User's Manual

ManualsBrandsPineapple Technology ManualsElectronics2 KW VHF TV TRANSMITTER

V T X 2 K W - A

INSTRUCTION MANUAL

SN:

PINEAPPLE TECHNOLOGY, INC.

DRAFT

Summary of content (49 pages)

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FT RA D VTX2KW-A INSTRUCTION MANUAL SN: PINEAPPLE TECHNOLOGY, INC.
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PINEAPPLE TECHNOLOGY, INC. TABLE OF CONTENTS VTX2KW-A Operating and Service Manual Section I — SAFETY NOTICES ........................................................................ 2 **READ THIS SECTION BEFORE INSTALLATION** Section II — TRANSMITTER SPECIFICATIONS .............................................. 3 Section III — TRANSMITTER INSTALLATION................................................. 5 Section IV — TRANSMITTER TURN-ON PROCEDURE ....................................
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PINEAPPLE TECHNOLOGY, INC. I — SAFETY NOTICES VTX2KW-A Operating and Service Manual I — SAFETY NOTICES **READ THIS SECTION BEFORE INSTALLATION** SEVERE ELECTRICAL SHOCK OR BURNS MAY OCCUR 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.
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PINEAPPLE TECHNOLOGY, INC. II — VTX2KW-A SPECIFICATIONS VTX2KW-A Operating and Service Manual II — VTX2KWA SPECIFICATIONS OPERATING Power Output ...................................................... 2 KW Peak Sync Aural Power ......................................................... 200 Watts RF Output Impedance.......................................... 50 ohms Operating Frequency Range ................................ Channel 7 thru 13 NTSC Frequency Stability ..........................................
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PINEAPPLE TECHNOLOGY, INC. II — VTX2KW-A SPECIFICATIONS VTX2KW-A Operating and Service Manual AUDIO PERFORMANCE Audio Response ................................................... Meets FCC Pre-emphasis Curves Distortion ............................................................. <1 % THD FM Noise ............................................................. 50 dB or better AM Noise ............................................................ 40 dB or better AM Synchronous Noise ........................
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PINEAPPLE TECHNOLOGY, INC. III — TRANSMITTER INSTALLATION VTX2KW-A Operating and Service Manual III — TRANSMITTER INSTALLATION To insure long and reliable trouble free service from the VTX2KWA transmitter the following steps for installation are recommended. 1. MECHANICAL INSTALLATION: The VTX2KWA 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.
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PINEAPPLE TECHNOLOGY, INC. VTX2KW-A Operating and Service Manual IV — TRANSMITTER TURN-ON PROCEDURE IV — 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.
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PINEAPPLE TECHNOLOGY, INC. V — THEORY OF OPERATIONS VTX2KW-A Operating and Service Manual 15. Using the ADP500 reﬂected power indication check the LOAD reﬂected power. This should be less that 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%.
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PINEAPPLE TECHNOLOGY, INC. V — THEORY OF OPERATION VTX2KW-A Operating and Service Manual 4. Analog metering is provided to monitor the Power supply voltage and current being applied to the RF Ampliﬁer stages 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 LIST (page 14) C. AC2008 2 KW POWER MODULE The VTX2KWA transmitter is designed with over 8 KW of DC power available to the transmitter.
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PINEAPPLE TECHNOLOGY, INC. V — THEORY OF OPERATION VTX2KW-A Operating and Service Manual THE METER SELECTOR SWITCHES The PAS10 is used to select the appropriate PA Module (V600LDV2) for performance display on the ADP500. PA designations are PA1 starting from the top row going left to right with PA4 being on the right side in the second row down when viewed from the front of the transmitter. The Rotor Switch on the ADP500 is the detail selector for the multi-meter.
