Pineapple Technology UTX2KULTRA 2 kW UHF Analog TV Transmitter User Manual

Pineapple Technology, Inc. 2 kW UHF Analog TV Transmitter

User Manual

UTX2K ULTR
A
INSTRUCTION MANUA
L
PINEAPPLE TECHNOLOGY, INC
PINEAPPLE TECHNOLOGY, INC.
UTX2K ULTRA Operating and Service Manual TABLE OF CONTENTS
Section l --- SAFETY NOTICES ………………………………………………………………………
…
2
** READ THIS SECTION BEFORE INSTALLATON *
*
Secton ll --- TRANSMITTER SPECIFICATIONS …………………...………………………………
…
3
Section lll --- TRANSMITTER INSTALLATION ……………………………………………………
…
5
Section lV --- TRANSMITTER TURN-ON ……………………………………………………………
…
6
Section V --- THEORY OF OPERATION
. Introduction ……………………………………………………………………………
7
B. ACDIS2 AC Main Distribution ………………………………………………………… 7
C. AC2008 Power Supply ………………………………………………………………… 7
D. PAS3 and ADP500 Performance Monitor …………………………………………
8
E. RC8 Remote Monitor and Control W/ABS …………………………………………
9
F. MA1000 Modulator ……………………………………………………………………
10
G. UDR100AC Driver ……………………………………………………………………
10
H. S3 3-Way Splitter ………………………………………………………………………
10
I. MFA2PA Dual Power Amplifier ………………………………………………………
10
J. UC3KW 3-Way Combiner ……………………………………………………………
11
K. DC3KW Directional Coupler ……………………………………………………………
11
L. BPU3K Bandpass Filter ………………………………………………………………
11
SECTION Vl --- SCHEMATIC AND PARTS LISTS
. UTX2K ULTRA …………………………………………………………......................
12
B. ACDIS2 AC Main Distribution ………………………………………………………… 14
C. UDR100AC Driver ……………………………………………………………………
16
D. MFA2PA Dual Power Amplifier ………………………………………………………
18
1. 1A0035 Status Board ………………………………………………………
…
20
2. PA1K 1KW Power Module …………………………………………………
…
21
a. U500LDA 500 W Amplifier ………………………………………
…
21
b. U250LD 250 W Amplifier ………………………………………
…
21
c. 1A0025 Power Distribution Monitor ……………………
…
21
d. 1A0018 Gain and Phase Matching Network …………
…
21
E. UC200-3 3-Way Splitter ………………………………………………………………
24
F. UC2KW3NDC 3-Way Combiner with Directional Coupler…………………………… 26
G. BPU3KW Bandpass Filter ……………………………………………………………
27
H. PAS10 and ADP500 Performance Monitor ………………………………………… 28
SECTION Vll --- RECOMMENDED ROUTINE MAINTENANCE …………………………………
…
30
SECTION Vlll --- ADJUSTMENTS AND TUNING …………………………………………………… 32
SECTION lX --- PROBLEM SOLVING / TROUBLESHOOTING …………………………………
…
34
SECTION X --- WARRANT
Y
…………………………………………………………………………… 37
SECTION Xl --- EXTENDED WARRANT
Y
…………………………………………………………… n
Section I
Safety
Notices
PINEAPPLE TECHNOLOGY, INC.
UTX2K ULTRA Operating and Service Manual l --- SAFETY NOTICES
l ---SAFETY NOTICES
** READ THIS SECTION BEFORE INSTALLATION **
SEVERE ELECTRICAL SHOCK OR BURNS MAY OCCU
R
IF THIS EQUIPMENT IS USED IMPROPERLY.
NEVER WORK ON THIS EQUIPMENT ALONE. ALWAYS HAVE ANOTHER PERSON PRESENT
WHILE WORKING ON ELECTRICAL CIRCUITS OR MOVING EQUIPMENT. COMMUNICATIONS
TO EMERGENCY SERVICES SHOULD BE AVAILABLE AT ALL TIMES.
BEFORE CONNECTING THIS EQUIPMENT TO ANY AC ELECTRICAL SOURCE READ THE
SECTION ON INSTALLATION. ALL ELECTRICAL WIRING FOR THIS EQUIPMENT MUST BE
PERFORMED BY QUALIFIED ELECTRICIANS. ALL WIRING MUST BE COMPLIANT WITH
LOCAL ELECTRICAL CODES.
POWER AMPLIFIERS AND SUPPLIES ARE HEAVY. TO INSTALL THIS EQUIPMENT IN RACKS
USE TWO (2) PERSONS TO AVOID POSSIBLE INJURIES.
NEVER OPEN THE CABINET ENCLOSURE OR UNPLUG CABLES OR WIRES WHILE THIS
EQUIPMENT IS OPERATING.
ALL SERVICE WORK MUST BE PERFORMED BY QUALIFIED TECHNICIANS ONLY
.
IF ONE IS NOT AVAILABLE LOCALLY, CONTACT PINEAPPLE TECHNOLOGY, INC. FOR
A LIST IN YOUR AREA.
Page 2
Section II
Transmitter
Specifications
THESE SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE.
PINEAPPLE TECHNOLOGY, INC.
UTX2K ULTRA Operating and Service Manual II – TRANSMITTER SPECIFICATIONS
II – UTX2K ULTRA SPECIFICATIONS
OPERATING
Power Output ………………………… 2 KW Peak Sync
100 Watts Aural
RF Output Impedance………………… 50 ohms
Frequency Range……………………… 470 – 806 MHz
Frequency Stability…………………… 1 PPM or better
Harmonic and Spurious………………... -60 db or better ref to P-sync
Power Consumption…………………… 11 KW maximum
AC Line Voltage……………………… 208 – 240 VAC Single Phase
VIDEO PERFORMANCE
Visual Frequency Response…………… +/- 1 db across the TV channel -1.25 MHz to 4.75 Mhz
relative to visual carrier.
Differential Gain…………………………… .< 7%
Differential Phase…………………………... < 10 degrees
ICPM………………………………………..< 5 degrees
Low Frequency Linearity………………….. < 15%
Group Delay……………………………….. Meets FCC Part 73 Rule
Video Input Impedance……………………. 75 ohms
Video Input Level………………………….. 1 volt p-p
Variation of Output Power…………………. < 5%
Regulation of Output Power……………….. < 5% typical
Video Signal to Noise Ratio……………….. < 45 db un-weighted
Page 3
THESE SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE.
PINEAPPLE TECHNOLOGY, INC.
UTX2K ULTRA Operating and Service Manual II – TRANSMITTER SPECIFICATIONS
AUDIO PERFORMANCE
Audio Response…………….…………. Meets FCC Pre-emphasis curve
Distortion…………………………………….< 1% THD
FM Noise…………………………............... < 50 db or better
AM Noise……………………………………< 40 db or better
AM Synchronous Noise……………………. < 40 db typical
GENERAL
Operating Temperature…………………….. -10 to +35 Degrees Celsius Ambient
+14 to +95 Degrees Fahrenheit Ambient
Altitude…………………………………….. 5,000 ft without additional cooling
Cooling Requirement………………………. Unobstructed air flow to internal cooling system should
be 2,000 CFM minimum
RF Output Connectors………………………1 5/8” EIA Flange
Weight………………………………………450 lbs
Dimensions Overall…………………………23” x 77” x 32” (W x H x D)
Page 4
Section III
Transmitter
Installation
PINEAPPLE TECHNOLOGY, INC.
UTX2K ULTRA Operating and Service Manual lll -- TRANSMITTER INSTALLATION
lll -- TRANSMITTER INSTALLATION
To ensure long and reliable trouble-free service from the UTX2K ULTRA transmitter the following steps
for installation are recommended:
1. MECHANICAL INSTALLATION: The UTX2K ULTRA was designed to be installed in a building
protected from the weather. The building should have a hard-surface floor such as concrete with a
moisture barrier. This barrier could be pressure-treated wood sub flooring which could be anchored
to the concrete and to the transmitter to make the installation earthquake resistant.
A
llow a minimum of three feet around the transmitter cabinet for service access. The top of the
transmitter should be clear for three feet above to allow the air to exhaust from the transmitter.
A
ir flow thru the transmitter is approximately 2,000 CFM. Provisions for air inlet and exhaust from
the room must allow air flow with minimal obstruction. In the event that the room temperature
exceeds 35º Celsius (95º F), cooling air must be provided so that the room temperature will no
t
exceed 35 degrees Celsius under worse case conditions.
