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Kenwood TS-820 Operating Manual
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Kenwood TS-820 Operating Manual

Kenwood TS-820 Operating Manual

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OPERATING MANUAL

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Summary of Contents for Kenwood TS-820

  • Page 1 OPERATING MANUAL...

  • Page 2: Table Of Contents

    ......TROUBLESHOOTING SECTION 7 IF Shift ..... TOP and BOTTOM VIEW OF THE TS-820 Noise Blanker ......... SCHEMATIC D I A G R A M 4.10 AGC (Automatic Gain Control)
  • Page 3 TS-820 SPECIFICATION ......................t ......< ..% ....S ....FREQUENCY RANGE 160 meter band - 1.80 to...
  • Page 4 The adop- Digital Display Dial tion of a circuit that is completely free from changes in The digital dial of TS-820 indicates transmit and receive carrier frequencies permits accurate indication of fre- frequencies using carrier. VFO and local oscillator quencies on one dial pointer.

  • Page 5: Unpacking

    SWR be- TS-820 is switched to the correct line voltage ( 1 2 0 or 220). comes However. in mobile installations the transmission...

  • Page 6: Microphone

    H E A D P H O N E S wer. Receive audio output from the TS-820 is 1.5 w a t t a t 4 to 16 2.5 M I C R O P H O N E ohms The TS-820 has a built-in speaker.
  • Page 7 VFO-820 LOOP MICROPHONE HEADPHONE EXTERNAL SPEAKER Fig. 1 (a) Connection IMPORTANT-When wlrlng new power plug. conllrm lhat new plug p n numberng an s 8dentcal \he POWER t o rhe p n numberng conneotor. The !ransoelver oan be damaged by moorreot p ~ n wiring.
  • Page 8 (a) Unsunlable for P T T aperailan. Mcroplions s w i t c h (b) Unsuitable for P T T operation Swllch ( c ) Suitable lor P T T operation. Fig. 3 Suitable PTT Microphone Fig. 4 Back Panel Jurnpered EXT VFO Connection...

  • Page 9: Section 3 Operating Controls

    SECTION 3. OPERATING CONTROLS Front View Panel...

  • Page 10: Front Panel Controls

    VFO I N D I C A T O R The VFO indicator is a light emitting diode which illuminates METER whenever the TS-820's internal VFO is controlling the trans- The meter monitors six different functions. depending on ceiver's operation. The indicator is not lighted during fixed the position of the METER switch.
  • Page 11 TUN: Used for adjustment of transmit conditions. The VOX S W I T C H input power to the final stage is low as compared This two-position lever switch seiects one of the following with that for CW so that the final stage tube,s can functions.
  • Page 12 ALC zone. VFOR: W i t h the switch in this position, the TS-820's in- A F G A l N K N O B ternal VFO controls the receive function and the internal fixed channel oscillator controls the trans- This knob adjusts the gain of the receiving audio amplifier.
  • Page 13 the transceiver. Fixed frequency operation is convenient for L O A D K N O B operation on often used frequencies. The fixed channel os- The LOAD control adjusts the loading of the pi-circuit bet- cillator replaces the VFO when the FUNCTION switch is pla- ween the final section and the antenna.

  • Page 14: Rear Panel Controls

    The SG slide switch controls the screen grid voltage on the Ground final tubes. For tuning or neutralizing the TS-820 you can Tranrverter set the switch to the OFF position. Turn the switch back t o the ON position for normal operation. The SG voltage 1 s on X VERTER S W I T C H when the switch is up and off when the switch is down.
  • Page 15 The interconnecting cable is provided with No connec~ion feedback the VFO-820. The 9-pin jurnpered VPO plug provided with Normally closed lermlrlal Occupred the TS-820 must be inserted in this socket for normal trans- relay contact ceiver operation. External Ground speaker FUNCTION...

  • Page 16: Operating Instructions

    LSB. USE. or CW to prevent acc~dental transmlt con- tlon with the H SW switch turned to OFF. Advance the AF d~tions before tunlng The TS-820 must be operated Into a GAlN control clockwise until some recelver noise is heard...

  • Page 17: Calibrating The Frequencies

    RIT switch to OFF Turning the RF ATT switch t o ON redw By calibrating the TS-820 for normal operation. as describe; previously, the TS-820 can be used as a frequency standarci ces the incoming signal and the marker signal can be recei- for calibrating the remote VFO.

  • Page 18: Rf Att

    RF amplifier are attenuated by about 2 0 dB. 4.1 1 TRANSMITTER T U N I N G providing distortionless reception. Connect the TS-820 to a 5 0 ohm dummy load or a 5 0 ohm 4.7 RIT antclxla with an SWR of less than 2 :...
  • Page 19 Table 2. Initial S w i t c h Settings for Transmission (The controls not described should be set as described i n Table 1 ) FRONT PANEL CONTROLS BAND Switch Desired band H. SW Switch MODE Switch USB or LSB depending on selected band VOX Switch M O N l Switch counter-clockwise...

