Tait TEL0038, TEL0040 Cct Description Part List

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Page 1

M830P-00 1

T830 Series II Paging

Base Station Equipment

148-174MHz

Initial Adjustment Manual

July 2000

M830P-00-1A0

Page 2

2 M830P-00

T800

Head Office New Zealand

Tait Electronics Ltd 558 Wairakei Road P.O. Box 1645 Christchurch New Zealand Phone: 64 3 358-3399 Fax: 64 3 358-3636

Radio Systems Division

535 Wairakei Road P.O. Box 1645 Christchurch New Zealand Phone: 64 3 358-3399 Fax: 64 3 358-2825

Australia

Tait Electronics (Aust) Pty Ltd 186 Granite Street Geebung Queensland 4034 P. O . B o x 67 9 Virginia Queensland 4014 Australia Phone: 61 7 3865-7799 Toll Free: 1800 077-112 Fax: 61 7 3865-7990

Beijing

Tait Mobile Radio (HK) Ltd Beijing Representative Office Room 812, Tower A Beijing Bright China Chang An Building No. 7 Jianguomennei Dai Jei Dongcheng District Beijing China 100005

Canada

Tait Mobile Radio Inc. Unit 5, 158 Anderson Avenue Markham Ontario L6E1A9 Canada Phone: 1 905 472-1100 Toll Free: 1 800 890-8248 Fax: 1 905 472-5300

France

Tai t F r an c e S a rl 2 Avenue de la Cristallerie 92 316 Sèvres, Cedex France Phone: 33 1 41 14-05-50 Fax: 33 1 41 14-05-55

Germany

Tait Mobilfunk GmbH Willstätterstraße 50 D-90449 Nürnberg 60 Germany Phone: 49 911 96 746-0 Fax: 49 911 96 746-79

Hong Kong

Tait Mobile Radio (HK) Ltd Unit 2216, North Tower Concordia Plaza 1, Science Museum Road Tsim Sha Tsui East Kowloon Phone: 852 2369-3040 Fax: 852 2369-3009

New Zealand

Tait Communications Ltd Unit 4, 75 Blenheim Road P. O. Bo x 1 1 8 5 Christchurch Phone: 64 3 348-3301 Fax: 64 3 343-0558

Singapore

Tait Electronics (Far East) Pte Ltd 4 Leng Kee Road SIS Building #05-11A Singapore 159088 Phone: 65 471-2688 Fax: 65 479-7778

Ta i w a n

Tait Mobile (Taiwan) Ltd 1104, No. 142 Chung Hsiao E. Rd Sec. 4 Ta ip e i Ta iw a n Phone: 886 2 2731-1290 Fax: 886 2 2711-6351

Thailand

Tait Mobile Radio Ltd 14/1 Suwan Tower Third Floor Soi Saladaeng 1 North Sathorn Road Bangrak Bangkok 10500 Thailand Phone: 662 267-6290 Fax: 662 267-6293

United Kingdom

Tait Europe Ltd Ermine Business Park Ermine Road Huntingdon Cambridgeshire PE18 6YA United Kingdom Phone: 44 1480-52255 Fax: 44 1480-411996

USA

Tait Electronics (USA) Inc. 9434 Old Katy Road Suite 110 Houston Texas 77055 USA Phone: 1 713 984-8684 Toll Free: 1 800 222-1255 Fax: 1 713 468-6944

Internet

http://www.taitworld.com

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Page 3

M830P-00 3

About This Manual

Scope This manual contains general, technical, tuning and adjustment

information on T830 Series II 50W and 100W paging base stations which comprise the following equipment:

50W base station T837 paging exciter

T838 50W power amplifier

100W base station T837 paging exciter

T839 100W power amplifier

PCB Information PCB information is provided for all current issue PCBs, as well

as all previous issue PCBs manufactured in production quantities, and is grouped according to PCB. Thus, you will find the parts list, grid reference index (if necessary), PCB layouts and circuit diagram(s) for each individual PCB grouped together.

Errors If you find an error in this manual, or have a suggestion on how

it might be improved, please do not hesitate to contact Customer Support, Tait Electronics Ltd, Christchurch, New Zealand (full contact details are on page 2).

Updating Equipment And Manuals

In the interests of improving performance, reliability or servicing, Tait Electronics Ltd reserve the right to update their equipment and/or manuals without prior notice.

All information contained in this manual is the property of Tait Electronics Ltd. All rights are reserved. This manual may not, in whole or part, be copied, photocopied, reproduced, translated stored or reduced to any electronic medium or machine readable form without prior written permission from Tait Electronics Ltd.

Ordering Tait Service Manuals

You can order additional copies of this manual from your nearest Tait Dealer or Customer Service Organisation. When ordering, make sure you quote the correct Tait product code ("M" number). Note that only the latest issue of the manual will be available for order.

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4 M830P-00

Table O f C ontents

This manual is divided into eight parts as listed below, with each part being further subdivided into sections. There is a detailed table of contents at the start of each part and/ or section.

Part Title

A Introduction To Servicing

B T835 Receiver - not used in this manual

C T837 Paging Exciter

D T838 & T839 Power Amplifiers

E T830 VCO PCB Information

F Installation

G T800-28-0X00 Paging Rack Frame

H T800 Ancillary Equipment

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M830P-00 AI

Part A Introduction To Servicing

This part of the manual is divided into the sections listed below. These sections provide some general and advisory information on servicing procedures, and a brief history of PGM800Win programming software.

Section Title Page

1.1

1.2

1.3

1.4

2.1

2.2

2.3

2.3.1

2.3.2

2.4

2.5

3.1

3.1.1

3.1.2

General

Additional Technical Information

Caution: CMOS Devices

Caution: Aerial Load

Caution: Beryllium Oxide & Power Transistors

Mechanical

Torx Recess Head Screws

Pozidriv & Philips Recess Head Screws

Disassembly/Reassembly

Exciters Power Amplifiers

Cover Screw Torques

Chassis & Cover Compatibility

Component Replacement

Leaded Components

Desoldering Iron Method Component Cutting Method

1.1

1.2

2.1

2.2

2.3

2.4

3.1

3.2

3.3

4.1

4.2

Surface Mount Devices

Cased Mica Capacitors

Software History

PGM800Win V1.0

PGM800Win V2.00

Figure Title Page

1.1

1.2

2.1

2.2

2.3

Typical Product Code & Serial Number Labels

Typical Anti-static Bench Set-up

Torx Screw Identification

Pozidriv & Philips Screw & Screwdriver Identification

Identification Of New-Design Chassis & Covers

3.2

4.1

1.1

1.2

2.1

2.2

2.4

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AII M830P-00

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M830P-00 General A1.1

1 General

1.1 Additional Technical Information

If you have any questions about this manual or the equipment it describes, please contact your nearest Tait Dealer or Customer Service Organisation. If necessary, you can get additional technical help from Customer Support, Tait Electronics Ltd, Christchurch, New Zealand (full contact details are on page 2).

When requesting information, please quote either the manual product code (e.g. M830P-00-1TA), or the equipment product code and serial number which are printed on a label on the back of the product (as shown in Figure 1.1).

this area used for regional Type Approval information

T838-10-0000

Rev 1

900000

Tait Electronics Limited Made in New Zealand

Figure 1.1 Typical Product Code & Serial Number Labels

product code serial number

T835-10-0000 Rev 1

Tait Electronics Limited Made in New Zealand

900000

If you require information about a particular PCB, please quote the full PCB internal part number (IPN) which is screen printed onto the top side of the board (refer to the appropriate PCB Information section in this manual for more details).