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PINEAPPLE TECHNOLOGY, INC. V — THEORY OF OPERATION VTX2KW-A Operating and Service Manual A manual for this equipment is provided by the Manufacture and is included in the VTX2KWA package shipped with the transmitter. This manual is only included if this option was purchased for delivery with the transmitter. REFER TO INSTRUCTION MANUAL PROVIDED WITH THIS PACKAGE F. MODULATOR The heart of any TV Transmitter is the “MODULATOR”.
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PINEAPPLE TECHNOLOGY, INC. V — THEORY OF OPERATION VTX2KW-A Operating and Service Manual I. V600LDV2 POWER AMPLIFIER The V600LDV2 is the main RF Power Ampliﬁer Assembly used in the VTX2KWA. Each Ampliﬁer assembly is made up of ﬁve (5) VH200LD power pallets. Each power pallet uses two (2) Phillips BLF647 power LDMOS FETs. These ampliﬁers are operated in Class A/AB or sometimes referred to as “HARD AB”. This refers to the bias levels to achieve best linearity.
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PINEAPPLE TECHNOLOGY, INC. VI — SCHEMATICS AND PARTS LIST VTX2KW-A Operating and Service Manual VI — SCHEMATICS AND PARTS LIST A.
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PINEAPPLE TECHNOLOGY, INC. VI — SCHEMATICS AND PARTS LIST VTX2KW-A Operating and Service Manual VI — SCHEMATICS AND PARTS LIST A.
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PINEAPPLE TECHNOLOGY, INC. VI — SCHEMATICS AND PARTS LIST VTX2KW-A Operating and Service Manual VI — SCHEMATICS AND PARTS LIST B.
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PINEAPPLE TECHNOLOGY, INC. VI — SCHEMATICS AND PARTS LIST VTX2KW-A Operating and Service Manual VI — SCHEMATICS AND PARTS LIST B.
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PINEAPPLE TECHNOLOGY, INC. VI — SCHEMATICS AND PARTS LIST VTX2KW-A Operating and Service Manual VI — SCHEMATICS AND PARTS LIST B. ACDIS2 — Parts List (Cont.) AssyTreeACDIS2 ACDIS2 AC & DC DISTRIBUTION UTX2KWA TRANSMITTERS Item Qty Rev A Printed 12/22/2004 P/N Title Detail 28 2 453003 HW, TIP JACK BLUE, Insulated Standard TIP JACK 29 1 AC4302 AC CORD GRIP 0.98 OD CABLE 1.3 HOLE MTG ACDIS2 PINEAPPLE TECHNOLOGY, INC.
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PINEAPPLE TECHNOLOGY, INC. VI — SCHEMATICS AND PARTS LIST VTX2KW-A Operating and Service Manual VI — SCHEMATICS AND PARTS LIST C.
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PINEAPPLE TECHNOLOGY, INC. VI — SCHEMATICS AND PARTS LIST VTX2KW-A Operating and Service Manual VI — SCHEMATICS AND PARTS LIST C.
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PINEAPPLE TECHNOLOGY, INC. VI — SCHEMATICS AND PARTS LIST VTX2KW-A Operating and Service Manual VI — SCHEMATICS AND PARTS LIST C. MFA1KW 1.
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PINEAPPLE TECHNOLOGY, INC. VI — SCHEMATICS AND PARTS LIST VTX2KW-A Operating and Service Manual VI — SCHEMATICS AND PARTS LIST C. MFA1KW 1.
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PINEAPPLE TECHNOLOGY, INC. VI — SCHEMATICS AND PARTS LIST VTX2KW-A Operating and Service Manual VI — SCHEMATICS AND PARTS LIST D.
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PINEAPPLE TECHNOLOGY, INC. VI — SCHEMATICS AND PARTS LIST VTX2KW-A Operating and Service Manual VI — SCHEMATICS AND PARTS LIST D.
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PINEAPPLE TECHNOLOGY, INC. VI — SCHEMATICS AND PARTS LIST VTX2KW-A Operating and Service Manual VI — SCHEMATICS AND PARTS LIST D. V600LDV2 1.
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PINEAPPLE TECHNOLOGY, INC. VI — SCHEMATICS AND PARTS LIST VTX2KW-A Operating and Service Manual VI — SCHEMATICS AND PARTS LIST D. V600LDV2 1.
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PINEAPPLE TECHNOLOGY, INC. VI — SCHEMATICS AND PARTS LIST VTX2KW-A Operating and Service Manual VI — SCHEMATICS AND PARTS LIST D. V600LDV2 1. VH200LD (1A0032) — Parts List (cont.) AssyTree1A0032 1A0032 VH200LD PALLET VHF TV HIGH BAND BB 200W AMP Item Qty Rev C Printed 12/22/2004 P/N Title Detail IND CHIP 100nH SMT 0805 32 4 822101 33 10 263301 CAP CHIP ATC 300 PF B CASE 34 2 263750 CAP CHIP ATC 75 PF B CASE 35 2 2635R6 CAP CHIP ATC 5.