Notice: This equipment is HEAV
Y
and must be handled by professional movers with prope
r
equipment. Any damage caused by the installers is not covered under warranty. Check to ensur
e
that installing crews have proper insurance coverage.
2. GROUNDING: Transmitter grounding is
V
ERY IMPORTANT and must be done correctly fo
r
safety and operational reasons. A typical installation may be done as follows
:
Use a heavy gauge wire such as #2 AWG stranded copper or solid copper buss one (1) inch wide
by 1/8 inch thick for connections. The bonding between the transmitter and the ground rods mus
t
be good quality and protected from corrosion. The ground wires should run over the floor and b
e
connected to the ground rods located outside the building. The wire should not go thru the concret
e
floor but over and around it.
3. AC WIRING: Wiring to the house electrical sub-panel will be routed to the AC terminal
block mounted in the back of the rack.
Connections to the AC Main should be made as follows:
--- RED and BLACK are connected to the 220 VAC.
--- WHITE WIRE is connected to NEUTRAL.
---GREEN WIRE is connected to SAFETY GROUND.
NOTICE: All wiring of this type must be done by a QUALIFIED ELECTRICIAN and mus
t
conform to LOCAL and NATIONAL wiring CODES.
Consult with your electrician to ensure that the proper breaker size is selected for the main circuit.
4.
A
NTENNA CONNECTION: The transmitter is equipped with 1 5/8" EIA flange connectors
located at the top of the rack. Conditions vary from site to site so some engineering may be
required to ensure that the antenna is receiving the correct amount of power to comply with FCC
licenses and to ensure safety from lightning, etc.
Page 5
Section IV
Transmitter
Turn-On
PINEAPPLE TECHNOLOGY, INC.
UTX2K ULTRA Operating and Service Manual lV -- TRANSMITTER TURN-ON PROCEDURE
lV --- TRANSMITTER TURN-ON PROCEDURE
Before applying AC Power to the transmitter for initial turn-on and check out, the installation should
be approved by a qualified broadcast engineer. The turn-on procedure that follows is recommended by
Pineapple Technology, Inc. engineering staff:
1. Check transmitter load or antenna for proper installation and connection to the transmitter.
2. Open the transmitter and inspect all cables and wires for loose connections or broken wires in the
rack assembly.
3. Check for damage to the equipment mounted in the rack.
4. Check all AC breakers and on/off switched to ensure that they are all in the OFF position.
5. Turn-on Main AC breaker located in the house service sub-panel.
6. Turn-on the Main AC breaker located on the two (2)
A
CDIS2 Power Distribution panel located
on the front of Transmitter. A green light should come on indicating power is on.
7. Turn-on the AC Switch located on the front of the
A
DP500. The indicating lights should be on
and ready for operation.
8. Turn-on the AUX Breaker located on the
A
CDIS2 front panel. The PA fans and rack exhaust
fans should come on.
9. Turn-on the AC Power breakers located on the front panel of the ACDIS2. Check the
A
C2009
power modules, three (3) each, to see if the green lights are lighted indicating normal operation.
10. Using the
A
DP500 and PAS3, check the idling currents on each PA to ensure that the
currents are in the correct range. Typical range is 0.5 to 2.5 amps. See
A
DP500 Operating
Section for details.
NOTICE: The Modulator has been set at the factory so that the output power indication on the
A
DP500 will show 100% or 2 KW p-sync power level. It is important to read the instruction
manual supplied with the modulator to locate key adjustment devices on the front panel. The
output level adjustment will be necessary for the next step in the turn-on procedure.
11. Locate the output level adjustment on the modulator and turn the level down to minimum or CCW.
12. Turn-on the power switch located on the modulator rear panel.
13.
A
pply a video signal (1 volt P-P) to the video input terminal.
14. Slowly increase the output level adjustment while watching the RF Output level on the
A
PD500 meter until it reads to 50%.
15. Using the ADP500 reflected power indication, check the LOAD reflected power. This should be
less than 5% reflected.
16. Return to the PA current readings on the ADP500 to verify that all the currents are approximately
the same.
17. With successful performance to Step 17, the transmitter output power can be increased using the
output level adjustment on the modulator to achieve 100%. The aural power can be added at this
time not exceeding 10% of output p-sync power as indicated on the ADP500.
Page 6
Section V
Theory
of
Operation
PINEAPPLE TECHNOLOGY, INC.
UTX2K ULTRA Operating and Service Manual V -- THEORY OF OPERATION
V
--- THEORY OF OPERATION (Page 1 of 5)
A
. INTRODUCTION
The UTX2K ULTRA transmitter was designed to meet or exceed all FCC applicable specifications for
TV broadcast equipment. Special attention was given to the selection of sub-assemblies and components
to achieve maximum reliability and minimum down time. The construction of the UTX2KW ULTRA is
BASIC and MODULAR with most components field replaceable. Special emphasis was placed on
"KEEPING IT SIMPLE" and returning to more traditional transmitter layouts and instrumentation.
This transmitter was designed for Analog (NTSC) transmission with provisions and options available to
convert to Digital Service at a later date if necessary.
Refer to the UTX2K ULTRA block diagram in for an overview of the transmitter architecture. This will
give the technician basic information needed to understand the operation of the transmitter and the function
of each subassembly.
SEE SECTION Vl.A FOR PARTS LIST AND BLOCK DIAGRAM.
B. ACDIS2 AC & DC DISTRIBUTION
The ACDIS2 is the primary AC power inlet module. The UTX2K ULTRA transmitter was designed to accept
208 to 240 VAC Single Phase using a four (4) wire connection. The four wires are:
--- 2 wires for 208 -230 VAC Single Phase
--- 1 wire for neutral connection
--- 1 wire for safety ground connection
CAUTION: Connection to the AC Primary source must be made using all four wires listed above. Follow
the wiring instruction given in TRANSMITTER INSTALLATION Section lll.3. If not followed, severe damage to
the transmitter and, or, electrical shock could result.
The ACDIS2 performs the following functions:
1. Provides a primary AC power breaker point to shutdown the transmitter
2. Provides 208 VAC power to each of the 2 KW DC power supplies with individual breaker points for
added safety.
3. Provides 110 VAC circuits for Modulator, ADP500, ABS (as necessary) and AUX Power where
needed.
4.
A
nalog metering is provided to monitor the Power Supply voltage and current being applied to the
RF Amplifier states.
5. Power supply current sharing test points are provided for checking current sharing between
power supply modules.
SEE SECTION VI.B FOR SCHEMATIC AND PARTS LIS
T
C. AC2008 2KW POWER SUPPLY MODULE
The UTX2K ULTRA transmitter is designed with over 6 KW of DC power. To achieve this level, the power supply
in each transmitter rack is made up of three (3) TWRI6004 (PTI Part # AC2008) power modules mounted into
one (1) main frame assembly (PTI Part # AC2009) which are capable of managing three (3)
2 KW modules each.
Page 7
PINEAPPLE TECHNOLOGY, INC.
UTX2K ULTRA Operating and Service Manual V -- THEORY OF OPERATION
(CONTINUED) (Page 2 of 5)
The power modules are "HOT PLUGGABLE" and can be removed or installed without turning off the
transmitter.
Each power supply module has OVER VOLTAGE, OVER CURRENT AND OVER TEMPERATURE
protection as well as a fault signal in the event of a failure.
REFER TO MANUFACTURER'S MANUAL FOR MODEL # TWRI6004 PROVIDED WITH THE UTX2K ULTRA.
D. ADP500 AND PAS3 PERFORMANCE MONITO
R
The ADP500 AND PAS3 Performance Monitor provides the following functions:
1. Monitors FORWARD AND REFLECTED POWER to the antenna and presents it as a percentage
of power rating. The transmitter comes set to 100% P-Sync power based on the ratings of the
transmitter.
2. Monitors Aural Power as a percentage of P-Sync rating (5% typical).
3. Provides a HIGH ANTENNA VSWR MONITOR in the event of an antenna or coax failure where
the reflected power exceeds 25% the transmitter will shut down. The front panel LED will change
from green to red in case of a fault.
4. Provides current monitoring of all the pallets used in the three (3) PA1K power amplifier assemblies.
The current levels can be read directly from the multi-meter on the front panel. Individual pallets are
selectable on the ADP500 and the PA assemblies are selected using the PAS3. In normal operation, a
PA FAULT is indicated by going from green to read. RED indicates that the current level is below 500 ma
and a transistor may have failed. To read the actual current, select the appropriate PA Bank using the
PAS3. The ADP500 will display status of each pallet in that PA. The multi-meter will read the actual
current.
5.