1.2 Caution: CMOS Devices

This equipment contains CMOS Devices which are susceptible to damage from static charges. Care when handling these devices is essential. For correct handling procedures refer to the manufacturers' data books, e.g. Philips data books covering CMOS devices, or Motorola CMOS data books, Section 5 'Handling', etc.

An anti-static bench kit (refer to Figure 1.2) is available from Tait Electronics Ltd under the following product codes:

• KS0001 - 1 conductive rubber bench mat

- 1 earth lead to connect the mat to ground

• KS0004 - 1 wrist strap.

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A1.2 General M830P-00

conductive

wrist strap

to building earth (not mains earth)

Figure 1.2 Typical Anti-static Bench Set-up

1.3 Caution: Aerial Load

conductive rubber

bench mat

The equipment has been designed to operate safely under a wide range of aerial loading conditions. However, we strongly recommend that the transmitter should always be operated with a suitable load to prevent damage to the transmitter output power stage.

1.4 Caution: Beryllium Oxide & Power Transistors

The RF power transistors in current use all contain some beryllium oxide. This substance, while perfectly harmless in its normal solid form, can become a severe health hazard when it has been reduced to dust. For this reason the RF power transistors should not be broken open, mutilated, filed, machined, or physically damaged in any way that can produce dust particles.

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M830P-00 Mechanical A2.1

2 Mechanical

2.1 Torx Recess Head Screws

Torx recess head screws are becoming the standard screw head type in all T800 Series II equipment, with Pozidriv and Philips recess head screws being used in fewer applications.

The Torx recess head has the advantage of improved screwdriver tip location, reducing the chances of screw head damage caused by the driver tip rotating within the recess. In addition, using a ball-tip Torx screwdriver allows you to drive a Torx head screw with the driver on a slight angle, which can be useful in situations where access is restricted.

It is important that you use the correct Torx screwdriver tip:

M3 screws - T10 M4 screws - T20.

Figure 2.1 below shows a typical Torx recess head screw (actual hardware may differ slightly from this illustration due to variations in manufacturing techniques).

"star" shaped recess with six internal notches

Figure 2.1 Torx Screw Identification

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A2.2 Mechanical M830P-00

2.2 Pozidriv & Philips Recess Head Screws

Pozidriv and Philips recess head screws will continue to be used in T800 Series II equipment in a few special applications. It is important that you use the correct type and size screwdriver for each screw type to avoid damaging the screw head.

It is particularly important that you do not use Philips screwdrivers on Pozidriv screw heads as the tapered driving flutes of the Philips screwdriver do not engage correctly with the parallel-sided slots in the Pozidriv screw head. This can result in considerable damage to the screw head if the screwdriver tip turns inside the recess.

Note:

If you find you need excessive downwards pressure to keep the screwdriver tip in the Pozidriv screw head, you are probably using the wrong type and/ or size screwdriver.

Figure 2.2 below shows the main differences between typical Pozidriv and Philips screw heads and screwdriver tips (actual hardware may differ slightly from these illustrations due to variations in manufacturing techniques).

Pozidriv Philips

internal notches

no special markings

"star" markings between slots

slots with parallel sides

slots with tapered sides

driving flutes with parallel sides

driving flutes with tapered sides

ridges between driving flutes

Figure 2.2 Pozidriv & Philips Screw & Screwdriver Identification

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M830P-00 Mechanical A2.3

2.3 Disassembly/Reassembly

2.3.1 Exciters

To carry out alignment or change option links, you need to remove only the top cover, i.e. the one adjacent to the front panel handle and on the opposite side to the main D-range connector (D-range 1/PL100).

You need to remove the bottom cover to access:

•Q370

• solder link SL501 (fast key option).

2.3.2 Power Amplifiers

You should carry out the tuning and power output level setting procedures with the cover on.

2.4 Cover Screw Torques

Exciters .. 1.36Nm/12in.lbf.

Power Amplifiers .. 0.9Nm/in.lbf.

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A2.4 Mechanical M830P-00

2.5 Chassis & Cover Compatibility

The chassis and covers used in T800 Series II modules incorporate a number of design changes to improve Electro-Magnetic Compatibility (EMC) performance. It is important that only the new-design covers are fitted to the new chassis to ensure correct mechanical fit and continued compliance with appropriate EMC Type Approval regulations.

Figure 2.3 below shows some of the main features which can be used to identify the new-design chassis and covers.

Chassis

←Top View

loom channel in top of walls

Rear View

4 holes in rear panel

→

groove in top of rear wall

Top Cover

provision for mounting speaker (future development)

ridge on top of rear wall

Bottom Cover

additional walls

Figure 2.3 Identification Of New-Design Chassis & Covers

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M830P-00 Component Replacement A3.1

3 Component Replacement

3.1 Leaded Components

Whenever you are doing any work on the PCB that involves removing or fitting components, you must take care not to damage the copper tracks. The two satisfactory methods of removing components from plated-through hole (PTH) PCBs are detailed below.

Note:

The first method requires the use of a desoldering station, e.g. Philips SBC 314 or Pace MBT-100E.

3.1.1 Desoldering Iron Method

Place the tip over the lead and, as the solder starts to melt, move the tip in a circular motion.

Start the suction and continue the movement until 3 or 4 circles have been completed.

Remove the tip while continuing suction to ensure that all solder is removed from the joint, then stop the suction.

Before pulling the lead out, ensure it is not stuck to the plating.

If the lead is still not free, resolder the joint and try again.

Note:

The desoldering iron does not usually have enough heat to desolder leads from the ground plane. Additional heat may be applied by holding a soldering iron on the tip of the desoldering iron (this may require some additional help).

3.1.2 Component Cutting Method

Cut the leads on the component side of the PCB.

Heat the solder joint out from the component side: do

Fill the hole with solder and then clear with solderwick.

sufficiently

to allow

not

easy

use undue force.

removal of the lead by drawing it

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A3.2 Component Replacement M830P-00

3.2 Surface Mount Devices

Caution: Surface mount devices (SMDs) require special storage, handling,

removal and replacement techniques. This equipment should be serviced only by an approved Tait Dealer or Customer Service Organisation equipped with the necessary facilities. Repairs attempted with incorrect equipment or by untrained personnel may result in permanent damage. If in doubt, contact your nearest Tait Dealer or Customer Service Organisation.

3.3 Cased Mica Capacitors

Cased mica capacitors can be removed by heating the top with a heavy-duty soldering iron and gently lifting the capacitor off the PCB with a solder-resistant spike or equivalent.

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M830P-00 Software History A4.1

4 Software History

28/06/96 PGM800Win Version 1.0 18/08/97 PGM800Win Version 2.00

4.1 PGM800Win V1.0

PGM800Win V1.0 is different in concept from DOS versions of PGM800 in that it is Win-

dows PGM800.

The major changes are outlined below:

based. It also includes many new and improved features over DOS versions of

• The Windows

• PGM800Win includes several new radio models which are not programmable with DOS versions of PGM800.

• Out of range frequencies will result in warning messages and will not be accepted for entry into the standard library module. User defined modules can be created, however, allowing variation from the standard library module.

• Channel numbers default to 0-127 to match the EPROM memory locations. However, the user can change this setting so that the channel numbers run from 1-128 to suit his/her particular needs.

Note:

The data files produced by BASEPROG V1.0 and all DOS versions of PGM800 are still compatible with PGM800Win V1.0.

 environment makes data entry and editing significantly easier.

4.2 PGM800Win V2.00

PGM800Win V2.00 is an upgraded and expanded version of PGM800Win V1.0. It has been developed specifically for T800 Series II base stations, but retains the ability to program Series I equipment.

The major changes are outlined below:

• PGM800Win V2.0 will program T800 Series II base station modules via serial communications.