  • Page 20: Ssb Operation

    4 . 1 2 SSB O P E R A T I O N CW transmlsslons are automatically monitored through the Tune the TS-820 as described i n Sections 1 to 4 . 1 1 Set speaker o f the...

  • Page 21: Operation W I T H A Linear Amplifier

    For more effective CW operation. use the CW filter YG-88C (option) by refer- Tune and load the TS-820 as described in Sections 4.1 ring to page 34. through 4.1 1 and adjust it for the selected mode.

  • Page 22: Internal Cross Channel Operation

    4.17 MOBILE OPERATION The crystal frequency is determined by the following formu- las. The compact size and solid-state design of the TS-820 make it d e a l for mobile use, by using optional DS-1. Cgystal Frequency (MHz) 5.5 MHz...

  • Page 23: Sstv (Slow Scan Tv) Operation

    For the novice to operate the Kenwood within the legal po- l 0 O W (less than 1 2 5 mA lpl.

  • Page 24: Ts-820 Block Diagram

    ,,,, $,,% ,,..,,,,,., .,,,,, .......... 1,,,, .,,a 5 . - ,888 to,, ..<,,,,,.,,,,,,.,,,,,..#,,,,~.~,,,,~.,,m~.,,,,,..<,,,,~.~,~~~~.~~,~~~.a~~~,t.~,,,,~..,,,,~.~~,,~.a~,,~~.~~~~~~.~~,,,~.~,,,,>.#~~~~~.#~~~~~.c~~~~~.~4~t~~..,,~!~.#,,,,>.#,,,,~.s,,,,~.#,,,~~ ,,,.<,,,,8.#,,,,..,,,,M.<,,,,~., TS-820 BLOCK DIAGRAM ....,,,,,., #,#,,..,#,,,., ,,,,,.,,,,,,. ,,,,,.,,,,, ,,,, ..,,,,,,., ,.,,,,, ,.,,,,,,.,,,,,,., #,,,,,.,,,,,~.,,,,,~.#,,,,,.,,,,,,.#,,,,~.,,,,,.~,,~,~.~~,~,~.~,,,,,.,,,,,,.<,,,,,.#,,,,~.~,,,,..~~,~w#,,,,~.,<,,,>.<,,,,~.~,,,,...,,,,~.~,,,,~.~,,,,~.,,,!".,,,,,,: : < < < , . a , , , , , . < , , , , , . , , , , , . . ,...

  • Page 25: Block Diagram

    ,," "",." ,<,\., .<,,,,,.,,,,,,.,,,,,?. "",." ".<"",."" """,,"",.~"",.,"",.""".,"",.""w.<"",.""" . , . , " s < , . < , . , s , < , s . .%",ruw.ulurruu.." ,>u.w ,$.,,<$w, " " , . " " U . < " " * <...

  • Page 26: Board And Unit

    5.2 BOARD A N D UNIT and receiver. I t is composed of the microphone amplifier, ring modulator, crystal filter. transmit-receive IF amplifier I F B O A R D (X48-1150-00) and the ring detector. i n addition t o the noise blanker circu~t. ampl~fier.
  • Page 27 The PLL circuit is controlled by VFO signals, thus the fre- transmission and reception. quency stabil~ty of TS-820 is virtually determined by the sta- I t also includes a coil pack unit for the tuning circuit. btlity of VFO. The unit is composed of 2 FETs. 2 transistors diodes.
  • Page 28 PLL U n i t 1x60-1010-00) VFO can be obtained for each band. The PD Board holds This unit is composed of the PD Board and the VCO Board crystal oscillators lor each band. mixer circuits. waveform to function as a local oscillator lor the transm!tter and the re- shap~ng c~rcuit and phase comparator.
  • Page 29 C O U N T E R A S S ' Y standard oscillator t o produce a voltage to control VCO (vol- U N I T (OPTION) I X 6 0 - 1 0 2 0 - 0 0 ) tage controlled oscillator).
  • Page 30 DISPLAY U N I T (OPTION) (X54-1170-00) CAR ASSY U N I T (~60-.1000-001 T l ~ i s is a crystal oscillator that functions as a carrier for the This unit uses a digit fluorescent indicator to indicate ope- generator during transmission and as a for ring detec- rating frequencies counted by the counter unit.
  • Page 31 AF-AVR B O A R D 1x49-1080-00) FIX-vox B O A R D 1 x 5 0 - i 3 5 0 - 0 0 1 This Board represents the final stage of the receiver circuit. Thls Board incorporates the fixed channel oscillator. the VOX holdlng an A F amplifier and a 9V power stabilizer.

