solid State LDMOS
Video / Audio Amplification ..................................................................................................................................... Common
Standards ................................................................................................................................................................ G, K, I, M
Sound Transmission .................................................................... FM single sound - Dual sound coding IRT - NICAM 728
Harmonics and Suppression Emission ..................................................................................... In compliance with CCIR rec.
Intermodulation Products from Video and Audiio ....................................................................................................... < 50dB
Frequency Stability ......................................................................................................................... 2.5ppm (option 0.05ppm)
RF Input Connector ................................................................................................................................................ N Female
RF Output Connector ........................................................................................................................................... EIA 1+5/8”
Digital Operation
Output Power (DVB-T) ...................................................................................................................................... 1200W RMS
Output Power (ATSC) ........................................................................................................................................ 2000W RMS
DVB-T Modes ......................................................................................................... All the modes listed in ETSI EN 300 744
DVB-T MER ....................................................................................................................................................... > 33dB RMS
DVB-T Shoulders Attenuation (After non-critical mask 6-cavity filter) ............................................................. > 40dB RMS
DVB-T Output Spectrum ............................................................................................................. Compliant ETSI EN 300 744
ATSC Symbol Rate ...................................................................................... 10.76MBaud/s (Compliant to ATSC Doc. A/53)
ATSC SNR ......................................................................................................................................................... > 27dB RMS
ATSC Shoulders Attenuation (After simple mask cavity filter ref. total output power) ..................................... > 46dB RMS
ATSC Output Spectrum ......................................................................................................... Compliant to ATSC Doc. A/64
VIDEO SECTION
Video Input ........................................................................................................................................... BNC 75Ω Connector
Nominal Input Level ............................................................................................................................................. 1Vpp ±6dB
Return Loss ................................................................................................................................................................. > 30dB
DC Restoration ........................................................................... Clamped to the blanking level without affecting the burst
White Limiter ............................................................................... At 90% picture signal without affecting the chrominance
Transmission characteristics
Sideband Spectrum Response ..................................................................................................... According to the standard
Amplitude Frequency Response ................................................................................................. According to the standard
Group Delay variation without receiver pre-correction and TV demodulator flat ..................................................... < ±35ns
Non Linearity Distortion (10 to 75% mod.) .................................................................................................................... < 5%
Differential Gain (10 to 75% mod.) .................................................................................................................................. < 5%
Differential Phase (10 to 75% mod.) ................................................................................................................................. < 5°
Signal to random noise ratio (weighted 0.2 to 5MHz) ................................................................................................. > 60dB
Blanking Level Variation ................................................................................................................................................ < 2%
2T k Factor ..................................................................................................................................................................... < 2%
13
AUDIO SECTION
Nominal Input Level (±50kHz dev.) ................................................................................................................... -10 to +8dBm
Input Impedance ............................................................................................................................................ 600Ω balanced
Pre-emphasis .................................................................................................................................................................. 50µs
Transmission characteristics
Amplitude Frequency Response ......................................................................................................... 40 to 15000Hz ±0.5dB
Total Harmonic Distortion ........................................................................................................................................... < 0.5%
FM Signal to noise ratio (referred to ±50kHz dev. f = 400Hz) .................................................................... > 60dB (weighted)
AM Signal to nokise ratio ............................................................................................................. > 50dB (referred to 100%)
AM Synchronous Modulation ..................................................................................................... > 40dB (referred to 100%)
METERING
Output Forward Power (Peak or RMS)
Output Reflected Power (Peak or RMS)
Unbalance Power (last unbalance load in output combiner)
Transmitter Temperature
Power Amplifier Forward Power (Peak or RMS)
Power Amplifier Reflected Power (Peak or RMS)
Power Amplifier Input Power (Peak or RMS)
Power Amplifier Heatsink Temperature
Pallet Current
Power Supply Voltage
Working Timer
INDICATIONS
Cooling Blower Working (with icon on front display)
Transmitter Interlock (with icon on front display)
Alarm (with red LED on front panel)
Transmitter ON/OFF (with green LED on front panel)
Remote ON/OFF (with orange LED on front panel)
Input Mains Phase Missing (with green LED on Power Control panel)
PROTECTIONS
Mains Phase Lack
Output Forward Power
Output Reflected Power
Rack Cooling Failure
Power Amplifier Forward Power
Power Amplifier Reflected Power
Power Amplifier Heatsink Temperature
Module Current
Power Supply Voltage
REMOTE CONTROL SECTION
Parallel Interface ........................................................................................................................... ON/OFF, Alarms, Interlock
Serial Interface ...................................................................................... RS232 or RS485 (Full monitoring and management)
14
GENERAL
Power Supply Voltage ................................................................................................... 3P+N 380V ±15%, 3P+N 230V ±15%
Power Supply Frequency ........................................................................................................................................ 50 - 60Hz
Power Factor ................................................................................................................................................................. > 0.98
Analog Power Consumption (Black) ....................................................................................................................... 13.45kVA
Digital Power Consumption (DVB-T) .......................................................................................................................... 9.0kVA
Digital Power Consumption (ATSC) ......................................................................................................................... 10.2kVA
Housing ......................................................................................................................................................... 1 Rack 19”-42U
Weight (Amplifier / Rack) ................................................................................................................................. 485kg / 500kg
AirFlow ................................................................................................................................................................... 2500m3/h
Temperature ..................................................................................................................................................... -5°C to +45°C
Isolation Transformer (Power / Weight) ........................................................................................................... 20kVA / 250kg
Specifications and characteristics are subject to change without notice
15
INSTALLATION REQUIREMENTS
This section explain how to install and configure the transmitter for your location All internal switching and
setup should be done by qualified service person.
PARAMETER
REQUIREMENTS
TRANSMITTER
ROOM
The room should be clean and free of dust. The building floor
shuold be able to support a load capacity >1000kg/m2
INSTALLATION
AREA
The transmitter should be installed to have space around enough
for ventilation and for maintenance actions to be allowed.
The minimun requirement space is one meter outer boundary of
transmitter.
TEMPERATURE
The transmitter is designed to work from -5° up to 45°C, anyway
to ensure long life is better to keep the room temperature lower
than 35°C.
ELECTRICAL
PLANT
The transmitter power consumption is <10.2kVA (13.45kVA in
analog mode), we suggest to design the main power line
capacity increased by at least more than 50% .
MAINS SYSTEM
The mains system should be three phase with neutral. The
trasmitter is available in two different mains voltage models for
380VAC and 230VAC system.
AIR COOLING
The outlet air should be convoyed out of the room by suitable ducts
(the transmitter air output adapters has a diameter of 320mm).
The air flow required is 2500m3/h.
ANTENNA
The transmitter RF output interface is EIA 1+5/8” (others interface
can be supplied on request in order to match the antenna feeder
or combiner input). The RETURN LOSS of the system should be
greater than 27dB in the operation channel.
Note: the standard cooling system is supplied with internal ventilation system, air inlet and outlet are
on the top. Other different installations can be proposed for various air connection arrangements.
16
SWITCH ON PROCEDURE
Before to switch on the Transmitter is extremely important to check:
- The right connections for the RF system (antenna or external combiner) and take greatest care for the Inner
in each coaxial connections;
- the right connections with the Mains Power Supply network, the Neutral line must be present and connected,
and the correspondence with the voltage nominal value request;
- the right working of the earth-ground connections system, for people safety and transmitter right operation;
- the right connections inside the transmitter with input/output RF cable to/from amplifier block and combiner/
divider system, if for transport or installation reason you had disconnected them before.
To follow with first switch on please follow the below indications:
- Set in OFF position all the frontal switch, Main, Amplifier Control and Amplifiers Block;
- turn ON the Mains and the Amplifier’s switch. The Amplifier Control checks the communications with the
amplifier block. If the communication is ok you can turn ON the Amplifier Control, now automatically the
rack’s blowers and the exciter are switched ON;
- give little power in to the amplifier and check if all the indicator are in the right situation (no reflected, no
unbalance on the Amplifier Control, more or less the same indication for current and power for all the
amplifiers block);
- increase the power slowly slowly. At rated maximum output power some watts might be shown as Reflected
Power due to isolation of directional coupler or return loss from antenna system.
EXCITER DESCRIPTION
The ATSC TRANSMITTER is an 8-VSB ATSC professional exciter, designed for the most demanding
digital TV broadcasting applications. It integrates a modulator module with up-to-date FPGA technology and
advanced digital signal processing algorithms in order to generate an absolutely accurate output 8-VSB signal,
with exceptionally optimized modulation and the output filtering techniques.
Very high linearity performances are possible thanks to very careful RF design over the entire VHF and UHF
bands and with an optimal digital precorrection engine working simultaneously in the time and frequency
domains. A high degree of reliability is guaranteed, moreover, by the use of oversized cooling devices and by
control circuits operated by modern microprocessor technologies. The ATSC TRANSMITTER can be used
as a stand-alone 5W RMS transmitter or as a driver stage for amplifiers of greater power. The excellent
spectral purity of the conversion oscillator lets the ATSC TRANSMITTER radiate an 8-VSB signal with an
excellent MER value. The ATSC TRANSMITTER is equipped with a powerful ASI/SMPTE inputs management
block which allows to manage the Transport Stream (TS) inputs in a fully redundant configuration, thus
significantly improving the reliability of the whole broadcasting system in every operating condition.
The ATSC TRANSMITTER is totally compliant to the A/53, A/54 and A/64 ATSC recommendations with
6MHz output channel bandwidth, in VHF and UHF bands.