• Deviation and reference modulation settings are written automatically to the radio.

1. Windows is a registered trademark of the Microsoft Corporation.

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A4.2 Software History M830P-00

• Extra information that is not stored in the radio (but which is still relevant to the radio) can be saved to a file on disk (e.g. note field, auxiliary pin names, etc.).

Note:

The data files produced by BASEPROG V1.0, all DOS versions of PGM800, and PGM800Win V1.0 are still compatible with PGM800Win V2.00.

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M830P-00 BI

Part B T835 Receiver

The T835 receiver is not covered in this manual. Refer to M830-00-201 (or later issue) for servicing information on the T835.

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BII M830P-00

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M830P-00 CI

Part C T837 Paging Exciter

This part of the manual is divided into six sections, as listed below. There is a detailed table of contents at the start of each section.

Section Title

1 General Information

2 Circuit Operation

3 Initial Tuning & Adjustment

4 Functional Testing

5 Fault Finding

6 PCB Information

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CII M830P-00

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M830P-00 T837 General Information C1.1

1 T837 General Information

This section provides a brief description of the T837 paging exciter, along with detailed specifications and a list of types available.

The following topics are covered in this section.

Section Title Page

1.1 Introduction 1.5

1.2

1.2.1

1.2.2

1.2.3

1.2.4

1.2.5

1.2.6

1.2.6.1

1.2.6.2

1.2.6.3

1.3 Product Codes 1.10

1.5 T837 Paging Product Range 1.11

Specifications

Introduction

General

RF Section

Low Speed Paging Modulator

Microcontroller

Tes t S ta nd a r ds

European Telecommunication Standard Telecommunications Industry Association Chinese Radio Regulatory Commission

1.6

1.7

1.8

1.9

Figure Title Page

1.1 T837 Main Circuit Block Identification 1.4

1.2 T837 Front Panel Controls 1.4

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C1.2 T837 General Information M830P-00

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M830P-00 T837 General Information C1.3

replace A4 pages C1.3/C1.4 with A3 pages C1.3/C1.4

Page 24

C1.4 T837 General Information M830P-00

replace A4 pages C1.3/C1.4 with A3 pages C1.3/C1.4

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Page 25

M830P-00 T837 General Information C1.5

1.1 Introduction

The T837 is a synthesised, microprocessor controlled, DFSK low speed paging exciter designed for single or multichannel

operation in the 148 to 174MHz frequency range2. With a standard power output of only 800mW, the exciter is designed for use with the T839 100W power amplifier. The RF section of the exciter comprises a frequency synthesiser which provides 170mW of frequency modulated RF drive to a two stage, wide band output amplifier. The synthesiser frequency is programmed via the serial communications port.

The low speed paging modulator section provides DFSK modulation. It incorporates a TCXO frequency reference and uses two point modulation to achieve modulation of data rates from 2400bps down to DC.

All components except those of the VCO are mounted on a single PCB. This is secured to a die-cast chassis which is divided into compartments to individually shield each section of circuitry. Access to both sides of the main circuit board is obtained by removing each of the chassis lids. There is provision within the chassis to mount small option PCBs.

The front panel has two indicator LEDs to show when the transmit carrier is on (red) and when the DC supply is connected (green). The T837 is 60mm wide and occupies a single space in a Tait rack frame, which has the ability to accommodate up to seven standard modules.

1. Although you can program the microcontroller with up to 128 channels, you must carry out the modulation adjustment procedure if you change frequency (see Section

3.5).

2. Although capable of operating over the 148-174MHz frequency range, the T837 has an 8MHz VCO switching range (see Section 1.2.3 and Section 3.1).

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C1.6 T837 General Information M830P-00

1.2 Specifications

1.2.1 Introduction

The performance figures given are minimum figures, unless otherwise indicated, for equipment tuned with the maximum switching range and operating at standard room

temperature (+22°C to +28°C) and standard test voltage (13.8V DC).

Where applicable, the test methods used to obtain the following performance figures are those described in the EIA and ETS specifications. However, there are several parameters for which performance according to the Chinese specification GB/T 15938 is given. Refer to Section 1.2.6 for details of test standards.

Details of test methods and the conditions which apply for Type Approval testing in all countries can be obtained from Tait Electronics Ltd.

1.2.2 General

Number Of Channels .. 128 (standard)

Supply Voltage:

Operating Voltage .. 10.8 to 16V DC Standard Test Voltage .. 13.8V DC Polarity .. negative earth only Polarity Protection .. crowbar diode Line Keying Supply (if required) .. -50V DC

Supply Current:

Tr an s mi t . . < 6 50 m A Standby - T837-2X-1020 .. <150mA

- T837-2X-1021 .. <200mA

Operating Temperature Range .. -30°C to +60°C

Dimensions:

Height .. 183mm Width .. 60mm Length .. 320mm

Weight .. 2.1kg

Time-Out Timer (optional) .. 0 to 5 minutes

ond steps

1. Additional channels may be factory programmed. Contact your nearest Tait Dealer or Customer Service Organisation.

2. Adjustable from 0 to 10 minutes in PGM800Win version 2.12 and later.

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adjustable in 10 sec-

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M830P-00 T837 General Information C1.7

Tail Timer .. 0 to 5 seconds adjustable in 100ms1

steps

Tra ns mi t K ey Tim e:

T837-20-102X .. <100ms T837-26-102X .. <30ms

Transmit Lockout Timer .. 0 to 1 minute adjustable in 10 second

steps

1.2.3 RF Section

Frequency Range .. 148-174MHz

Modulation Type .. DFSK

Frequency Increment:

T837-20-102X .. 5 or 6.25kHz T837-26-102X .. 2.5 or 3.125kHz

VCO Switching Range .. 8MHz

Load Impedance .. 50 ohms

Frequency Stability:

T837-2X-1020 .. ±1.0ppm, -20°C to +70°C

±2.0ppm, -30°C to +70°C

T837-2X-1021 .. ±1.5ppm, -30°C to +70°C

External Reference Frequency .. 100kHz to 25.6MHz in 100kHz steps (T837-2X-1021)

External Reference Amplitude .. 0 to +10dBm into 50Ω

Adjacent Channel Power .. -75dBc (ETS) (4.5kHz deviation) -70dBc (GB/T 15938)

Transmitter Side Band Noise: (no modulation, 15kHz bandwidth)

At ±25kHz .. -95dBc At ±1MHz .. -105dBc

Radiated Spurious Emissions:

Transmit .. -36dBm to 1GHz

-30dBm to 4GHz

Standby .. -57dBm to 1GHz

-47dBm to 4GHz

1. Adjustable in 20ms steps in PGM800Win version 2.12 and later.

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C1.8 T837 General Information M830P-00

Power Output .. 800mW ±200mW

Transmit Keying Noise .. -70dBc (GB/T 15938)

1.2.4 Low Speed Paging Modulator

Accepted Protocols/Speeds:

T837-20-102X .. POCSAG 512/1200 and FLEX 1600 T837-26-102X .. POCSAG 512/1200/2400 and

FLEX 1600

Input Data Levels .. TTL

Data Rise Time (10% - 90%):

T837-20-102X .. <150µs (GB/T 15938) T837-26-102X .. <115µs

1.2.5 Microcontroller

Auxiliary Ports:

Open Drain Type .. capable of sinking 2.25mA via 2k2Ω

max. .. 5V

1.2.6 Test Standards

Where applicable, this equipment is tested in accordance with the following standards.

1.2.6.1 European Telecommunication Standard

ETS 300 113 March 1996

Radio equipment and systems; land mobile service; technical characteristics and test conditions for radio equipment intended for the transmission of data (and speech) and having an antenna connector.

