R.V.R. Elettronica PTRL-NV/2/S3 User manual

Manufactured by R.V.R. Elettronica - Italy
TECHNICAL AND MAINTENANCE MANUAL
MANUALETECNICOEDIMANUTENZIONE
PTRL-NV/2/S3
PTRL-NV/2/HP/S3

R.V.R. ELETTRONICA S.r.l. (BO) Pag. 2
PTRLNV/2/S3 and PTRL-NV/2/HP/S3 - Technical and Maintenance Manual
PTRL-NV/2/S3 & PTRL-NV/2/
HP/S3
Stereo Studio Transmitter
Link 1400/2600 MHz
Technical and Maintenance Manual
Manuale Tecnico e di
Manutenzione
English Pag. 3

R.V.R. ELETTRONICA S.r.l. (BO) Pag. 3
PTRLNV/2/S3 and PTRL-NV/2/HP/S3 - Technical and Maintenance Manual
INDEX
Preliminary Instructions and Warranty Information Pag. 5
Safety Regulations Pag. 7
SECTION 1
General Description Pag. 10
Electrical Specifications (Table A) Pag. 12
Dimensional & Environmental Specifications (Table B) Pag. 14
SECTION 2
Electrical Description Pag. 15
Front Panel View Description Pag. 18
Front Panel View (Fig. 1) Pag. 20
Rear Panel View Description Pag. 21
Rear Panel View (Fig. 2) Pag. 23
Top View Description Pag. 24
Top View (Photo 1) Pag. 25
Bottom View Description Pag. 26
Bottom View (Photo 2) Pag. 27
Block Diagram (Fig. 3) Pag. 28
SECTION 3
Installation Procedure Pag. 29
Recommend Test Equipment (Table C) Pag. 33
SECTION 4
Maintenance Pag. 34
SECTION 5
Calibration Procedure of Modules Pag. 37
SECTION 5
Aligment of the Radio Link Pag. 43

R.V.R. ELETTRONICA S.r.l. (BO) Pag. 4
PTRLNV/2/S3 and PTRL-NV/2/HP/S3 - Technical and Maintenance Manual
APPENDIX A
Circuit Diagram, Bills of Material and Layouts Pag. 49
Main Card Pag. 50
V.C.O. Card Pag. 58
C.P.U. Pag. 63
Modmeter Card Pag. 73
Anameter Card Pag. 78
Power Supply Pag. 86
1W R.F. Power Amplifier Pag. 97
2W R.F. Power Amplifier Pag. 102
5W R.F. Power Amplifier Pag. 106
Con-PA Card Pag. 111
1W R.F. Power Amplifier's Low Pass Filter Pag. 115
Doubler Pag. 119
Inverter Card Pag. 123
Audio Input Card Pag. 127
Stereo Coder Card Pag. 131

R.V.R. ELETTRONICA S.r.l. (BO) Pag. 5
PTRLNV/2/S3 and PTRL-NV/2/HP/S3 - Technical and Maintenance Manual
PRELIMINARY INSTRUCTIONS AND WARRANTY INFORMATION
Please observe safety precautions when handling this unit. This equipment
contains dangerous currents and high voltages.
This manual is written as a general guide for those having previous knowledge
and experience with this kind of equipment. It is not intended to contain
a complete statement of all safety warnings which should be observed by
personnel in using this or other elettronic equipment.
R.V.R. doesn't assume responsability for injury or damage resulting from
improper procedures or practices by untrained/unqualified personnel in the
handling of this unit.
Please observe all local codes and fire protection standards in the
operations of this unit.
CAUTION: always disconnect power before opening covers or removing any part
of this unit. Use appropriate grounding procedures to short out capacitors
and high voltage points before servicing.
Any damage to the goods must be reported to the carrier in writing on the
shipment receipt. Any discrepancy or damage discovered subsequent to
delivery, shall be reported to R.V.R. within five (5) days from its receipt.
R.V.R. extends to the original end-user purchaser all original manufacturers
warranties which are transferable and all claims are to be made directly
to R.V.R. per indicated procedures.
All manufacturers warranties will be supported by R.V.R. to ensure precise
and speedy service where possible.
R.V.R. shall not be liable for any damage of whatsoever nature, arising out
of or in connection with the product or its use thereof.
R.V.R.'s warranty shall not include:
a. Re-shipment of the unit to R.V.R. for repair purposes
b. Any unauthorized repair/modification
c. Incidental/consequential damages as a result of any defect
d. Nominal non-incidental defects
e. Re-shipment costs or insurance of the unit or replacement
units/parts
Warranty shall come into force from invoice date and for the period of
the manufactures warranty.

