Telex BTR-200 Series manual 29/3-30 Blank

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ALIGNMENT PROCEDURE:

Equipment Required:

D Signal Generator

D Audio Generator

D Deviation Meter

D Audio Voltmeter

1.Connect the audio generator to the AUX IN jack and set the output to 20 mV at 1 KHz.

2.Select the AUX pushbutton on therront panel.

3.Adjust VR601 (located just under the I1C push- button on the front panel) to maximum counterclockwise.

4.If the base is configured for an RTS intercom connect the load to the llC jack pn the rear panel.

5.Connect the audio voltmeter to the AUX OUT jack on the rear panel.

6.Adjust VR101 for a minimum reading.

7.Disconnect the generator and meter from the AUX jacks and de-select the AUX pushbutton on the front panel.

8.Connect the signal generator to the Receive Antenna jack. Set the deviation to ± 3 KHz at 1 KHz. Set the output to 1 mV. Set the frequen- cy to the channel 1 frequency listed in the chart

of the receive board alignment.

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I

9.Select the channel 1 pushbutton on the front panel.

10.Connect the deviation meter to the ANT TRANS jack.

11.Connect the audio voltmeter to U106 pin 7.

12A. On version 1 and 2 audio boards, adjust VR102 for 300 mV of audio.

12B. On version 3 and later audio boards with ver- sion 1 transmit boards, adjust VR102 for 1 volt of audio.

12C. On version 3 and later audio boards with ver- sion 2 transmit boards, first move the audio voltmeter to U501 pin 16 (on the transmit board). Then adjust VR102 for 140 mV of audio.

13. Adjust VR501 for ± 4.2 KHz deviation.

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Contents EnW ~iDD ~~~Table of Contents · Transmit, Receive & Audio Circuit Boards DescriptionChapter Controls and Connections MIC on PUSIH-lO-TALKI 27160-8-00I-AFront Panel-BTR200 Speaker / Local Monitor 8 n MIN 27160-B-002-ARear Panel BTR-200 Rear Panel Refer to Figure Location of Rev Level for Versions 1 Location of Rev Level for Versions 3 thruReceive Board Transmit Board Exploded View· BTR-200 Mechanical PartsPlaces TRANSMIT, Receive & Audio CIRCUIT,BOARDS Transmit Board U501 Device 1====-r===r===r====jPI=N=N=U=rM=B=EFR==~===r==~==l1Q50l Q502 Q503 +~04 ~@C501Transmit Board Component Layout Foil Side Transmit Board Component Layout Component SideQ503~502 Schematic Diagram Transmit Board Version 100P~PCB Transmit Assembly Receive Board Receive Board Receive Board Page Page Q301 Q309, Q311Q302 Q303 Q304 Q311 U304 U306 U309Voltage Tables· Receive Board Voltage Tables Receiv~ Board U303 U305 U307 U310 550 234876 U302 123Lp~lr FL30~368@ ~ ~@R33~@R334@ a ~050Schematic Diagram Receive Board Version 1 PCB Assembly ~~VC303I6i?7 Receive Board Componen~Layout Foil SideL4~ Receive Board Component Layout Component Side VersionCJl~VOB Frequency Dependent Components TablePCB Receive Assembly PCB Receive Assembly PCB Receive Assembly 878522M VC301-VC308 GAASFET, NE PCB Receive Assembly Receive Expanders Microphone AmplifierAuxiliary Input Amplifier Intercom DriverPower Supply Intercom InputHeadset and Speaker Amplifiers Transmit Mixer and Filter29/3-30 Blank Block Diagram Versions 1 ToI +0 0+ ~OEg+0 Rl~63 jRl02Ov· \.AJAudio Board Component Layout Foil Side Versions 1 UrI ~R17JSchematic Diagram Audio Board Version R1,~HEAO~.~22C113Jo ~C-\1ilBlI.0U~r.VY..,R137LI~-.=Joqa ~.C·@5It Details of Board Differences Between Versions 1DCD R182 C142 ~S~!~ ~lll~0113 CJC~5 +~87Audio Board Component Layout Foil Side Versions 3, 4,~I~ ~4~ ~4S C2~~~R230-------L.jN,-.L!~2.-.L-.-H~B~~9 R21~1Daoa CI6~~ ~EM32~Ms~ ~ R224 E I fJJ~F~IR~~~~199r~ C117H!f-V1\M,pI~£.jl,ltI1Ir-1N+--J ~1~1~2 +lQJl~iPCB Audio Assembly, 878520 Versions 1 thru PCB Audio Assembly 878520 Versions 1 thru Rln·2 Rln36Tioi Display Board Component Layout Foil Side Display Board Component Layout Component ViewTELEX@

BTR-200 Series specifications

The Telex BTR-200 Series is a well-regarded solution in the realm of wireless intercom systems, widely utilized in broadcast, film, and live event production settings. Renowned for its reliability, user-friendly interface, and robust performance, the BTR-200 Series has become a staple for professionals seeking efficient communication solutions.

One of the standout features of the BTR-200 Series is its frequency agility. The system operates in the UHF band, allowing users to switch frequencies to avoid interference from other wireless devices. This adaptability is crucial in environments where multiple wireless systems operate simultaneously. Users can easily reprogram frequencies to ensure clear and uninterrupted communication among team members.

Another key characteristic of the BTR-200 Series is its impressive range. The systems can provide coverage up to 1,000 feet in line-of-sight applications, making it suitable for large venues. This extensive range ensures that communication remains intact even in expansive settings, such as concert halls or outdoor arenas. Additionally, the enhanced RF performance ensures minimal dropouts, contributing to seamless communication.

The BTR-200 Series also distinguishes itself with its digital circuitry, which enhances audio clarity and reduces noise. This reliance on advanced technology results in crisp communication that is essential for coordinating complex productions. The system also features a low-latency design, which is particularly valuable in live performance settings where timing is crucial.

In terms of user interface, the BTR-200 Series is engineered with simplicity in mind. The beltpack units and base station feature intuitive controls that enable quick adjustments, making them easy to operate even under the pressures of a production environment. Each beltpack supports individual volume control, allowing users to customize their audio experience according to their preference.

Moreover, the BTR-200 Series is built for durability and long-lasting operation. The robust construction of its components ensures reliability, even in challenging environments. Rechargeable batteries offer extended operating time while reducing the need for constant replacements.

In summary, the Telex BTR-200 Series stands out for its frequency agility, extensive range, digital audio clarity, user-friendly interface, and durable build quality. These features combined make it an ideal choice for professionals in the broadcasting and live event production industries, promoting seamless and efficient communication essential for successful operations. The BTR-200 Series remains a trusted solution, proving its worth time and again in various high-pressure scenarios.