17
RF AMPLIFIER MODULE DESCRIPTION
The RF Amplifier Modules place in the TXUD2000ATSC Transmitter station are equipment designed to
simplify transport and installation. Born to ensure high working reliability they excel also for their great
performance.
Thanks to the excellent linearity of the amplifiers, achieved with the use of the state-of-the-art LDMOS
(UHF) technology, these equipment allow excellent performance both with analog and digital TV signals.
The design redundancy (a power supply for every MOS device), the oversized unbalanced power dummy
loads, the wide input range of the switching-mode power supplies, allow a NO STOP transmission 24h per
day. The temperature of the amplifiers is guaranteed by a forced air cooling system extremely noiseless.
The presence of Amplifier Control that collects all measures from amplifiers and from antenna system ensure
a single control point to access to all MOSFET currents, power supplies voltages, temperature of the heat
sinks, amplifiers output powers together with the RF power reading of the output antenna system.
A multifunctional display on the Amplifier Control makes it possible to verify all the operating parameters of
the unit. The amplifiers in the series are remotable by wired telemetry connector or by serial communication,
RS232 on front panel or RS485 on rear panel of the Amplifier Control.
CHANNEL CHANGE PROCEDURE
To proceed with a channel change operation, please follow the below indications:
- Follow the channel change indications on users manual of the exciter;
- from each RF Amplifier Modules select the new closest channel frequency;
- tune the Bandpass Output Filter on new channel;
- if the difference with the two channel is less than 10 you don’t need to change the power amplifier phase
balance. Otherwise, connect a digital meter to a DC Monitor (BNC) on each dummy load and keep low the
value, by tuning the microstrip length on the input divider;
- connect a Wattmeter and a Dummy Load;
- set the rated output power and tune the right Forward Power indication on the Amplifier Control display;
- set the output at 10% of the rated ones, swap the Forward and Reflected cable on the rear of the Amplifier
Control and set the reflected indication.
The 3dB Output Coupler is a wide band type and don’t need any tuning operations.
DIGITAL UPGRADE
The amplifier is ready to operate with a DVB-T signal keeping the same analogue high performance.
- Replace the analogue Bandpass Filter with a digital ones (critical or not critical mask are well supported);
- select the RMS Detector instead of peak one on Amplifier Control and on each power amplifier to have the
right power indication and the new power alarm threshold;
18
- replace the analogue Cxciter with a DVB-T ones. If you use a DVB-T Modulator with IF output you can
use the IF VEGA input;
- the output power should be around 1/4 (in DVB-T mode) or 1/3 (in ATSC mode) of the analogue rated power
(for example: the 5kW = 1.2kW rms in DVB-T mode or 5kW = 2.0kW rms in ATSC mode).
19
Component list
APT200B/ATSC
Elettronika Code
Description
Qty
01404
02015
02408
02459
02502
02526
02527
02791
02844
02865
02871
02886
02893
02894
03205
05447
05448
06648A
06655A
06870
07528A
07549
07550A
07553
07558B
07574
07620
07625
07625A
07810
07970
08504
A9029
APG012C
APG050F
APT144CM
C0205
C0798
CMS6006
CMS6009
CSS5011
DET1069
DET1126
DET1183
DET1184
BYPASSING CAPACITOR
BNC CONNECTOR FOR RG58 CABLE
90° 7/16” MALE-90° 7/16” FEMALE CONNECTOR
EIA 1+5/8” INNER CONNECTOR
SMA SOCKET FOR RG58 CABLE
EIA 1+5/8” RIGID LINE
EIA 1+5/8” ANGLE
DB9 MALE SOCKET PANEL MOUNTING
2 POLES SHIELDED SOCKET
4 POLES SHIELDED SOCKET
DB9 SHELL
3m 16A MALE/FEMALE CABLE
3 WAY MALE SCREW TERMINAL
3 WAY FEMALE SCREW TERMINAL
HP 5082/2800 DIODE
ALLOY COPPER BAR DRILLED
M6 BAR METALS
EIA 1+5/8” DIRECTIONAL COUPLER
UHF DTV BANDPASS FILTER
90° EIA +15/8” MECHANICAL DETAIL
2 POLES 16A CURRENT DEVICES
4x63A CURRENT DEVICES
1P+N 500V FUSE-HOLDER
220V GREEN LIGHT
TIMER MODULAR FINDER
63A CONTACTOR
HIGH GRID
EBM BLOWER
3uF CAPACITOR
AC FILTER
PVC PROTECTION
RG58 50Ω CABLE
7.5kW UHF MULTICOUPLER
AMPLIFIER CONTROL
230VAC THREE-PHASE POWER CONTROL
AUTV/1500LD LMOS UHF TV AMPLIFIER
MULTIPOLE CABLE
MERLIN PLASTIC TAP
1m 1/2” CABLE WITH 7/16” MALE CONNECTOR
1.5m 1/2” CABLE WITH 7/16” MALE CONNECTOR
N MALE-N MALE CONNECTOR FOR RG58 CABLE
DET1069R0 BLOCK FOR CONTAINERS WITH WHEELS
DET1126R0 EIA 1+5/8” RIGID LINE SUPPORT
DET1183R3 BAR SUPPORT GUIDE
DET1184R4 ANGOLAR SUPPORT EQUIPMENT
1.00
14.00
7.00
11
12
20
Page 1/2
DET1201
DET1204
DET1205
DET1283
DET1287R2P
DET1288
DET1294
DET1334R0P
DET1336R0P
DET1343R2P
DET1350R0P
DET1351R0P
DET1362R2Z
DET1367R0P
DET1416R0P
DET1528R0P
DET1529R0P
DET1646R0P
FUS04
MTG0143AR0
MTG0149AR0
PAN0080
PAN0082
SCH0268AR0
R0032
RAK0006U42
V0769
V0929
V0973
V0974
V0975
V0976
V0989
DET1201R1 ANGOLAR SUPPORT BOX
DET1204R0 GUIDE SUPPORT
DET1205R0 GUIDE SUPPORT AMPLIFIER CONTROL 2
DET1283R0 BAR SUPPORT BANDPASS FILTER
DET1287R2 DISTRIBUTOR NETWORK COVERAGE 1
DET1288R0 SPECIAL SPREADING GUIDE EXCITER 2
DET1294R1 GUIDE DIN DISTRIBUTION NETWORK 1
DET1334R0 FIXING ANGOLAR AC FILTER NETWORK 1
DET1336R0 FIXING PLATE FILTER NETWORK
DET1343R2 ANGOLAR SUPPORT EQUIPMENT
DET1350R0 DIN GUIDE SUPPORT POWER CONTROL 1
DET1351R0 SUPPORT NETWORK COVER. DISTRIB. 2
DET1362R2 SUPPORT DIRECTIONAL COUPLER
DET1367R0 ANGOLAR SUPPORT EQUIPMENT
DET1416R0 SUPPORT FAN CAPACITOR
DET1528R0 BAR SUPPORT OUTPUT COUPLER
DET1529R0 FIXING DEIAL OUTPUT COUPLER
DET1646R0 CONVEYER
4A 500V FUSE
0.7+0.7+1.4kW UHF DUMMY LOAD
4 WAY UHF INPUT DIVIDER
PAN0080R0 1U FRONT PANEL
PAN0082R0 3U FRONT PANEL
FAN CABLE BOARD
PLASTIC BOX FOR DOCUMENTS
42U OMP RACK
BLACK PLASTIC TAP
TETRAPOLAR TERMINAL
5 POLES AC SOCKET COVER
AC SOCKET COVER
CABLE HEAD
FEMALE CONTACT
4 WAY AC MULTISOCKET
21
1 = CONTROL
2=N
3=T
4=S
APG050F
POWER CONTROL
5=R
FANS POWER 1
APG012C
AMPLIFIER
CONTROL
MAINS INPUT
2 x AXIAL FANS EBM
A2E 250-AM06-13
DRIVER POWER
MAINS INPUT
APD043A
EXCITER
MAINS INPUT
EXCITER
(Optional)
MAIN
AUX
ATS
(Optional)
MAINS INPUT
MULTIPLE
SOCKET
=G
2-5 = L
1 = NC
4-3 = L
APT144CM
AUTV/1500LD
=G
2-5 = L
1 = NC
GROUND BAR
4-3 = L
APT144CM
AUTV/1500LD
=G
2-5 = L
1 = NC
4-3 = L
APT144CM
AUTV/1500LD
=G
2-5 = L
1 = NC
4-3 = L
GND
A2
A1
22
GND
APT144CM
AUTV/1500LD
MAINS FILTER
FN 256-64-52
MAIN BREAKER
4P 63A/6000
CONTACTOR
4P 63A/COIL 230V
FUSE
4A 500V 28x10mm
TIMER
FINDER 81.01
MAIN BREAKER
2P 16A/6000
LIGHT
110/230V GREEN
SOCKET
2X10A+G
470-860MHz
4 WAY HYBRID SPLITTER
RF OUT
L1
RF OUT
RF IN
RF OUT
RF OUT
A1
A2
A3
L3
L2
A4
L1
L3
L2
RF INPUT CONNECTIONS
RF OUTPUT CONNECTIONS
DUMMY LOAD CONNECTIONS
INTERCONNECTIONS CABLE
23
A1
A2
A3
A4
RF MONITOR CONNECTION
RS485 AMPLIFIER CONNECTIONS
FWD AND REF CONNECTIONS
24
AGC CONNECTION
REMOTE CONTROL CONNECTIONS
25
2
UNBALANCE CONNECTION
24V FAN CONNECTION
26
27
28
29
Component list
APG050
Elettronika Code
Description
Qty
00173
02881
02882A
02897
02898
03060
07528H
07541
07543
07561B
07638
07639
CON0311
CON0312
DET0773
FUS00012
FUS2A
PAN0155R2P
PN1286A
V0977
V0978
V0979
Z0021
68kΩ 1/2W RESISTOR
4 POLES MALE CONNECTOR
4 POLES 90° FEMALE CONNECTOR
2 WAY MALE CONNECTOR
2 WAY 90° FEMALE CONNECTOR
5mm GREEN LED
1 POLE 20A 250V MAGNETO-THERMIC SWITCH
10A FUSE-HOLDER PANEL MOUNTING
FUSE-HOLDER PCB MOUNTING
110V RELE
SWITCH
EMERGENCY BUTTON
CON0311R0 COVER
CON0312R0 MULTISOCKET BOX
DET0773R0 MECHANICAL DETAIL
COVER FUSE
2A FUSE
PAN0155R2P FRONT PANEL
PN1286AR2 PRINTED CIRCUIT BOARD
AC SOCKET
BOX
MALE CONTACT
MECHANICAL DETAIL
12
30
MAIN CONTROL BOARD
SCH0398AR0
SCH0398AR0 Component layout
SCH0398AR0 COMPONENT LIST
Part Name/Number
Description
Qty.