  • Page 32: Final Stage Power Amplifier

    The MARKER board holds the 1 0 0 kHz crystal oscillator 101) and a 2 5 kHz multivibrator 102 and 0 3 ) to produce marker signals at 2 5 kHz intervals to calibrate the TS-820. 0 4 amplif~es the calibrator signal^...

  • Page 33: Maintenance A N D Alignment

    SERVICE POSITION (See Fzg. 2 4 ) The TS-820 has been factory sligned and tested to The TS-820 should be placed on its side, with the final sec- tion up, for any alignment or service. This position permits specifications before delivery to the customer. Under nor-...

  • Page 34: Accessories

    Only SSB filter used ......... A SSB and CW filters used: FSK shift 1 7 0 Hz (CW filter used) ......... FSK shift 850 Hz ISSB filter used) of Ts-820 Rear panel panel Roar ? > ( I ( ? , 1 1 4 , , , <...
  • Page 35 M O U N T I N G T H E D I G I T A L DISPLAY [DG-1) [See F I ~ 2 7 ) D G 1 is provided w ~ t h the following 3 units: Display Unit 5V AVR Unit Counter Ass'y Unil...
  • Page 36 Connect the supplied pin-cords to the X VERTER OUT that of VFO-820. proceed as follows: jack of TS-820 and the TX IN jack of the transverter ( 2 m Set TS-820 in the receive mode and then set the TX I N jack for TV-502).
  • Page 37 EXTENSION FEET Fig. 3 0 shows the REMOTE connector. This 8-pin plug The TS-820 is provided with t w o extra feet which can be can be used for attaching linear amplifiers. or other external used to raise the front panel of the transceiver. I n some accessories to the transceiver.

  • Page 38: Adjustment Of Receiver Section

    However, i f it is deviated after a long period of use of the set. it must be calibrated accurately. TS-820 is designed to re- A D J U S T M E N T O F RECEIVE I F COIL ceive WWV signals so that the marker frequency can be cali- brated prectsely.

  • Page 39: Adjustment Of Transmitter Section

    6.4 ADJUSTMENT OF TRANSMITTER A D J U S T M E N T OF SIDE T O N E LEVEL (AF-AVR UNIT) SECTION Adjust VR3 to your desired level. A D J U S T M E N T O F T R A N S M I T DRIVE COIL ( C O I L P A C K U N I T ) A D J U S T M E N T OF M O N I T O R LEVEL (IF UNIT) The drive coil is built in the coil pack unit.
  • Page 40 )),,..,,,,,...,,,,,.<,,,,,.,,,,~,.,~,,,, .,,,,,,..,,, <,<,, ......#,# ..,,,,,... *,,,........,,,. ",,,.., ,,,, ,,,, .,,,,,,..,,,,.. ,,,, .,,,,, ,.,,,,,,.#,,,,,.#,,,,..,,,,,,.,,,,%,.,,,,,, < , , ~ . . , , , , ~ . c ~ , ~ s t . ~ ~ a ~ a ~ . ~ a ~ a a ~ i , , , , , , .
  • Page 41 ALC meter doer n o t deflect and there i r 1. Too little MIC gain. Increase the MIC G A I N control. output. The TS-820 will not ooerate SSB, 1. Open microohone plug bad micro. 1. Check the microphone.

  • Page 42: Top And Bottom View Of The Ts-820

    ,,,, -,,,, ,,,, ,,,, ,,,, ,.,,,<,,., ,.,,,,,,.,,,,,,.# ,,,, a,,, I,,, ..,,~,,,.,,,,,~.,,<,,,.,,,,,~.,,,,~~.~~~~~~.#~6~~..#~~~~~.~t~~~~.~~~~~~.~~E9~~.%rs~~~.%~~~~t.~~~,~~.~~,,~~.~~~~t~.~~~r~~.#,~t~..~,~,,~.#,,,,..~,,,,~.~,,,,~..,,,,..c,,,,,.,,,,,,..,,,,,.,,,,,,.,,,,,,.#,,,,,.# . . # ,.,,,,,~..,,a>~.cm,m38.~a>m88.~m3m#* TOP & BOTTOM VIEW OF THE TS-820 ,,,,... ,,,, ,,..,,,,, ..,,,, .",,,, .,,,,, .,,,, ,,,,,..,,,, ..........,,a, , . # ,~.,,,,#~..,,,,~..#,,,~.<,#,#~..,#,#~..,,#,~..,,,,8.#,,,,8.#,,,,>.,,,,,..,,,,,,.,,,,,8.,,,,,,.,,,%,~.,,,,,,.,,,,,,.,,,,,,.,,,,,,.#,,,,.,,,,,,.,,,,,,., . < , , , , . . < , , , m >...
  • Page 44 A product o f -KENWOOD CORPORATION 153. Japan 6-17 3-chome. Aobadai. Meguro-ku. Tokyo @ 6433 PRINTED JAPAN 850.1568-00...

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