A
PA INHIBIT switch is provided for failure diagonostic purposes. When activated, this switch allows
the technician to monitor the bias currents for each pallet. These readings were recorded at the factory
and are found on the Transmitter Test Report, DC Test Report Section. This is the best way to
troubleshoot possible transistor problems. When in the PA INHIBIT mode, the RF PWR OFF LED will
change from green to red indicating that the "SHUTDOWN LINE" is at TTL 0 state and the output power
has been reduced to near zero.
6.
A
n RF MONITOR port (BNC) is available to connect a spectrum analyzer for monitoring the
output signal.
7. METER SELECTION SWITCHES
The PAS3 is used to select the appropriate PA module (PA1K) for performance display on the ADP500.
PA designations are PA1 starting from the top row left (there is no PA located in the top row right
position) with PA3 and 4 located on the bottom row left to right.
The rotary switch on the ADP500 is the detail selector for the multi-meter. The various positons are
defined as follows:
PA1 thru PA5…………………………………
…
Reads PA Pallet currents as selected
Typical reading in INHIBIT MODE 1.5 to 2.5 A
Typical reading SMPTE BARS 5-7 A for PA1 thru PA4 with normal picture
Typical reading SMPTE BARS 2-3 A for PA5 with normal picture
Page 8
PINEAPPLE TECHNOLOGY, INC.
UTX2K ULTRA Operating and Service Manual V -- THEORY OF OPERATION
(CONTINUED) (Page 3 of 5)
7. METER SELECTION SWITCHES (Continued)
PA6………………………………………… No Connection
PS VOLTS………………………………… Reads DC voltage applied to PA stages
Typical reading would be +29 to 33 VDC
P FWRD…………………………………
…
Reads PA output power in P-Sync percentage of rating
Full power reading would be 100%
P RFLD……………………………………
…
Reads PA output power being returned from the load and
displayed as a percentage of forward power. Typical
reading would be < 5% indicated.
P AURAL…………………………………
…
Reads the AURAL POWER component as a percentage
of forward power. Typical reading would be 5%
A
UX 1 & AUX 2…………………………
…
Not used in this configuration.
REFER TO SECTION VI.H FOR SCHEMATICS AND PARTS LIS
T
E. RC8 REMOTE MONITOR AND CONTROL WITH ABS
This equipment is OPTIONAL and can be used to satisfy FCC remote control requirements.
The Remote Monitor is used to monitor the operational status of the transmitter and will allow the operator
to turn RF on or off and adjust power levels remotely. The following items are monitored or controlled:
1. Transmitter on/off function
2. Power output level monitor and adjust
3.
A
C Line Voltage status - With ABS you can be notified if there is a power failure at the site.
4. Various other custom options afe available. Specify these at the time the transmitter is
purchased and they will be included if possible.
Remote monitoring requires a phone line connection. Information can be accessed via a PC Terminal.
The Auxiliary power unit requires a battery connection. A common car battery (12 VDC) can be used
with a charger as an ABS. This will run the Monitor and provide access to transmitter status for several
hours.
A
manual for this equipment is provided by the Manufacturer and is included in the UTX2K ULTRA
package shipped with the transmitter. The manual is only included if this option was purchased for
delivery with the transmitter.
REFER TO INSTRUCTION MANUAL PROVIDED WITH THIS PACKAGE.
Page 9
PINEAPPLE TECHNOLOGY, INC.
UTX2K ULTRA Operating and Service Manual V -- THEORY OF OPERATION
(CONTINUED) (Page 4 of 5)
F. MA1000 MODULATO
R
The heart of any TV Transmitter is the MODULATOR. This equipment receives the video and audio
signals was well as any control signals needed. The base band signals are converted to RF with
an output on the desired operating channel.
Detail operation of the Modulator with schematics and parts list are provided by the equipment
manufacturer and included in the UTX2K ULTRA package shipped with the transmitter.
REFER TO INSTRUCTION MANUAL PROVIDED WITH THIS PACKAGE.
G. UDR100AC 100 WATT DRIVER AMPLIFIER
The RF output from the MA1000 modulator is accepted by the UDR100AC DRIVER AMPLIFIER.
This amplifier increases the drive level to that required for each of the PAK1 power amplifiers
to make rated power. The UDR100AC is powered by 110 VAC.
H. US200-3 3-WAY SPLITTER
The US200-3 3-Way Splitter receives the output from the UDR100AC Driver Amplifier
and splits it into 3 parts with phase and power levels equal. This unit is an isolated
in-phase splitter and will provide some isolation in the event one PA fails.
SEE SECTION VI.F FOR PARTS LIS
T
I. MFA2PA POWER AMPLIFIER HOUSING
The MFA2PA is the main RF Power Amplifier housing which accommodates two (2) PA1K
A
mplifiers. The housing includes the following:
2 each 330 CFM cooling fans
2 each
A
ir filter assemblies
2 each Front panel status PC boards
1 each Main chassis
2 each Mechanical slide assemblies
1 each
A
C Filtered inlet for cooling fans
SEE SECTION Vl.D FOR SCHEMATICS AND PARTS LIS
T
I-1. PA1K POWER AMPLIFIER
The PA1K is the main RF Power Amplifier Assembly used in the UTX2K ULTRA.
Each amplifier assembly is made up of one (1) U250LD power pallet and two (2) U500LDA power
pallets. These amplifiers are operated in Class A/AB or sometimes referred to as "HARD AB". This
refers to the bias levels to achieve best linerarity.
Page 10
PINEAPPLE TECHNOLOGY, INC.
UTX2K ULTRA Operating and Service Manual V -- THEORY OF OPERATION
(CONTINUED) (Page 5 of 5)
Each PA1K amplifier assembly includes the following:
1 each U250LD power pallets
2 each U500LDA power pallets
1 each Phase and gain matching circuit
1 each 2-Way gain & in-phase splitter
1 each 2-Way in-phase combiner
1 each Circulator
1 each Power distribution module (1A0025)
2 each Thermal sensors
1 each Remote monitor port (DB9)
1 each Front panel status port (Molex)
1 each Filtered DC input port
1 each Type N Panel mounted RF Input port
1each DIN 7/16 Panel mounted RF Output port
SEE SECTION Vl.E. FOR SCHEMATICS AND PARTS LIS
T
J. UC2KW3NDC COMBINER/ DIRECTIONAL COUPLER
The UC2KW3NDC is a 3-Way in-phase combiner. The combiner is specifically designed
for the channel designated transmitter frequency. This is a closed unit and cannot be serviced.
SEE SECTION Vl.G. FOR PARTS LIS
T
K. BPU3KW UHF BAND PASS FILTER
This Band Pass filter was designed to meet FCC Certification requirements with minimum loss of
RF Power. The BPU3KW comes tuned and tested to the operating frequency of the transmitter
and should no be adjusted without proper equipment. Replacement filters are available as
P/N BPUKW UHF (+CHANNEL NUMBER).
Page 11
Section VI
Schematic
and
Parts List
PINEAPPLE TECHNOLOGY, INC.
UTX2K ULTRA Operating and Service Manual Vl -- SCHEMATICS AND PARTS LIST
A. UTX2K ULTRA Parts Ass
y
Item Qty Type P/N Title Detail
Top CAT UTX2K ULTRA UHF TV XMTR 2 KW P-SYNC STD 19 IN RACK 6 FT
1 1 PS BPU3KW BP FITER 3 KW BAND IV COM-TECH FC4E110C
2 1 PS HL200 1 5/8 U-LINK 6.5 IN FLANGED UNPAINTED
3 1 PS HL201 1 5/8 LINE SECTION FLG-FLG 12 INCHES UN PAINTED
4 1 PS HL202 1 5/8 ANCHOR PLATE UN PAINTED
5 1 PS MFR40RU 40 RU ASSEMBLIED RACK BLACK CONTEMPRA 2 WELDED
6 1 PL AC2009
6KW 3EA PWR SUPPLY MAIN
FRAME UNIPOWER RRS2U
7 3 PS AC2008 2 KW 31 VDC PWR SUPPLY UNI-PWR TRS6000-406
8 1 PS AC8100
AC WIREMOLD 120 VAC 19 IN
RACK MTG 1 X 4 OUTLETS 6 FT CORD
9 1 PS AC8220 AC WIRE MOLD 220 VAC 19 IN RACK MT
10 1 CAT ADP500 DISPLAY PANEL, ANALOG SEL SW AND METER
11 1 PL ACDIS2 AC & DC DISTRIBUTION UTX2KWA TRANSMITTERS
12 1.5 PL MFA2PA
2KW MAIN FRAME W/U500LD
AMPS UHF/VHF ASSEMBLIES
13 1 CAT PAS3 PA SEL SW FOR ADP500 3 POSITIONS W/1 OUTPUT
14 3 PS 1A7052 CABLE ASSEMBLY RG-223 BNC-M TO N-M 52 INCHES LONG
15 3 PS PAC0005 DB9 MALE TO MALE 6 FT LONG PA MONITOR CABLE
16 1 PL 1A6003 DC CABLE SET 5KW HIGH CURRENT ASSEMBLY
17 1 CAT UDR100AC
UHF DRIVER AMP 100W W/AC
SUPPLY U250LD AND UDR100 AMPS
18 1 PS MFR44RU-BB GROUNDING BAR CU MIDDLE ATLANTIC BB-44-1
19 .5 PS MFR44RU-HP5 10-32 MTG SCREWS BLACK
20 3 PL 1A7065 CABLE ASSEMBLY LDF4-50 UTX SERIES XMTR 7/16 DIN TO N M
21 1 PS MA1000 M369 CADCO MODULATOR MODIFIED TO PTI SPECS
23 25 PS INHOUSE_LABOR PTI LABOR LOADED
24 12 PS INHOUSE-ENG TES
T
ENG TESTING AND FIXIT LOADED
26 1 PS MFS102 RU24/40 RACK TOP COVER HOLDS 2 FANS AND OUTPUT CONN.