1.2.6.2 Telecommunications Industry Association

ANSI/TIA/EIA-603-1992

Land mobile FM or PM communications equipment measurement and performance standards.

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M830P-00 T837 General Information C1.9

1.2.6.3 Chinese Radio Regulatory Commission

GB/T 15938 - 1995

General specification for equipment of radio paging systems.

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C1.10 T837 General Information M830P-00

1.3 Product Codes

The three groups of digits in the T830 Series II product code provide information about the model, type and options fitted, according to the conventions described below.

The following explanation of T830 Series II product codes is not intended to suggest that any combination of features is necessarily available in any one product. Consult your nearest Tait Dealer or Customer Service Organisation for more information regarding the availability of specific models, types and options.

Model

The Model group indicates the basic function of the product, as follows:

T83X

-XX-XXXX T837 exciter T838 50W power amplifier T839 100W power amplifier

Type

The Type group uses two digits to indicate the basic RF configuration of the product.

The first digit in the Type group designates the frequency range:

T83X-X

The second digit in the Type group indicates the channel spacing:

T83X-XX

X-XXXX ’2’ for 148-174MHz

-XXXX ’0’ for wide bandwidth (25kHz) - standard ’6’ for wide bandwidth (25kHz) - USA

Options

T83X-XX-XXXX The Options group uses four digits and/or letters to indicate

any options that may be fitted to the product. This includes standard options and special options for specific customers. ’0000’ indicates a standard Tait product with no options fitted. The large number of options precludes listing them here.

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M830P-00 T837 General Information C1.11

1.4 T837 Paging Product Range

The following table lists the range of T837 paging product types available at the time this manual was published. Consult your nearest Tait Dealer or Customer Service Organisation for more information.

Frequency Range (MHz) 148-174

Deviation (kHz) 5

Baud Rate (bps) 1200 1200 2400 2400

Frequency Increments (kHz) 5/6.25 5/6.25 2.5/3.125 2.5/3.125

±1.0ppm -20°C to +70°C

TCXO

Exciter Type: T837- 20-1020 20-1021 26-1020 26-1021

±2.0ppm -30°C to +70°C

±1.5ppm -20°C to +70°C

••

You can identify the exciter type by checking the product code printed on a label on the rear of the chassis (Figure 1.1 in Part A shows typical labels). You can further verify the exciter type by checking the placement of an SMD resistor in the table that is screen printed onto the PCB (refer to Section 6.1 for more details).

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C1.12 T837 General Information M830P-00

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Page 33

M830P-00 T837 Circuit Operation C2.1

2 T837 Circuit Operation

This section provides a basic description of the circuit operation of the T837 paging exciter.

Note:

Refer to Section 6 where the parts lists, grid reference index and diagrams will provide detailed information on identifying and locating components and test points on the main PCB. The parts list and diagrams for the VCO PCB are in Part E.

The following topics are covered in this section.

Unless otherwise specified, the term "PGM800Win" used in this and following sections refers to version 2.00 and later of the software.

Section Title Page

2.1 Introduction 2.3

2.2 Microcontroller 2.4

2.3

2.3.1

2.4

2.4.1

2.5

Synthesised Local Oscillator

Two Point Modulation

VCO

VCO Supply

Low Speed Paging Modulator

2.5

2.6

2.7

2.8

2.5.1

2.5.2

2.5.3

2.5.4

2.5.5

2.5.6

2.6 Power Supply & Regulator Circuits 2.11

2.7 Transmit Timers 2.12

2.8 Exciter Drive Amplifier 2.13

General

AFC/PLL Operation

Data Path

External Reference Frequency (T837-2X-1021 Only)

Keying Inputs

Paging Modulator Links

2.8

2.9

2.10

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C2.2 T837 Circuit Operation M830P-00

Figure Title Page

2.1

2.2

2.3

2.4

2.5

2.6

T837 High Level Block Diagram

T837 Microcontroller Block Diagram

T837 Synthesiser Block Diagram

T837 AFC Block Diagram

T837 Power Supply & Regulators Block Diagram

T837 Transmit Timers

2.3

2.4

2.5

2.8

2.11

2.12

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Page 35

M830P-00 T837 Circuit Operation C2.3

2.1 Introduction

The individual circuit blocks which make up the T837 are:

• synthesiser

•VCO

•paging modulator

•drive amplifier

• voltage regulators.

Each of these circuit blocks is set in its own shielded compartment, formed as an integral part of the main chassis.

The configuration of the circuit blocks may be seen on a functional level in Figure 2.1. Refer to the circuit diagrams in Section 6.2 for more detail.

Reference

Oscillator

12.8MHz Data

Tx Reg

Drive Amp.

Ramp

Gen.

Synthesiser

Paging

Modulator

+22dBm

Lock Detect

Gate

Switch

Time

Delay

Time

Delay

Figure 2.1 T837 High Level Block Diagram

Switching

Control

Low Pass

Filter

Exciter Output

(800mW)

PA Control Signal (via exciter RF coax)

VCO

Page 36

C2.4 T837 Circuit Operation M830P-00

2.2 Microcontroller

(Refer to the microcontroller circuit diagram (sheet 8) in Section 6.2.)

Watchdog

Reset

Microcontroller Cavity

Channel

Auxiliary

Output

EEPROM

Select

Port

Synthesiser

12.8MHz Clock

External

Serial

Port

5V Digital Regulator

5V Reset

Microcontroller

Converter

Figure 2.2 T837 Microcontroller Block Diagram

Overall system control of the T837 is accomplished by the use of a member of the 80C51 family of microcontrollers (IC810). It runs from internal ROM and RAM, thus leaving all four ports free for input/output functions.

Non-volatile data storage is achieved by serial communication with a 16kBit EEPROM (IC820). This serial bus is also used by the microcontroller to program the synthesiser (IC740).

The main tasks of the microcontroller are as follows:

• program the synthesiser;

• interface with the PGM800Win programming software at 9600 baud via the serial communication lines on D-range 1 (PL100);

• coordinate and implement timing control of the exciter;

• control the front panel "Supply" LED (refer to Section 5.3).

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Page 37

M830P-00 T837 Circuit Operation C2.5

2.3 Synthesised Local Oscillator

(Refer to the synthesiser circuit diagram (sheet 7) in Section 6.2 and the VCO circuit diagram in Part E.)

12.8MHz

Reference

Oscillator

Ref

Mod

Serial

Bus

Paging

Modulator

Clk Data En

FREQUENCY SYNTHESISER IC

Reference

12.8MHz

ref

Divider

Controller

Phase

Detector

Charge

Pump

Programmable

Divider

Loop Filter

Prescaler

64/65

Modulation

VCO

VCO Buffer

Divider Buffer

Figure 2.3 T837 Synthesiser Block Diagram

The synthesiser (IC740) employs a phase-locked loop (PLL) to lock a voltage controlled oscillator (VCO) to a given reference frequency. The synthesiser receives the divider information from the control microprocessor via a 3 wire serial bus (clock, data, enable). When the data has been latched in, the synthesiser processes the incoming signals from the VCO buffer (f

) and the phase modulator (f

ref

A 12.8MHz reference frequency is fed from the paging modulator section to the frequency synthesiser Ref

(IC740 pin 20). This reference frequency is derived from the

VCXO (X101), which is locked to the internal frequency standard provided by the TCXO (X100). The reference frequency has been modulated in the VCXO by the incoming data to allow the synthesiser loop to modulate down to DC. This 12.8MHz reference frequency is divided down to 6.25kHz or 5.0kHz in the synthesiser IC (IC740).

VCO PCB

Output

Buffer

+22dB

L.O.

