Table of Contents
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Summary of Contents for FunkTronic Major BOS 1a
- Page 1 Major BOS 1a...
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Page 2: Table Of Contents
Table of Contents Page Abbreviations Control Elements Sockets Pinout Major BOS 1a Rearview of Major BOS 1a Major BOS 1a - General Remarks Talking to the Radio Volume Settings Muting of the Loudspeaker Tone Call Encoder Transmitter Control Connecting several Control Sets in Parallel... -
Page 3: Control Elements
6 - Volume control of the loudspeaker 7 - Loudspeaker 8 - PTT button of the handpiece 9 - Handpiece Major BOS 1a is also available without the buttons Call 1 and Call 2. mbos1a(06.09.2012) - 3 - Kompetent für Elektroniksysteme... -
Page 4: Sockets Pinout Major Bos 1A
Rearview of Major BOS 1a ST4, TB (tape, ext. speaker) ST1, S/E (radio circuit) ST3, PTT (e.g. foot switch) ST2, HS (headset) POWER, 12 VDC, max. 1.5 A, inside: positive pole, outside: GND Sockets Pinout Major BOS 1a All schemes show the sockets viewed from the back of the Major. -
Page 5: Major Bos 1A - General Remarks
Tone Call Encoder The Major BOS 1a has two single tone encoders, Call 1 (1750 Hz) and Call 2 (2135 Hz). The calls are sent using the respective buttons of the control panel. The tone call is sent as long as the button is pressed. -
Page 6: Transmitter Control
(bus wiring or star wiring). By decoding the PTT output (in this case used as an input) it is possible to mute the Major BOS 1a externally in order to avoid feedback between control sets placed adjacently to each other. -
Page 7: Jumper
Jumper Jumper Pos. Function JMP1a input impedance AF input 200 ohm, ST1 pin1-2 JMP1a input impedance AF input 200 ohm, ST1 pin1-2 JMP1a open input impedance AF input high-resistance, ST1 pin1-2 JMP1b squelch input + 5..12 volt, ST1 pin3 JMP1b squelch input GND, ST1 pin3 JMP1b open squelch input not active... -
Page 8: Board Layout
Board Layout JMP3a JMP3b JMP1a JMP1b JMP2a JMP2b ST6A ST7A ST5A 3 JMP4a 6 JMP4b ST6B Calibrating the AF levels The AF levels are calibrated correctly ex factory. If a recalibration is necessary please follow the steps below. Adjustment of the AF input: apply the AF-level specified by the radio (e.g. -
Page 9: Technische Daten
Technische Daten Operating voltage +12V -15% +25% Current consumption max. 1200 mA, typ. 500 mA AF input level (ST1, pin 1-2) nominal 500 mV at 200 ohm adjustment range using poti P1 250 - 1000 mV input impedance 200 ohm, 600 ohm oder 10 kohm, ex factory: 200 ohm AF output level (ST1, pin 7-8) ex factory 500 mV an 200 ohm... -
Page 10: General Safety Information
November 2005, the purchasers or users are obliged to return old equipment produced by us free of cost. FunkTronic GmbH will dispose of this old equipment at its own expense according to regulations. -
Page 11: Release Notes
Release Notes - 06.09.2012 first English version of Major BOS 1a manual mbos1a(06.09.2012) - 11 - Kompetent für Elektroniksysteme...
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