27 2 PS 851040 FAN, AC 220 V CARAVEL CLE 3T2 W/O FG
28 7 PS MF9283 EQUIPMENT SUPPORT 14 GA GAL-XC (LEFT & RIGHT)
29 1 CAT US200-3 UHF 3 WAY SPLITTER TYPE N I/O
Page 12
SIZE FSCM NO.
SCALE SHEET
DWG NO. REV
Pineapple Technology, Inc.
Rocklin, CA
UTX2K ULTRA
BLOCK DIAGRAM
1of1
FIT
B3
SECTION VI – SCHEMATICS AND PARTS
SUB-SECTION A - UTX2K ULTRA
Modulator
MA1000
PAS3
Bandpass
3-Way
Combiner
UC2KW3NDC
3-Way Combiner
Directional
Coupler
with
BPU3KW
Filter
3-Way
Splitter
US200-3
UDR100AC
100 W Driver
ADP500
Po Level
Xmtr On/Off
Aural
Remote
Control
(Opt)
Phone Line
Xmtr On/Off
Po Level
+12 VDC
Visual
IF
RF Output
AC Inlet
AC Inlet
AC Inlet Fwrd Pwr
Rfld Pwr
A
A
B
CAL
CAL
ATT
ATT
R
F
DC Distribution Panel
DC Amps
DC Volts
Main AC
220 V
AC Main Distribution
ACDIS2
220 VAC
220 VAC
110 VAC
220 VAC
A
AC
Inlet
AC
Out
AC Inlet
DC Output
+32 VDC
A
D
MFA2PA
PA2
M
+DC
RF IN
PA3
M
+DC
RF IN
MFA2PA
PA1
M
+DC
RF IN
MFA2PA
PA1
Rack Fan
D
DD
MFA2PA
PA2 PA3
PA Fans
+32 VDC
125A
125A
125A
AC2009
6KW
Power
Supply
100 mv FS
Meter
Shunt
220VAC
FAN A
FAN B
220VAC
110VAC
220VAC
10
AUX
Directional Coupler
RC8
Page 13
PINEAPPLE TECHNOLOGY, INC.
UTX2K ULTRA Operating and Service Manual Vl -- SCHEMATICS AND PART
S
B. ACDIS2 Assy Tre
e
Item Qty Type P/N Title Detail
Top PL ACDIS2 AC & DC DISTRIBUTION UTX2KWA TRANSMITTERS
1 1 PS 660110 DC PANEL METER 50 V FS HOYT MODEL 3115 1-1/2 ANA PANEL
2 1 PS 660113 DC AMP METER 300 A FS HOYT 3115 100mv FS
3 1 PS 670300 SHUNT, METER 100 mv FS Lightweight shunt, 100 Millivolt, 300 amp.
4 1 PS AC3110 AC CKT BREAKER 115 VAC 10 AMPS RS TYPE
5 1 PS AC8000 AC POWER DISTRIBUTION BLOCK 3 POLE 840 A 60O VAC
6 1 PS AC5105 AC PANEL MTG OUTLET 4 POSITION "GANGED" 15A 115VAC
8 4 PS AC4111 AC POWER PLUG 220AC 16A POWER INLET SCHURTER 4300.0922
9 2 PS 480461 MOLEX CRIMP TERM PLUG PLUG HOUSING 6 POLE
10 4 PS 480462 MOLEX CAP STRAIN RELIEF ACDIS SUBASSEMBLIES
11 2 PS 480460 MOLEX CRIMP TERM 6 POLE CAP HOUSING PANEL MTG
12 12 PS 480463 MOLEX PIN CONTACTS LRG CONN PIN 14-20 AWG TIN CRIMP
13 12 PS 480464 MOLEX SOCKET CONTACTS CONN SOCKET 14-20 AWG TIN CRIMP
14 1 PS 480465 MOLEX PLUG HOUSING 9 POLE MATE-LOC
15 1 PS 480466 MOLEX CAP HOUSING 9 POLE
16 2 PS 480467 MOLEX STRAIN RELIEFS 9 POLE
17 4 PS 471380 FUSE FAST ACTING 80 AMP USE WITH LFFB0001 HOLDER
18 4 PS 460190 FUSE HOLDER 400A LITTELFUSE LFFB001
19 5 PS AC3315 AC CKT BKR ELUMINATED U600LPA 220 15 A 2 POLE
20 1 PS MF9312 ACDIS MAIN CHASSIS AL 090 MATERIAL ALODYNE/W SILK
21 1 PS MF9313 ACDIS MAIN COVER 1 & 2 KW 090 AL ALODYNE
23 1 PS MF9311 PLATE, FRONT ACDIS2
24 1 PS AC3250 AC CKT BRKR 50 AMP 2-POLE 220V
25 2 PS 453000 HW, TIP JACK RED, Insulated standard TIP JACK
26 2 PS 453001 HW TIP JACK WHITE, Insulated standard TIP JACK
27 1 PS 453002 HW, TIP JACK BLACK, Insulated standard TIP JACK
28 2 PS 453003 HW, TIP JACK BLUE, Insulated Standard TIP JACK
29 1 PS AC4302 AC CORD GRIP 0.98 OD CABLE 1.3 HOLE MTG
Page 14
AC MAINAC MAIN
FAN
FAN
CABINET
ULTRA
2/15/2006 JC
2/15/2006 JC
SECTION VI - SCHEMATIC AND PARTS LISTS
SUB-SECTION B - UTX2K ULTRA
Page 15
PINEAPPLE TECHNOLOGY, INC.
UTX2K ULTRA Operating and Service Manual Vl -- SCHEMATICS AND PARTS LIST
C. UDR100AC Assy Tre
e
Item Qty Type P/N Title Detail
Top CAT UDR100AC
UHF DRIVER AMP 100W W/AC
SUPPLY U250LD AND UDR100 AMPS
1 1 CAT U250LD UHF TV 250 W P-SYNC PALLET 470-810 MHz ZINGER COMBINER
2 1 CAT UDR25A DRIVER, 25W LINEAR 470-815 MHz LDMOS DUAL PACKS PALLET MTG
3 1 PS MF9337B PANEL, FRONT DRV100DC
4 1 PS MF9338F CHASSIS DRV100-3
5 1 PS MF9339B DIVIDER AIR FLOW DRV100DC
6 1 PS MF9340B TOP COVER DRV100DC
7 1 PS MF9341 DRV100 HEAT SINK ALL DRV TYPES
8 2 PS 851005 FAN DC 24 V 80X25mm COMAIR-ROTRON
9 2 PS 990201 FILTER & FINGER GUARD 80X25mm FAN 30 PPI
10 1 PS 631001 INDICATOR LAMP LED GREEN 24 VDC 1/2 IN MTG HOLE
11 1 PS 484001 SW, ON/OFF ROCKER AC CW IND. NAA-211-B121-00
12 1 PS AC1003 FILTER, AC LINE 110/220 AC PLUG
13 1 PS AC3110 AC CKT BREAKER 115 VAC 10 AMPS RS TYPE
14 1 PS 451004 HW TER BLOCK #6 2X6 ROW
15 5 PS 451010 TERM BLOCK JUMPERS 2 POLE
16 1 PS AC2010 DC POWER SUPPLY 115/220 VAC 320 WATTS 27-31 VDC
17 2 PS CC316-NPF-PT-21 CABLE ASSEMBLY RG316/ 1 N-FM PANEL MT WITH PIGTAIL
18 1 PS 481100 CON 9 P D-SUB MALE MALE 9P SOLDER CUP
19 1 PS 140010 RES 2W 10 OHM 10 OHM
20 1 PS 140012 RES AXIAL TH 2 WATT 75 OHM METAL OXIDE
Page 16
SIZE FSCM NO.