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PINEAPPLE TECHNOLOGY, INC. VI — SCHEMATICS AND PARTS LIST VTX2KW-A Operating and Service Manual VI — SCHEMATICS AND PARTS LIST D. V600LDV2 1.
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PINEAPPLE TECHNOLOGY, INC. VI — SCHEMATICS AND PARTS LIST VTX2KW-A Operating and Service Manual VI — SCHEMATICS AND PARTS LIST D. V600LDV2 1.
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PINEAPPLE TECHNOLOGY, INC. VI — SCHEMATICS AND PARTS LIST VTX2KW-A Operating and Service Manual VI — SCHEMATICS AND PARTS LIST E. VS500 4-WAY SPLITTER — Parts List AssyTreeVS500-4 Printed 12/22/2004 VS500-4 VHF HB 4-WAY N CON ISO 100 W DIGITAL/ANALOG Item Qty Top Type CAT User1 Revision A User2 Status U User3 Date 12/11/2002 User4 By RA User5 P/N Title Detail VS500-4 VHF HB 4-WAY N CON ISO 100 W DIGITAL/ANALOG 1 1 MF9243A BASE PLATE, .
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PINEAPPLE TECHNOLOGY, INC. VI — SCHEMATICS AND PARTS LIST VTX2KW-A Operating and Service Manual IN N FO O R T AV MA A TI IL O A N BL E VI — SCHEMATICS AND PARTS LIST F.
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PINEAPPLE TECHNOLOGY, INC. VI — SCHEMATICS AND PARTS LIST VTX2KW-A Operating and Service Manual VI — SCHEMATICS AND PARTS LIST G.
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PINEAPPLE TECHNOLOGY, INC. VI — SCHEMATICS AND PARTS LIST VTX2KW-A Operating and Service Manual VI — SCHEMATICS AND PARTS LIST G.
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PINEAPPLE TECHNOLOGY, INC. VI — SCHEMATICS AND PARTS LIST VTX2KW-A Operating and Service Manual VI — SCHEMATICS AND PARTS LIST G.
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R148 100k +Va L53 0u58 6 5 3 7 R151 100k R149 10k + +Va +5V C101 47n MON_3 - 2 R140 27k R1421k0 47n 1 LM358 U53A R152 56k C91 3 2 + R158 100k C102 47n + 1k0 R157 C97 100k 4u7 16V D96 HSMS2802 R150 2k7 LM358 U52B R138 1k0 + C90 2u2 16V + C93 2n2 C95 47n C99 47n U53B 7 Q4 MMBT2222A + - R165 930 C100 47n +Va 6 5 LM358 R167 1k0 3 2 C88 47n LM358 U52A R141 10k + R145 100k R156 + L54 bead C103 47n 1 MON_2 1k0 R144 +5V C104 10u 10V + - PC9055
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A B C D .1U C37 .1U 9 C31 1 11 6 5 2 1 CLK D 100K 2 .1U C40 .1U C32 +5V Q Q 13 5 SHUTDOWN VALID TIME = 7.8 SEC +5V +5V MC14011 U18D 4 3 .1U C41 .1U C33 MC14013 12 13 U20B .1U C76 12 MC14071 U16B MC14071 U16A +5V R129 .1U C39 .1U +5V TIME DELAY TO FAULT VALID = 1.1 SEC /VIDOFF PSFLT ISOFLT TEMPFLT .1U +5V C38 .
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VTX2KW-A Operating and Service Manual D C AUX C3 FT 2 2 1 1 2 1 2 C4 FT C7 FT C9 FT C11 FT 2 2 2 2 1 2 3 4 JP5 2 2 2 HEADER 4 C13 FT C15 FT C17 FT U8A MC14011 U8B MC14011 LC2 F22 F20 FERRITE BEAD FERRITE BEAD LC3 3 4 1 1 C82 FT C84 FT 15 1 2 3 6 10 11 12 9 2 2 15 1 2 3 6 10 11 12 9 U1 W0 W1 X0 X1 Y0 Y1 Z0 Z1 4 MC14551 CTL U2 W0 W1 X0 X1 Y0 Y1 Z0 Z1 CTL 2 1 LC1 F21 1 FERRITE BEAD 13 5 4 14 EXPIN C83 FT TO EXPANDED SCALE CKT X W Z Y X W
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A B C D OP20 OP18 OP19 OP17 OP16 OP15 OP14 OP11 OP12 OP13 OP10 OP9 OP8 OP7 OP3 OP4 OP5 OP6 5 6 4 7 13 14 U5 5 Q0 Q0 Q1 Q1 Q2 Q2 Q3 Q3 MC14042 CLK POL D0 D1 D2 D3 2 3 10 9 11 12 1 15 +5V +5V +5V +5V S S S S 2 2 2 2 2 R65 1 1 1 1 1.
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PINEAPPLE TECHNOLOGY, INC. VI — SCHEMATICS AND PARTS LIST VTX2KW-A Operating and Service Manual VI — SCHEMATICS AND PARTS LIST G. PAS10 & ADP500 MONITOR 1.
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PINEAPPLE TECHNOLOGY, INC. VI — SCHEMATICS AND PARTS LIST VTX2KW-A Operating and Service Manual VI — SCHEMATICS AND PARTS LIST G. PAS10 & ADP500 MONITOR 1. 1A0029 — Parts List (cont.) Assy Tree for: 1A0029 1A0029 ADP1000 LOGIC PCB LOGIC BRD PARTS Item 31 Qty 3 Rev A Printed 12/22/2004 P/N Title Detail 21Y022 CAP SM 1206 47 NF 50 V 32 1 1163321 RES CHIP 1206 3.32 K OHM 1% 33 1 1162252 RES CHIP 1206 25.
