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dB PM 1000 User Manual

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DB
ELETTRONICA TELECOMUNICAZIONI S.p.A.
PM 1000
1 kW FM Broadcasting Transmitter
User's Manual
Release 1.0.1
- DB ELETTRONICA TELECOMUNICAZIONI S.p.A. -
- Riviera Maestri del Lavoro 20/1 - 35127 Z.I. SUD PADOVA ITALY -- Ph. (049) 870-0588 - Fax. (049) 870-0747 -
- http://www.dbbroadcast.com -
1 /101
PM 1000 – 1 kW FM Broadcasting Transmitter - U
'
M
SER
S
ANUAL

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  • Page 1 - DB ELETTRONICA TELECOMUNICAZIONI S.p.A. - - Riviera Maestri del Lavoro 20/1 - 35127 Z.I. SUD PADOVA ITALY -- Ph. (049) 870-0588 - Fax. (049) 870-0747 - - http://www.dbbroadcast.com - 1 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 2 This installation should be done by a qualified person and should comply with to all local applicable laws. NOTICE: ALL THE SPECIFICATIONS AND TECHNICAL INFORMATION IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE. 2 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

  • Page 3: Table Of Contents

    STEREO ENCODER PARTS LIST ......................... 96 APPENDIX ................................99 12.1 APPENDIX A - XLR AUDIO CONNECTORS PINOUTS ................99 12.2 APPENDIX B - MOSFET REPLACEMENT ....................100 3 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

  • Page 4: Pm1000 Fm Transmitter

    (/C option). The minimum frequency step is 10 kHz. The transmitter has high frequency stability, due to the use of the Digital Phase Locked Loop system and a very low drift reference quartz. 4 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 5 LP filter ensures a pure RF spectrum, compatible with the most stringent international requirements. As well, a high efficiency switching mode power supply reduces the power consumption, and ensures reliable operation. 5 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 7 5) Remote shut-down indicator 11) Lock frequency indicator 17) Ipa current measure indicator 6) Indicator of the on/off transmitter state 12) Manual/Remote selector 18) Frequency deviation measure indicator 7 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 8 11) Right channel input level adj. 17) MPX Out BNC connector 6) SCA3 level adj. 12) Right channel input XLR connector 18) AUX input BNC connector 8 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 9 6) Remote control board 2) Output filter 7) Protection board (controls) 3) Output coupler 8) Protection board (panel) 4) AMP300, 300 W amplifier boards 5) Switching power supply board 9 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 10 5) Power supply board 0601-008 2) Coder stereo board 6) Measure boards 3) Contraves board (/C option) 7) AMP30, 30 W pre-amplifier board 4) Power supply board RS 75-24 10 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

  • Page 11: Technical Specifications

    Attenuation of frequencies ≥ 19 kHz ..................≥50 dB Preemphasis .......................... 50/75 μsec S/N ratio (± 75 kHz peak dev. with 1 kHz input, 50μs de-emphasised) ........≥75 dB THD+N (± 75 kHz peak dev. with 1 kHz input, unweighted) ............. ≤0.1% Stereo operation (with stereo coder included in /S model) L &...
  • Page 12 Dimensions (W x H x D) ..................483 x 136 x 522 mm OPTIONS External frequency setting (/C) Stereo coder (/S) Audio processor (/P) Remote control (/R) Battery operation (/VDC) 12 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

  • Page 13: Installation

    10 % of the nominal main supply voltage and is designed to support main supply spikes, although it is preferable to use the main voltage stabilisers to reduce the risk of damage. 13 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

  • Page 14: Frequency Change

    8 - Select 5.84 - 5.12 = 0.72 MHz, the minimum weight, lower than or equal to 0.72 MHz, is 0.64 MHz, then put off the corresponding switch. 14 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 15 9 - Select 0.72 - 0.64 = 0.08 MHz, there is a weight equal to 0.08 MHz, so put in OFF position the corresponding switch to complete the setting. The final configuration is: 10 - Adjust the desired output power using the “PWR” front panel potentiometer. 15 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

  • Page 16: Adjustments And Measures

    “DEV” front panel potentiometer (Fig. 1.1): look at the front panel meter and select the DEV measurement by means of the selection button “READINGS SELECTOR” (Fig. 1.1). 16 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

  • Page 17: External Control And Measures

    When it is light on, shown that power output has zero worth because of a remote external impulse. ⇒ “UNBAL” led: It shows the unbalancing between the two AMP300 amplifier modules, thus an equipment malfunction. 17 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