SCALE SHEET
DWG NO.REV
Pineapple Technology, Inc.
Rocklin, CA
UDR100AC AMP/DRIVER
BLOCK DIAGRAM
U250LD
UDR25A
GND
75 OHM
DC FANS
LAMP
RF IN RF OUT
GROUND
Air Inlet Filters
A
1:1 1of1
P1
P2
P3
P4
P5
P6
P7
P8
P9
Optional
Remote
Interface
DB9
110 VAC {DC
Power
Supply
+28 VDC
Filter
CB On/Off Sw
SECTION VI-PARTS AND VENDORS
SUB-SECTION C - UTX2K ULTRA
Page 17
PINEAPPLE TECHNOLOGY, INC.
UTX2K ULTRA Operating and Service Manual Vl -- SCHEMATICS AND PARTS LIST
D. MFA2PA Parts Ass
y
Item Qty Type P/N Title Detail
Top PL MFA2PA
2KW MAIN FRAME W/U500LD
AMPS UHF/VHF ASSEMBLIES
1 1 PS MF9100E MAIN CHASSIS MFA1KW
2 1 PS MF9101D DIVIDER, PLENUM MFA1KW
3 1 PS MF9102C DIVIDER, FAN MFA1KW
5 1 PS MF9104B COVER, TOP MFA1KW
10 4 PS MF9139 SLED GUIDE U600LP & MFA1KW
11 1 PS MF9123D FRONT PANEL, PAINTED MFA1KW
14 2 PS 990199 FILTER, AIR DRY FF-5 MFA/PS FP
16 2 PS MF9127 MTG BRACKET, MOLEX FMALE MFA1KW
17 6 PS 480472 MOLEX CRIMP TERM MFA1KW MOLEX MFG 39-00-0041
18 2 PS 480400 MOLEX PLUG 6 TERM MFA1KW MOLEX 15-06-0065 MINI-FIT BMI
19 2 PS 460150 FUSE HOLDER PANEL MTG 3AG TYPE QC CON
20 2 PL 1A0035 PA STATUS BOARD PC9061H
22 4 PS INHOUSE_LABOR PTI LABOR LOADED
24 2 PS MF9308 FAN FINGER GUARD MFA1KW & U600LPA
25 2 PS MF9310 AC FAN INLET HOLDER MFA1KW
27 2 PS MF9258 BRACKET FILTER MTG PAINTED U600LPA & MFA1KW
28 1 PS MF9197B DIVIDER PA MFA1KW
29 2 PS 851025 FAN, AC 220 V COMAIR ROTRON TN3A2
30 2 PS AC5110 AC FAN PLUG & CORD FMALE PLUG 24 IN CORD
31 2 PS 451080 TERM BLOCK EU STYLE 4 POLE 12-24 GAGE
32 0.1 PS H-TAPE_TFE TEFLON TAPE, SLIDES 1 INCH X 56 INCHS
33 2 PL PA1K UHF 1KW PA ASSEMBLY U500LD DIN OUTPUT W/CAPTOR FILTERS
34 .2 PS INHOUSE-ENG TE
S
ENG TESTING AND FIXIT LOADED
Page 18
PA1K
PA1K
DB9
DB9
P1
P1
L1
L2
GND
220 VAC
PA1A
PA1A
GND
GND
PA5
PA5
PA2A
PA2A
PA1B
PA1B
SD
SD
+VDC
+VDC
PA2B
PA2B
P6
P6
P5
P5
NA
NA
P8
P8
P9
P9
P7
P7
P4
P4
P3
P3
P2
P2
3A
Fuse
3A
Fuse
J5
J5
220 AC Fan
330 CFM
220 AC Fan
330 CFM
Filter
P3
P3
J3
J3
Fan Power
Fan Power
Ground
Ground
HS Mon
HS Mon
+28 VDC
+28 VDC
Status Display
Assy
Status Display
Assy
1A0035
1A0035
RF IN
RF IN
RF OUT
RF OUT
J1
J1
+32 VDC
+32 VDC
GND RTN
GND RTN
SIZE FSCM NO.
SCALE SHEET
DWG NO. REV
Pineapple Technology, Inc.
Rocklin, CA
MFA2PA
BLOCK DIAGRAM
PA1, PA2
PA3
MFA2PA ASSY
1of1
FIT
BA
SECTION VI - SCHEMATICS AND PARTS
SUB-SECTION D - UTX2K ULTRA
Note: One of the MFA2PA’s in the UTX2K ULTRA only
houses one power amp, PA1. The second
MFA2PA houses PA2 and PA3.
Page 19
PINEAPPLE TECHNOLOGY, INC.
UTX2K ULTRA Operating and Service Manual
V
l -- SCHEMATICS AND PARTS LIS
T
D. MFA2PA POWER AMPLIFIE
R
1. 1A0035 STATUS BOARD PARTS LIS
T
Item Qty Type P/N Title Detail
Top PL 1A0035 PA STATUS BOARD PC9061H
1 2 PS 114330 RES ARRAY, SMT 330 OHMS
2 5 PS 115103 RES CHIP 0805 10K OHM SMT 0805
3 1 PS 115334 RES CHIP 0805 330 K OHM SMT
4 1 PS 115563 RES CHIP 0805 56K OHM 0805 SM
5 3 PS 115682 RES CHIP 0805 6.8 K OHM SMT
6 6 PS 21X005 CAP CHIP 0805 100NF 10% XTR 0805 CASE
7 1 PS 21X008 CHIP CAP 0805 10NF 50 V 0805 SM
8 1 PS 240109 CAP TH POLYPROPYLENE 3N3 600 WVDC .033UF
9 1 PS 240110 CAP TAN SMD 3.3 UFD 35 V
10 1 PS 240111 CAP TAN SMD 47 UF 10 V TAN
11 1 PS 241300 CAP RADIAL TH 330 UF 35 VDC
12 1 PS 241301 CAP RADIAL TH 680 UF 10 V ELECTROLYTIC
13 6 PS 27022N FT CAP 22N SM AVX OR MURRATA PART
14 1 PS 480500 CON MICRO-FIT HEADER 3.0 8 PIN PC MTG
15 1 PS 520230 SEMI DIODE SHOTTKEY 1.5 A 60 VDC D-64
16 1 PS 520275 SEMI, DIODE DUAL SW CC 70V SOT-23
17 2 PS 530350 HEX SCHMITH TRIG 74HD14
18 1 PS 538150 IC SWITCHER SIMPLE SO8 PAK
19 5 PS 630200 IND LED DUAL COLOR RED/GREEN T1-3/4 CLR
20 8 PS 750001 FERRITE BEAD SMT 0805 EMI FERRITE BEAD
21 1 PS 830510 IND, W/W 82 UH .58A PWR SMD
22 1 PS PC9061H PA STAUS BRD FR4 060 1/1 CBR
23 2 PS 115331 RES CHIP 0805 33O OHM SMT
24 1 PS 520120 SEMI ZENER 5.6 V MELF
25 1 PS 115683 RES CHIP 0805 68K SM
26 0.2 PS OS_AES_1A0025 OUTSIDE ASS'Y 1A0025 ASS'Y WORK
27 0.1 PS INHOUSE_LABOR PTI LABOR
28 0.1 PS INHOUSE-ENG TES
T
ENG TESTING AND FIXIT
29 1 PS 480510 RECEPTACLE 8 CKT RECEPT MOLEX
30 1 PS 115333 RES CHIP 0805 33K OHM SMT
31 1 PS 1155112 RES 0805 CASE 51.1 K OHM 1%
Page 20
SIZE FSCM NO.
SCALE SHEET
DWG NO. REV
Pineapple Technology, Inc.
Rocklin, CA
1A0035 STATUS BOARD
CIRCUIT DIAGRAM
C:\\PTI Folders\PTI Block Diagrams\S10-6 5KW Block Diagram
SECTION VI - SCHEMATICS AND PARTS
SUB-SECTION D.1 - UTX2K ULTRA
Page 21
PINEAPPLE TECHNOLOGY, INC.