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PINEAPPLE TECHNOLOGY, INC. VI — SCHEMATICS AND PARTS VTX2KW-A Operating and Service Manual VI — SCHEMATICS AND PARTS LIST G. PAS10 & ADP500 MONITOR 1.
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PINEAPPLE TECHNOLOGY, INC. VI — SCHEMATICS AND PARTS VTX2KW-A Operating and Service Manual VI — SCHEMATICS AND PARTS LIST H.
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PINEAPPLE TECHNOLOGY, INC. VI — SCHEMATICS AND PARTS VTX2KW-A Operating and Service Manual VI — SCHEMATICS AND PARTS LIST H.
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PINEAPPLE TECHNOLOGY, INC. VII — ROUTINE MAINTENANCE VTX2KW-A Operating and Service Manual VII — ROUTINE MAINTENANCE The following KEY MAINTENANCE AND PERFORMANCE CHECKS should be made monthly or more frequently in some environments where dust is a problem: TRANSMITTER • Remove and clean the air ﬁlters with a light detergent and dry completely before re-installing. Dirty ﬁlters will cause PA amps to shutdown resulting in a loss of RF Power.
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PINEAPPLE TECHNOLOGY, INC. VIII — ADJUSTMENTS AND TUNING VTX2KW-A Operating and Service Manual VIII — ADJUSTMENTS AND TUNING The VTX2KWA is basically a broadband transmitter with a few frequency selective sub-assemblies which comply with FCC Type Certiﬁcation requirements. A list of these sub-assemblies are listed below and followed by general instructions where applicable: A. MODULATOR Instructions for making adjustments to the modulator are included in the Manufacturer’s Instruction Manual B.
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PINEAPPLE TECHNOLOGY, INC. VIII — ADJUSTMENTS AND TUNING VTX2KW-A Operating and Service Manual D. PHASE MATCHED CABLES: The cables used to connect the splitter to the PA Ampliﬁer inputs and those provided to connect the PA Ampliﬁers to the combiner are phase matched. If a cable is damaged and needs to be replaced, additional cables are available from Pineapple Technology Inc. The customer my manufacture additional cables, however the same coax type, connector, and lengths must be used. E.
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PINEAPPLE TECHNOLOGY, INC. IX — PROBLEM SOLVING/TROUBLE SHOOTING VTX2KW-A Operating and Service Manual IX — PROBLEM SOLVING The VTX2KWA is a complex assembly of Digital and Analog circuits and in many cases it is advisable to contact Pineapple Technology Inc for assistance. If it is necessary to perform ﬁeld service on the transmitter, most parts are available from Pineapple Technology Inc for next day shipment. The failure analyzes of the transmitter starts off with the following assumptions: A.
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PINEAPPLE TECHNOLOGY, INC. IX — PROBLEM SOLVING/TROUBLE SHOOTING VTX2KW-A Operating and Service Manual to the fan. There is also a fuse located just inside of the front panel in case there is a locked rotor failure condition. To access the fuse, the MFA1KW must be removed for the rack and the top cover removed. The fuse is located just behind the front panel. ADP500: There are a number of fault indicator lights on this unit that can be used for trouble shooting possible problems with the transmitter.
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PINEAPPLE TECHNOLOGY, INC. X — WARRANTY VTX2KW-A Operating and Service Manual X — WARRANTY 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 original manufacture that differs from the standard warranty provided by PTI Warranty details on equipment falling into this category may be found in the Manufactures instruction manual provided with the transmitter.
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PINEAPPLE TECHNOLOGY, INC. XI — EXTENDED WARRANTY VTX2KW-A Operating and Service Manual XI — OPTIONAL EXTENDED WARRANTY Pineapple Technology, Inc. transmitters come with the option of extending the standard warranty for up to 5 years. To exercise this option, the purchaser must buy and pay for the option at the time the transmitter is purchased.