Kenwood TS-820 manual

OPERATING MANUAL[...]

CONTENTS TS-820 SPECIFICATIONS ........... ........... SECTION 1 FEATURES SECTION 2 INSTALLATION .... 2.1 Unpacking 2.2 Operation Location 2.3 Power Connections 2.4 Antenna 2.5 Microphone 2.6 Key Transmitter Tuning SSB Operation CW Operation Operation with a Linear Amplifier Fixed Frequency Operation Internal Cross Channel Operation Mobile Operatio[...]

TS-820 SPECIFICATION t.... ............. ..................... . ............. ................................................. < ............................................. ......%..............S ....... FREQUENCY RANGE .................. .. 160 meter band - 1.80 to 2.00 MHz 80 meter band - 3.50 to 4.00 MHz 40 meter band - 7.00 to 7.30 MHz 2[...]

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SECTION 2. INSTALLATION 2.1 UNPACKING ve. and between 15 and 200 ohms wfll take ~ower from the Remove the TS-820 from its shipping box and packing material and examine it for visible damage. If the equipment has been damaged in shipment. save the boxes and packing material and notify the transportation company immedia- tely. It is a good idea to sa[...]

For antenna adjustments. the transceiver may be loaded lightly, using the TUN position instead of operating at full power output. This will limit tube dissipation during adjust- ments. and will also help to reduce interference on the fre- quency. In any case, do not leave the transmitter on for very : long at one time. Turn it on just long enough t[...]

VFO-820 ANT @ ~~~SEo LOOP MICROPHONE HEADPHONE EXTERNAL - - SPEAKER Fig. l(bl Power Plug Wiring Fig. 1 (a) Connection 1 Fig. 2. Microphone Connection Wiring 7 IMPORTANT-When wlrlng a new power plug. conllrm lhat the pn numberng an ,he new plug s 8dentcal to rhe pn numberng on he POWER conneotor. The !ransoelver oan be damaged by moorreot p~n wirin[...]

I (a) Unsunlable for PTT aperailan. I Mcroplions switch (b) Unsuitable for PTT operation Swllch (c) Suitable lor PTT operation. k- Fig. 3 A Suitable PTT Microphone Fig. 4 Back Panel Jurnpered EXT VFO Connection[...]

SECTION 3. OPERATING CONTROLS Front View Panel[...]

3.1 FRONT PANEL CONTROLS @ METER The meter monitors six different functions. depending on the position of the METER switch. In receive the meter is automatically an S-meter. The S-meter shows received si- gnal strength on a scale of 0 to 40 db over S9. In transmit the meter function depends on the position of the METER switch. as described below. @[...]

VOX SWITCH This two-position lever switch seiects one of the following functions. MAN: With the switch in this position. the transceiver is switched into transmit or receive by the stand-by switch or the PTT switch on the microphone. VOX: With the switch in this position. the VOX circuit is turned on for voice operated transmit on SSB se- mi-automa[...]

[he RIT circuit is ON. By turning the RIT knob, the receive frequency of VFO can be changed by -1-3 kHz and the fre- quency of fixed channel by -1- 150 Hz without changing the transmit frequency. @ BAND SWITCH This 1 1-position switch selects all the necessary circuits to tune the transceiver to the desired 500 kHz band. @ FUNCTION SWITCH This 7-po[...]

the transceiver. Fixed frequency operation is convenient for operation on often used frequencies. The fixed channel os- cillator replaces the VFO when the FUNCTION switch is pla- ced in the FIX position. @ DRIVE KNOB The DRIVE tuning control tunes the plate tank circuit of the 12BY7A driver as well as receiver's antenna and mixer coils. In rec[...]

3.2 REAR PAN EL CONTROLS a RFVOLl Use the RF VOLT control to adjust the sensitivity of the RF output function of the meter Adjust it for a 2/3 scale rea- ding during CW transmission. @ COOLING FAN This fan cools the RF amplifier section of the TS~820 to In- sure reliable and efficient operation. ANTENNA CONNECTOR This 50-239 coax connector should b[...]

EXTERNAL VFO CONNECTOR This 9-pin connector provides a means of interconnecting the KENWOOD VFO-820. another external VFO, or an ex- ternal receiver. The interconnecting cable is provided with the VFO-820. The 9-pin jurnpered VPO plug provided with the TS-820 must be inserted in this socket for normal trans- ceiver operation. PIN FUNCTION VFO rlgna[...]