UTX12K ULTRA Operating and Service Manual
V
l -- SCHEMATICS AND PARTS LIS
T
D. MFA2PA POWER AMPLIFIE
R
2. PA1K ASSEMBLY TREE
Item Qty Type P/N Title Detail
Top PL PA1K
UHF 1KW PA ASSEMBLY U500LD
PAs DIN OUTPUT W/CAPTOR FILTERS
1 1 PL MF9525 HS RT SIDE U500LD ASSEMBLY BLF872 LDMOS
2 1 PL MF9526 HS LEFT SIDE U500LD BLF872 DEVICES
3 1 PL MF9539 ISOLATOR & 2-WAY COMB PLATE U1KWPA ASSEMBLY W/BLF872A
4 2 PL U500LDA 500W 470-810 MHz POWER PALLE RGR 4003 032 MATERIAL BLF872
5 1 PL 1A0025 DC ISO/MONITOR CKT REPLACED CB99
6 1 PS CT-1326A CIR W/TABS CH 26 TO 44 Circulator 542-656 MHz
7 1 PS 270600 FT CAP CAPTOR 9 NF 500V 5/16 TERMINALS
8 1 PS MF9126C MOLEX BRACKET MTG PLATE U600LD ALL
9 1 PS MF9309 REAR PANEL WITH SILK 090 AL ALODYNE
10 1 PS MF9203 B1 1A0025 PCB MTG PLATE SM 09 AL W/MTG
11 1 PS MF9137E SLED U500L AL
12 1 PS 454001 HANDLE, REAR BLK NYLON
13 1 CAT U250LD UHF TV 250 W P-SYNC PALLET 470-810 MHz ZINGER COMBINER
14 1 PS PC9022A_B2 PC BOARD COMB 2-WAY INPHASE 060 1/1 RG
15 1 PL PC9518A
PCB SET OF (3) BRDS OUTPUT
COMB U1KWPA ASS'Y
16 2 PS INHOUSE_LABO
R
PTI LABOR
17 .4 PS
INHOUSE-ENG
TEST ENG TESTING AND FIXIT
18 1 PS CA4000
COAXIAL ASSEMBLY W/7_16 DIN
CON COAX IS SUPPER FLEX
Page 22
SIZE FSCM NO.
SCALE SHEET
DWG NO. REV
Pineapple Technology, Inc.
Rocklin, CA
PA1K Amplifier Assy
BLOCK DIAGRAM
Gain
and
Phase
Network
Power
Distribution
Module
1A0025 Assy
U250LD
PA
RF IN
DB9
J31
RF OUT
U500LDA
PA2
U500LDA
PA1
2-Way Input
Splitter
2-Way In-phase
Combiner Circulator
400 W
50 ohm
Heat Sink L
Heat Sink R
TS2
TS3
+32 VDC
+32 VDC
+32 VDC
A
A
B
B
+32 VDC
+32 VDC
+32 VDC
GROUND
Shutdown Line (SD)
P1 PA1B
P6 PA1A
P5 SD
P8 +VDC
P9 NC
P7 PA2B
P4 GND
P3 PA5
P2 PA2A
A
MFA2PA
Front
Panel
Interface
J26
J25
J24
J23
J22
J29
FIT 1 of 1
B
SECTION VI
SCHEMATICS AND PARTS SUB-SECTION D.2 - UTX2K ULTRA
Page 23
PINEAPPLE TECHNOLOGY, INC.
UTX2K ULTRA Operating and Service Manual Vl -- SCHEMATICS AND PARTS LIST
E. US200-3 Assy Tre
e
Item Qty Type P/N Title Detail
Top CAT US200-3 UHF 3 WAY SPLITTER
Page 24
RF OUT TO PA1
RF OUT TO PA2
RF IN
RF OUT TO PA3
SIZE FSCM NO.
SCALE SHEET
DWG NO. REV
Pineapple Technology, Inc.
Rocklin, CA
US200-3 3-WAY SPLITTER
BLOCK DIAGRAM
SECTION VI - SCHEMATICS AND PARTS
SUB-SECTION E - UTX2K ULTRA
50 OHM
TERMINATION
Page 25
SIZE FSCM NO.
SCALE SHEET
DWG NO. REV
Pineapple Technology, Inc.
Rocklin, CA
UC2KW3NDC 3-WAY COMBINER
& DIRECTIONAL COUPLER
No Serviceable Parts
SECTION V1 - SCHEMATICS AND PARTS
SUB-SECTION F - UTX2K ULTRA
Page 26
SIZE FSCM NO.
SCALE SHEET
DWG NO. REV
Pineapple Technology, Inc.
Rocklin, CA
BPU3KW BANDPASS FILTER
CIRCUIT DIAGRAM
NO SERVICEABLE PARTS
SECTION VI - SCHEMATICS AND PARTS
SUB-SECTION G - UTX2K ULTRA
Page 27
PINEAPPLE TECHNOLOGY, INC.
UTX2K ULTRA Operating and Service Manual
V
l -- SCHEMATICS AND PARTS LIS
T
H-1 PAS3 SELECTOR SWITCH ASS
Y
Item Qty Type P/N Title Detail
Top CAT PAS10 PA SEL SW FOR ADP500 10 POLE INPUT 1 OUTPUT
1 1 PS PC9501 PA SELECTER SWITCH 10 POLE ADP500
2 1 PS 483010 SW 10 POLE ADP500 PA SELECTOR PAS10
3 1 PS 481250 CON DB9 SUB RT ANGLE FM METAL CASE AMP7457814
4 5 PS 481260 CON DB9 2 SECTION RT ANG PCB MTG 0.9 SPACING
5 1 PS MF9342X1 PLATE, FRONT PAS10 W/ PAINT & SILKSCREEN
6 1 PS MF9343X1 CHASSIS, PAS10 W/ ALODINE & SILKSCREEN
7 1 PS MF9344X1 COVER, TOP PAS10 W/ ALODINE & SILKSCREEN
H-2 APD500 PERFORMANCE MONITOR
Item Qty Type P/N Title Detail
Top CAT ADP500 DISPLAY PANEL, ANALOG SEL SW AND METER
1 1 PL 1A0029 ADP1000 LOGIC PCB LOGIC BRD PARTS
2 1 PL 1A0030 ADP1000 FP PCB FP PCB AND PARTS
3 1 PS 471306 FUSE 3AG 6 AMP
4 1 PS 460150 FUSE HOLDER PANEL MTG 3AG TYPE QC CON
5 1 PS 484001 SW, ON/OFF ROCKER AC CW IND. NAA-211-B121-00
6 1 PS 660103 METER, 2 VOLTS FS SELCO 39M-0-2VDC
7 1 PL 1A0027 PWR MONITOR CK PC9052B CBR
8 1 PS PS2527 POWER SUPPLY OPEN/FRAME 110/220 VAC 27 V 25 W
9 1 PS 484020 TOGGEL SW MOMENTARY/ON 2 POLE
10 1 PS MF9214 FRONT PANEL PANEL FRONT ADP500
11 1 PS MF9011 Cover, Top ADP1000
12 1 PS MF9209B DIVIDER ADP1000
13 1 PS MF9208 CHASSIS ADP500/1KW
Page 28
SIZE FSCM NO.
SCALE SHEET
DWG NO. REV
Pineapple Technology, Inc.
Rocklin, CA
PAS3 AND ADP500
BLOCK DIAGRAM
PA(N)
110 VAC
FWD PWR 20 dbm
PA(N)
N/A
PA1
PA2
PA3
PA4
PA5
PA6 PS VOLTS
P FWD
P RFL
P AURAL
AUX1
AUX2
REFL PWR 20 dbm
PA3 Input
PA2 Input
PA1 Input
SEL
SW
METER
PAS3 PA SELECTOR
ADP500 MONITOR
REMOTE STATUS AND CONTROL
SUB
ASSY
SW
NOTE: PA6, AUX1 AND AUX2 ARE N/C
RF Sample
{
{
{
{
{
DB9
DB9
P1 FWD PWR
DC VOLTAGE
DC CURRENT
PHONE LINE
NOT USED
NOT USED
GND
SHUTDOWN
AURAL PWR
RFLD PWR
NC
NC
P2
P3
P4
P5
P6
P7
P8
P9
SECTION VI - SCHEMATICS AND PARTS
SUB-SECTION H - UTX2K ULTRA
Page 29
Section VII
Recommended
Routine
Maintenance
PINEAPPLE TECHNOLOGY, INC.
