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Kenwood AUDIO PROCESSOR manual

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Table of contents for the manual

  • Page 1

    OPERA TING MANUAL EQ plus AUDIO PROCESSOR[...]

  • Page 2

    September 2004 Julius D. Jones 19 V anessa Lane S t aat sburg, N.Y . (12580) (845) 889-4253 E-mail: Julius@W2IHY .COM Home Page: http:// www .w2ihy .com c 2004 W2IHY, A LL RIGHTS RESER VED -2- TECHNOLOGIES W2IHY EQ plus AUDIO PROCESSOR OPERA TING MANUAL[...]

  • Page 3

    T ABLE OF CONTENTS Introduction ......................... 4 Front Panel Controls .......... 5 - 9 Rear Panel Controls ............10 - 1 1 Schematic (Front Panel) .......12 - 13 Schematic (Rear Panel) .......14 Rear Panel Controls ...........15 Getting S t arted T utorial .......16-19 Internal Wiring .................... 20 Audio Out Cable wiring .[...]

  • Page 4

    -4- The EQplus is the next generation of audio processing equipment from W2IHY Te chnologies. The EQplus was designed to be directly attached to the world famous W2IHY 8 Band EQ. The EQplus provide s features such as A udio Compression, Downward Exp ansion, Eff ects and connectivity to 3 radios. A ll these features, and more, were designed in a way[...]

  • Page 5

    -5- FRONT P ANEL CONTROLS 1 2 6 This section describes each of the controls on the front panel. Yo u should read through this section now. Some of the descriptions will be more meaningful after you first work through the Getting St arted T utorial. (1) Power On/Off Switch (S1) T his switch turns the unit's power on and off. (2) Power on LED (L[...]

  • Page 6

    FRONT PA NEL CONTROLS -6- (4) A udio Input Impedance Switch (S5) This 3 position toggle switch is used to change the input impedance of the Mic and A ux Inputs (19,20 & 21). Input Impedances of 200 ohms, 600 ohms and 50K ohms ( HI-Z)may be selected. (5) Mic In Gain (R12) This potentiometer, w hen turned clockwise, can increase the A udio Input [...]

  • Page 7

    FRONT P ANEL CONTROLS (7) Equalizer On/Off Switch (S3) This switch turns the Equalizer on and off. When the equalizer is off, adjusting the bass and treble controls have no eff ect on the output audio. (8) Equalizer Bass (R37) This rota ry potentiometer works only when the Eq ualizer Switch (7) is on. T urning this control clockwise incre ases the [...]

  • Page 8

    FRONT P ANEL CONTROLS Incoming signals will have up to 20dB of compression introduced. The EQplus compressor circuitry conta ins a limiter that is p reset at the factory. The limiter is set to limit the processed signals to 375 millivolts (-9 dB). When this level is reached the 1-st yellow LED on the bar graph will be on and the top Red (Limiting) [...]

  • Page 9

    FRONT P ANEL CONTROLS (14) EFFECTS PROCESSOR DELA Y Potentiometer (R42) This potentiometer works only if the Effects Processo r 3 position toggle switch is selecting either effect 1 or eff ect 2. The Delay control, when rotated clockwise increases, by up to about 80 milliseconds, the time that audio waveform is delayed. The delayed waveform is then[...]

  • Page 10

    REAR P ANEL CONTROLS 19 18 22 20 23 24 21 22 25 (18) MIC SELECT This three position switch selects the Y AESU, KENWOOD or ICOM microphone plugged into the 8 pin Mic Input (19). (Other microphones supported with mic adapters) (19) MIC INPUT This Input uses an 8 Pin microphone male connector. The impedance of this input is set by the A udio Input 3 p[...]

  • Page 11

    REAR P ANEL CONTROLS -1 1- (20) MIC INPUT This RCA female connector is used as a microphone input. T his connector works independent of the Mic Select switch (18) and may be used for another audio input source such as a microphone. The impedance of this input is set by the A udio Input 3 position toggle switch (4). (21) A UX INPUT This 5 Pin Din co[...]