Comps.
DL LEDG5 03060
FUSE 2A-PCB 7543
J CON KBW02_2P_M_90°
J CON KBW04_4P_M_90°
R 100R-1/2W 00139
RL FINDER40.52 756A
03060 GREEN LED DIODE 5mm
7543 5x2 FUSE-HOLDER + FUSE
02897 + 02898 ELSAP PCB CONNECTOR
02881 + 02882A ELSAP PCB CONNECTOR
00139 1/2W 5% RESISTOR
7567A RELE
12
DL1-3
F1-3
J3-5
J1-2
R1-12
RLY1-3
31
32
FAN CABLE BOARD
SCH0268AR0
SCH0268AR0 Component layout
SCH0268AR0 COMPONENT LIST
Part Name/Number
Description
Qty.
Comps.
J CON HD515V/05-3PVE
J TESTP1.3mm 07913
02893+02894 PAN PCB CONNECTOR
07913 TEST POINT
J1-3, J8
J4-7, J9-10
33
34
0.7+0.7+1.4kW UHF DUMMY LOAD
MTG0143AR0
DESCRIPTION
The MTG0143A module is a load including three unbalancing loads. Two of them can dissipate 700W CW,
the other up to 1400W CW.
The input connector of each load is 7/16” Female. Inside the loads, Florida RF-Labs resistors are used. The
measured Return Loss is higher than 22dB in the band from 450 to 870MHz.
Besides there is an input (BNC Female connector) for each load allowing to monitor the unbalancing power
level on the load. This input is very useful both for testing and while changing channel.
The rear panel of the load module also as other two inputs:
- 2 pin shielded plug to power the SCH0404A board and the fans;
- 4 pin shielded plug used for the serial cabling of the Load modules and the Amplifier Control modules in the
complete device, in order to protect it in case of failure.
The following is a short description of the operation of the module. Next to the resistors there are two
transducers, LM35DT, converting a temperature measure into a control voltage. In case of unbalancing
between the amplifiers, the RF power affects the load and the temperature of the heat sink increases. After a
first higher threshold has been passed, the control voltage, trough the SCH0404A board, enables the fans. In
normal conditions this decreases the temperature of the heat sink until it goes under a lower threshold, then the
control voltage disables the fans.
In case the temperature should rise to about 90°C for any reason, the protection circuit is triggered and
blocks the entire device.
TECHNICAL CHARACTERISTICS
Frequency Range
Max Power
Return Loss
Powr Supply Voltage
RF Input Impedance
460 - 870MHz
700 - 1400W
> 22dB
+24V
50Ω
35
FRONT PANEL
1. Grid
REAR PANEL
1. L-1 RF Input Connector
2. Test Point
3. L-3 RF Input Connector
4. Unbalance Connector
36
5. L-2 RF Input Connector
6. Test Point
7. 24V Fan Connector
8. Grid
Component list
MTG0143A
Elettronika Code
Description
Qty
00028A
00441
00664
01041
01041D
01400
02010
02018
02402
02843
02518
03207
05552B
07586
07596
08500
09419
CON0009
CON0290
CON0348R1P
CON0349R1P
DET1054I
DET1185
DET1253
DET1254
DET1255
DET1256
DET1257
DET1318R0P
PAN0156R1P
PN1269AR3F
PN1271A
PN1273A
R0012
SCH0404AR1
82Ω 1206 SMD RESISTOR
350W 50Ω HIGH POWER TERMINATIONS
LM35DT THERMAL SENSOR
1nF 50V CERAMIC CAPACITOR
1nF 1206 SMD CAPACITOR
BYPASSING CAPACITOR
BNC FEMALE CONNECTOR
UG909 CONNECTOR FOR RGB174 CABLE
7/16” FEMALE CONNECTOR
2 POLES SHIELDED SOCKET
SMB SOCKET FOR RG174 CABLE
HSMS-2802-TR1G DIODE
3-4U HANDLE KIT
24V PAPST FAN
GRID FAN
RG174 50Ω CABLE
PN419/A PRINTED CIRCUIT BOARD
CON0009R3 REAR PANEL
CON0290R0 COVER
CON0348R1P MECHANICAL DETAIL
CON0349R1P MECHANICAL DETAIL
DET54R1 MECHANICAL DETAIL
DET1185R1 MECHANICAL DETAIL
DET1253R2 HEAT SINK
DET124R2 MECHANICAL DETAIL
DET1255R1 MECHANICAL DETAIL
DET1256R1 MECHANICAL DETAIL
DET1257R2 DUMMY LOAD COVER
DET1318R0P MECHANICAL DETAIL
PAN0156R1P FRONT PANEL
PN1269AR3 700W UHF DUMMY LOAD
PN1271AR3 PRINTED CIRCUIT BOARD
PN1273AR2 PRINTED CIRCUIT BOARD
18mm DIAMETER WHEEL
TEMPERATURE CONTROL BOARD
0.80
37
DUMMY LOAD TEMPERATURE CONTROL BOARD
SCH0404AR1
SCH0404AR1 Component layout
SCH0404AR1 COMPONENT LIST
Part Name/Number
Description
Qty.
Comps.
CC 100nF-S 01065E
CC 10nF-S 01053A
CE 100uF50V-S 01795A
IC LM358M-S 04660
IC LM393-S 04639
J CON KBW02_2P_M_90°
J CON KBW04_4P_M_90°
J SMB-PCB 02516
J TESTPOINT-P
R 10K-S 00053C
R 12K-S 00054C
R 15K-S 00055C
R 1K0-S 00041C
R 1K8-SS
R 1M-SS
R 220R-SS
R 2K0-SS
R 47K-S 00061C
R 4K7-S 00049C
R 5K6-S 00050C
RL 40.31.24
TR BC807 03453
01065E Y5V 0805 CAPACITOR
01053A SMD 0805 CAPACITOR
01795A ELET. SMD CAPACITOR
04660 SMD INTEG CIRCUIT
04639 SMD INTEG CIRCUIT
02897 + 02898 ELSAP PCB CONNECTOR
02881 + 02882A ELSAP PCB CONNECTOR
02516 PCB CONNECTOR
TEST POINT
00053C RES 1/4W 5% SMD 0805
00054C RES 1/4W 5% SMD 0805
00055C RES 1/4W 5% SMD 0805
00041C RES 1/4W 5% SMD 0805
00044B RES 1/4W 5% SMD 0805
00077B RES 1/4W 5% SMD 0805
00033D RES 1/4W 5% SMD 0805
00004 RES 1/8W 1% SMD 0805
00061C RES 1/4W 5% SMD 0805
00049C RES 1/4W 5% SMD 0805
00050C RES 1/4W 5% SMD 0805
7567C RELE
03453 PNP SMD TRANSISTOR
C1-2, C4-5, C7, C9
C3, C6
C8
IC1
IC2-3
J6
J5
J7
J1-4
R1, R6, R9, R11, R22, R34
R7, R17, R31, R36
R4, R15, R23, R35
R19, R33
R2, R8, R24, R27
R14, R16, R29-30
R20-21
R10, R12
R18, R32
R13, R28
R3, R5, R25-26
RLY1
TR1-2
38
39
UHF DTV BANDPASS FILTER
06655A
TECHNICAL DATA
Frequency Range
Configuration
Bandwidth
Max Output Power
Insertion Loss f(0)
Attenuation f(0) ±3.8MHz
Attenuation f(0) ±4.2MHz
Attenuation f(0) ±6MHz
Attenuation f(0) ±8MHz
470 - 862MHz
6 Cavities elliptical
6 to 8MHz
2.5kW (rms)
< 0.3dB
< 0.8dB (SWR 1.22), < 1dB (SWR 1.18)
> 5dB (SWR 1.22), > 6dB (SWR 1.18)
> 30dB (SWR 1.22), > 35dB (SWR 1.18)
> 45dB (SWR 1.22), > 50dB (SWR 1.18)
SWR
2nd Harmonic Attenuation
Group Delay Variation
Temperature Stability
Ambient Temperature Range
Weight
Working Position
Dimensions
Output Connector
< 1.22
> 80dB
< 250ns
< 1.5kHz / K
-10° to +50°C
35kg
Any
Max 370 x 372 x 564mm
EIA 1+5/8” Unflanged
TUNING INSTRUCTIONS
To calibrate the filter PBN153/45-6C/58, a double-track Network Analyser is needed, in order to display
the frequency response of the passing signal and the reflected one. The filter is composed by siz band-pass
cavities with coupling between intermediate cavities.