UTX2K ULTRA Operating and Service Manual VII -- ROUTINE MAINTENANCE
V
II --- ROUTINE MAINTENANCE (Page 1 of 2)
The following KEY MAINTENANCE AND PERFORMANCE CHECKS should be made monthly or mor
e
frequently in some environments where dust and rodents are problems. Pineapple Technology, Inc.
recommends that the station provide a data log book to maintain these records.
DANGER: SOME OF THE RECOMMENDED TESTS REQUIRE THAT THE TRANSMITTER BE
OPERATING IN NORMAL MODE. THIS PROCEDURE MUST BE PERFORMED BY A
BROADCAST ENGINEER. MORE THAN ONE PERSON SHOULD BE PRESENT IN CASE OF A
N
ACCIDENT REQUIRING ASSISTANCE. COMMUNICATIONS TO EMERGENCY SERVICES SHOULD
BE AVAILABLE
.
TRANSMITTER
●This is an integrated 2KW transmitter and is built around three (3) PA1K amplifier assemblies
located in two MFA2PA mainframes. (One mainframe only holds one (1) PA1K)
●Record the transmitter forward and reflected power on the watt meter provided with the transmitter.
This measured value will vary with picture content.
●Using the ADP500 and PAS3 record currents for each power LDMOS device in the transmitter.
The absolute measured value will vary with picture content so this is best performed with a fixed
signal such as SMPTE BARS, however, relative measurements are adequate to indicate a
problem at the power device stage. (See operating instructions for ADP500 and PAS3 for more
details).
●(OPTIONAL) When the transmitter is first put into service it is a good idea to go through each PA
stage and record the static bias level (NO RF DRIVE). This is done by selecting the desired
PA and using the PA INHIBIT switch. When this switch is activated, the PA drive is turned of
f
and the bias current can be measured. This is a momentary switch because when it is
activated, the PA drive is removed from all the PA's in one half of the transmitter and the outpu
t
power will be reduced to nearly zero (0) watts. THIS IS THE BEST METHOD TO USE WHEN
TROUBLESHOOTING A POSSIBLE BAD POWER TRANSISTO
R
.
●Record the voltage and current measurements displayed on the AUX meter.
●Carefully inspect RF Output coaxial cables for excessive heating or discoloration.
●Check DC Power connections on shunt panels and power supplies for over heating which
could indicate the hardware needs attention.
●Check DC Connections on the PA rear panel.
●Remove and clean the air filters located on the front panel of each MFA2PA mainframe assembly.
It is safe to remove the filter while the transmitter is operating. The filters may be cleaned with
a light detergent and dried completely before re-installing. Spare filters are available fro
m
Pineapple Technology, Inc. Request Part Number P/N 990199 when ordering.
Page 30
PINEAPPLE TECHNOLOGY, INC.
UTX2K ULTRA Operating and Service Manual VII -- ROUTINE MAINTENANCE
V
II --- ROUTINE MAINTENANCE (Page 2 of 2)
FACILITIES
●Clean all air inlet filters and exhaust outlets to ensure that the transmitter is getting clean
unobstructed airflow.
●Perform recommended service on air condition systems.
●Rodent traps or baits should be renewed to keep the facilities clear of these pests which can
cause damage to the transmitter.
Page 31
Section VIII
Adjustments
and
Tuning
PINEAPPLE TECHNOLOGY, INC.
UTX2K ULTRA Operating and Service Manual VIII -- ADJUSTMENTS AND TUNING
V
III --- ADJUSTMENTS AND TUNING (Page 1 of 2)
The UTX2K ULTRA is a new series of transmitters offered by Pineapple Technology, Inc. The
latest in LDMOS device and circuit technology are employed to ensure reliable and serviceabl
e
operation for many years.
There are very few adjustments necessary to maintain full service condition. The following will
give the technician a general overview of locations for locating these adjustments:
1. MODULATOR - See details for all adjustments in the Manufacturer's Instruction Manual
provided with your transmitter. Should you have any questions, contact the Pineapple
Technology, Inc Engineering staff for assistance.
2. BPU3KW - The bandpass filter provided with your transmitter has been tuned at the factor
y
and adjustments should not be necessary and are not recommended. Any attempt to tune
or modify this filter will void manufacturer's warranty.
3. U500LD - This is the main PA board in the transmitter. Under normal operation, no adjustments
are necessary. In the unlikely event that a power transistor has to be replaced, the bias
adjustments should be reset to insure optimum operation of the transmitter. The following
procedure should be followed when making bias adjustments:
a. Remove the PA1K amplifier assembly from the transmitter and set it up on a
sturdy work bench. The bench should be equipped with a 32 VDC power supply wit
h
current capacity of 10 Amps. A VOM will be required to measure the voltage dro
p
across the precision resistors located on the monitor board.
b.
A
ttach 50 ohm load resistors to the input port and one to the output port.
If this is not done, severe damage to the PA is possible resulting in costly repair.
c. Connect the 32 VDC supply to the DC ± terminals. DO NOT TURN THE POWER SUPPLY
ON AT THIS TIME.
d. Locate the circuits where bias adjustments are necessary. Adjust only those circuits
where service was performed. Turn the bias adjustment POT's fully counter clockwise
You will find two (2) POT's for each power device with one on each gate. These ar
e
small SMT components and require gentle handling.
e. Locate the current sense resistors on the monitor board. This is a 2 watt .01 ohm
precision resistor. There is one for each device.
f. Turn the power supply on and measure the +DC to ensure that it reads +32 VDC.
g. Measure the voltage drop across the precision resistor. This should read zero (0) VDC.
Increase one of the bias POT's slowly till the meter reads 0.009 volts. Increase the
second POT until the reading is 0.018 volts. This completes the adjustment.
h. Repeat the adjustment above as necessary to set all circuit that have been serviced.
NOTICE: DO NOT USE THE BIAS CURRENT INDICATED ON THE MONITOR PANEL
OF THE ADP500 TO MAKE BIAS ADJUSTMENTS.
Page 32
PINEAPPLE TECHNOLOGY, INC.
UTX2K ULTRA Operating and Service Manual VIII -- ADJUSTMENTS AND TUNING
V
III --- ADJUSTMENTS AND TUNING (Page 2 of 2)
4. PA PALLETS - These circuits are "FIXED TURNED" and do not require any field adjustment.
A
ny questions regarding pallet adjustments should be referred to the factory.
5. PHASE MATCHED CABLES - If it becomes necessary to replace one of the phase matched
cables, contact Pineapple Technology, Inc. for replacements. These cables are the ones
connected to the input and output ports on the PA1K.
6. OUTPUT POWER - The transmitter output power measurement is made using a calibrated
wattmeter provided with the transmitter. No adjustments are necessary here.
7. GAIN & PHASE MATCHING - Under normal conditions it is not necessary to make any gain
or phase adjustments in the transmitter. This transmitter is equipped with provision to adjust
phase and gain to ensure minimum power loss in the dump load and maximum forward
transfer power to the antenna. Contact Pineapple Technology, Inc. for details if this become
s
necessary.
Page 33
Section IX
Problem
Solving
&
Troubleshooting
PINEAPPLE TECHNOLOGY, INC.
UTX2K ULTRA Operating and Service Manual IX -- PROBLEM SOLVING/TROUBLE SHOOTING
IX - PROBLEM SOLVING & TROUBLE SHOOTING
(
Pa
g
e 1of 3
)
The UTX2K ULTRA is a "MODULAR ASSEMBLY" where most of the sub-assemblies can be
removed and or re
p
laced as necessar
y
as necessar to maintain full service. To service this transmitter,
it is best to become familiar with the various sub-assemblies b
y
reviewin
g
the transmitter block dia
g
ram
and it's associated subs shown in the introduction. An
y
work
p
erformed on a transmitter licensed b
y
the FCC must be
p
erformed b
y
q
ualified
p
ersonnel.
FAILURE ANALYSIS STARTS WITH THE FOLLOWING ASSUMPTIONS:
1. The transmitter is connected to an AC source which is within the s
p
ecified volta
g
e ran
g
e
and has am
p
le
p
ower to run the transmitter.
2. The antenna has been checked out and a
p
ro
p
er match has been verified.
3. The room tem
p
erature is < +35 de
g
rees Celsius
(
+95 de
g
rees Fahrenheit
)
4. There are no restrictions in the air flow in or out of the buildin
g
.
5. The video and aural si
g
nals to the modulator com
p
l
y
with stated s
p
ecifications.