A buffered output of the VCO (Q795) is divided with a prescaler and programmable divider which is incorporated into the synthesiser chip (IC740). This signal is compared with the phase modulated reference signal at the phase detector (also part of the synthesiser chip). The phase detector outputs drive a balanced charge pump circuit (Q760, Q770, Q775, Q780, Q785) and active loop filter (IC750 pins 5, 6 & 7) which produces a DC voltage between 0V and 20V to tune the VCO. This VCO control line is further filtered to attenuate noise and other spurious signals. Note that the VCO frequency increases with increasing control voltage.

If the synthesiser loop loses lock, a pulsed signal appears at LD (pin 2) of IC740. This signal is filtered and buffered by IC750 pins 1, 2 & 3, producing the Lock-Detect signal used to shut off the power supply to the drive amplifier. IC750 pin 1 is at 20V when the synthesiser is out of lock.

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C2.6 T837 Circuit Operation M830P-00

2.3.1 Two Point Modulation

Frequency modulation occurs by modulating both the VCO input and the synthesiser reference input. This process is called two point modulation and ensures a flat modulation response from 0 to 2400bps.

The PLL has a fast response time, allowing a Tx key-up time of <30ms. Because of this fast response time the PLL sees lower modulation frequencies superimposed on the VCO as an error and corrects for it, resulting in no modulation on the carrier. At modulation frequencies greater than 300Hz the loop cannot correct fast enough and modulation is seen on the carrier.

To achieve low frequency modulation, the reference oscillator is also modulated so that the phase detector of IC740 detects no frequency error under modulation. Thus, the synthesiser loop will not attempt to correct for modulation and the data frequency response of the transmitter remains unaffected.

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Page 39

M830P-00 T837 Circuit Operation C2.7

2.4 VCO

(Refer to the VCO circuit diagram in Part E.)

The VCO transistor (Q1) operates in a common source configuration, with an LC tank circuit coupled between its gate and drain to provide the feedback necessary for oscillation. The VCO control voltage from the loop filter (IC750 pin 7) is applied to the varicaps (D1-D4) to facilitate tuning within an 8MHz band of frequencies. A trimcap (CV1) is used for coarse tuning of the VCO. The output from the oscillator circuit drives a cascode amplifier stage (Q2, Q3) which supplies +10dBm (typically) to a further stage of amplification, Q5. This is the final amplifier on the VCO PCB, and delivers +22dBm (typically) to the exciter drive amplifier.

A low level "sniff" is taken from the output of Q3 and used to drive the divider buffer (Q795) for the synthesiser (IC740).

The VCO operates at the actual output frequency of the exciter, i.e. there are no multiplier stages. The VCO is modulated by superimposing the data signal onto the control voltage and by frequency modulating the reference signal.

2.4.1 VCO Supply

The VCO is supplied from two switched +9V supplies under the control of the Tx-Reg. supply.

The VCO (Q1) and buffer amplifier (Q2 & Q3) are supplied from one +9V switched supply by Q540 via the capacitor multiplier (Q550, C550).

The output amplifier is supplied from the other +9V supply by Q520, Q530, and Q510.

A delay circuit holds the VCO on for a short time after the Tx-Reg. supply has been switched off. This is to allow the RF power circuits (both exciter and PA) to ramp down in the correct manner before the VCO is switched off.

Page 40

C2.8 T837 Circuit Operation M830P-00

2.5 Low Speed Paging Modulator

(Refer to the low speed paging modulator circuit diagram (sheet 2) in Section 6.2.)

2.5.1 General

The T837-2X-102X is a dedicated paging exciter. The low speed paging modulator section of the exciter accepts TTL data at the D-range input and modulates the synthesiser using a two point modulation method that provides modulation of data input frequencies of 2400bps down to DC (all 1’s or all 0’s).

The paging modulator section incorporates a TCXO frequency reference and a modulatable VCXO which is locked to the reference frequency from the TCXO.

The paging modulator also has provision for fitting an optional FFSK modem PCB.

2.5.2 AFC/PLL Operation

-1

Data Line

Summing

Amp.

Modulated Reference

Figure 2.4 T837 AFC Block Diagram

The TCXO is the default frequency standard. In PLL mode, the slave 12.8MHz VCXO is phase locked to the TCXO. Both the TCXO and the VCXO outputs are clipped in IC100 and IC102 and then frequency divided by 4 in the twisted ring counters, IC105 (TCXO) and IC110 (VCXO). The slave VCXO is also fed to the synthesiser reference input.

VCXO AFC

Loop Filter

12.8MHz TCXO

Each twisted ring counter provides four divide-by-four outputs, the Q and not Q having the relative phases 0°, 90°, 180° and 270°. These two signals are combined in the two XOR gate phase discriminators in IC115 to provide two beat frequencies that are in phase quadrature. Both these outputs are filtered to pass the low frequency beat signal, which is a 5Vpp triangle wave.

The output from pin 8 of IC115 is then differentiated to provide a further 90° phase shifted square wave output on pin 14 of IC120. The amplitude of the output is proportional to the frequency difference between the TXCO and the VCXO. The square wave is then rectified by gating the signal with an inverted version of itself through a CMOS

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Page 41

M830P-00 T837 Circuit Operation C2.9

switch. The switch is controlled by a square wave derived from the triangle wave on pin 7 of IC120. This square wave will either be in-phase or inverted with respect to the output on pin 14 of IC120, depending on whether the VCXO frequency is higher or lower than the TCXO frequency.

The output from the CMOS switch (pin 14 of IC150) is a direct voltage which has amplitude and sense that is relative to the beat frequency. This signal is used as the control voltage for the VCXO. The rectified signal is then summed with an inverted version of the data, which cancels the effect of the data on the loop filter but still allows the VCXO to follow the TCXO frequency. Although the VCXO and TCXO are not on the same frequency when data is being applied, the VCXO frequency will not drift with respect to the TCXO.

2.5.3 Data Path

The input data enters the radio via pin 12 of D-range 1 (PL100). The data is fed into the paging modulator at I/O pad P101, which is buffered by Q100, and then through an XOR gate (IC115 pins 2 & 3) which gives the option of inverting the data.

IC140 pins 5 & 6 translate the level of the signal to 9Vpp, and then the data passes through an attenuator and data filter. The data path is switched at the output of the filter by IC150 pins 1, 2 & 15, which allows the data to be removed from the AFC loop for testing purposes.

From the switch the data travels three paths:

• The first path is via RV100 to the LOOP-MOD output to modulate the VCO.

• The second path is through RV101 to the summing amp. This data modulates the control line of the VCXO, which produces the modulated reference.

• The third data path, which originates at the switch, is the feedforward data path. The data is inverted, attenuated by RV102 and then summed with the output of the AFC. The effect of this data path is to stop the loop filter from correcting the VCXO frequency deviation caused by the data on the data line.

2.5.4 External Reference Frequency (T837-2X-1021 Only)

The paging modulator section of the T837-2X-1021 exciter incorporates an additional synthesiser (*IC200) which can be configured to provide a 12.8MHz reference frequency from an external frequency standard. This external frequency can be from 100kHz up to

25.6MHz in 100kHz steps.

When using an external reference, you must set the onboard synthesiser’s reference frequency according to the frequency of the external reference. This is achieved by placing resistors *%R240 - *%R247 in a pattern corresponding to a binary number which represents the reference divider ratio (see Section 3.6).

The internal TCXO (%X100) is used as the standard reference frequency, but is phaselocked to the external frequency when this is applied.

Page 42

C2.10 T837 Circuit Operation M830P-00

When there is no external reference frequency present, *Q104 is turned off and *IC160 switches 2.5V DC to the AFC input of the internal TCXO. The reference frequency can be adjusted by the trimmer on the TCXO itself.