Connect the filter to the Network Analyser, marking the input. Select the middle frequency of the channel
range in the middle of the screen and set a SPAN of 50MHz.
Turn the coupling (4) (fig. 1) to the end.
Act on the tuning rods (1) (fig. 1) until the curve is displayed at the center of the screen, then act on the
interstage couplings (2) and on the IN/OUT couplings by rotating the screw (3) to obtain a band width of
about 8MHz.
Set the instrument for a SPAN of 20MHz, move the markers to the limits of the used band (Fo ±3.9MHz).
40
Rotate the coupling (4) (fig. 1) until the notch attenuations appear and are positioned at about ±6MHz
from the centre of the channel.
Alternately proceed with all adjustments, taking into consideration that each time the IN/OUT couplings
(3), the nearer tuning to the relevant coupling and the relevant interstage coupling must be shifted.
Once an adaptation over 25dB has been obtained, included between the two markers at the limits of the
band in use, lock the fastrening handle (4) compensating the locking rotation (anticipating it).
Fasten the couplings (2).
Fasten the tunings by means of a 10mm wrench, compensating each time the mechanical adjustment of
each.
Example of tuning in CH 31 Standard B 8MHz.
41
42
ACCESSORIES
AMPLIFIER CONTROL
User’s manual
43
This page is intentionally blank
44
Section 1 - Information
Contents:
1.1 Description
1.2 Technical characteristics
Front panel
Rear panel
Front and rear panel connectors
Block Diagram
45
AMPLIFIER CONTROL
1.1 DESCRIPTION
The Amplifier Control (AC) module is the equipment that allows to monitor and manage from a single location
a modular transmitter, composed by several combined amplifier modules (AM). The AC continuously monitors
the status of the AMs and highlights any anomaly, it monitors the powers in antenna (forward and reflected)
and the unbalancing, if any, showing all of the parameters on the display and through the status LEDs. It is
possible to power supply the fans of the rack directly by the AC, which constantly monitors their operation,
thus protecting the AMs and the other components in the rack in case of failure. Even the exciter(s) can be
powered directly by the AC, so that it can be switched on or off along with the amplification stage.
The human-machine interface (HMI), intuitive and user-friendly - most of all thanks to the large graphic
display which covers the most of the front panel and to the six status LEDs -, the noise-immune RS485
connection with the AMs, the possibility to connect a series of switches to an Interlock input and the remote
control option make the AC a reliable, as well as easy to use, device to be used in low and high-power, FM
and TV, analogue and digital, combined and separated transmitters.
In most cases the AC is already installed into the transmitter, wired and calibrated, so that the user can use it
without having to worry about technical details. Anyway, Section 2 of this manual covers the main information
about installation and external connections. For additional technical information, contact the Customer Service
of Elettronika S.r.l. or the local distributor. Section 3 describes the operation of the AC and everything the
user can do with it. Read this section carefully before using the device.
46
1.2 TECHNICAL CHARACTERISTICS
Human-Machine Interface
- 240x128 graphic display with CCFL backlight
- 3 general LEDs (ON, REMOTE, ALARM)
- 3 alarm LEDs for RF powers (FWD, REF, UNB)
- 4 push-buttons (ESC, RET, UP, DOWN)
Alarms resulting in the transmitter being switched off
- Fans rotation (about 10 second delay)
- Interlock (immediate, can be disabled)
- Antenna Reflected power (if configured)
Alarms not resulting in the transmitter being switched off
- Lack of communication with an Amplifier Module
- Amplifier module locally switched off
- Alarm on amplifier module
- Power in antenna or unbalancing beyond the threshold (Reflected power alarm can be configured to switch off the transmitter)
Connections on the front panel
- RF Monitor on 50Ω BNC connector (0dBm at the nominal power)
- RS232 on DCE-type D-SUB9 female connector, for control via PC or firmware update
Connections on rear panel
- RS485 on two D-SUB9 female connectors for the connection with the Amplifier Modules
- RS485 on D-SUB9 female connector for the connection with an optional remote control device*
- Telemeasures (Forward power, Reflected power, Unbalancing, Alarm) and telecontrol (ON/OFF) on D-SUB25 female connector
- Up to 8 RF powers can be monitored on BNC connectors
- Fans rotation control on BNC connector
- Alarm on the opening of a series of switches (Interlock) on BNC connector
- Power supply +24Vdc available on two 2-poles connectors
Miscellaneous
- Real-time clock with CR2032 lithium backup battery (nominal voltage 3V, nominal capacity 210mAh)
- Alarm and event list up to 130 entries
- 100-240Vac 50/60Hz Power Supply
- 19”-3U Cabinet, deep 260mm
- 6kg Weight
- Operating Temperature -5° to +45°C
- Relative Humidity 20% - 90%
- Altitude up to 2500m
* For more information contact the Sales Department of Elettronika S.r.l. or the local distributor.
Specifications and characteristics are subject to change without notice.
47
Front panel
48
RS232
AMPLIFIER CONTROL
MICROPROCESSOR CONTROLLED SYSTEM
POWER
DESCRIPTION
Status LEDs
Alarm LEDs
RS232 Socket
LCD Display
Function Keys
RF Monitor Connector
Main Switch
DESCRIPTION
16
RF Monitor Input Connector
Main Power Supply Socket with Fuse (10A)
Driver1 Power Supply Socket
Driver2 Power Supply Socket
Fans Power Supply Socket
1A Fuse (+24Vdc)
Fuse (Fans: the value may change)
Fuse (Fans: the value may change)*
+24Vdc Connector
12
10
FANS CONTROL
AGC
RS485 AMPL
13
RS485 REMOTE INTERLOCK
14
TELEMEASURES
11
15
Rear panel
24Vdc
10 AGC Socket
11 Telemeasure Socket
FUSE
FANS1 POWER
15 Interlock Connector
16 Power Measurement Connector
DRIVER POWER
RF MONITOR IN
FANS2 POWER
FUSE
MAIN POWER SUPPLY
13 RS485 Amplifiers Socket
14 RS485 Remote Control Socket
GND
FUSE
12 Fans Control Connector
* Present only in two racks transmitter
49
Front and rear panel connectors
RS232 (on front panel)
Pin 2:
Pin 3:
RS232 TX
RS232 RX
Pin 5:
Remote RS485 for RCU connection
(on rear panel)
GND
Pin 2:
Pin 3:
Pin 5:
AGC (on rear panel)
Pin 1:
Pin 2:
Pin 3:
Pin 8:
Pin 9:
GND
AGC Alarm TTL Output
GND=AGC Alarm
+5V=no AGC Alarm
AGC Alarm TTL Output
GND=AGC Alarm
+5V=no AGC Alarm
Forward Power
Analog Output (0V - 5V)
Forward Power
Analog Output (0V - 5V)
Pin 7:
Pin 8:
RS485 TXRS485 TX+
Pin 2:
Pin 3:
Pin 5:
Telemeasures (on rear panel)
Pin 1:
Pin 6:
Pin 7:
Pin 8:
Pin 9:
Pin 14:
Pin 19:
Pin 20:
Pin 21:
Pin 22:
Pin 23:
Pin 24:
50
RS485 RXRS485 RX+
GND
RS485 Amplifiers
(on rear panel)
Remote ON/OFF TTL Input
GND=Remote ON
+5V or float=Remote OFF
Alarm TTL Output
GND=Alarm
+5V=no Alarm
RMS/PEAK Power TTL Input
GND=RMS
+5V or float=PEAK
GND
GND
Remote Amplifier ON/OFF TTL Input
if Remote ON then
GND=Amplifier OFF
+5V or float=Amplifier ON
Alarm TTL Output
GND=Alarm
+5V=no Alarm
GND
+5V
Forward Power
Analog Output (0V - 5V)
Refleted Power
Analog Output (0V - 5V)
Unbalance Power
Analog Output (0V - 5V)
RS485 TXRS485 TX+
GND
Pin 7:
Pin 8:
RS485 RXRS485 RX+
Fans Control (on rear panel)
Contact: Fans Control Switch
TTL or Free contact Input
Closed/GND=no Fans Alarm
Open/+5V=Fans Alarm
Body: GND
+24Vdc Output (on rear panel)
Pin 1:
GND
Pin 2: +24Vdc Out
(for Dummy Load)
Block diagram
51
This page is intentionally blank
52
Section 2 - Installation
Contents:
2.1 Preliminary operations
2.2 Operating environment
2.3 First installation
2.4 Connection with a Remote Control System
53
2.1 PRELIMINARY OPERATIONS
No wiring is necessary because the device is already installed and correctly connected to the power supply
and other parts of the transmitter. In case a new AC has to be installed, check all connections with the help of
the diagrams and tables in this Section. Correct installation of the equipment is important for maximum
performance and reliability. Before switching on and powering the transmitter, make sure that all connections
are correctly made.
The pinout tables of multi-pin connectors can be found in the Front and Rear Panel in the previous Section.
2.2 OPERATING ENVIRONMENT
The equipment can be installed into a standard component rack or on a suitable surface such as a bench or a
desk. In any case, the area should be as clean and well-ventilated as possible. Always allow for at least 2cm
of clearance under the unit for ventilation. If the device is set on a flat surface, install spacers on the bottom
cover plate. If it is installed in a rack, provide adequate clearance above and below. Do not locate the device
directly above a heat source.