CHECKING THE WARNING LIGHTS
There are several warnin
g
si
g
nals visible on the front of the transmitter that will alert the technician
of
p
ossible
p
roblems. When viewed from the front, all the li
g
hts should be GREEN indicatin
g
normal
o
p
eration. An alert si
g
nal is indicated b
y
a RED li
g
ht. We will focus on RED alert si
g
nals in this section
.
MFA2PA ASSEMBL
Y
FAN FAULT RED indicates that the fuse su
pp
l
y
in
g
AC to the fan has failed. The fus
e
is located
j
ust inside the front
p
anel near the to
p
.
CHECK: FUSE AND/OR FAN
DC SUPPL
Y
RED indicates a loss of +32 VDC to P
A
CHECK: DC su
pp
l
y
volta
g
e to the rear of the PA1
K
CHECK: DC su
pp
l
y
fuse located on the Fuse
p
anel located at the bottom
of the rack in the rear.
CHECK: AUX
p
anel location in the bottom half of the rack bein
g
checked
for
p
ro
p
er volta
g
e and current readin
g
s
NOTE: If all the ALERT li
g
hts are on in a
g
iven reak, this could indicate
that a breaker has tri
pp
ed
CHECK: Circuit breakers located on the front of the ACDIS2 or the
sub-
p
anel breaker located at the MAIN AC su
pp
l
y
.
Page 34
PINEAPPLE TECHNOLOGY, INC.
UTX2K ULTRA Operating and Service Manual IX -- PROBLEM SOLVING/TROUBLE SHOOTING
IX - PROBLEM SOLVING & TROUBLE SHOOTING (Page 2of 3)
SHUTDOWN RED indicates that the PA has been "SHUTDOWN". There are two
possible reasons for this:
1. Heat Sink over temperature thermostat has tripped protecting the PA
CHECK: Air inlet filter for possible restrictions to air flo
w
CHECK: Fan air flow for possible fan faul
t
CHECK: Room temperature
Note: Heat sink over temperature fault is indicated by the RED alert light goin
g
ON/OFF in cycles varying in duration depending on air flow. The P
A
returns to normal operation automatically when the problem is corrected.
2. Remote Shutdown by external signals coming from other protection circuits.
CHECK: Transmitter global protection circuits.
ADP500 MONITOR
The ADP500 is a general purpose test instrument used to display PA status and measure voltage,
current and RF power levels. When combined with the PAS3 it is possible to measure the current
being drawn by each PA RF Device. In addition to its measurement features, it serves to integrat
e
fault signals for PA Assemblies, High VSWR alarms and provides an interface to the RM8 Remote
Control Unit. The ADP500 is a diagnostic tool for troubleshooting the transmitter.
With normal operating conditions, all the LED's on the front panel are GREEN. Red LED's could
indicate a fault in the transmitter that require attention.
RF PWR OFF LED is RED Will occur anytime the "SHUTDOWN LINE" (SD) is set to zero (0)
volts. The following conditions will pull the set SD to zero volts
:
1. Antenna VSWR HIGH
2. PA INHIBIT SWITCH actuated.
A
NT VSWR HIGH LED is RED This indicates that the antenna reflected power exceeded the se
t
trip point. This is an internal setting performed at the factory and is
normally set to 10% of the RF OUTPUT POWER set point.
CHECK: The transmitter output connections and antenna for
possible faults. The fault condition will automatically reset whe
n
the problem is corrected.
Page 35
PINEAPPLE TECHNOLOGY, INC.
UTX2K ULTRA Operating and Service Manual IX -- PROBLEM SOLVING/TROUBLE SHOOTING
IX - PROBLEM SOLVING & TROUBLE SHOOTING (Page 3 of 3)
PA1 - PA5 LED's are RED This will indicate that the PA Pallet currents are below the 500 m
a
set point. This can occur when the PA Power device has failed.
CHECK 1: Select the PA device in question for current displa
y
on the multi-meter. Compare the reading to the station log. I
f
abnormal, it is possible that a power transistor has failed.
NOTICE: PA5 will go RED when the INHIBIT SWITCH is
actuated.
CHECK2: To confirm a failed device, it is necessary to shutdown
the transmitter and remove the PA1K power amplifier assembly
and check the device in question. Use a VOM to check the
resistance from the gate of each 1/2 of the device to ground. If
either reading is below 1K ohm it is likely that the device ha
s
failed.
POWER SUPPLY MODULE LED RED
The Power Supply Module has two warning LED's located on the front panel. Normally these LED's ar
e
GREEN indicating that the AC Line voltage and the OVER VOLTAGE circuits are operating properly
.
If either LED turns RED the module is question will be turned off and is no longer supplying powe
r
to the transmitter. These modules are "HOT PLUGGABLE" and can be removed from active service
by simply removing it from the main frame. Pineapple Technology, Inc. does not recommend an
y
attempt to service these modules. Any attempt to service may void factory warranties. Return th
e
module to Pineapple Technology, Inc. or to the manufacture for service.
NOTICE: If it becomes necessary to operate the transmitter with a missing supply module, ver
y
little if any performance degrading will be experienced. Check the AUX volt meter for any indicatio
n
of a drop in voltage (normally 32 VDC). This drop is caused by the power supply modules going int
o
"CURRENT LIMIT". It is important that the voltage be around 32 volts ±0.5. If the voltage falls belo
w
this point, it can be recovered by reducing the RF Drive level a small amount in most cases. This
should be done only with the DUMP LOAD MONITOR on and indicating that the maximum powe
r
is not exceeded.
Page 36
Section X
Warranty
PINEAPPLE TECHNOLOGY, INC.
UTX2K ULTRA Operating and Service Manual X -- WARRANT
Y
X -- WARRANT
Y
The WARRANTY provided by Pineapple Technology, Inc. (PTI) on this transmitter is detailed below.
It should be noted that some of the equipment sub-systems have warranty coverage by the orginal
manufacture that differs from the standard warranty provided by PTI Warrantydetails on equipment falling
into this category may be found in the Manufacturers instruction manual provided with the transmitter.
In all cases, replacement units of this equipment are normally in stock at PTI for quick turn service
support to our customers during the PTI Standard Warranty period.
STANDARD WARRANT
Y
Seller warrants that each Product sold by it is free of defects in materials and workmanship. Seller's
obligation under said warranty continues for a period of one (1) year from date of shippment. Repairs or
replacement of defective parts shall be the sole and exclusive remedy under waranty, at Seller option,
provided that Seller may, as an alternative, elect to refund an equitable portion of the purchase price
of the product. THIS WARRANTY IS EXPRESSLY IN LIEU OF AND EXCLUDES ALL OTHER
EXPRESS OR IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO WARANTIES OF
FITNESS FOR A PARTICULAR PURPOSE, USE, OR APPLICATION, AND ALL OTHER OBLIGATION
S
OR LIABILITIES ON THE PART OF THE SELLER, UNLESS SUCH OTHER WARRANTIES
OBLIGATIONS OR LIABILITIES ARE EXPRESSLY AGREED TO IN WRITING BY SELLER.
WARRANTY REPLACEMENT AND REPAIR
S
A
ll claims under warranty must be made promptly after occurrence of circumstances giving rise to thereto
and must be received within the applicable warranty period by seller or its authorized representatives.
Such claims must be documented on a PTI* Field Failure Report with a full description of the circumstances
giving rise to the claim. Before any products are returned for repair and/or adjustment, written authorization
form seller or its authorized representative for the return and instructions as to how and where these
products should be shipped must be obtained. This is to include a Return Authorization (RA) number
provided by the seller or authorized representative, this must accompany ALL returns. Any product
returned to the seller for the examination shall be sent prepaid via the means of transportation indicated as
acceptable by seller. Seller reserves the right to reject any warranty claim not promptly reported and any
claim on any item that has been altered, i.e. circuit modifications, components removed, or has been shipped
by non acceptable means of transportation. When a product has been returned for examination and inspection,
or for any other reason, customer shall be responsible for all damage resulting from improper packaging or
handling, and for loss in transit, notwithstanding any defect or nonconformity in the product. In all cases the
seller has sole responsibility for determining the cause and nature of the failure, and the Seller's
determination with regard thereto shall be final. If it is found that Seller's Product has been returned without
cause and is still serviceable, customer will be notified and the Product returned at its expense, in addition,
a charge for testing and examination may, in Sellers sole discretion be made on Products so returned.
* A field Failure Report is included at the end of this manual - Additional Field Failure Reports can be obtained by calling
Pineapple Technology, Inc. at (916) 652-1116 or you may download one from our website at www.ptibroadcast.com
in the Warranty section.
Page 37
Section XI
Extended
Warranty

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