When an external reference frequency is present, *Q104 switches on and *IC160 switches the synthesiser phase detector output voltage to the AFC input of the internal TCXO. A buffered 12.8MHz output of the internal TCXO is fed back to the synthesiser oscillator input and compared with the external reference frequency, thus ensuring that the internal TCXO is phase-locked to the external reference frequency.

The synthesiser Lock-Detect signal drives an LED *D116 on the main PCB which is lit when the synthesiser is locked to the external reference frequency. The Lock-Detect signal is also fed to pin 8 of D-range 1 (PL100) for external monitoring purposes. The output is low when the synthesiser is locked.

2.5.5 Keying Inputs

There are two ways to key the exciter:

• pulling the Tx-Key line low (pin 13 on D-range 1 [PL100]) at the rear of the set);

• via the modem carrier detect line when the optional modem PCB is fitted.

Note:

Link S100 must be connected when using the Tx-Key line input.

2.5.6 Paging Modulator Links

Three solder links are provided in the paging modulator circuit. Their functions are described in the following table:

Standard

Link Function

S100 Tx-Key linked ties the Tx-Key line to +5V for earthed Tx-Key

S101 invert data not linked inverts the incoming data

S102 invert key not linked inverts the key line (connected when using

Setting Description

line operation

modem carrier detect)

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Page 43

M830P-00 T837 Circuit Operation C2.11

2.6 Power Supply & Regulator Circuits

(Refer to the regulators circuit diagram (sheet 6) in Section 6.2.)

+9V

Buffer

Tx Enable

Micro-

controller

Power

Switch

Tx Reg.

13.8V Nom. From Rear

D-Range

Crowbar

Diode

13.8V Nom.

Reg

Amp

5V 5V Dig9V 20V

Switching

5V Dig

Reg

Watchdog

Timer

LVI

Figure 2.5 T837 Power Supply & Regulators Block Diagram

The T837 is designed to operate from a 10.8-16V DC supply (13.8V nominal). A 5.3V regulator (IC630) runs directly from the 13.8V rail, driving much of the synthesiser circuitry. It is also used as the reference for a DC amplifier (IC640, Q630, Q620) which provides a medium current capability 9V supply.

A switching power supply (Q660, Q670) runs from the 9V supply and provides a low current capability +20V supply. This is used to drive the synthesiser loop filter (IC750), giving a VCO control voltage range of up to 20V, and the Lock-Detect amplifiers.

Ultimate control of the transmitter is via the Tx-Reg. supply, switched from 9V by Q610. This is enabled via the Tx-Enable signal from the modulator, and microprocessor.

µP

µP Reset

A crowbar diode is fitted for protection against connection to a power supply of incorrect polarity. It also provides transient overvoltage protection.

Note:

A fuse must be fitted in the power supply line for the diode to provide effective protection.

Page 44

C2.12 T837 Circuit Operation M830P-00

2.7 Transmit Timers

The transmit tail timer, transmit timeout timer and transmit lockout timer can all be set from PGM800Win. The fields for setting these are found on the system information page. These three timers operate as follows (refer also to Figure 2.6):

Timer Function Adjustment

Transmit Tail Sets the tail time during which the

transmitter stays keyed after the external key source has been removed.

Transmit Timeout Sets the maximum continuous trans-

mission time. Once the timer has timed out, the transmitter must be keyed again, unless prevented by the transmit lockout timer.

Transmit Lockout Sets the period of time that must

elapse after a timeout before the transmitter can re-transmit. Once the timer has timed out, the transmitter can be keyed again.

a. Adjustable in 20ms steps in PGM800Win version 2.12 and later. b. Adjustable from 0 to 600 seconds in PGM800Win version 2.12 and later.

Tx-Enable

Tx-Reg.

0-5 seconds in 100ms

steps

0-300 secondsb in 10 second steps

0-60 seconds in 10 second steps

Tail Time

Tx-Reg.

Lockout Time

Timeout

Time

Figure 2.6 T837 Transmit Timers

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Page 45

M830P-00 T837 Circuit Operation C2.13

2.8 Exciter Drive Amplifier

(Refer to Figure 2.1 and the exciter circuit diagram (sheet 3) in Section 6.2.)

A two-stage, wide band amplifier (Q365, Q370) provides an output level of approximately 800mW (+29dBm) for an input of 170mW (+22dBm) from the VCO. IC330 pins 5, 6 & 7, Q310, and Q315 provide a 10.5V regulated supply for the exciter.

To reduce the spurious output level when the synthesiser is out-of-lock, the Tx-Reg. and Lock-Detect signals are gated to inhibit the exciter control circuit and to switch off the RF signal at the input to the drive amplifier. This is achieved by a PIN switch attenuator (D340, D350, D360).

Cyclic keying control is provided by additional circuitry consisting of several time delay, ramp and gate stages:

• Q305, IC330 pins 5, 6 & 7 power ramping

• Q340, Q345 Tx-Reg. and Lock-Detect

• Q320, Q325, Q330, Q335 delay and PIN switch drive.

This is to allow the RF power circuits (both exciter and PA) to ramp up and down in a controlled manner so that minimal adjacent channel interference is generated during the transition.

R359, R342 and R344 form a 6dB attenuator to provide good VCO/drive amplifier isolation.

The output attenuator (R360, R362, R364, R366) assists in reducing exciter/PA interaction while also ensuring a good match for Q370.

Note:

The exciter provides a DC control signal to the PA via the RF coax. This is injected via L390.

gate

Page 46

C2.14 T837 Circuit Operation M830P-00

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Page 47

M830P-00 T837 Initial Tuning & Adjustment C3.1

3 T837 Initial Tuning & Adjustment

Caution: This equipment contains CMOS devices which are susceptible to dam-

age from static charges. Refer to Section 1.2 in Part A for more information on anti-static procedures when handling these devices.

The following section describes the full tuning and adjustment procedure and provides information on:

• channel programming

• synthesiser alignment

• modulator adjustment

• external reference frequency configuration (T837-2X-1021 only).

Note:

Unless otherwise specified, the term "PGM800Win" used in this and following sections refers to version 2.00 and later of the software.

Section Title Page

3.1 Introduction 3.3

3.2 Channel Programming 3.3

3.3 Test Equipment Required 3.4

3.4 Synthesiser Alignment 3.5

3.5 Modulator Adjustment 3.6

3.6 External Reference Frequency Configuration (T837-2X-1021 Only)

3.7

Figure Title Page

3.1

3.2

T837 Test Equipment Set-up

T837 100Hz VCO Control Line Wave Form

3.4

3.6

Page 48

C3.2 T837 Initial Tuning & Adjustment M830P-00

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Page 49

M830P-00 T837 Initial Tuning & Adjustment C3.3

3.1 Introduction

When you receive your T837 exciter it will be run up and working on a particular frequency (the "default channel") 8MHz VCO switching range (i.e. ±4MHz from the factory programmed frequency), you will need to:

• reprogram the exciter with the PGM800Win software (refer to the PGM800Win programming kit and Section 3.2 below);

• carry out the modulator adjustment procedure described in Section 3.5.

However, if you want to switch to a frequency outside the 8MHz VCO switching range, you will have to:

• reprogram the exciter with the PGM800Win software;

• carry out the synthesiser alignment procedure described in Section 3.4;

• carry out the modulator adjustment procedure described in Section 3.5.

. If you want to switch to a frequency that is within the

3.2 Channel Programming

You can program up to 128 channel frequencies into the exciter’s EEPROM memory (IC820) by using the PGM800Win software package and an IBM PGM800Win to select the exciter’s current operating frequency (or "default channel").