SECTION 4. OPERATING INSTRUCTIONS . . 4.1 PRELIMINARY PROCEDURE Set the MIC and CAR controls to zero and the MODE switch to LSB. USE. or CW to prevent acc~dental transmlt con- d~tions before tunlng The TS-820 must be operated Into a 50 - 75 ohm antenna or dummy load w~th an SWR less than 2 1. Random length wlre antennas or light~bulb dum~ my loads [...]

scale and the digital dial (option), the correct frequency is on the digital dial. In this case. the analog dial should be cali~ brated with the calibrate knob. NOTE: When the digital display is used, the dig~ts for 10 MHz order change according to the BAND switch and are independent of the counter unit. In the 29.5 MHz band. for example. the indic[...]

4.6 RF ATT 4.10 AGC (AUTOMATIC GAIN CONTROL) If the transceiver is operated in a short-distance (within several ihundred meters) and strong signals of nearby fre- quencies are received. the wanted signals are blocked. Also. if the wanted signals are very strong. the S meter is scaled out. In this instance, set the ATT switch to ON. The input signal[...]

TABLE 3. Summery of Transmitter Tuning Procedures Table 2. Initial Switch Settings for Transmission (The controls not described should be set as described in Table 1) MODE Swtch Procedure Adlust BIAS control for 60 ma TUN ALC SEND Peak the ALC readlog wlrh the DRIVE control TUN 1 IP 1 SNED D8p plate current ~8th PLATE conrrol FRONT PANEL CONTROLS R[...]

PLATE AND LOAD TUNING CAUTION: When the MODE switch is in the CW positlon tile final tubes draw full plate current in transm#t. Final tube life is directly related to the length of tune-up periods. Do not transmit with the tubes out of resonance for more than 10 seconds at a tlme. Turn the MODE switch to CW, turn the METER switch to RF. and set the[...]

When interference is encountered. turn the iF SHlFT knob and the interference can be eliminated. For more effective CW operation. use the CW filter YG-88C (option) by refer- ring to page 34. OPERATION WlTH CW FILTER (OPTION) Set the transceiver in the receive mode by setting the IF SHlFT knob to the center posltion and the RIT switch to the OFF pos[...]

The crystal frequency is determined by the following formu- 4.17 MOBILE OPERATION las. The compact size and solid-state design of the TS-820 make it deal for mobile use, by using optional DS-1. Cgystal Frequency (MHz) = 5.5 MHz + X - Operating Fre- Be sure to use a mobile antenna which meets the require- quency [MHz) ments described in Section 2. X[...]

4.20 SSTV (SLOW SCAN TV) OPERATION SSTV operation can be accomplished by simply connecting the output of SSTV camera to the PHONE PATCH IN jack [or MIC connector1 and the input of SSTV monitor to the PHONE PATCH OUT jack (or SPEAKER jack). Wllen transmitting signals from the SSTV camera. adjust its output so that the input power of the final stage [...]

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5.2 BOARD AND UNIT IF BOARD (X48-1150-00) The IF Board is very ilnportant for operation of transmitter and receiver. It is composed of the microphone amplifier, ring modulator, crystal filter. transmit-receive IF amplifier i and the ring detector. in addition to the noise blanker circu~t. AGC ampl~fier. S meter amplif~er, speech processor and mo- F[...]

nitor circuit. COIL PACK BOARD 1x44-1140-00) Crystal filters are self contained for SSB operatlon. CW fil- Tuning coils for the individual bands and stages. band select ters (YG-88Cl are available as optional accessories. for easy rotary switch and variable capacitor are all arranged ratio- installation. nally in one unit. These parts function toge[...]

PLL Unit 1x60-1010-00) This unit is composed of the PD Board and the VCO Board VFO can be obtained for each band. The PD Board holds to function as a local oscillator lor the transm!tter and the re- crystal oscillators lor each band. 2 mixer circuits. waveform ce~ver. Stabilized osc~llator output like that of the built-in shap~ng c~rcuit and phase [...]

standard oscillator to produce a voltage to control VCO (vol- COUNTER ASS'Y UNIT (OPTION) IX60-1020-00) tage controlled oscillator). It also forms a full electronic IF sh~ft loop using an external carrier signal. The VCO unit is . composed of FET type osc~llators for each band. buffer am- pl~f~er circuit. and the oscillator shut off circuit at[...]