R.V.R. ELETTRONICA S.r.l. (BO) Pag. 6
PTRLNV/2/S3 and PTRL-NV/2/HP/S3 - Technical and Maintenance Manual
To claim your rights under this warranty:
a. Contact the dealer or distributor where you prchased the unit. Describe
the problem and ask if he has an easy solution. Dealers and Distributors
are supplied with all the information about problems that may occur
and usually they can repair the unit quicker than what the manufacturer
could do. Very often installing errors are discovered by dealers.
b. If your dealer cannot help you, contact R.V.R. in Bologna and explain
the problem. If it is decided to return the unit to the factory, R.V.R.
will mail you a regular authorization with all the necessary
instructions to send back the goods.
c. When you receive the authorization, you can return the unit. Pack it
carefully for the shipment, preferably using the original packing and
seal the package perfectly. The customer always assumes the risks of
loss (i.e., R.V.R. is never responsible for damage or loss), untill
the package reaches R.V.R. premises. For this reason, we suggest you
to insure the goods for the whole value. Shipment must be effected
C.I.F. (PREPAID) to the address specified by R.V.R.'s service manager
on the authorization. DO NOT RETURN UNITS WITHOUT OUR AUTHORIZATION
AS THEY WILL BE REFUSED. Be sure to enclose a written technical report
where mention all the problems found and a copy of your original invoice
establishing the starting date of the warranty.
Replacement and warranty parts may be order from the following address. Be
sure to include the equipment model and serial number as well as part
description and part number.
R.V.R. Elettronica S.r.l. - Broadcasting Equipment -
Via del Fonditore, 2/2c
Zona Roveri
40138 Bologna - Italy
International Phone: +39 - 51 - 6010506
FAX Number: +39 - 51 - 6011104
R.V.R. reserves the right to modify the design and specifications of the
equipment in this manual without previous notice.

R.V.R. ELETTRONICA S.r.l. (BO) Pag. 7
PTRLNV/2/S3 and PTRL-NV/2/HP/S3 - Technical and Maintenance Manual
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
hazardous 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.
R.V.R. ELETTRONICA 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

R.V.R. ELETTRONICA S.r.l. (BO) Pag. 8
PTRLNV/2/S3 and PTRL-NV/2/HP/S3 - Technical and Maintenance Manual
TreatmentofelectricalShock
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, IF NOT BREATHING,
OPEN AIRWAY BEGIN ARTIFICIAL
BREATHING
LIFT UP NECK, TILT HEAD,
PUSH FOREHEAD BACK, PINCH NOSTRILS,
CLEAR OUT MOUTH IF NECESSARY, MAKE AIRTIGHT SEAL,
OBSERVE FOR BREATHING. 4 QUICK FULL BREATHS.
REMEMBER MOUTH TO MOUTH
RESUSCITATION MUST BE
COMMENCED AS SOON AS
POSSIBLE.
C CIRCULATION
CHECK CAROTID PULSE DEPRESS STERNUM 1 1/2" TO 2"
IF PULSE ABSENT, APPROX. 80 SEC. : ONE RESCUER, 15 COMPRESSIONS,
BEGIN ARTIFICIAL 2 QUICK BREATHS.
CIRCULATION APPROX. 60 SEC. : TWO 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.
a. Keep them warm.
b. Keep them as quiet as possible.
c. Loosen their clothing (a reclining position is recommended).

