Broadcast Electronics PNP 1000 Manual Download

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PLUG–N–PLAY 1000
1000 WATT DIGITAL
FM TRANSMITTER

April, 2002

IM No. 597–9972

Summary of Contents for PNP 1000

Page 1: ...PLUG N PLAY 1000 1000 WATT DIGITAL FM TRANSMITTER April 2002 IM No 597 9972 ...

Page 2: ...nput POWER SUPPLY INDICATORS The DSP circuit board is equipped several power supply status indicators Indicator D15 illuminates when the 10V dc supply is operational Indicator D5 illuminates when the 1 8V dc supply is operational Indicator D7 illuminates when the 2 5V dc supply is operational Indicator D4 illuminates when the 3 3V dc supply is operational Indicator D11 illuminates when the 5V dc s...

Page 3: ...lt indicator illuminates when the AC voltage is outside the operating range required for the pow er supply This range is 95 132 or 190 264 depending on the AC input configuration POWER SUPPLY FAULT INDICATOR The power supply fault indicator will illluminate when the power supply registers a fault condition The power supply fault conditions are as follows 1 48V is out of regulation 8V or 1V 2 12V s...

Page 4: ...nalog left channel and right channel 2 AES EBU wire 3 AES EBU optical 4 S PDIF and 5 composite The following text along with Figure 3 presents the procedure to connect and program the unit for the desired audio input ANALOG INPUT CONNECTIONS Analog left and right channel audio is interfaced to the PNP 1000 at connector J2 Connect the analog left and right channel audio to J2 as follows AUDIO SIGNA...

Page 5: ...ed to automatically detect and select the composite input when a pilot is present If no pilot is detected the analog left right channel input will be selected However the unit can be programmed to select 1 only the composite input J5 on positions 2 3 or 2 only the analog left right channel input J5 on re moved or 3 autodetect J5 on positions 1 2 The unit is shipped from the factory for automatic s...

Page 6: ...n The command can be activated using positive or negative control Positive control requires 1 the use of a momentary or sustained contact to a 5 volt to 12 volt dc signal to disable transmitter operation Negative control requires 1 the use of a momentary or sustained contact to ground to disable transmitter opera tion The positive or negative control is established with the R C IN Common pin locat...

Page 7: ...nto the PNP 1000 RF output exceeds 40 watts The transmitter will maximize power output just below the 40W threshold when high reflected power is detected FORWARD POWER METER OUTPUT The remote forward power meter output is located at J1 11 The forward power meter will output 2 volts dc when the transmitter output is 1000 watts Circuit ground is recommended for remote metering connections REFLECTED ...

Page 8: ... channel input ground is located at J2 3 The input impedance can be configured for 600 Ohms or 10 k Ohms The input level can be configured for 10 dBm 0 dBm 4 dBm or 8 dBm ANALOG LEFT CHANNEL INPUT The analog left channel input is located at J2 9 The analog left channel input is located at J2 10 The ana log left channel input ground is located at J2 11 The input impedance can be configured for 600 ...

Page 9: ...djust the RF output proceed as follows Refer to Figure 2 1 Operate the front panel menu to read forward power by pushing the menu up or menu down buttons 2 Turn the transmitter on by pressing the TX ON button 3 Use the raise and lower buttons on the front panel to adjust to desired power level AUDIO INPUT LEVEL ADJUSTMENTS AUDIO INPUT LEVEL ADJUSTMENT The transmitter audio input level must be prop...

Page 10: ... 100 However the audio input will be adjusted to a level ensuring audio input overload and clipping will not occur COMPOSITE The composite input level is adjusted at the factory for 100 modulation with a 3 5 volt peak to peak input level The input level is adjusted by composite input level control R11 on the rear panel circuit board If re adjustment of the input level is required proceed as follow...

Page 11: ...nd clipping Ensure the level does not exceed 3 5 volts peak to peak SCA The SCA input audio level is adjusted by using the output level control on the audio source To adjust the level to obtain the desired modulation proceed as follows 1 Connect an SCA decoder to the modulation monitor 2 Operate the front panel breaker to ON 3 Depress the front panel ON switch indicator to illuminate the switch in...

Page 12: ...47 PNP 1000 SCHEMATICS ...

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