 PC. You can also use

If the exciter is installed in a rack frame, you can program it via the programming port in the speaker panel. However, you can also program the exciter before it is installed in a rack frame as follows:

• by using a T800-01-0010 calibration test unit;

•via D-range 1.

If you do not use the T800-01-0010, you will have to connect the PC to the exciter via a module programming interface (such as the T800-01-0004).

For a full description of the channel programming procedure, refer to the PGM800Win programming software user’s manual.

1. Use the "Read Module" function in PGM800Win to find out what the default channel is.

Page 50

C3.4 T837 Initial Tuning & Adjustment M830P-00

800

3.3 Test Equipment Required

You will need the following test equipment:

• computer with PGM800Win installed

• T800 programming kit

• module programming interface (e.g. T800-01-0004 - optional)

• 13.8V power supply

• digital multimeter

• function generator

•RF power meter

•frequency counter

or modulation analyser

•modulation meter

• oscilloscope (digital preferred)

• 20dB pad

Figure 3.1 shows a typical test equipment set-up.

+13.8V

PSU

-Ve

+5V

Function

Generator

TTL

Centre I/P

Data I/P

Exciter

Serial

via module programming interface (e.g. T800-01-0004)

Com

20dB pad

Key

RF O/P

RF Power

Meter

Frequency

Counter

Modulation

Meter

AF O/P

Oscilloscope

PGM

Win

Figure 3.1 T837 Test Equipment Set-up

Note:

Although the T800-01-0010 calibration test unit can be used to program the T837 paging exciter, it is not suitable for tuning and adjustment procedures because of the different pin allocations of D-range 1 (PL100).

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M830P-00 T837 Initial Tuning & Adjustment C3.5

3.4 Synthesiser Alignment

Ensure that the T837 has been programmed with the required frequencies using PGM800Win software.

Select a channel using PGM800Win.

Connect a high impedance voltmeter to PL4-1 or the junction of L1 and R1 in the VCO (this measures the synthesiser loop voltage).

Key the transmitter by earthing the Tx-Key line.

Tune VCO trimmer CV1 for a synthesiser loop voltage of 9V.

Check that the exciter output power is 800mW ±200mW (measured at the rear panel N-type connector).

If required, measure and adjust the exciter output frequency as follows:

• apply +5V DC to pin 11 of D-range 1 (PL100) - this changes the mode of

operation to PLL so that the carrier frequency can be observed - and measure the output frequency at the rear panel N-type connector;

• adjust the trimmer on the TCXO (%X100) if required;

• remove the +5V DC from pin 11.

Caution: This trimmer is susceptible to physical damage. Do not exert a down-

ward force of more than 500g (1lb) when adjusting.

Page 52

C3.6 T837 Initial Tuning & Adjustment M830P-00

3.5 Modulator Adjustment

Apply +5V DC to pin 12 (DATA input) of D-range 1.

Monitor the exciter output frequency and adjust RV102 (DC frequency offset) to give an output frequency of F

Remove the +5V DC from pin 12 and apply a 100Hz 5Vp-p square wave to pin 12.

Monitor the signal at TP100 with an AC coupled oscilloscope set to 50mV/div. and adjust RV101 (reference modulation) until the triangle wave amplitude is minimised.

Change the frequency of the square wave to 600Hz.

Monitor the frequency deviation on the exciter output with a modulation meter and adjust RV100 (VCO modulation) to obtain ±4.5kHz deviation.

Monitor the VCO control line at PL4-1 or the junction of L1 and R1 in the VCO using an AC coupled oscilloscope set to at least 20mV/div.

carrier

+ 4.5kHz.

Change the frequency of the square wave back to 100Hz and check that the control line still has a good trapezoidal wave form with flat top and bottom.

Note 1:

Note 2:

You may have to readjust RV101 & RV100 alternately to achieve a square wave on the VCO control line at both 600Hz and 100Hz with a deviation of ±4.5kHz. Figure 3.2 shows a typical 100Hz VCO control line wave form with RV101 and RV100 set correctly.

Figure 3.2

If the lower cut off frequency of an AC coupled oscilloscope is too high, excessive distortion may be introduced which will result in ‘sag’ on the square wave displayed. Determine if this is a problem by directly monitoring the original square wave source and observe any sag. If there is sag, switch the oscilloscope to DC and use a 10µF capacitor in series with the oscilloscope probe (observing the correct polarity) to directly monitor the VCO control line. Note that the trace settling time will be approximately one minute.

T837 100Hz VCO Control Line Wave Form

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Page 53

M830P-00 T837 Initial Tuning & Adjustment C3.7

3.6 External Reference Frequency Configuration

(T837-2X-1021 Only)

When using an external reference frequency, you must set the onboard synthesiser’s reference frequency according to the frequency of the external reference. This is achieved by placing resistors *%R240 - *%R247 in a pattern corresponding to a binary number which represents the reference divider ratio.

If you are using a 10MHz external reference frequency, you need only carry out steps 4 and 5 in this section. You do not need to carry out steps 1, 2 and 3 because the T837 has already been configured at the factory for a 10MHz external reference.

However, if you are using an external reference frequency other than 10MHz, you must configure the internal synthesiser as described in steps 1, 2 and 3 before proceeding to steps 4 and 5.

1. Divide the external oscillator frequency by 100kHz.

2. Convert the result to binary. You can use the following table to do this: select the binary values in row three which add up to the result obtained in step 1, then place a “1” in these positions and a “0” in the others.

MSB LSB

N7 N6 N5 N4 N3 N2 N1 N0

128

*%R240 *%R241 *%R242 *%R243 *%R244 *%R245 *%R246 *%R247

3. Where there is a “0” in the binary number, place a zero ohm resistor in the corresponding component location shown in the table. Where there is a “1”, leave an open link.

Example:

The following example shows the resistor pattern for a 10MHz external reference frequency is calculated.

10MHz 100kHz

=100

100 = 64 + 32 + 4

therefore place resistors *%R240, *%R243, *%R244, *%R246

and *%R247 and leave all other links open

MSB LSB

N7 N6 N5 N4 N3 N2 N1 N0

128

0 1 100100

*%R240

*%R241 *%R242 *%R243 *%R244 *%R245 *%R246 *%R247

Page 54

C3.8 T837 Initial Tuning & Adjustment M830P-00

4. Connect the external reference frequency at a level of 0dBm to +10dBm/50Ω into

the external reference input and check that green LED *D116 lights.

5. Measure the TCXO (%X100) AFC voltage at %IC160 pin 4 with a high impedance voltmeter and adjust the TXCO trimmer (if necessary) to obtain 2.5V DC ±0.2V.

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Page 55

M830P-00 T837 Functional Testing C4.1

4 T837 Functional Testing

Caution: This equipment contains CMOS devices which are susceptible to dam-

age from static charges. Refer to Section 1.2 in Part A for more information on anti-static procedures when handling these devices.

The following test procedures will confirm that the T837 has been tuned and adjusted correctly and is fully operational.

Note:

Refer to Figure 4.2 for the location of the main tuning and adjustment controls, and to Section 3.3 for the test equipment set-up. Refer also to Section 6 where the parts lists, grid reference index and diagrams will provide detailed information on identifying and locating components and test points on the main PCB. The parts list and diagrams for the VCO PCB are in Part E.

The following topics are covered in this section.

Unless otherwise specified, the term "PGM800Win" used in this and following sections refers to version 2.00 and later of the software.

