Telex BTR-200 Series manual PCB Receive Assembly 878522M

Page 34

PCB Receive Assembly 878522M *(Continued)

Ref No.

 

Description

Part No.

Crystals and Filters

Ref No.

 

Description

Part No.

R351

l.5K

 

52154056

R352

16K

 

52154031

MX301

Y301'

Y3012

Y3013

FL301 FL302

FL3031

FL3032,3

FL304'

FL3042,3

FL305'

FL3052,3

FL306'

FL3062,3

FL307'

FL3072,3

FL308'

FL3082,3

FL309

Crystal Filter Insulator Mixer, ASK-1

Crystal, Receive, 171.905 MHz Crystal, Receive, 207.800 MHz Crystal, Receive, 213.800 MHz Filter, 10.7 Crystal

Filter, 11.56 MHz Crystal Filter, 11.075 MHz Crystal Filter, 11.56 MHz Cryst31 Filter, 11.075 MHz Crystal Filter, 12.36 MHz Crystal Filter, 11.7 MHz Crystal Filter, 12.36 MHz Crystal Filter, 11.7 MHz Crystal Filter, 13.1 MHz Crystal Filter, 12.5 MHz Crystal Filter, 13.1 MHz Crystal Filter, 12.5 MHz Crystal Filter, SFE 10.7 MHz J red

450471

760382

780089-1

780089-2

780089-3

780087-0

780087-4

780087-7

780087-4

780087-7

780087-5

780087-2

780087-5

780087-2

780087-6

780087-3

780087-6

780087-3

52990001

R353, R354

220

52154076

R355

l.5K

52154056

R356

10M, 1/4 watt

52154185

R357

10K

52154036

R358

22K

52154028

R359

lOOK

52154012

R360

220K

52154004

R361-R363

10K

52154036

R364

68K

52154016

R365-R367

10K

52154036

R368

4.7K

52154044

R369

l.5K

52154056

R370

16K

52154031

R371, R372

220

52154076

R373

l.5K

52154056

R374

10M, 1/4 watt

52154185

R375

10K

52154036

R376

22K

52154028

R377

lOOK

52154012

All resistors in ohms, 1/8 Watt, 5%, unless noted.

R378

220K

52154004

R379-R381

10K

52154036

o

R301

R302

R303

R304

R305

R306 R307

R308i

R3082,3

R309-R311

R312

R313

R314

R315

R316

R317

R318

R319

R320

R321

R322

R323

R324

R325-R327

R328

R329-R331

R332

R333

R334 R335, R336 R337 R338 R339 R340 R341 R342

R343-R345

R346

R347-R349

R350

 

Resistors

 

 

lK

52154060

 

10K

52154036

 

130

52154081

 

10

52154108

 

lK

52154060

 

100

52154084

 

470

52154068

 

180

52154078

 

10K

52154036

 

22

52154100

 

240

52154075

 

4.7K

52154044

 

1.5K

52154056

 

16K

52154031

 

220

52154076

 

330

52154072

 

l.5K

52154056

 

10M, 1/4 watt

52154185

 

10K

52154036

 

22K

52154028

 

lOOK

52154012

 

220K

52154004

 

10K

52154036

 

68K

52154016

 

10K

52154036

 

4.7K

52154044

 

1.5K

52154056

 

16K

52154031

 

220

52154076

 

l.5K

52154056

 

10M, 1/4 watt

52154185

 

10K

52154036

 

22K

52154028

 

lOOK

52154012

 

220K

52154004

 

10K

52154036

 

68K

52154016

 

10K

52154036

 

4.7K

52154044

 

 

 

R382

68K

52154016

R383-R385

10K

52154036

R386

2.2K

52154052

R387-R390

10K

52154036

 

 

 

 

 

 

Connectors

 

P301-P307

 

(Not Used)

 

P308"P311

3 Pin Header

670062

P312

 

(Not Used)

 

P313

3 Pin Header

670062

 

 

 

 

 

 

Transformers

 

1'301-1'303

Transformer

724770

1'304,1'305

Transformer

724774

1'306,1'307

 

(Not Used)

 

1'308-1'324

Transformer

724774

 

 

 

 

Diodes

 

 

 

 

D301-D304

Diode, IN4148

52228000

 

 

 

 

878522-*

Frequency

 

*Dash No.

Reference No.

 

 

 

 

169.505-171.905

MHz

-171

1

206.000-207.800

MHz

-207

2

212.000-213.800 MHz

-213

3

 

 

 

 

3-23

Image 34
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 Transmit Board Component Layout Foil Side +~04~@C501 Transmit Board Component Layout Component SideQ503~502 Schematic Diagram Transmit Board Version 100P~PCB Transmit Assembly Receive Board Receive Board Receive Board Page Page Q302 Q303 Q304 Q311 Q301Q309, Q311 U304 U306 U309876 U302 Voltage Tables· Receive Board Voltage Tables Receiv~ BoardU303 U305 U307 U310 550 234 123Lp~lr @R33~@R334@ a FL30~368@~ ~ ~050Schematic Diagram Receive Board Version 1 PCB Assembly ~~VC303L4~ I6i?7Receive Board Componen~Layout Foil Side 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 Auxiliary Input Amplifier Receive ExpandersMicrophone Amplifier Intercom DriverHeadset and Speaker Amplifiers Power SupplyIntercom Input Transmit Mixer and Filter29/3-30 Blank Block Diagram Versions 1 ToI Ov· +0 0+~OEg+0 Rl~63 jRl02 \.AJAudio Board Component Layout Foil Side Versions 1 UrI ~R17JHEAO~.~22C113Jo Schematic Diagram Audio Board VersionR1,~ ~C-\1ilBlI.0U~r.VY..,R137LI~-.=Joqa ~.C·@5It Details of Board Differences Between Versions 1DCD R182 C142 ~0113 ~S~!~~lll CJC~5 +~87Audio Board Component Layout Foil Side Versions 3, 4,~B~~9 ~I~ ~4~ ~4SC2~~~R230-------L.jN,-.L!~2.-.L-.-H R21~1Daoa ~Ms~ CI6~~~EM32 ~ 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.