  • Page 18: Measures / Controls Section

    “ REMOTE/MANUAL”. This switch and the relative led will be unused if the transmitter is not equipped with the remote control board option. 18 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 19 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig.3.1 – PM1000 GENERAL BLOCK DIAGRAM 19 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

  • Page 20: General Block Diagram Description

    B) Protection and control board (DB 9601-002) for monitoring and controlling all principal transmitter parameters. C) PM 1000 Power Supply Stage. For driving the RF section there is a mains switching board, giving the correct power supply (45V) for each 300W RF amplifiers. An other switching module (DB 0206_090) is dedicated for protection and control board, meter stage, Modulator board, AMP30 Driver stage and all optional boards.

  • Page 21: Amplifier Section

    4.2 30 W PREAMPLIFIER/DRIVER STAGE The amplifier stage is realized by the new 30W MOSFET amplifier board (DB 0110_010A). This board is basically composed of four amplification WIDE BAND stages. The first stage uses a BFQ19 transistor to amplify the input level. The second and the third transistors are 2N4427.
  • Page 22 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 4.1 - AMP30 PRE AMPLIFIER ELECTRICAL SCHEMATIC 22 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 23 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 4.2 - AMP30 PRE AMPLIFIER COMPONENT LAYOUT (DB 0110_010A) 23 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

  • Page 24: Amp30 Pre Amplifier Parts List

    18Ω 1206 150Ω 1206 10Ω 1206 R20,R21,R24 10KΩ 1206 220KΩ 1206 100KΩ 1206 R43A,R43 220Ω 1206 2K7Ω 1206 P=20mm φ=5mm 220Ω LM7815 TRAD TO220 NE555 SO08 24 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

  • Page 25: Amp300 300 W Module Amplifier

    - 87.5 - 108 MHz frequency range - 43 Vds Supply voltage between drain and source - 75% minimum efficiency (78% typical) - 300 W Output Power with 17 dB minimum gain (18 typical) 25 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’...
  • Page 26 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 4.3 - AMP300 AMPLIFIER ELECTRICAL SCHEMATIC 26 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 27 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 4.4 - AMP300 AMPLIFIER COMPONENT LAYOUT (DB 9812_001) 27 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

  • Page 28: Amp300 Amplifier Parts List

    1N4148 C.S.9704_015 STAMPATO 6 TURNS 17cm 0.8RS FERR2TUBE BLF278 R1,R2 22K 1206 R3,R4 5K6 1206 150K 1206 SMD R6,R7,R8,R9 22R 4W TP1,TP2 CPFXCS FASTON 2TUBEOTTx2cm+TEFLON RSx20cm 28 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 29 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 4.5 - INPUT SPLITTERS (DB 9701_001 + DB 9702_007) 29 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 30 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 4.6 - OUTPUT COUPLERS (DB 9702_008 +DB 9701_002A) 30 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 31 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 4.7 - OUTPUT LOW PASS FILTER (DB 9901_001) Fig. 4.8 - DIRECTIONAL COUPLER (DB 9901_003) 31 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

  • Page 32: Power Supply Stage

    3. the power supply voltages at the output of the switching regulators are constant even in case of wide main fluctuations (± 15 %). 32 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 33 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 5.1 – MAINS SWITCHING BOARD LAYOUT 33 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 34 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 5.2 – POWER SUPPLY 04011-001 ELECTRICAL DIAGRAM (1) 34 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 35 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 5.3 – POWER SUPPLY BOARD 04011-001 ELECTRICAL DIAGRAM (2) 35 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

  • Page 36: Power Supply Board 04011-001 Parts List

    DZ18V-0W5 D90,D91,D92,D93,D94,D95, BA159 DPBA159 BYV26C DPBYV26C ISL9R1560G2 DMISL9R1560G2 D49,D61 43V 1W DZ43V-1W D50,D62 SB140 DPSB140 BAT85 DPBAT85 MUR 1640CT 04011-001-FR1 220G - FR1 JP1,JP6,JP17,JP26,JP27 STREEP1 CTST40PM0911D 36 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 37 R133,R138,R139,R143 220K 1/8 RC220KW12J R80,R223,R224 56K 2 RM056K02WK R93,R92 270K RC270KW25J RC012RW25J R99,R103,R175 2K2 1/8 RC02K2W12J R111,R102 13K 1/8 RM013KW12F R104 100K 1/8 RC100KW12J R105 RC270RW25J 37 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 38 LEM LA 55-P 220G - T2 E 32/16/9 T4,T3 220G - T3 r1 EFD 15 U14,U1 TL431 VRTL431N U2,U3,U12,U13,U20,U21, BOLLA LS U24,U26,U27,U30,U32,U33 LM7812CT VRLM7812CT ML4826CP2 CIML4826CP2 LM393 CILM393 38 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