2.3 FIRST INSTALLATION
RF MONITOR INPUT
DUMMY LOAD
MAIN POWER SUPPLY
GND
AC POWER
RF MONITOR IN
AGC
FUSE
FUSE
DRIVER POWER
DRIVER
POWER SUPPLY
FANS2 POWER
FANS1 POWER
FANS
POWER SUPPLY
FUSE
TELEMEASURES
24Vdc
FANS CONTROL
FWD
REF
UNB
RS485 AMPL
RS485 REMOTE INTERLOCK
RS485
AMPLIFIERS
Main Power Supply
Before connecting the power supply cable, make sure that two 10A fuses have been put inside the socket. To
open it, use a little screwdriver to move the plastic table. Then connect the power supply cable. To switch on
the amplifier control, move the switch next to the power supply connector to position 1.
54
DRIVER1/2 Power Supply
The transmitter can be wired so that the exciters are directly fed by the AC. The advantage of this configuration
is the possibility to control the whole transmitter, Amplifier Modules and drivers, from a single point, that is the
AC. Using the adequate male-female cord, connect the power supply of the driver to DRIVER1 POWER
connector, for combined transmitters; connect the power supply of the drivers to DRIVER1 POWER and
DRIVER2 POWER connector, for TV separated transmitter.
FANS Power Supply
The rack in which the transmitter is installed is usually provided with cooling fans. These can be fed directly by
the AC in the same way as the drivers, so that they are automatically switched on and off along with the AMs.
To do this, connect the fans to the FANS POWER connector using the proper cord. The power supply is
limited by a fuse on the rear panel. The blowing current of this fuse depends on the kind of fans in use.
FANS CONTROL
A failure of fans may cause the temperature of the rack to rise beyond acceptable limits, with dangerous
consequences on the most critical parts of the AMs. For this reason, the AC continuously monitor the rotation
of the fan, if it is powered, by analysing the input signal at the FANS CONTROL BNC connector. If the fans
are rotating, the two poles of the BNC connector should be shorted.
INTERLOCK
The Interlock connector may be used as an additional alarm source stopping the transmitter operation. Usually
it is connected to the frame of the rack and activated when it is open, in order to prevent the operators to
touch dangerous electrical parts during maintenance operations. It is possible to connect a series of switches
between the two poles of the BNC Interlock connector: during normal operations all switches are closed, if
any of them is open, the AC detects the absence of continuity between the two poles of the INTERLOCK
connector and immediately stops the transmitter. Anyhow, this behaviour can be disabled from the display.
RF Powers (A-H)
During the normal operation of the transmitter, the AC measures the RF powers in antenna (forward and
reflected) and the unbalancing, if any, at the combiners. A maximum of 8 inputs is possible, even though usually
only 3 of them are used (1 forward power, 1 reflected power, 1 combiner unbalancing). That depends on the
kind of transmitter. Usually channel A is used for forward power, channel B for reflected power, channel C for
the unbalancing.
AGC
In some transmitters it is possible to implement the AGC (Automatic Gain Control) functionality, which allows
to keep the power output in antenna constant in spite of any factor which may make it changes, such as
temperature. To implement the AGC functionality correctly, the exciter (or exciters for dual driver transmitters)
has to be connected to the AC using the cable provided.
When this connection is present and the AGC is enabled on the exciter, the latter can read the power in
55
antenna and keep it constant over time, by increasing or decreasing the internal gain. In case of faults in the
high-power amplifier stage, the AC stops the AGC in order to prevent any possible damage.
AMPL RS485
In a high-power transmitter there are a number of Amplifier Modules (AM) which RF outputs are combined
in order to provide the required total high power. Although these are separated devices, it is necessary to be
able to control all of them from a single point of the transmitter, and even switch them on and off at the same
time. This point is represented by the AC, which is in constant communication with all AMs through an RS485
serial bus, immune from electromagnetic noise inside the rack of the transmitter. All AMs have to be connected
to the AC by using the proper multi-connector cable to one of the two AMPL RS485 connectors.
+24Vdc
On the rear panel there are two two-poles connectors on which a +24V DC power supply is always available,
protected by a 1A fuse. It is usually used to power supply Dummy Loads in the rack.
RF Monitor
On the front panel of the AC there is a monitor of the RF signal in antenna on a 50Ω BNC connector. The
technical staff of Elettronika provides for the correct calibration of this monitor, taking into consideration the
coupling of the directional coupler and all cable losses, if any. At the nominal power of the transmitter, the
signal level at the RF monitor is 0dBm level.
2.4 CONNECTION WITH A REMOTE CONTROL SYSTEM
The AC can be controlled locally by the display and buttons or remotely by using one of the following three
systems: RS485, Telemeasures or RS232 (only one at a time).
MAIN POWER SUPPLY
GND
RF MONITOR IN
AGC
FUSE
FUSE
DRIVER POWER
FANS2 POWER
FANS1 POWER
FUSE
24Vdc
TELEMEASURES
FANS CONTROL
RS485 AMPL
RS485 REMOTE INTERLOCK
PORT n
REMOTE CONTROL UNIT
56
RS232
On the front panel of the AC there is a D-SUB9 female connector used to control the transmitter from a PC,
using a standard RS232 serial connection. For more information about remote control option, contact the
Sales Department of Elettronika S.r.l. or the local distributor.
The pin-out of this connector is DCE-type and can be connected to a PC using a direct cable.
This connector can also be used to update the firmware of the AC. This operation should only be performed
by qualified technicians.
AMPLIFIER CONTROL
RS232
MICROPROCESSOR CONTROLLED SYSTEM
POWER
SERIAL PORT
RS485
On the rear panel there is a D-SUB9 female connector used for remote control via RS485. The RCU device
manufactured by Elettronika S.r.l. is needed for this feature to be used. For more information, contact the
Sales Department of Elettronika S.r.l. or the local distributor.
Telemeasures
The D-SUB25 female connector allows to control the transmitter remotely using a generic control interface.
Some analogue and digital outputs are available on this connector, thanks to which a control system can read
the status of the transmitter. There are also some inputs allowing to switch the transmitter on and off from
remote by opening or closing some contacts.
It is possible to connect two switches to close pin 1 and pin 14 to GND. Usually the switch on pin 1 is open
in order to disable remote control. To switch the transmitter on/off, close/open the switch on pin 14 depending
on the command to be given, then close the switch on pin 1 to send the command. Once it has been received
by the AC, the switch on pin 1 can be open again. For better comprehension see the figure below, showing the
closed switch with a low level and the open one with a high level.
57
Switching on and off the transmitter by means of two switches on pins 1 and 14 of the telemeasures connector
58
Section 3 - Operations
Contents:
3.1 Switching On the Amplifier Control
3.2 Operation
3.3 Menu
59
3.1 SWITCHING ON THE AMPLIFIER CONTROL
After having made sure of the wiring, the transmitter can be switched on by using the mains switch on the rear
panel. The very first time the transmitter is switched on, set the POWER button on the front panel to 0, which
means transmitter off. The display will show for a few seconds an introduction animation, displaying the kind
of transmitter and the firmware version. During this stage, all LEDs light up and the buzzer sounds in order to
check that it works. Since both LEDs and buzzer are used to signal failures, it is important to check them
periodically. Check the paragraph dedicated to the display, later in this manual, in case it should be hard or
impossible to read.
3.2 OPERATION
The Amplifier Control (AC) is the central point of the whole transmitter. It allows to switch on and off all of the
amplifier modules (AM), the exciters and the fans, it monitors alarms and anomalies and automatically applies
any precaution needed, it manages the user interface by means of the display, LEDs and buttons and answers
to local or remote commands by the user.
There are two main operating statuses of the transmitter, ON and OFF, both described in detail below.
OFF Status
In the OFF status the output power in antenna is zero. To switch off the transmitter locally, just set the
POWER button on the front panel to 0. The ON LED is switched off as well. While the POWER button is set
to 1, it is still possible to switch off the transmitter from remote, if this function is enabled, through the RS232/
RS485 serial connections or the TELEMEASURE connector. In this case the ON LED starts blinking.
In OFF status, the AC stops feeding the fans and the exciters, switching them off, and also puts in stand-by all
of the AMs. While in OFF status the AC keeps communicating with the AMs, polling their data and showing
them on the display. Usually, in this situation, most of these parameters are null.
ON Status
The ON status indicates the normal operation of the transmitter, which is switched on and is sending power to
the antenna. To activate this status, just set the POWER button on the front panel to 1, or use the remote
RS232/RS485 serial connection or the TELEMEASURE connector. It is possible to switch on the transmitter
from remote only if this function has been enabled and the POWER button is on position 1. While in ON
status, the ON LED is lit. When changing to ON status, the AC feeds the exciters and the fans and switches
on all of the AMs. While in this status it polls all data from the AMs and shows them on the display. It also
monitors the status of the fans, the Interlock and the RF powers.
Interlock
In case of Interlock alarm, if it is enabled, the AC immediately switches off the transmitter (AMs, fans and
60
exciters). If the alarm ends, the transmitter is automatically switched on again.
Fan Control
In case of fan alarm, that is when the FANS CONTROL shows that they are not working properly, the AC
switches off the AMs and exciter(s) after a few seconds, but keeps the fans on, unlike the Interlock alarm. If
the alarm was due to a temporary block or failure and the fans restarts working, the AC automatically switches
on the AMs and exciter(s) again.
RF Powers
The AC continuously monitors the value of the RF powers in antenna and of the unbalancing, and shows them
on the display. Each power has a maximum threshold which is set in factory depending on the type of transmitter.