DISPLAY UNIT (OPTION) (X54-1170-00) CAR ASSY UNIT (~60-.1000-001 This unit uses a 6 digit fluorescent indicator to indicate ope- Tl~is is a crystal oscillator that functions as a carrier for the rating frequencies counted by the counter unit. All the digits generator during transmission and as a BFO for ring detec- glow greep to provide many hours [...]

AF-AVR BOARD 1x49-1080-00) FIX-vox BOARD 1x50-i350-001 This Board represents the final stage of the receiver circuit. Thls Board incorporates the fixed channel oscillator. the VOX holdlng an AF amplifier and a 9V power stabilizer. The fre- (voice control) circuit controls voice operated transmission. quency characteristic of the AF amplifier can be[...]

VOX-VR BOARD 1x54-1190-001 Three variable resistors. VOX GAIN. ANTI VOX and DELAY. are directly mounted on a printed circult board. 5V AVR BOARD (OPTION1 1x43-1220-001 Thts is a 5V power stab~l~zer used for the counter unlt It uses IC to provlde rated voltage wlthout maklng any adjust- ments MARKER 80ARD 1x52-0005-011 The MARKER board holds the 100[...]

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6.2 ACCESSORIES CAUTION: BE SURE THE TRANSCEIVER IS UNPLUGGED AND TURNED OFF BEFORE REMOVING THE CASE. INSTALLING THE CW FILTER IYG-88C) (See F~gure 251 Install the filter unit according to the following procedures: 1. Remove the top cover of the transceiver using a screw- driver. Care should be used not to break the leads con- nected between the 2[...]

MOUNTING THE DIGITAL DISPLAY [DG-1) [See FI~ 27) DG1 is provided w~th the following 3 units: Display Unit 5V AVR Unit Counter Ass'y Unil 1. Mount the above 3 units in place in the set using screws (Fig. 27[a)) 2. Insert the connector and the wiring is completed. 3. Calibrate the standard frequency of the counter ass'y unit by WWV (refer t[...]

TRANSVERTER (TV-5021 To connect the transverter to TS-820. proceed as follows: 1. Check that the power to the transverter and TS-820 is OFF. 2. Connect the cable supplied with the transverter to the X . - VERTER connector of TS-820 and the CONTROL con- nector of the transverter (2m CONTROL connector for TV-502). 3. Connect the supplied pin-cords to[...]

1 Transceiver Interconnecting Cord Fig. 29 Connection of Accessory Remote VFO REMOTE CONNECTIONS EXTENSION FEET Fig. 30 shows the REMOTE connector. This 8-pin plug The TS-820 is provided with two extra feet which can be can be used for attaching linear amplifiers. or other external used to raise the front panel of the transceiver. In some accessori[...]

6.3 ADJUSTMENT OF RECEIVER SECTION ADJUSTMENT OF 9V AVR VOLTAGE (AF-AVR UNITI Adjust VR4 for 9V between the terminal "9" and chassis. ADJUSTMENT OF AGC BIAS (AF-AVR UNIT) - Adlust VR1 for 3 3V between the term~nal "RF1' and the chass~s RIT ADJUSTMENT (AF-AVR UNITI Set the RIT knob to its center position and turn on the RIT switc[...]

6.4 ADJUSTMENT OF TRANSMITTER SECTION ADJUSTMENTOFTRANSMIT DRIVE COIL (COIL PACK UNIT) The drive coil is built in the coil pack unit. Set the SG switch on the rear panel to OFF and the DRIVE knob to its center position. Then. set the METER switch to ALC and the MODE switch to CW or TUN position. With the standby switch in the SEND position, adjust [...]

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No drive or intermittent drive on one or 1. PLL unic requires adjustment. 1. See Section 6.4. more bandr. 7.4 TRANSMITTER SECTION - +. , , li I Signal reports of dirtortian. 1 1. Too much microphone gain. ( 1. Reduce MIC control. I Low drive and broad DRIVE tuning on all bandr. SYMPTOMS RF me~er deflects with no outpur In0 piale current.] ALC meter[...]

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IO- A product of -KENWOOD CORPORATION 6-17 3-chome. Aobadai. Meguro-ku. Tokyo 153. Japan @ 6433 PRINTED IN JAPAN 850.1568-00[...]