  • Page 39: Rs-75-24 Switching Power Supply

    Voltage range 88 – 264 VAC Frequency range 47 – 63 Hz Efficiency INPUT AC current 2A/115VAC 1.2A/230VAC Inrush current (max) Cold start 40A/230VAC Leakage current <2mA/240VAC 39 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 40 10 – 500 Hz, 5G 10min/1cycle, period for 60 min. each along X,Y,Z axes MTBF 265 Khrs min OTHERS Dimension 129/97/38 mm (L/W/H) Weight 0.41 kg 40 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 41 ELETTRONICA TELECOMUNICAZIONI S.p.A. 41 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

  • Page 42: 0601-008 Power Supply Board

    The protection and measure boards are supplied with an independent power supply boards that furnish the +/- 12 Volts and +/- 5 Volts to the two boards. It is positioned near the display board. Fig. 5.4 – POWER SUPPLY FOR MEASURE BOARD LAYOUT (DB 0601_008) 42 /101 PM 1000 –...
  • Page 43 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 5.5 – POWER SUPPLY FOR MEASURE BOARD ELECTRICAL DIAGRAM 43 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

  • Page 44: Power Supply Part List

    IND_TOR L2,L4 150µH IND_TOR_P 150µH IND_TOR R1/4W R1/4W R3,R8 R1/4W 9K1 1% R1/4W R5,R10 TRIM_PTH_V R1/4W R1/4W R1/4W L4971 DIP8 LM2591 TO-220-5PIN 7805 78XXTO220 7905 79XXTO220 44 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

  • Page 45: Modulator Stage

    (20Hz to 15kHz with ± 0.25 dB) and an optimum out of band attenuation (>50 dB for frequencies higher than 19 kHz), then the signal is amplified (or attenuated) and passed to the VCO oscillator for the FM carrier modulation.

  • Page 46: Sintel '96 Modulator Board

    ELETTRONICA TELECOMUNICAZIONI S.p.A. 6.2 SINTEL ‘96 MODULATOR BOARD Fig. 6.1 - MODULATOR BOARD GENERAL ELECTRICAL SCHEMATIC 46 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 47 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 6.2 - PLL STAGE ELECTRICAL SCHEMATIC 47 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 48 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 6.3 - VCO STAGE ELECTRICAL SCHEMATIC 48 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 49 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 6.4 - L.F. STAGE ELECTRICAL SCHEMATIC 49 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 50 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 6.5 - L.F.2 STAGE ELECTRICAL SCHEMATIC 50 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 51 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 6.6 - FILTER STAGE ELECTRICAL SCHEMATIC 51 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 52 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 6.7 - MODULATOR BOARD COMPONENT LAYOUT (DB 9604-010) 52 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

  • Page 53: Modulator Board Parts List

    220p CER C88,C89,C90 C126,C93 100p C103 100n CP1 C106 100n C107 68p CER C113 1p CER C125 C127 C128 10n multistrato D3,D12,D13,D15,D16,D17, 1N4148 D4,D6,D9,D10 5V1 ZENER 53 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 54 100 RES 1/8W 680R 1/8W R45,R44 31K6 1% 1/4W R47,R46 10K 1% 1/4W R48,R49 169K 1% 1/4W R138,R50 R51,R137 3K3 RES 1/8W R53,R57,R71,R72 4K7 RES 1/8W 54 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 55 220R RES 1/8W R128 100R RES 1/8W R129 330R RES 1/8W SW2,SW1 DIP SW 8 TP1,TP4,TP5,TP6,TP7,TP8, TP10 MC145152 U2,U19 TL082 78L05 MB501L 78L08 U10,U16,U17,U18 TL084 74HC14 2.56MHz 55 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

