H18.02.13. Contents Inst. Man. Contents Introduction ...verve cvreeivnnrivenusnnniireon 1 Caution Features Specifications . AC Line Voltage Front Panel Description Rear Panel Description eavesdropping 9 Connection & Operation . ALC Connection Band Data Cable Connection 9-1: ICON DC Voltage Band Data 9-2: COMICAL 9-3: Yates Band Data 9-4: Ken wood RS-232C Data . EPSOM ANP wo 10. Protection Circuits 11.
14. 15. 13-8: 14.1: 14-2: 14-3: 14-4: 14.5: 14-6; 15-1: 15-2: PC1611FN/PC1611 DC-DC Conn. 32 Parts Layout Top View ( Detailed ) Top View & Side View (Left) .. Joe Side View (Right ) & PC1664, PC1665 .. ..35 PA, LPF (Top & Bottom ) Power Detector, P re-scaler, DC-DC Converter Main Control ( Front View } ..
1. Introduction is a most compact and light weight desk-top HF/SOMHz band linear power amplifier with the maximum input power of 1.75kW. It boasts of being smallest and lightest in the industry using our solid state broad band power amp technology. Typical output power is 300W PEPPINESS ( 1kW max. ) on HF and 500W on 6m band with the drive power of 85.90W.
processor. Please note, however, that such operations as to hit same protection circuits repeatedly will lead to the failure of the valuable final power transistors. 2-8 When checking the inside of the amplifier, be sure to wait for a few minutes until the high DC voltage is discharged ( monitor Vd meter reading ). Also do not try to turn the potentiate-meters for RF power detector, protection circuits, FET bias voltage circuit and so on, as they are precisely aligned at the factory.
3. Features 3-1 is the most compact 1kW HF amplifier that is easy to handle and to operate due to the solid state broad band design, This amplifier is lightest and most compact in the industry. Qur solid state design engineering successfully developed the world class compact 1kW HF/6m amplifier.
for the control cable to connect to model auto antenna tuner by Tokyo H-Power Labs, to be announced in 2006, 4. Specifications Frequency Mode RF Drive Output Power Matching Transceivers for Auto Band Decoder Drain Voltage Drain Current Input Impedance Output Impedance Final Transistor Circuit Cooling Method MPU Multi-Meter Input/Output Connectors : AC Power AC Consumption Dimension Weight Accessories 1.8 ~ MHz all amateur bands including WAR bands and SO MHz ( US model to cover 1.
Spare Use 1A (Miniature Fuse) x3 { For PC1664 , main control board x 1, For PC1662 , power amp board x 1) Spare Fuse 2A { Miniature Fuse ) x 1 {For PC1611 EN DC-DC board x 1) User Manual x 1 Optional Items © Auto Antenna Tuner { External Cooling Fan ( for high duty cycle RATTY )
5. AC Line Voltage 5-1 Although the amplifier is designed to work with both AC 115V ( 100-120V") and AC 230V { 200240V ), we recommend the user to operate with AC 230V line for the stability reason. 5-2 Since AC plug style differs from country to country. The plug is not included in the package. Please source locally the suitable one for your application.
6-A. Front Panel Description @ @ POWER @ PORE. ® METER Main power switch to turn on and off AC power. LED (green) lights when turned on. OPERATE /STAND-BY switch, At OPERATE , the amplifier is ready to go into ON AIR (TX) state and at STY, It is on STAND-BY state. To change the multi-meter scales, Meter reads Pf, Pr, Vd, and Id. @ BAND SELECT ® UP, DOWN ® ANT To select the band changing methods of AUTO and MANUAL. When AUTO, the manufacturer of the transceiver in use should be selected.
@31 : cooling effect. It is recommended that the power switch is not turned off immediately after finishing the operation if FAN is lit. Leave the cooling fan running for the time being. Excessive Id Indicator ( > 35A). Depending on the band and antenna used, a high drain current may flow into Fetch. If 35A is exceeded, LED flickers and or lights fo indicate the high ID is being drawn. ( This lighting does not necessarily mean the failure of the amplifier.
6-B. Rear Panel Description Beebe ANTS RF Output Connector. Connect the coax cable to the antenna. @ ANT B RF Output Connector. Connect the coax Cable to another antenna or the dummy load (5062 1kW for example ). @ INPUT RF Input Connector. Connect the coax jumper cable from the transceiver. @ AC POWER AC Mains Socket, Plug the AC power cord. { Socket is EMI filtered.) ® GND Ground Terminal. ® SEND RCA Jack.
transceiver, ( See page 14, BAND DATA CABLE CONNECTION WITH ICON) O clvi See Eye Five. Bar phone jack for CI-V band data cable from the ICON transceiver, { See page 15.) © BAND DECODE Slide switch to select band data communication methods with ICON transceiver. To select either “DC voltage band data” or “CI-V band data”, @® TUNER DIN Socket for External Auto Antenna Tuner. { Our is expected to avail in 2006, } ® YATES DIN Socket for band data cable from the Yates transceiver. ( See page 16.
200/220/230/240V. Set at 115V for 100/110/115/120V lines, @ FUSE Holder of Fuse for the External Cooling Fan Unit, Use 2A glass fuse, when the optional fan is installed on top of the cover, 7. Connection & Operation This section explains about one antenna system and two antenna systems with basic connections with the transceiver, where no band data cable is connected. In this case, band setting is made with MANUAL mode, pushing UPTOWN keys.
or the remote terminals of transceiver, where it is marked “SEND” or “TX GRIND. These terminal pins are ones that is shorted to the ground when the transceiver is at TX/ON AIR state. If this wiring is not made, the amplifier will not go into TX ( amplification ) state. For the temporary check of the amplifier, ground the SEND center pin by inserting an RCA plug whose center pin is soldered to the outer case of the plug with a small piece of wire.
