Beko HLV-350 Instruction & Operation Manual Download | Manualshive

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11. Block diagram

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Summary of Contents for HLV-350

Page 1: ...1 HLV 350 Instruction Operations Manual ...

Page 2: ...instructions 5 4 Electrical connections 6 5 Warranty 7 6 Front panel operation 8 7 Protection circuits 9 8 Receive Transmit switching 10 9 Remote control 11 10 Cooling technique 12 11 Block diagram 13 12 Adjustment of protection thresholds 14 13 Control circuit schematic 15 14 tbt ...

Page 3: ...8 EC and 99 5 EC EN 301 783 1 V1 1 1 2000 09 EN 301 783 2 V1 1 1 2000 09 EN 301 489 1 V1 6 1 2005 09 EN 301 489 15 V1 2 1 2002 08 EN 60950 1 2006 All necessary test procedures have been successfully passed Manufacturer and authorized representative BEKO ELEKTRONIK Am Längenmoosgraben 1a D 85221 Dachau GERMANY This declaration has been accomplished under unique reponsability of the manufacturer BEK...

Page 4: ...range with a selectable gain of 17 db The internal modulated power limit is kept to 500 watts It s design is based on NXP s rf transistor BLF6G13L 250P Each of the two amplifier blocks is protected by a separate circulator before final 2 1 combining This insures high ruggedness and independence on any load mismatch as well as high linearity and spectral purity It is essential that the driving sour...

Page 5: ...dity of less than 85 In order to avoid malfunction caused by condensation you will have to wait at least one hour before start of operation and until the condensation has been removed 6 To prevent electrical shock do not remove the cover before disconnecting the mains plug 7 The bottom openings are used as a cooling air inlet and the rear side outlet to exhaust the inside generated heat They must ...

Page 6: ...eshold voltages of the protection circuits Operation with no load connected is not allowed 5 The RF connectors are N type Only high quality connectors with PTFE insulation must be used Neglecting will cause overload and damage of the connectors and shifting of the thresholds of the protection circuits Special care must be taken when connecting the output cable to the output connector If large and ...

Page 7: ...ll claims on warranty The device is protected by an invisible seal against opening Damage of the seal will invalidate the warranty Warranty is also excluded if damages are caused by 1 Overdrive with power levels 75W or with power peaks caused by insufficient ALC control of the driving source 2 Feedback oscillations due to direct radiation caused by too small distance between antenna and amplifier ...

Page 8: ...off the preamplifier When returning to receive it turns the preamplifier on after switching off the RF power unit The supply voltage for the use of an external preamplifier is available on pin 4 of the CONTROL jack at the rear panel It is short circuit protected by use of a ptc fuse and supplies 15 volts 750 mA For preamps that can accept voltage feed via the coaxial cable can t be fed by this amp...

Page 9: ...onnected from the mains when disabling the audible alarm 7 Protection circuits The HLV 350 s internal control circuit supervises the output load condition any overdrive of the input stage and the thermal status of heat sink and power supply unit If the amount of reflected power exceeds 100 watts the protection circuit shuts off the RF unit immediately and switches the drive power to bypass mode Th...

Page 10: ...nner contact of the rear sided AUX jack to reliably control a connected transceiver Any potential at the inner conductor is switched to ground In essence your amplifier provides a built in multi level sequencer which provides an alternate means to key your radio last When the amplifier PTT is activated usually via a foot switch the preamp voltage is dropped first internal relays are switched the R...

Page 11: ...nitored 100 of output power is equal to 10V DC on Pin 5 Use the 7 pin DIN plug that was delivered with your amplifier and connect the other end to a suitable connector to your transceiver or other switching unit Option Output relay ext PREAMP 15V DC 5K Shield 100 power level 10V DC POWER ext 6 7 ext switch box Alarm out 4 8V PTT RESET PREAMP 1 mA 5 4 3 2 1 Remote control HLV 350 ...

Page 12: ...se of the RF pc board and the capacitors To achieve best airflow for cooling the air in and outlets must not be covered Do not operate the amplifier in close proximity to heaters and radiators If thermal shut down occurs you should wait until the device temperature decreases sufficiently before switching on the amplifier again Please read also our Safety instructions and Electrical connections ATT...

Page 13: ...13 11 Block diagram ...

Page 14: ... are too sensitive and need some slight correction In the picture below all trimpots incl their functions are shown Turning the slots clockwise is equal to or upward direction and verse vice Readjustment should be done very carefully otherwise the effect of protection is cancelled ...

Page 15: ...15 HLV 2000 0 500 1000 1500 2000 2500 0 2 5 5 7 5 10 12 5 15 17 5 20 22 5 25 27 5 30 32 5 35 Input power W Output power W ...

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