  • Page 56: Protection Board

    ELETTRONICA TELECOMUNICAZIONI S.p.A. 7. PROTECTION BOARD Fig. 7.1 - PROTECTION BOARD N°1 GENERAL SCHEMATIC 56 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 57 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 7.2 - GATES CONTROL STAGE ELECTRICAL SCHEMATIC 57 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 58 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 7.3 - UNBALANCING STAGE ELECTRICAL SCHEMATIC 58 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 59 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 7.4 - POWER LIMITING STAGE ELECTRICAL SCHEMATIC 59 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 60 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 7.5 - TEMPERATURE PROTECTION STAGE ELECTRICAL SCHEMATIC 60 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 61 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 7.6 - PROTECTION BOARD N°1 COMPONENT LAYOUT (DB 9702-004) 61 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

  • Page 62: Protection Board N°1 Part List

    R25,R127 1K RES 1/8W R34,R36,R42,R44 10K RES 1/4W 1% R87,R37 3K3 RES 1/4W R38,R46,R130 1M RES 1/8W 5K62 RES 1/4W 1% R41,R48,R117 1K RES 1/4W 1% 62 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 63 2K2 RES 1/4W R120 8K66 RES 1/4W 1% R122 3K3 RES 1/8W R123 22K RES 1/8W R125 15K RES 1/8W R126 47K RES 1/8W U1,U2,U3 TL084 79L05 TL082 63 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 64 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 7.7 - PROTECTION BOARD N°2 GENERAL SCHEMATIC 64 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 65 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 7.8 - PROTECTION STATUS STAGE ELECTRICAL SCHEMATIC 65 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 66 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 7.9 - POWER SUPPLY STAGE ELECTRICAL SCHEMATIC 66 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 67 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 7.10 - MEASURES ADJ. STAGE ELECTRICAL SCHEMATIC 67 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 68 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 7.11 - LED INDICATIONS STAGE ELECTRICAL SCHEMATIC 68 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 69 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 7.12 - PROTECTION BOARD N°2 COMPONENT LAYOUT (DB 9703-011) 69 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

  • Page 70: Protection Board N°2 Part List

    1K2 RES 1/4W R139,R143,R146,R149 47K RES 1/8W R160 1K RES 1/4W 1% R161 8K66 RES 1/4W 1% R162,R163,R164,R165 1R RES 1/4W U11,U4 TL084 U7,U12 UA78S40 U8,U13 LT1054 70 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

  • Page 71: Meter Stage

    8.1 GENERAL DESCRIPTION The meter stage is built using two boards: The ST62T25 microprocessor board DB 9903_040 The display board DB 9903_050 is composed of forty LED bargraph display. 71 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’...
  • Page 72 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 8.1 – METER BOARD DB 0007_040 ELECTRICAL SCHEMATIC 72 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 73 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 8.2 - METER BOARD DB 0007_040 COMPONENT LAYOUT 73 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 74 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 8.3 - METER BOARD DB 0007_050 ELECTRICAL SCHEMATIC 74 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 75 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 8.4 - METER BOARD DB 0007_050 COMPONENT LAYOUT 75 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

  • Page 76: Meter Boards Parts List

    RISUONATORE CERAMICO 47KR 1/4W R4,R5,R8 4K7R 1/4W R9,R10,R12,R13,R16, 1KR 1/4W R17,R18,R36,R40 R11,R14,R19,R20,R21, 10KR 1/4W R22,R34,R38,R42 680R 1/2W R30,R32 2K2R 1/4W R31,R33 33KR 1/4W R35,R39,R41 100KR 1/4W 76 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 77 PULSMOZART S1,S2 SLITTA C&K ZOCCOLO 28 LARGO (ST6225) I.C.ULN2803 or TD72083 I.C. 4028 U4,U5,U6,U7 LEDBAR DC10GWA KINGBRIGTH I.C.TL084 I.C.74HC32 78L05 RISUONATORE CER.4MHz QUARZO 4MHz STAMPATO DB0007_040 77 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

  • Page 78: In-Audio Board

    ELETTRONICA TELECOMUNICAZIONI S.p.A. 9. IN-AUDIO BOARD Fig. 9.1 - IN-AUDIO BOARD ELECTRICAL SCHEMATIC 78 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 79 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 9.2 - IN-AUDIO BOARD COMPONENT LAYOUT (DB 9909_010) 79 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