7-7 Protection circuits may work during operation depending on the conditions, If the protection circuit has shut down the amplifier, check the antenna SWR, Vd , AC line voltage, or try to reduce the drive level, To reset, turn off the POWER switch once and turn on again. Also the power transformer has the over heat protection in the coil layer. If this temperature switch once works, the amplifier is set to the receive mode for a while with cooling fan kept running until the transformer cools off.
9. Band Data Cable Connection Connection methods with ICON, Yates and Ken wood transceivers are described in detail here respectively. This connection enables the automatic band setting of the amplifier with the band set command from the transceiver. Four types of cable connections are explained, 9.1 ICON DC Voltage Band Data Tum off the AC mains of transceiver and amplifier for safety.
9-2 ICON CI-V ( See Eye-Five ) Following initial setting is needed to the ICON transceiver ; CI-BAUD RATE : 4800 CI-V ADDRESS i Sch CI-TRANSCEIVER : ON CI-V with IX-731 : OFF { For the details, refer to the ICON radio manuals. } Turn off the AC mains of the transceiver and amplifier. Connect the following CI-V band data cable as shown in the illustration. Slide the BAND DECODE switch knob to the CI-V side.
9.3 Yates Band Data Using the Yates band data connection cable ( shown below ), connect the transceiver ( example, FT-1000MP MK-V } to the Tum off the AC POWER switches of the transceiver and the amplifier. Connect the plug of DIN 8 pin connector to the BAND DATA ( 8 pin ) socket of Yates transceiver. Connect the other plug of DIN ( 5 pin ) connector to the’ @ “YATES of DIN (5 pin) socket on the rear panel of the amplifier.
9-4 Ken wood RS-232C Band Data Using the Ken wood band data connection cable ( shown below ), connect the transceiver { example T-950, T-870 ) to the as illustrated below. Initial setting to the transceiver is as follows ; Communication Speed : 4800 (bps) Stop Bit © bit ( For the details, refer to the Ken wood radio manual. ) Turn off the AC POWER switches of the transceiver and the amplifier. Connect the D-SUB (9 pin) plug to the COM ( D-SUB 9 pin socket } on the rear panel of the Ken wood transceiver.
10. Protection Circuits There are five major protection functions in this amplifier. When the set was shut down for some reason, correct the possible cause of the shut down. Turn off the POWER once and then turn on to reset. 10-1 O.DRIVE ( Over Drive/ Band Mich-set ) When the drive power exceeds 100W level, the amplifier is shut down to become STAND-BY mode ( or receive ) in order to protect the input side of power PET's. Also if the band setting is wrong, protection may work.
11. Explanation of Major Circuits Five major circuit blocks are explained on its basics and signal flows. 11-1 Main DC Power Supply 11-2 Power Amp, L.P.F. 11-3 RF Power Detector, TX/RX Switching 11-4 Main Controller 11-5 Band Decoder, Frequency Counting 11-1 Main DC Power Supply The main DC power supply feeds the 50V DC power to the final PA stage.
11-2 Power Amp ( PAPC1662 ) / L.P.F. (PC1681) RF PA is the heart of this amplifier and is composed of four pieces of SD2933 FET made by ST Micro, a French-Italian joint venture firm, The amplifier type is a parallel push-pull of class AB . Gate bias supply circuit is regulated for the best stability and is thermally compensated as well. The PA has a 6dB attenuation at the input side for the gain reduction and enhanced stability of wide band power PA characteristics.
11-3 RF Power Detector/ TX-RX Switch ( PC1667 ) As illustrated below, there are two RF power detectors on this board. The one detects the drive signal level from the radio and the other monitors the out going power as well as reflected power from the load { antenna ). These detected signals are sent to the MPU of PC1665, Main Control board, that monitors the operating condition of the whole amplifier.
11-4 Main Control ( PC1665) This is the heart of the control signal processing of It judges the operating condition of the amplifier and issues the commands to the peripheral circuits as well. Various analog signals are put into MPU such as RF drive from the transceiver, RF power signals at various points, DC power supply information and so on. These are converted to the digital signals through A/D converter .
11-5 Band Decoder/ Frequency Counter The band decoder decodes the various operating band data issued by the major brands of the radios { ICON, Yates, Ken wood ). With the decoded signal, the amplifier will automatically follow the frequency band of the radio. With these three manufacturers, there are four kinds of band data used in their latest radio models, i.e. DC voltage, 4 bit TTL, RS-232C, and serial data, is designed to meet any of these methods, if matched cable is connected respectively.
12, Trouble Shooting Failure Possible Cause Solution AC mains not | AC fuses blown D Replace with new ones. Come on @ AC cord not plugged in | @ Login securely. ® Inter-lock switch lifting | @ Screw bolts tightly for top cover, @ Wrong tapping on power | @ Correct primary wiring. transformer primary Orienteering | © Remote control cable | © Check the cable and connect correctly. ‘Transmit state not connected @ Check drive power, antenna SWR, antenna @ Protection circuits on. selection A/B etc.
13. Schematic Diagrams 13-1 PC1662 PA (Power Amplifier ) 13.2 PC1664 Band Decoder 13-3 PC1681 L.PF ( Low Pass Filter) 13-4 PC1665 Main Control 13-5 PC1667 RF Power Detector 13-6 PC1669 Front Panel Board 13-7 PCI1675 Pre Scale 13-8 PCI1611FN/PC1611DC DC-DC Converter for Fan 14. Parts Layout 14-1 Top View ( Detailed ) 14.
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