If any of this power goes beyond this threshold, the AC indicates an alarm condition by means of the LEDs
and buzzer, and by blinking the indication of the power on the display.
The transmitter is not switched off in this case, because the AMs are protected against excessive power
values. It is possible to enable the REF protection that causes the switching off when the reflected power in
antenna is too high.
LEDs
On the front panel there are six status LEDs which allow a visual verification of the status of the transmitter.
The three LEDs on the left (ON, REMOTE and ALARM) are general ones; the three on the right (FWD,
REF and UNB) refer to the alarms concerning RF powers. Table below shows the meaning of each LED.
LED
COLOUR
OFF
ON
BLINKING
ON
Green
Transmitter Off
Transmitter On
Transmitter Off by remote
REMOTE
Yellow
Remote control disabled
Remote control enabled
ALARM
Red
No alarm present
Alarm present
Alarm ended
FWD
Red
Forward power
under the threshold
Forward power
beyond the threshold
REF
Red
Reflected power
under the threshold
Reflected power
beyond the threshold
UNB
Red
All of Unbalancing
under the threshold
One of Unbalancing
beyond the threshold
3.3 MENU
During normal operation, all information gathered by the AC (RF powers, parameters of the AMs, temperature,
date, time, etc) are displayed on a large 240x128 graphic display provided with backlight. If this display is
61
hard to read, the contrast can be adjusted by acting with a small screwdriver into the hole on the frontal panel
marked with the symbol.
The main screen is similar to the one in figure below. It may change depending on the transmitter, for instance
depending on the number of AMs and unbalancing.
Alarm Window
The alarm window may contain three icons indicating anomalies in the
operation of the transmitter.
The first icon on the left represents the status of the Interlock. If there is no
Interlock alarm, thus the switches chain is closed, the icon is a closed
door. In case of Interlock alarm, it is a blinking open door. In case the
Interlock is disabled, the icon will not be displayed at all.
The second icon, in the middle, refers to the status of the transmitter fans
and can be a still fan (fans aren't rotating) or a moving one (fans are rotating).
It is important to note that this icon represents the status of the FANS
CONTROL contact located on the rear panel, which indicates the actual
work (rotation) of the fans rather than the fact that they are powered or
not. In other words, it is possible that the fans are powered but, for some
anomaly, are not working correctly. In this case the icon is a still fan blinking.
The third icon, on the right, indicates a generic alarm. It is not displayed if
the AC is not detecting any malfunctioning condition, while it is displayed
as a bell in case of any alarm condition. If the alarm condition ends, the bell
blinks to indicate that something happened previously. It stops blinking if
the alarms list (Log) is accessed to check the occurred events.
Date and time window
The AC is provided with an internal clock with a backup battery placed
on the display board. The date is used to associate each event in the log to
the exact time at which it occurred. The time can be set from the Settings
menu. The AC synchronizes all of the AMs so that all of them display the
same time.
62
Temperature and frequency window
The temperature shown on the display of the AC is the internal temperature
of the device and can be considered as a good estimation of the temperature
inside the rack. The indication of the frequency is only present for some
transmitters, and allows to keep into consideration the different gains of
directional couplers with frequency. It can be set from the Settings menu.
RF powers window
This window shows the measures of the RF powers in antenna and the
unbalancing of the combiners, if any. The number of monitored powers,
especially unbalancing, changes depending on the transmitter. Each power
has an alarm upper threshold, beyond which the relevant indication starts
blinking. This window also shows the kind of measures, which can be
either average quadratic power (RMS, usually used for digital transmitters)
or peak envelopment power (PEP, usually used in analogue transmitters).
Main window
The main window contains the picture and a list of the AMs, numbered in
series starting from 1. Next to each number of the list, the ON/OFF status
of the module is displayed. If any anomaly prevent the correct
communication between the AC and a module, the relevant number would
blink and no status indication would appear.
The arrow buttons allow to move the cursor onto any of the AMs of the
transmitters and on the menu entries Alarm List and Settings.
Pressing the RET button while the cursor is on an AM, all of the monitored
parameters of that module are displayed. Each amplifier has two
associated screens called RF Powers and Power Supply: the first shows
the RF powers and the temperature of the amplifier; the second contains
the parameters of the power supply (voltages and currents). Note that
if the module doesn't communicate correctly with AC, all of the fields
are blank. To go to the next or previous screen press arrow buttons.
Press ESC to return to the main menu.
Alarm list
By pressing the RET button on the Alarm List entry in the main window,
the whole display shows the event list (log) of the transmitter. Each page of
this list contains 5 events sorted in reversed chronological order (the most
recent event is the first in the list), and a maximum of 26 pages are available
63
(130 events). If the list is full and a new event occurs, the oldest event in
the list is deleted to make free space to the new one.
Each event has an associated number and contains date and time, concerned
module and description of the event. If the event refers to an alarm condition,
a bell icon is displayed on the right. The pages of the list can be scrolled
using the arrow buttons. Press ESC to return to the main window. To
delete all events in the log, press the ESC and RET buttons at the same
time. Make sure to check all events of the log before clearing it.
Settings
The settings window allows to set some of the operating parameters of the
AC. It only covers a portion of the display area, so that the user can keep
the alarm and RF powers window under control.
The Settings menu is composed by a series of parameters which can be
displayed and/or changed. Use the arrow buttons to select a parameter
and press the RET key to open the relevant screen. The display only shows
8 items at any given time: press the DOWN button while the cursor is on
the last displayed item to scroll the menu and show the next one. The UP
button works in the same way if used on the first displayed item of the list.
Press the ESC key to return to the main window. Note that the items
displayed may vary depending on the transmitter and the AC version.
If the selected parameter can be modified, use the arrow buttons to change
its value and the RET one to confirm the change. It is possible to cancel
the change and restore the original value by pressing the ESC button. If
the parameter cannot be modified, it is possible to press ESC to return to
the Settings menu. All the settings of the menu are described below.
Interlock
The AC monitors continuously the status of the Interlock and switches off
the transmitter in case of alarm, until it ends. This function may be disabled
by the Interlock setting menu.
Frequency (only for some transmitters)
In some transmitter the AC keeps into consideration the different coupling
effect of the directional coupler, used to measure the RF powers, compared
to the variation of the frequency. This screen allows to change the frequency
of the antenna signal, setting the frequency of the video carrier in case of
analogue TV transmitters or the middle band frequency in case of digital
or FM transmitters.
64
Buzzer
The AC uses the buzzer in case of malfunctioning or situations in which the
attention of the user is required. During tests or maintenance it may be
useful to disable the buzzer using this menu.
Generally speaking, it is better to reactivate it during the normal operation
of the transmitter..
Log Mode
The log is a very important feature as it allows the user to know the details
of the alarms and events occurred to the transmitter, even if it is unattended.
It has two modes between which the user may choose. The “Alarms &
Events” mode logs all alarm conditions as well as events such as the local
or remote on/off status changes.
The “Only alarms” mode only logs alarm conditions. It is generally better
to use the Alarms & Events mode, because the log has a higher level of
detail. The “Only alarms” mode should only be used for testing and
maintenance operations, in order to prevent the log to be filled by events
of minor importance.
Remote
Using the RS232 connection on the front panel or the RS485 one on the
rear panel, the AC may be completely controlled from remote, using a
dedicated software. This function may be disabled from the Remote settings
menu. If the remote control is disabled, the parameters of the transmitter
can still be remotely read, but not changed. The REMOTE LED on the
front panel is lit when remote control is enabled, and unlit otherwise.
RS232/RS485
The transmitter can be remotely controlled through the RS232 connection
on the front panel or the RS485 one on the rear panel. It is not possible to
use both connections at the same time, and the desired one must be chosen
from this menu.
Working Timer
The Working Timer counts the seconds in which the transmitter has been
working, i.e. switched on and powered. This screen also allows to reset
the Timer.
65
Thresholds
Each RF power monitored by the AC should be below a given maximum
threshold. In case a value is beyond the threshold, the AC indicates an
alarm condition. The values of the thresholds are displayed in the Thresholds
menu.
Clock/Date
This menu is used to set the current date and time. Once the changes are
confirmed by pressing the RET button, the AC synchronizes all of the
AMs of the transmitter.
Backlight
The display is provided with a backlight. A Screensaver may be enabled
to make the lamp last longer. When it is, the light is automatically switched
off after 8 minutes without any button being pressed, and it is switched on
again as soon as any button is pressed.
Release
The Release menu shows the kind of the transmitter, the version of the AC
firmware and the serial number of the equipment.
Rms/Peak
The Amplifier Control can detect Peak and RMS RF powers. Tbe Peak
power is used in analog transmitter (FM or TV), the RMS power is used
in digital transmitter.
The user can choose the power detection mode by using the RMS/Peak
menu. In dual-mode (analog and digital) transmitter, the switch between
RMS and Peak power detection can be linked to an ex-ternal input signal
on TELEMEASURES port (see Rear Panel paragraph for more
information). Se-lect TLC item in the RMS/PEak menu to enable this
feature.
