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Tokyo Hy-Power HL-550FX User Manual

Solid-state hf/50mhz band 550w linear power amplifier
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Users Manual
Solid-State HF/50MHz Band
550W Linear Power Amplifier
Model HL-550
FX

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Summary of Contents for Tokyo Hy-Power HL-550FX

  • Page 1 Users Manual Solid-State HF/50MHz Band 550W Linear Power Amplifier Model HL-550...
  • Page 2 Introduction Thank you for purchasing the HL-550 This compact and lightweight desktop HF linear power amplifier has a maximum input power of 1.2kW. Our solid-state broadband power amp technology makes it the smallest and lightest in the industry in its class. Typical output power is 550W (SSB, CW) with the drive power of 65-90W.
  • Page 3 The amplifier has fast acting sophisticated protection circuits. Please note, however, any such actions that cause the same fault to occur repeatedly, will lead to failure of the valuable final power FET transistors. Before checking inside the amplifier, be sure to wait a few minutes for the high DC voltage to discharge (monitor Vd meter reading).
  • Page 4 Features Our solid-state broadband design engineers worked to make the HL-550FX, the lightest and most compact 550W out portable HF/50MHz amplifier in the industry. This world-class compact 550W HF amplifier is the easiest to handle and operate anywhere in the world.

  • Page 5: Specifications

    Specifications Frequency Band 1.8~50 MHz all amateur bands including WARC bands Mode SSB, CW (RTTY) RF Drive 65~90W typ. (100W max.) Output Power HF: 550W typ., 50MHz: 500W (RTTY, SSTV, FM 250W max.) (When set to AC100V-120V, 500W on both HF and 50MHz) Drain Voltage Drain Current 30A max.
  • Page 6 Otherwise, over-current protection completely shuts down the drain voltage power supply for five minutes before it gets resettable. When this protection works, O.DRIVE lamp lights and HL-550FX will enter the through state, the reset of the amp being disabled for five minutes.
  • Page 7 6-A. Front Panel Description 1 1 1 1 4 4 4 4 1 1 1 1 3 3 3 3 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 1 1 1 1 2 2 2 2 T T T T O O O O K K K K Y Y Y Y O O O O H H H H Y Y Y Y - - - - P P P P O O O O W W W W E E E E R R R R S S S S O O O O L L L L I I I I D D D D S S S S T T T T A A A A T T T T E E E E L L L L I I I I N N N N E E E E A A A A R R R R A A A A M M M M P P P P L L L L I I I I F F F F I I I I E E E E R R R R F F F F A A A A N N N N...
  • Page 8 To reset protection, turn POWER off and turn on again. ⑧ ⑧ ⑧ ⑧ FUSE FUSE (LED) (LED) : LED lights when the 15A glass fuse (F202,203) has blown from FUSE FUSE (LED) (LED) excessive Id. (Two fuses are on the PC1622V PA board.) ⑨...
  • Page 9 6-B. Rear Panel Description F F F F U U U U S S S S E E E E I I I I N N N N P P P P U U U U T T T T A A A A N N N N T T T T A A A A C C C C A A A A L L L L C C C C A A A A D D D D J J J J...
  • Page 10 ① RF Power Detector and Send-Receive Switching Relay ② Inter-lock Switch ③ LPF Board ④ Main Power Source Unit (Switching Mode Power Supply) ⑤ Sub-Power Source Unit ⑥ Control Board ⑦ Power Amp Unit (PA board/heatsink) ⑧ Frequency Detector Board ⑨...
  • Page 11 7. Connection and Operation This section explains a one-antenna system connected to the transceiver and an external SWR/POWER meter. A A A A N N N N T T T T E E E E N N N N N N N N A A A A T T T T R R R R A A A A N N N N S S S S C C C C E E E E I I I I V V V V E E E E R R R R S S S S W W W W R R R R / / / / P P P P O O O O W W W W E E E E R R R R M M M M E E E E T T T T E E E E R R R R...
  • Page 12 Turn the POWER switch on. Turn the BAND switch to a desired operating frequency band. Turn the STAND-BY switch to OPER (operate) position and the amplifier is ready to go. If you key the transceiver with the carrier level set relatively low (such as 20-30W), you will achieve an amplified output signal of a few hundred watts.
  • Page 13 ALC Connection ALC voltage is available at the terminal marked ALC (RCA phono jack) on the right lower corner of the rear panel. Negative maximum DC voltage of ten volts (-10V) is produced at this terminal when the amplifier is fully driven. This voltage is adjustable with the ALC ADJ.
  • Page 14 Protection Circuits There are five major protection functions in this amplifier. If the amplifier has shut down for some reason, before re-setting, correct the possible cause of the shut down. Turn off the POWER once and back on to reset. O.
  • Page 15 *O.Current protection of Power Supply Note that you need to reset in a different way from the above 5 protections when O.Current protection works on the power supply. See NOTICE on page 5. When this protection works, the meter display of Vd will be 0V. Turn the POWER switch OFF, and wait for more than 5 minute before turning it ON again to reset.
  • Page 16 10. Explanation of Major Circuits Six major circuit blocks are explained in their basic form and using signal flows. Refer to the Block Diagram on the final page. 10-1 RF Power Detector / TX-RX Switch (PC1821) 10-2 Frequency Detector Unit 10-3 PA Unit 10-4...
  • Page 17 10-5 Control Unit (PC1818) This is the heart of the control signal processing for the HL-550FX. It judges the operating condition of the amplifier, as well as issuing the commands to the peripheral circuits. Various analog signals are processed such as RF drive from the transceiver, RF power signals at various points, DC power supply information, etc.