R.V.R. ELETTRONICA S.r.l. (BO) Pag. 9
PTRLNV/2/S3 and PTRL-NV/2/HP/S3 - Technical and Maintenance Manual
FIRST-AID
Personnelengagedintheinstallation,operation,maintenanceor
servicingofthisequipmentareurgedtobecomefamiliarwithfirst-aid
theoryandpractices.Thefollowinginformationisnotintendedtobe
acompletefirst-aidprocedure,itisbriefandisonlytobeusedas
areference.Itisthedutyofallpersonnelusingtheequipmenttobe
preparedto giveadequateEmergencyFirstAidandtherebyprevent
avoidablelossoflife.
Treatment of electrical Burns
1) Extensive burned and broken skin.
a. Cover area with clean sheet or cloth.
(Cleanest available cloth article).
b. Do not break blisters, remove tissue, remove adhered particles
of clothing, or apply any salve or ointment.
c. Treat victim for shock as required.
d. Arrange transportation to a hospital as quickly as possible
e. If arms or legs are affected 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)
a. Apply cool (not ice cold) compresses using the cleanest available
cloth article.
b. Do not break blisters, remove tissue, remove adhered
particles of clothing, or apply salve or ointment.
c. Apply clean dry dressing if necessary.
d. Treat victim for shock as required.
e. Arrange transportation to a hospital as quickly as possible.
f. If arms or legs are affected keep them elevated.

R.V.R. ELETTRONICA S.r.l. (BO) Pag. 10
PTRLNV/2/S3 and PTRL-NV/2/HP/S3 - Technical and Maintenance Manual
CHAPTER1
GENERAL DESCRIPTION
1.1 MECHANICAL DESCRIPTION
The PTRL-NV/2/S3 (and PTRL-NV/2/HP/S3) is housed in a 3U, 19" rack-
mounting chassis comprising a number of interconnected modules mounted
internally on the base of the unit.
This allows easy removal and replacement of each module.
The power output control, audio output level control and meters for
various operating parameters are situated on the front panel.
Mains power and R.F. output connectors are mounted on the rear panel.
1.2 ELECTRICAL DESCRIPTION
The PTRL-NV/2/S3 (and PTRL-NV/2/HP/S3) is a hight quality,
broadband, FM Stereo transmitter with a standard output power of 1W or
2W (5W for the PTRL-NV/2/HP/S3).
The transmitter is microprocessor-controlled and synthesized with steps
of 100KHz in the 1400-2600 MHz band.
The operating frequency is governed by a thermally compensated reference
oscillator working within a phase locked loop (PLL).
The transmitter incorporates a stereo coder with an excellent stereo
separation and a low level of harmonic distorsion, and provides the input
for two SCA (RDS) signals.
A front switch allows operations in "STEREO" or "MONO/MPX"; in the latter,
the coder is excluded and the "RIGHT" input is used as a "MONO" input,
the "LEFT" input as a "WIDEBAND COMPOSITE INPUT". The low intermodulation
and distorsion values (typ. 0.03%) aand the high signal to noise ratio
(typ. 80 dB) are the main features of this coder.
The transmitter will attain frequency lock within a maximum of 30 seconds.
The operating bands is 50MHz depending upon the application.
The final stage is fully protected against any level of VSWR. Furthermore,
a 15 KHz low-pass filter is provided which may be inserted in the mono
or MPX input.
1.3 METERS AND INDICATORS
The transmitter's operating parameters can be measured with the
analog multimeter (17 Fig.1) and the led bar-graph display (3 Fig.1)
situated on the front panel.
The measurament being made by the analog multimeter is indicated by a
led indicator (14 Fig.1) and selectable via the corresponding control
(13 Fig.1).
Peak deviation can be measured with the bar-graph display (3 Fig.1) with
a resolution of 5%.
The five-figure display (12 Fig.1), mounted centrally, indicates the
operating frequency selected by the UP (11 Fig.1) and DOWN (8 Fig.1)