66
Section 4 - Diagram
Contents:
- APG012C AMPLIFIER CONTROL Cable Diagram
- APG012C AMPLIFIER CONTROL Component list
- Modules description
67
68
Component list
APG012C
Elettronika Code
Description
Qty
02018
02035
02695
02699
02700
02740
02741
02843
02855
02856
02880
05504
05525
07524A
07925
07926
08500
C0814
CON0145
CON0153
DET0313
E0031
PAN0066
SCH0110BR0
SCH0152AR0
SCH0239AR0
SCH0241AR0
V0761
BNC CONNECTOR FOR RG174 CABLE
BNC CONNECTOR FOR RG316 CABLE
DB9 CONNECTOR FOR IU008059 CABLE
10 WIRE FEMALE CONNECTOR
16 WIRE FEMALE CONNECTOR
FEMALE PAN
COVER PAN
2 POLES SHIELDED SOCKET
26 WIRE FEMALE CONNECTOR
DB25 FEMALE CONNECTOR
10A GREEN SOCKET
MECHANICAL DETAIL
MECHANICAL DETAIL
SWITCH
PVC PROTECTION
PVC PROTECTION
RG174 50Ω CABLE
SHIELDED COPPERADHESIVE
CON0145R1 BOX
CON0153AR0 MECHANICAL DETAIL
DET0313R0 3-4U HANDLES
S-60-24 SWITCHING POWER SUPPLY
PAN0066AR0 FRONT PANEL
ANALOG INPUT BOARD
220VAC SWITCHING BOARD
CONTROL BOARD AND DISPLAY
IN/OUT DIGITAL BOARD
BLACK PLASTIC TAP
0.30
0.50
69
This page is intentionally blank
70
CONTROL AND DISPLAY BOARD
SCH0239AR0
DESCRIPTION
SCH0239A is the Main Board of the Amplifier Control. It could be considered the core of the equipment.
This board is based on a powerful 16 bit microcontroller that runs an optimized ad-hoc firmware for the transmitter.
The firmware can be simply upgraded by means of RS232 (see the paragraph below for more details).
On the board a small DC/DC power supply is present that converts the +24Vdc input signal to +5Vdc output signal
used for almost all the integrated circuits.
The microcontroller gathers all the informations from AMs (by RS485 bus), antenna directional coupler, interlock
chain, fans and so on. It makes these informations available on the local interface (display and leds) and remote
(RS232, RS485 and TLM).
The analog inputs are conditioned in order to make a good monitoring of the RF powers, RMS and PEP type. The
input gain is variable by a trimmer and should be calibrated as explained below. The internal A/D converter of the
microcontroller makes the sampling and converts these signals into digital.
The LCD has a CCFL backlight that is fed by the inverter INV1 (see the component layout of the board).
All the other boards inside the AC are connected to the display board.
- Dip-switches
On the display board two series of dip-switches are present (see SW1 and SW2 on the component layout).
Switches on SW1 is not used. Switches on SW2 must be set in the following way:
Not Used
Not Used
Not Used
OFF
OFF
ON
ON
ON
FIRMWARE UPDATE
The microcontroller is provided with a built-in Flash memory containing the firmware. The firmware can be
updated with a later version without removing the apparatus from the rack and/or replacing the chip.
To upgrade it, connect a PC to the RS232 socket on the front panel of the apparatus by means of a cable
71
DB9 male - DB9 female (pin-to-pin).
Launch on the PC the EKAFlash application, select the serial port in use on the PC, choose the update file by
pressing the “...” key and click on Download button.
Eventually, turn off the AC from the main switch and then turn it on again. The upgrade of the firmware begins
on the EKAFlash window. The figure below shows this window while a firmware is being updated.
The EKAFlash window while updating a firmware
POWER CALIBRATION
FWD Power calibration
Disconnect the antenna and connect a wattmeter to the antenna connector. Give power to the amplifier until
you will read on the wattmeter a value corresponding to the equipment nominal power. Then turn the trimmer
A (see Bottom Component layout), it is a variable resistor used to adjust the A analog input measure until
you read approximately the same FWD power value on the display.
REF Power calibration
Disconnect the antenna and connect a wattmeter to the antenna connector. Connect the Forward power
monitoring cable to the Reflected power input connector. Give power to the amplifier until you will read on the
wattmeter a value corresponding to 10% of the equipment nominal power. Then turn the trimmer B (see
Bottom Component layout), it is a variable resistor used to adjust the B analog input measure until you read
approximately the same REF power value on the display.
UNB Calibration
Connect a wattmeter before the dummy load. Give power to the amplifier then turn off one slave module: you
will read an amount of unbalancing power on the wattmeter. Turn the trimmer C (see Bottom Component
layout), it is a variable resistor used to adjust the C analog input measure until you read approximately the
same UNB power value on the display.
72
SCH0239AR0 Top layer Component layout
73
SCH0239AR0 Bottom layer Component layout
74
SCH0239AR0 COMPONENT LIST
Part Name/Number
Description
Qty.
Comps.
Page 1/2
BATT BH001RB 3093_90
BZ AI-155 03705
CC 100nF-S 01065C
03093 03090 BATTERY HOLDER
03705 5VDC BUZZER
01065C Y5V 1206 COND
33
CC 15pF-S 01088
CC 1nF-S 01096
01088 SMD 1206 COND
01096 SMD 1206 COND
20
CC 1uF100V-S 01760A
CC 220pF-S 01093
CC 47pF-S 01100
CE 10uF16V-S
CE 1uF50V-S 01763A
CE 220uF50V LOW ESR
CE 47uF35V-S 01790A
CE 47uF50V-S 01791C
D 1N4148-S 03002
D 50WQ06FN
D BAS85-S
D BAT54S
DIS WG240128B
DL KA-3528SGC 03057
DL LEDG3 03053
DL LEDR3 03058
DL LEDY3 03051
IC 24LC64 04815
IC 74HC00-S 4762A
IC 82B715-S 04734A
IC CD4053BC-S 04710A
IC LM2596S-5.0
IC LM75-S 00668
IC LMC6482-S
IC LMC6484-S
IC M41T56 04611
IC MAX232-S 04804B
IC MAX3080-S 04770
IC MAX3080-S N.M.
IC MAX942CSA-S
IC MB90F543PF
IC MPC100T-450I-TT
IC ULN2003A 4870
IND MS85 10uH-S
IND T100uH-1.8A 4958
01760A Y5V 1206 COND <<50 V>>
01093 SMD 1206 COND
01100 SMD 1206 COND
01626B TANT. ELETTR SMD CO
01763A ELETTR SMD COND
1799A ELETTR SMD COND LOW ESR
01790A ELETTR SMD COND
01791C ELETTR SMD COND
03002 SMD DIODE
03019A SMD DIODE SCHOTTKY 5,5A
03024 SMD DIODE SCHOTTKY
03199 SMD SCHOTTKY DIODE A-K T
03083 240/128 DOT MATRIX LCD
03057 GREEN SMD LED DIODE
03053 GREEN LED DIODE 3mm
03058 RED LED DIODE 3mm
03051 YELLOW LED DIODE 3mm
04815 SMD INTEG CIRCUIT
4762A SMD INTEG CIRCUIT
04734A SMD INTEG CIRCUIT
04710A SMD INTEG CIRCUIT
04580 SMD INTEG CIRCUIT
00668 SMD INTEG CIRCUIT
04632 SMD INTEG CIRCUIT
04634 SMD INTEG CIRCUIT
04611 SMD INTEG CIRCUIT
04804B SMD INTEG CIRCUIT
04770 SMD INTEG CIRCUIT
NOT MOUTED SMD INTEG CIRCUIT
04572 SMD INTEG CIRCUIT
04596 SMD INTEG CIRCUIT
04577 SMD INTEG CIRCUIT
04870 SMD INTEG CIRCUIT
04948 INDUCTOR 2,7A
04958 TOROIDAL-STORAGE CHOKES
BATT1
BZ1
C10, C15, C17-19, C22, C25, C28, C38,
C45, C49-52, C55, C62-63, C68-69, C78,
C80-85, C87-88, C90, C92-95
C74-75
C12-14, C31-33, C42-43, C53-54, C56-58,
C60-61, C66, C76-77, C79, C86
C21, C23, C37, C64-65, C67, C71-72
C2-9
C20, C30, C35-36, C40-41, C48, C59
C24, C26-27, C29, C34, C39, C46-47
C89, C91
C16, C44, C70, C73
C11
C1
D12-13, D17, D19
D9
D1-8
D10-11, D14-16, D18
LCD1
DL1
DL3
DL2, DL4, DL6-7
DL5
IC7
IC19
IC17
IC12
IC14
IC8
IC20
IC2-5
IC6
IC16
IC22
IC18
IC9-11, IC13
IC15
IC21
IC1, IC23
L1
L2
75
Part Name/Number
Description
Qty.
Comps.