  • Page 18: Troubleshooting

    11. Trouble Shooting Failure Possible Cause Solution AC mains not ① AC fuses blown ① Replace with new ones. operating ② AC cord not plugged in ② Plug in securely. ③ Interlock switch lifting ④ Wrong tap used on ③ Screw bolts tightly on the top cover. power transformer primary ④...
  • Page 19 ① Overdrive ① Decrease the drive. Check ALC TVI, FMI setting. ② RF leakage from coax ② Insert common mode filters on cable, grounding wire, antenna cable or AC line. Add AC power cord etc. clamp-on ferrite cores (TDK, Amidon, Palomar) on various cables.
  • Page 20 12. Parts Layout 12-1 Top View (Detailed) 12-2 Top View & Side View 12-3 PA Unit (PC1662V) 12-4 LPF Unit (PC1817), Sub AC Unit (PC1819) 12-5 Frequency Detector Unit (PCS1733), RF Power Detector Unit (PC1821) 12-6 Control Unit (PC1818) 13. Schematic Diagrams 13-1 PC1662V PA (Power Amplifier) Unit 13-2...

  • Page 21: Top View (Detailed)

    TOP VIEW (DETAILED) MAIN SW POWER SUPPLY (ADA1000F48) MAIN SW POWER SUPPLY (ADA1000F48) MAIN SW POWER SUPPLY (ADA1000F48) MAIN SW POWER SUPPLY (ADA1000F48) SUB SW POWER SUPPLY(KWD15-1212) SUB SW POWER SUPPLY(KWD15-1212) SUB SW POWER SUPPLY(KWD15-1212) SUB SW POWER SUPPLY(KWD15-1212) LPF UNIT(PC1817) LPF UNIT(PC1817) LPF UNIT(PC1817) LPF UNIT(PC1817)
  • Page 22 TOP VIEW & SIDE VIEW <TOP VIEW> <LEFT SIDE VIEW> <RIGHT SIDE VIEW>...
  • Page 23 PA UNIT (PC1662V) F203 Fuse 15A F202 Fuse 15A J202(RF OUT) J203 J201(RF IN) VR205(BIAS REF) VR204/VR203 VR202/VR201 L L L L O O O O H H H H I I I I F201(MINI FUSE 1A) H H H H I I I I L L L L O O O O F F F F E E E E T T T T B B B B I I I I A A A A S S S S A A A A D D D D J J J J ( ( ( ( V V V V R R R R 2 2 2 2 0 0 0 0 1 1 1 1 ～...
  • Page 24 LPF UNIT(PC1817) & SUB AC UNIT(PC1819) PC1817 LPF PCB PC1817 LPF PCB PC1817 LPF PCB COPPER SIDE PC1817 LPF PCB COPPER SIDE PC1817 LPF PCB PC1817 LPF PCB PC1817 LPF PCB COPPER SIDE PC1817 LPF PCB COPPER SIDE J301 J302 J303 PC1819 SUB AC PCB PC1819 SUB AC PCB...
  • Page 25 FREQUENCY DETECTOR UNIT(PCS1733) & RF POWER DETECTOR UNIT(PC1821) PC1821 DET UNIT PC1821 DET UNIT LED PC LED PC LED PC LED PC PC1821 DET UNIT PC1821 DET UNIT PCS1733 F DET UNIT PCS1733 F DET UNIT PCS1733 F DET UNIT PCS1733 F DET UNIT PC1821 DET UNIT COPPER SIDE PC1821 DET UNIT COPPER SIDE...
  • Page 26 CONTROL UNIT (PC1818) PC1818 CONT UNIT PC1818 CONT UNIT PC1818 CONT UNIT PC1818 CONT UNIT IC103 C102 IC101 IC108 PC1818 CONT UNIT COPPER SIDE PC1818 CONT UNIT COPPER SIDE PC1818 CONT UNIT COPPER SIDE PC1818 CONT UNIT COPPER SIDE SW102 SW101...