  • Page 12

    -15- REAR PA NEL CONTROLS (23) AUDIO OUTPUTS 1,2 and 3 The audio output and PTT outputs of the EQplus uses thes e 5 pin DIN’s. When the A udio Output Rotary switch (22) is in the “1” position, audio is active at A udio Output 1. When the A udio Output Rotary switch (22) is in the “2” position, audio is active at A udio Output 2. When the [...]

  • Page 13

    -16- GETTING STA RTED TUT ORIAL Before plugging the power transformer into the wall, preset the EQplus controls as indicated: Power , Equalizer, Compressor/ Downward and Effects Processor all off . urn the Mic Select to select the microphone you will be using. If you are not using a mic but an external audio source like a W2IHY EQ, connect your aud[...]

  • Page 14

    GETTING STA RTED TUT ORIAL -17- Audio Input Gain (5) so that 2 or 3 Green Bar Graph LED’s light up. This may require adjusting both the Mic Gain control on the 8 Band EQ and the Audio Gain control on the EQplus. Using The EQplus head phone (PHONES) Monitor Connect a set of stereo headsets into the 1/4 inch “ Phones ” Connector located in the [...]

  • Page 15

    -18- GETTING STA R TED TUT ORIAL - T urn the Compressor control (11 ) fully counter clockwise. This setting passes uncompressed a udio thru the compressor. T urning the compressor control clockwise increase the amount of compression. Set the compression to the desired level. Yo u can turn the compression levels up to a point where ta lking into the[...]

  • Page 16

    The Level control (15) sets the amplitude that the audio delayed by the Eff ects Processor combines with the non delayed audio. Through experimentation, the user can find what Eff ects Processor Delay and Level settings are best for their voice characteristics. Both the Delay and Level controls have detents half way through the rotation of the cont[...]

  • Page 17

    MIC IN PIN 1 PIN 7 INTERNAL WIRING -20-[...]

  • Page 18

    -21- AUDIO OUT 1/2/3 5 Pin Male DIN Din connectors shown on side to be soldered Gnd PTT - Audio + Audio Balanced Output Hi-Z Output Low Impedance Balanced Output to Low Impedance Radio 5 PIN DIN AUDIO OUTPUT CONNECTION Low Impedance Unbalanced Output to Low Impedance Radio Low Impedance Unbalanced Output to High Impedance Radio High Impedance Unbal[...]

  • Page 19

    AUDIO OUT CABLE WIRING -22- Alinco DX77 Kenwood TS130/140 TS430/440 TS850/TS870 TS930/940/950 SG2020 K2 Jap an Radio JST -135 JST -245 Y aesu FT990/f t992 FT1000MP/M-V + Mic PTT GND ICOM 735 745/746 756/756 PRO 775 781 KACHINA Gnd PTT + Mic Gnd Gnd PTT PTT - Mic - Mic - Mic - Mic + Mic + Mic 8 Pin Mic Connector Pin 8 8 Pin Mic Connector Pin 5 8 Pin[...]

  • Page 20

    AUDIO OUT & POWER CABLE WIRING DRAKE TR7 DRAKE T4XB COLLINS 32S 1, 32S3 COLLINS KWM2A COLLINS 32V2, 32V3 Hallicrafters E.F . Johnson HI-Z HI-Z Y aesu FT101E FT901DM Galaxy Kenwood TS520/TS530 TS820/TS830 + Audio + Audio + Audio - Audio - Audio - Audio - Audio + Audio + Audio - Audio PTT PTT PTT PTT PTT GND GND GND GND GND 4 Pin Mic Connector Pi[...]

  • Page 21

    AUDIO OUT CABLE WIRING DIN connectors shown on the side to be soldered DO NOT SOLDER T O SHIELD OF DIN HI-Z LOW Z TRS BALANCED OUTPUT LOW Z UNBALNCED 1/4” MONO CONNECTOR LOW Z Single channel Input to Computer Sound Card HI Z TRS BALANCED OUTPUT LOW-Z LOW-Z LOW-Z HI-Z LOW-Z - Audio - Audio - Audio - Audio + Audio + Audio + Audio + Audio GND GND GN[...]