INV IN-D43A-5V
J DB9_F-0° LT
J FC-10P 02697-02699
J FC-16P 02701-02700
J FC-26P 02855-02854
J PAN2 02739
J PAN2 02739-40-41
J PAN3 02707
J PAN3 NOT MOUNTED
J SCREWCONN2 02853
JU JUMP3 02707-02742
R 100R-S 00029A
R 10K-S 00053A
03085 DC/AC MODULE
02794 PCB CONNECTOR DB9 LONG T
02697+02699 PCB CONNECTOR POL
02701+02700 PCB CONNECTOR POL
02855+02854 PCB CONNECTOR POL
02739 PCB CONNECTOR
02739+02740+02741 PCB CONNECTO
02707 PCB CONNECTOR
NOT MOUNTED PCB CONNECTOR
02853 PCB SCREW CONNECTOR
02707+02742 MASCHIO PAN3
00029A RES 1/4W 5% SMD 1206
00053A RES 1/4W 5% SMD 1206
37
R 120R-S 00030A
R 1K0-S 00041A
R 1K5-S 00043A
R 22K-S 00057A
00030A RES 1/4W 5% SMD 1206
00041A RES 1/4W 5% SMD 1206
00043A RES 1/4W 5% SMD 1206
00057A RES 1/4W 5% SMD 1206
11
R 2K2-S 00045A
R 330R-S 00035B
R 33R-S 00023A
R 470K-S 00073A
R 470R-S 00037A
00045A RES 1/4W 5% SMD 1206
00035B RES 1/4W 5% SMD 1206
00023A RES 1/4W 5% SMD 1206
00073A RES 1/4W 5% SMD 1206
00037A RES 1/4W 5% SMD 1206
30
R 4K7-S 00049A
R 820R-S 00040A
RL 30.22.24 07569
RV 10K-S-H 00715
RV 1M-3266X
SW SWITCH-4DIP 90°
SW SWITCH-8DIP
T 06086 N 7630 7632
TR BC848 03457
XTAL 32.768k-S 05146
XTAL 4MHz-S 05101A
00049A RES 1/4W 5% SMD 1206
00040A RES 1/4W 5% SMD 1206
07569 RELE
00715 VARIABLE RESISTOR
00815 VARIABLE RESISTOR
07531A PCB DIP SWITCH 90°
07530A PCB DIP SWITCH SMD
7630 7632 KTI06086 PULSANTE 2
03457 NPN SMD TRANSISTOR
05146 QUARTZ
05101A QUARTZ
INV1
J6
J11, J13
J12, J14
J10
J4
J5
J1-3
J8-9
J7
JP1-4
R109, R114, R119-121, R123
R22-27, R30, R32-33, R40, R47, R50, R57,
R68, R81-82, R85, R90-101, R105-108,
R116, R118, R122, R124
R112-113
R46, R54, R87-88, R104
R110-111
R18, R20-21, R28, R34, R36, R38-39, R41,
R43-44
R19, R35, R37, R42, R45, R53, R59-60
R89, R103
R86, R102
R48-49, R51-52, R55-56, R58, R65
R10-17, R29, R31, R61-64, R66-67,
R69-80, R83-84
R117
R9
RLY1-5
R115
R1-8
SW1
SW2
T1-4
TR1
XTAL1
XTAL2
76
Page 2/2
ANALOG INPUT BOARD
SCH0110BR0
DESCRIPTION
SCH0110B is a simple board with 8 BNC connectors (only some of them can be mounted depending on the
transmitter). It routes all the 8 analog input signals (usually for power monitoring) on a IDC connector for
simple wiring with the display board.
SCH0110BR0 Component layout
SCH0110BR0 COMPONENT LIST
Part Name/Number
Description
Qty.
Comps.
CC 1206 N. M.
CC 1nF-S 01096
J BNC-90G-PCB 2034
J BNC-90G-PCB 2034
J FC-16P 02701-02700
R 0R0-S 00001
R 1206 N. M.
N. M. SMD 1206 CAPACITOR
01096 SMD 1206 CAPACITOR
02034 PCB CONNECTOR
N. M. BNC-90G
02701+02700 PCB CONNECTOR POL
00001 RES 1/4W 5% SMD 1206
N. M. RES 1/4W 5% SMD 1206
17
18
Z MICRO SOIC 8P N.M.
SMD INTEG CIRCUIT NOT MOUNTED
C4-20
C1-3
J1-3
J4-8
J9
R13, R15, R17, R19, R21, R23
R1-12, R14, R16, R18, R20, R22
R24
IC1-3
77
220VAC SWITCHING BOARD
SCH0152AR0
DESCRIPTION
The SCH0152A board is based on three relays, each for one power connector (DRIVER1 POWER,
DRIVER2 POWER, FANS POWER). The board is directly connected to the mains power supply and
controlled by the SCH0239A (Control Board). When the microcontroller on SCH0239A decides to switchon the DRIVER1, for example, it activates the regarding relay on SCH0152A, connecting the main power
supply with the DRIVER1 POWER.
SCH0152AR0 Component layout
SCH0152AR0 COMPONENT LIST
Part Name/Number
Description
Qty.
Comps.
CC 2nF2 2kV 01045A
D 1N4148 03001
FUSE OMEGA C1034
J CON HD515V/05-6PVE
J FC-10P 02697-02699
J VASCHETTA IEC
JU JUMP2 02739-02742
RL 40.31.24
01045A CERAMIC CAPACITOR
03001 DIODE
FUS00008 FUSE-HOLDER 5x20 D
02883 + 02884 PANDUIT PCB CONN
02697+02699 PCB CONNECTOR POL
02879 VASCHETTA FEMALE PCB
02739+02742 MALE PAN2
7567C RELE
C1-3
D1-6
F1
J1
J9
J6-8
JP1
RLY1-3
78
IN/OUT DIGITAL BOARD
SCH0241AR0
DESCRIPTION
Several connectors are present on SCH0241A: 2 D-SUB9F for the RS485 AMs bus, 1 D-SUB9F for
RS485 dedicated to the remote control, 2 BNC for Interlock and Fans control, 2 dual-poles connectors for
+24Vdc power supply output, 1 fuse-holder that accepts the fuse for +24Vdc power signal.
As the other boards, SCH0241A is connected with display board. Also, it is directly connected to the output
of the internal AC/DC power supply (+24Vdc).
SCH0241AR0 Component layout
SCH0241AR0 COMPONENT LIST
Part Name/Number
Description
Qty.
Comps.
DZ 5V1 03109
FUSE OMEGA C1034
J BNC-90G-PCB 2034
J DB9-90G 02797
J FC-16P 02701-02700
J SCREWCONN2 02853
J TESTP2.5mm 07912
R 0R0-S 00001
R 10K 0053
R 1K0 0041
03109 ZENER DIODE
FUS00008 PORTA FUSIBILE 5x20 D
02034 PCB CONNECTOR
02797 PCB CONNECTOR
02701+02700 PCB CONNECTOR POL
02853 PCB SCREW CONNECTOR
07912 TEST POINT
00001 RES 1/4W 5% SMD 1206
0053 RES 1/4W 5%
0041 RES 1/4W 5%
DZ1
F1
J2-3
J4-6
J1
J7
J8-11
R3-9
R1
R2
79
S-60-24 SWITCHING POWER SUPPLY
E0031
MAIN FEATURES
- Universal AC input / Full range
- Protections: Short circuit / Over load / Over voltage
- Cooling by free air convection
- 100% full load burn-in test
- Fixed switching frequency at 50kHz
MECHANICAL SPECIFICATION
152.5
ASSIGNMENT
AC/L
AC/N
FG
DC OUTPUT -V
DC OUTPUT +V
65
9.5
3.5
PIN N°
2-
M3
3 .5
4.5
24
78
159
80
97
84.5
8.2
TECHNICAL CHARACTERISTICS
MODEL
DC VOLTAGE
S-60-15
S-60-24
15V
24V
RATED CURRENT
4A
2.5A
CURRENT RANGE
0 ~ 4A
0 ~ 2.5A
RATED POWER
60W
60W
RIPPLE & NOISE (max.) Note 2
150mVp-p
150mVp-p
VOLTAGE ADJ. RANGE
13.5 ~ 16.5V
21.6 ~ 26.4V
VOLTAGE TOLERANCE Note 3
± 1.0%
± 1.0%
OUTPUT
LINE REGULATION
± 0.5%
± 0.5%
LOAD REGULATION
± 0.5%
± 0.5%
SETUP, RISE, HOLD TIME
300ms, 50ms, 80ms / 230VAC
VOLTAGE RANGE
88 ~ 264VAC
FREQUENCY RANGE
47 ~ 63Hz
EFFICIENCY (Typ.)
77%
800ms, 50ms, 10ms / 115VAC at full load
120 ~ 370VDC
79%
INPUT
AC CURRENT
24A/115VAC
INRUSH CURRENT (Max.)
COLD START 30A/115VAC
LEAKAGE CURRENT
<3.5mA/240VAC
1A/230VAC
60A/230VAC
105 ~ 150% rated output power
OVER LOAD
Protection type: Hiccup mode, recovers automatically after fault condition is removed
PROTECTION
17.25 ~ 20.25V
27.6 ~ 32.4V
OVER VOLTAGE
Protection type: Hiccup mode, recovers automatically after fault condition is removed
ENVIRONMENT
SAFETY & EMC
(Note 4)
OTHERS
WORKING TEMP.
-10 ~ +60°C (Refer to output load derating curve)
WORKING HUMIDITY
20 ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY
-20 ~ +85°C, 10 ~ 95% RH
TEMP. COEFFICIENT
± 0.03%/°C (0 ~ 50°C)
VIBRATION
10 ~ 500Hz, 2G 10min./1cycle, period for 60min. each along X, Y, Z axes
SAFETY STANDARDS
UL1012, UL1950, TUV EN60950 Approved
WITHSTAND VOLTAGE
I/P-O/P:3KVAC
ISOLATION RESISTANCE
I/P-O/P, I/P-FG, O/P-GD:100M Ohms/500VDC
EMI CONDUCTION & RADIATION
Compliance to EN55022 (CISPR22) Class B
HARMONIC CURRENT
Compliance to EN61000-3-2,-3
EMS IMMUNITY
Compliance to EN61000-4-2,3,4,5,6,8,11; ENV50204, EN55024, Light industry level, criteria A
MTBF
316.2K hrs min.
DIMENSION
159*97*38mm (L*W*H)
PACKING
0.51kg; 24pcs/13.1kg/0.7CUFT
I/P-FG:1.5KVAC
O/P-FG:0.5KVAC
MIL-HDBK-217F (25°C)
81
82

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