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ILD1000A Local Desk Set

Schematics

25

Local Desk Set Power and I/O Schematic Diagram - Sheet 4 of 4

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Содержание ILD1000A

Страница 1: ...Ave Mohnton PA 19540 USA 610 777 1374 800 492 1212 Fax 610 796 5954 VISIT WWW GAI TRONICS COM FOR PRODUCT LITERATURE AND MANUALS G A I T R O N I C S C O R P O R A T I O N A H U B B E L L C O M P A N...

Страница 2: ...event shall GAI Tronics warranty obligations with respect to services exceed 100 of the total cost of services provided hereunder Limitations Exclusions The warranty on any equipment supplied hereunde...

Страница 3: ...utton 5 Transmit Button and LED 5 INTERNAL MICROPHONE 5 HANDSET 6 PERSONALITY PROGRAMMING SWITCH SWA 6 SWA Switch Settings Table 6 ILD1000A BASIC LOCAL DESK SET FIELD REPLACEMENT ITEMS 6 OPERATION 7 F...

Страница 4: ...Local Desk Set to RPG Radio Connection Chart 13 SETTINGS AND ADJUSTMENTS 13 Transmit Level Adjustment 13 Line Receive Audio Input Level Adjustment 14 Intercom Audio Input Adjustment 14 Handset Microp...

Страница 5: ...complete identification number This applies to all components kits and chassis If the component part number is not known the order should include the number of the chassis or kit of which it is a par...

Страница 6: ...dio output levels line losses and noise factors vary Full duplex capable Useful for full duplex and trunking radio systems with talk and listen only See page 8 for a description of full duplex operati...

Страница 7: ...eas dry environments and certain types of clothing silk nylon etc because they contribute to static build up Similarly disconnect the test probe prior to removing the ground lead 5 All electrically po...

Страница 8: ...5 16 V dc 400 mA maximum Frequency response 3 dB 300 3000 Hz from 1 kHz reference Hum and noise Better than 45 dB below rated outputs Audio output to speaker 1 watt minimum with reference to input Aud...

Страница 9: ...peaker volume and as programming function keys CTL Control Button The CTL button is used in conjunction with the VOLUME Up or VOLUME Down buttons to control the local speaker IC Intercom Button The IC...

Страница 10: ...utput latches after MONITOR press until PTT occurs Monitor output activated only for duration of button press SWA 3 Parallel audio mute operation Mutes speaker audio while parallel desk set is transmi...

Страница 11: ...button to place the desk set in the transmit mode and initiate voice transmissions With the handset on hook transmit audio is picked up from the internal microphone Receiving Calls LocalSpeaker When...

Страница 12: ...nguishes and the desk set returns to the receive mode Handset Transmit Using the handset is recommended when the desk set is located in noisy surroundings Press the handset PTT bar or TRANSMIT button...

Страница 13: ...rews from the base and then rotate the base 180 Reinstall the four screws to the base and rotate the handset hook located on the front of the unit FCC Interference Warnings The FCC requires that manua...

Страница 14: ...permanently separated from the conductors of the other circuitry by a continuous and firmly fixed nonconductor such as porcelain tubes or flexible tubing in addition to the insulation on the wire Int...

Страница 15: ...radio accessory connector Damage to the radio may result As an option power can be supplied to the ILD1000A Desk Set from a listed Class 2 120 V ac wall adapter The desk set is rated as Class III SELV...

Страница 16: ...return at the base station and NOT grounded at the desk set s Local Desk Set to MCS 2000 Radio Connection Chart TS1 Pin Desk Set Function Wire Color Radio ConnectorPin Radio Function 1 DC power input...

Страница 17: ...ust be open with the circuit board exposed These procedures assume that the base station has been properly adjusted TransmitLevelAdjustment This level is factory set to provide 80 mVRMS into a 560 ohm...

Страница 18: ...is audio level is factory set to provide the reference volume with a transmit intercom audio level of 80 mV ac If adjustments are needed 1 Apply a steady 1 kHz tone to the transmit pair from a paralle...

Страница 19: ...set or internal microphone and it is input to the microcontroller where it is examined it to determine proper speaker handling Comparator U4b outputs a logic high when the handset PTT bar is depressed...

Страница 20: ...ing the speaker Less than 1 millivolt dc results in full output Power Supplies The power supplies for the low tier desk set operate in the linear series pass mode Programmable zener U21 serves as refe...

Страница 21: ...shorted RX audio is low or distorted Either the RX level pot or SWA 8 for RX audio level is set incorrectly See Line Receive Audio Input Level Adjustment section of this manual Ensure that the audio...

Страница 22: ...Troubleshooting ILD1000A Local Desk Set 02 12 18 Fuse Replacement CAUTION For continued safe operation replace fuses with the same type F1 is a Bussmann GMA 750mA fuse...

Страница 23: ...19 02 12 Main Circuit Board...

Страница 24: ...Main Circuit Board ILD1000A Local Desk Set 20...

Страница 25: ...21 02 12 Schematics...

Страница 26: ...Schematics ILD1000A Local Desk Set 22 Local Desk Set Microprocessor Section Schematic Diagram Sheet 1 of 4...

Страница 27: ...ILD1000A Local Desk Set Schematics 23 Local Desk Set RX Audio Schematic Diagram Sheet 2 of 4...

Страница 28: ...Schematics ILD1000A Local Desk Set 24 Local Desk Set TX Audio Schematic Diagram Sheet 3 of 4...

Страница 29: ...ILD1000A Local Desk Set Schematics 25 Local Desk Set Power and I O Schematic Diagram Sheet 4 of 4...

Страница 30: ...Schematics ILD1000A Local Desk Set 26 Notes...

Страница 31: ...o a particular radio s speaker or the speakers of a group of radios will unmute to broadcast a transmission only if the associated subaudible tone identifies it as belonging to the radio s user group...

Страница 32: ...Notes ILD1000A Local Desk Set 28...

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