  • Page 80: In-Audio Board Parts List

    4n7F POL. JP1,JP2,JP3,JP4,JP5 STRIP3M CNM20V J2,J3 CNM14V J4,J10,J20 CNM10V J5,J6,J7,J8,J11,J12,J13,J14 BNC90CS L1,L2,L3,L4 10uH PR,PL XLRF90CS RL,RR 5K 10GROP 470R 1/4W TMPX 10K 10GROP TSC1,TSC2,TSC3 1K 10GROP 80 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

  • Page 81: In-Audio Board Jumpers Setting

    ELETTRONICA TELECOMUNICAZIONI S.p.A. 9.2 IN-AUDIO BOARD JUMPERS SETTING 81 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

  • Page 82: Transmitter Options

    The /S option has a built-in digital stereo coder with stereo separation in excess of 65 dB and a SNR of more than 80 dB. The /P option includes a stereo audio processor with a wide range compression threshold, attack and release time adjustments and full compatibility with digital audio mixing consoles.
  • Page 83 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 10.1 - EXTERNAL FREQUENCY CONTROL ELECTRICAL SCHEMATIC 83 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

  • Page 84: External Frequency Control Parts List

    CONN 10 C2,C1 10p cer C3,C4,C6 C5,C7,C8 100n pol D1 - D22 1N4148 LED d3 JP1,JP2,JP3,JP4,JP5, jumper JP6,JP7,JP8,JP9,JP10 R1,R2,R3,R4 R8,R7 S1,S2,S3,S4,S5 CONTRAVES 78L05 MC68HC705C8P 2-4 MHz 84 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

  • Page 85: Stereo Encoder Board (/S Option)

    To disable preemph you have to remove both jumpers; to get a 50 us preemph, you have to insert only JP6; if you want a 75 us preemph both JP5 and JP6 must be inserted. 85 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 86 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 11.1 - STEREO ENCODER GENERAL ELECTRICAL SCHEMATIC 86 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 87 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 11.2 - L/R PEAK DETECTOR STAGE ELECTRICAL SCHEMATIC 87 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 88 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 11.3 - INPUT STAGE ELECTRICAL SCHEMATIC 88 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 89 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 11.4 - RIGTH FILTER STAGE ELECTRICAL SCHEMATIC 89 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 90 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 11.5 - LEFT FILTER STAGE ELECTRICAL SCHEMATIC 90 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 91 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 11.6 - OSCILLATOR STAGE ELECTRICAL SCHEMATIC 91 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 92 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 11.7 - 19 KHz STAGE ELECTRICAL SCHEMATIC 92 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 93 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 11.8 - 38 KHz STAGE ELECTRICAL SCHEMATIC 93 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 94 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 11.9 - OUTPUT STAGE ELECTRICAL SCHEMATIC 94 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 95 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 11.10 - STEREO ENCODER COMPONENT LAYOUT 95 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

  • Page 96: Stereo Encoder Parts List

    330n poly C99,C100,C101,C103,C104, 4n7 polistirene C105 C127 100p cer np0 C128 680p cer np0 C129 C130,C134 C132,C131 47u TANTALIO C133 1n poly D1,D2,D3,D4 1N4148 JP2,JP1 jumper 96 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 97 50k trim multi 20k 1/4W 1% 825R 1/4W 1% 1k5 1/4W 20k trim multi 15k 1/4W 0R 1/4W R48,R49 10k 1/8W R50,R51 100k 1/8W R52,R60 680R 1/4W 97 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 98 100R 1/4W R126 R127 10k 1/4 W 1% 4001 4024 4013 U4,U5,U12,U13 4035 U6,U16,U23,U24,U25,U26 MC33079 U7A,U7,U18B,U27 NE5532 4066 U9,U10,U11 4053 U14,U15 TL084 U19,U22 TL082 7805 7905 2.432MHz 98 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

  • Page 99: Appendix

    Connection procedure to connect the audio signal cables to the XLR female connectors for a balanced or unbalanced signal. XLR FEMALE XLR CONNECTOR PIN BALANCED SIGNAL UNBALANCED SIGNAL ground ground " " ground " " signal – 99 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

  • Page 100: Appendix B - Mosfet Replacement

    MOSFET: to do this compress or expand manually the input circuit coil (see ) to maximise the output power. 100 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...
  • Page 101 ELETTRONICA TELECOMUNICAZIONI S.p.A. Fig. 12.1 – MOSFET REPLACEMENT ON THE AMP300 BOARD 101 /101 PM 1000 – 1 kW FM Broadcasting Transmitter - U ’ ANUAL...

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