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Manual Telex 1505

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Summary
  • Telex 1505 - page 1

    1505 Audio Line Driver Service Manual 098-0355 CH 1 CH 1 Tx Rx MIC SPE AK E R CH 2 CH 2 CH 3 CH 3 CH 4 CH 4 LE V E L A D J U ST CH 1 CH 1 CH 1 MU TE Tx Rx HANDSE T MIC SPE AK E R CH 2 CH 2 CH 2 CH 3 CH 3 CH 3 CH 4 CH 4 CH 4 SPKR PT T 1505 M I XE R / LINE D R IV E R LE V E L A D J U ST ...

  • Telex 1505 - page 2

    1. General The Vega Model 1505 Audio Line Driver is a general purpose card that provides a reliable means of remotely controlling a variety of cus - tomer specified devices. The card is flexible. It can perform basic switching functions, custom - ized switching functions (via jumpers), or spe - cial user-defined functions. It plugs into a Tellabs T ...

  • Telex 1505 - page 3

    3.3 Mounting This card is intended to be mounted in a Tellabs Type 10 or equivalent open frame rack. To avert erroneous operation, don’t install the card adjacent to equipment that generates high temperature or electromagnetic radiation. Al - ways provide an appropriate service loop on in - terconnecting cables. 3.4 Access for Installation/Servic ...

  • Telex 1505 - page 4

    4. Connections 4.1 Power connections Connect positive 12 Vdc to pins 55 and 56. Connect the 12 Vdc return (normally ground) to pins 39 and 40. For best performance, use at least 20 AWG or larger wire for power connec- tions. 4.2 Signal Connections and Card Edge Con - nector Pin Assignment Refer to the schematic and Table 4 (shows the 1505’s pin a ...

  • Telex 1505 - page 5

    4.3.2 Microphone Jumpers Depending on which microphone you are us - ing, the following jumpers must be installed: JP2 - carbon element; JP3 - electret element; JP4 - dynamic element with a low output. No jumpers are installed for a dynamic micro - phone with a high output. 4.3.3 Receive Line Input Impedance A 600 Ω terminating resistor is provide ...

  • Telex 1505 - page 6

    4.4 Securing the Connections After all power and line connections are made, the wires should be neatly bundled and secured in place to prevent accidental breakage when in service. Use one or more of the cable guides supplied with the card rack, or tie in place with appropriate wire ties. 4.5 Interface connector Numbering The Tellabs (or equivalent) ...

  • Telex 1505 - page 7

    Table 4. Card Edge Connector Pin Assignments (Solder Side) (Component Side) 6 Card Alt #1 Alt #2 Function User Connection Edge Conn Conn 1 A A Ch #4 Rx Bal. Line In (-) 3 B B Ch #4 Rx Mute 5 C C Ch #4 Rx Bal. Line In (+) 7 D D Ch #4 Rx UnBal Line In 9 E E Ch #3 Rx UnBal Line In 11 F F Ch #3 Rx Bal Line In (+) 13 H H Ch #3 Rx Bal. Line In (-) 15 J J ...

  • Telex 1505 - page 8

    6. Theory of Operation 6.1 General The 1505 module uses a low loss, wide band transformer for each channel to interface to the phone line. Gain elements are low noise, low distortion, high gain operational amplifiers for quality performance. Each channel utilizes one half of dual compandor IC, configured as a compressor/limiter, to amplify and limi ...

  • Telex 1505 - page 9

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  • Telex 1505 - page 11

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  • Telex 1505 - page 12

    6.5 Microphone Input A microphone input is available through a jack on the front panel. It allows connection of a handset or palm type microphone through a standard modular phone connection. The jumper options allow the use of a carbon, electret, or dynamic element. The microphone amplifier is adjustable to accommodate the full range of microphones ...

  • Telex 1505 - page 13

    10 1505 Specifications Operating Temperature Range: ..................................0 ° Ct o6 0 ° C Power Requirements: .............................1 1t o1 6V rms semi-regulated, 250 mA nominal 600 Ω /10K Ω Balanced Receive Line Input Level: ....- 3 0d B mt o+ 1 0d B m , adjustable 10 K Ω /10 K Ω Unbalanced Receive Input Level: ..... 0 ...

  • Telex 1505 - page 14

    1505 Parts List Part No. Description Ckt Sym 012-0085 PCB SUB ASSY 1505MIX/LINE 031-0226 TEXT SPEC 1505 AUD MIX/LD 065-0463 PCB 1505 AUD MIX/LIN DR 071-0566 SCHEMATIC 1505 MIX/LINE D REF 102-0120 CAP CER 20P 5% 50V S2L C2 C5 C19 C23 102-0290 CAP CER100P S2L 5% 50V C8 C9 C22 C25 C76 102-0400 CAP CER 330P S2L 5% 50V C4 C7 C24 C26 102-0420 CAP CER 390 ...

  • Telex 1505 - page 15

    Part No. Description Ckt Sym 134-2837 RES RN55D 15.0K 1% 1/4W R100 R103 134-2967 RES RN55D 12.1K 1% 1/4W R98 134-3032 RES RN55D 15.8K 1% 1/4W R101 136-0001 RES COMP 2.7 5% 1/4W R107 136-0022 RES COMP 150 5% 1/4W R63 136-0040 RES COMP 4.7K 5% 1/4W R99 136-0044 RES COMP 10K 5% 1/4W R13 R16 R24 R26 R27 R30 R31 R35 R36 R39 R40 R46 R47 R51 R56 R57 R61 R ...

  • Telex 1505 - page 16

    Part No. Description Ckt Sym 286-1766 CONN JUMPER PLUG JP1 JP2 JP3 JP4 JP5 JP6 JP7 JP8 JP9 JP10 JP11 JP12 JP13 286-1772 CONNECTOR 36PIN STRIP TIN JP1 JP2 JP3 JP4 JP5 JP6 JP7 JP8 JP9 JP10 JP11 JP12 JP13 286-1964 TEST POINT YELLOW .055 MNT TP 1 TP2 TP3 TP4 TP5 TP6 TP7 TP8 TP9 TP10 TP11 TP12 TP13 TP14 TP15 TP16 TP17 TP18 TP19 TP20 Part No. Description ...

  • Telex 1505 - page 17

    NOV. 2000 Printed in U.S.A. 8601 East Cornhusker Highway , Lincoln, Nebraska, 68507 Phone: (402) 467-5321 / (800) 752-7560 Fax: (402) 467-3279 E-mail: vega @telex.com, Web: www .vega-signaling.com ...

Manufacturer Telex Category Stereo Amplifier

Documents that we receive from a manufacturer of a Telex 1505 can be divided into several groups. They are, among others:
- Telex technical drawings
- 1505 manuals
- Telex product data sheets
- information booklets
- or energy labels Telex 1505
All of them are important, but the most important information from the point of view of use of the device are in the user manual Telex 1505.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals Telex 1505, service manual, brief instructions and user manuals Telex 1505. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product Telex 1505.

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A complete manual for the device Telex 1505, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Telex 1505 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Telex 1505.

A complete Telex manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual Telex 1505 - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the Telex 1505, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the Telex 1505, that we can find in the current document
3. Tips how to use the basic functions of the device Telex 1505 - which should help us in our first steps of using Telex 1505
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with Telex 1505
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of Telex 1505 in a specific country, if it was not possible to solve the problem on our own.

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