PCB Receive Assembly 878662-* (Continued)

l)

Ref No.

Description

 

Part No.

 

 

Potentiometers

 

 

VR320

 

20K Potentiometer

57148071

VR321

 

50K Potentiometer

57148072

VR370

 

20K Potentiometer

57148071

VR371

 

50K Potentiometer

57148072

VR420

 

20K potentiometer

57148071

VR421

 

50K Potentiometer

57148072

VR470

 

20K Potentiometer

57148071

VR321

 

50K Potentiometer

57148072

 

 

 

 

 

 

 

Colls and Chokes

 

 

L301,L302

 

Coil, 2 1I2T, 10 mm .

724778

L303,L304

 

Coil, 2 1/2 CT, 10 mm

724766

L305

 

Coil, 2 1I2T, 10 mm

724775

L306

 

Coil,2 1I4T, 114 Tap, 10 mm

724765

L3071

 

Coil, TOKO, Red

723403-3

L3072

 

Coil, TOKO, Brown

723403-2

L3073

 

Coil, TOKO, Black

723403-1

L308 1

 

Inductor, .22/!H

35689047

L30823

 

Incuctor, .15 /!H

35689041

L309

 

Coil, 2 112 CT 10 mm

724766

L310

 

Inductor, 56 /!H

35689020

L311, L312

 

Inductor, 10 /!H

35689011

L313

 

Coil, 2 1I4T, 114 Tap, 10 mm

724765

L314-L319

 

(Not Used)

 

 

L320

 

Inductor, 10 /!H

35689011

L321

 

Inductor, 3.95 /!H

724774

L322

 

Coil, 455 kHz, discriminator

52982000

L323

 

Coil, IF, 10.7 MHz

53029000

L324-L369

 

(Not Used)

 

 

L370

 

Inductor, 10 /!H

35689011

L371

 

Inductor, 3.95 /!H

724774

L372

 

Coil, 455 kHz, discriminator

52982000

L373

 

Coil, IF, 10.7 MHz

53029000

L374-L419

 

(Not Used)

 

 

L420

 

Inductor, 10 /!H

35689011

L421

 

Inductor, 3.95 /!H

724774

L422

 

Coil, 455 kHz, discriminator

52982000

L423

 

Coil, IF, 10.7 MHz

53029000

L424-L469

 

(Not Used)

 

 

L470

 

Inductor, 10 /!H

35689011

L471

 

Inductor, 3.95 /!H

724774

L472

 

Coil, 455 kHz, discriminator

52982000

L473

 

Coil, IF, 10.7 MHz

53029000

FB321

 

Ferrite Bead

56632007

FB371

 

Ferrite Bead

56632007

FB421

 

Ferrite Bead

56632007

 

 

 

 

 

Transistors

Ref No.

Description

Part No.

 

 

 

 

Crystals and Filters

 

 

Crystal Filter Insulator

450471

 

Crystal Insulator

450474

HY301

Mixer, ASKI

760382

Y301 1

Crystal, Receive, 171.905 MHz

780092-1

Y3012

Crystal, Receive, 207.8 MHz

780092-2

Y301 3

Crystal, Receive, 213.8 MHz

780092-3

Y320

Crystal, Receive, 10.245 MHz

780088

Y3701

Crystal, Receive, 12.015 MHz

780088-6

Y37023

Crystal, Receive, 11.53 MHz

780088-3

Y420 1

Crystal, Receive, 12.815 MHz

780088-7

Y42023

Crystal, Receive, 12.155 MHz

780088-4

Y470 1

Crystal, Receive, 12.555 MHz

780088-8

Y47023

Crystal, Receive, 12.955 MHz

780088-5

CF320, CF32 1

Filter, 10.7 Crystal

780087-0

CF322

Filter, 455 kHz Ceramic

723088

CF3701

Filter, 11.56 MHz Crystal

780087-4

CF37023

Filter, 11.075 MHz Crystal

780087-7

CF371 1

Filter, 11.56 MHz Crystal

780087-4

CF37123

Filter, 11.075 MHz Crystal

780087-7

CF372

Filter, 455 kHz Ceramic

723088

CF4201

Filter, 12.36 MHz Crystal

780087-5

CF4202,3

Filter, 11.7 MHz Crystal

780087-2

CF421 1

Filter, 12.36 MHz Crystal

780087-5

CF4212,3

Filter, 11.7 MHz Crystal

780087-2

CF422

Filter, 455 kHz Ceramic

723088

CF4701

Filter, 13.1 MHz Crystal

780087-6

CF47023

Filter, 12.5 MHz Crystal

780087-3

CF471 1

Filter, 13.1 MHz Crystal

780087-6

CF471 23

Filter, 12.5 MHz Crystal

780087-3

CF472

Filter, 4%% kHz, Ceramic

620088

 

 

 

All resistors in ohms, lIS Watt, 5%, unless noted.

 

 

Resistors

R301

lK

 

52154060

R302

10K

 

52154036

R303

33

 

52154096

R304

10

 

52154108

R305

lK

 

52154060

R306

150

 

52154301

R307

3.3K

 

52154048

R308, R309

10K

 

52154036

R310

100

 

52154084

R311, R312

470

 

52154068

R313

10K

52154036

R314

2.2K

52154052

R315

47K

52154020

R316-R319

 

(Not Used)

R320

I.2K

52154058

Q301

Q302

Q303

Q320 Q321, Q322 Q370 Q371, Q372 Q420 Q421, Q422 Q470 Q471,Q472

GAASFET, NE 25139

Transitor, MPS901

JFET, J309

Transistor, MPSH 10

Transistor, MPS3704

Transistor, MPSH10

Transistor, MPS3704

Transistor, MPSHIO

Transistor, MPS3704

Transistor, MPSH 10

Transistor, MPS3704

760392

760376

54722000

54736000

54712000

54736000

54712000

54736000

54712000

54736000

54712000

 

R321

220

 

52154076

 

R322

68K

52154016

 

R323

l.5K

52154056

 

R324

lK

52154060

 

R325

330K

52154000

 

R326

220K

52154004

 

 

 

 

 

 

 

 

 

 

 

 

 

878662-*

 

 

 

 

 

 

 

 

Frequency

 

 

*Dash No.

Reference No.

 

 

 

 

 

 

171 MHz

 

-171

1

 

207 MHz

 

-207

2

 

213 MHz

 

-213

3

 

 

 

 

 

 

3-25

Page 36
Image 36
Telex BTR-200 Series manual Gaasfet, Ne

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.