Section Title Page

4.1 Current Consumption 4.3

4.2 Output Power 4.3

4.3 Output Frequency 4.3

4.4 External Reference Frequency (T837-2X-1021 Only) 4.3

4.5 Timers 4.4

Figure Title Page

4.1

4.2

T837 Transmit Timers

T837 Main Tuning & Adjustment Controls

4.4

4.5

Page 56

C4.2 T837 Functional Testing M830P-00

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Page 57

M830P-00 T837 Functional Testing C4.3

4.1 Current Consumption

Connect the T837 to a 13.8V power supply.

Connect an RF power meter to the T837 output socket.

Check that the current in the 13.8V power cable is less than:

T837-2X-1020 - 150mA T837-2X-1021 - 200mA.

Key the T837 by earthing the Tx-Key line (the carrier "On" LED should light).

Check that the current is less than 650mA.

4.2 Output Power

Connect an RF power meter to the T837 output socket.

Key the T837 by earthing the Tx-Key line.

Check that the output power is 800mW ±200mW.

4.3 Output Frequency

Connect the T837 output to a frequency counter via a 20dB attenuator pad.

Apply +5V DC to pin 11 of D-range 1 (PL100) - this changes the mode of operation to PLL so that the carrier frequency can be observed - and measure the output frequency.

Adjust the TCXO (X100) (if required) to trim to the nominal frequency (±100Hz).

4.4 External Reference Frequency (T837-2X-1021 Only)

Connect the external reference frequency at a level of 0dBm to +10dBm/50Ω into

the external reference input and check that green LED *D116 lights.

Note:

Ensure that the onboard synthesiser’s reference frequency has been set according to the frequency of the external reference (see Section 3.6).

Check the Lock-Detect signal level on pin 8 of D-range 1 (PL100) is as follows:

external reference frequency applied - 0V (approx.) no external reference frequency applied - 4.5V (approx.).

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C4.4 T837 Functional Testing M830P-00

4.5 Timers

Timer Function Adjustment

Transmit Tail Sets the tail time during which the

transmitter stays keyed after the exter-

0-5 seconds in 100ms steps

nal key source has been removed.

Transmit Timeout Sets the maximum continuous trans-

mission time. Once the timer has

0-300 seconds second steps

timed out, the transmitter must be keyed again, unless prevented by the transmit lockout timer.

Transmit Lockout Sets the period of time that must

elapse after a timeout before the trans-

0-60 seconds in 10

second steps mitter can re-transmit. Once the timer has timed out, the transmitter can be keyed again.

a. Adjustable in 20ms steps in PGM800Win version 2.12 and later. b. Adjustable from 0 to 600 seconds in PGM800Win version 2.12 and later.

Tx-Enable

Tx-Reg.

in 10

Tx-Reg.

Tail Time

Lockout Time

Timeout

Time

Figure 4.1 T837 Transmit Timers

01/07/00 Copyright TEL

Page 59

M830P-00 T837 Fault Finding C5.1

5 T837 Fault Finding

Caution: This equipment contains CMOS devices which are susceptible to dam-

age from static charges. Refer to Section 1.2 in Part A for more information on anti-static procedures when handling these devices.

The following test procedures and fault finding flow charts may be used to help locate a hardware problem, however they are by no means a complete fault finding procedure. If you still cannot trace the fault after progressing through them in a logical manner, contact your nearest Tait Dealer or Customer Service Organisation. If necessary, you can get additional technical help from Customer Support, Radio Systems Division, Tait Electronics Ltd, Christchurch, New Zealand (full contact details are on page 2).

Note:

The following topics are covered in this section:

Unless otherwise specified, the term "PGM800Win" used in this and following sections refers to version 2.00 and later of the software.

Section Title Page

5.1 Visual Checks 5.3

5.2 Component Checks 5.3

5.3 Front Panel LED Indicator 5.3

5.4

5.4.1

5.4.2

5.5

DC Checks

Power Rails

VCO Locking

RF Checks

5.4

5.5

5.5.1

5.6 PGM800Win Generated Errors 5.6

5.7

5.7.1

5.7.1.1

5.7.1.2

5.7.2

5.7.3

5.7.4

Output Power

Fault Finding Charts

Microcontroller

Basic Checks Serial Communications

Regulator

Synthesiser

Exciter Drive Amplifier

5.5

5.7

5.8

5.9

5.10

5.13

Page 60

C5.2 T837 Fault Finding M830P-00

Figure Title Page

5.1 RF Diode Probe Circuit 5.5

01/07/00 Copyright TEL

Page 61

M830P-00 T837 Fault Finding C5.3

5.1 Visual Checks

Remove the covers from the T837 and inspect the PCB for damaged or broken components, paying particular attention to the surface mounted devices (SMD's).

Check for defective solder joints. If repair or replacement is considered necessary, refer to Section 3 of Part A.

5.2 Component Checks

If you suspect a transistor is faulty, you can assess its performance by measuring the forward and reverse resistance of the junctions. Unless the device is completely desoldered, first make sure that the transistor is not shunted by some circuit resistance. Use a good quality EVM (e.g. Fluke 75) for taking the measurements (or a 20k ohm/V or better multimeter, using only the medium or low resistance ranges).

The collector current drawn by multi-junction transistors is a further guide to their performance.

If an IC is suspect, the most reliable check is to measure the DC operating voltages. Due to the catastrophic nature of most IC failures, the pin voltages will usually be markedly different from the recommended values in the presence of a fault. The recommended values can be obtained from either the circuit diagram or the component data catalogue.

5.3 Front Panel LED Indicator

The green "Supply" LED on the T837 front panel will flash according to the conditions described in the following table:

Flash Rate Condition

fast (D sec. on/D sec. off

approx.)

unequal (D sec. on/1 sec. off

approx.)

T837 is linked with PGM800Win

microcontroller has detected an

internal communications error -

refer to Section 5.7.1

Where two or more conditions occur at the same time, the precedence is in the order shown above (i.e. T837 linked has the highest priority, followed by internal error).

Page 62

C5.4 T837 Fault Finding M830P-00

5.4 DC Checks

5.4.1 Power Rails

Refer to the top side PCB layout diagram in Section 6 or Figure 4.2 for test point locations, and to the regulator fault finding chart (Section 5.7.2) for fault diagnosis.

Check the 13.8V (TP601) and 9V (TP602) supplies at their test points in the regulator compartment with a DMM.

Check the 5V (TP604) and 20V (TP603) rails at their respective test points in the regulator compartment.

Check that Tx-Reg. (TP310 in the paging modulator compartment) comes up to

8.8V when the exciter is keyed.

Check the +5V digital regulator output (TP607 in the regulator compartment).

Check for short circuits.

5.4.2 VCO Locking

Key the exciter.

Using a DMM, monitor the VCO control voltage at PL4-1 or the junction of L1 and R1 on the VCO PCB.

If the synthesiser is locked and the VCO aligned, the voltage at this point should be between 5 and 13V.

If the VCO is not locked, refer to the synthesiser fault finding chart (Section 5.7.3).

01/07/00 Copyright TEL

Page 63

M830P-00 T837 Fault Finding C5.5

5.5 RF Checks

In-circuit RF levels may be measured with an RF probe on which the earth lead has been shortened to a minimum (i.e. 13mm). Refer to the circuit diagrams for typical levels.

Figure 5.1 shows a suitable RF probe circuit.

Probe

Earthing Clip

This unit is not suitable for use on high power RF circuits.

10k

1N6263

Figure 5.1 RF Diode Probe Circuit

100k

Coax

5.5.1 Output Power

Refer to the exciter drive amplifier fault finding chart (Section 5.7.4).

Ensure that the VCO locks (refer to Section 5.4.2).

Connect the exciter output to a power meter and key the exciter.

Check that the output power is between 600 and 1000mW.

DC to DVM or Oscilloscope

Note:

If the synthesiser is out of lock, the lock detector (synthesiser IC740 and comparator IC750) will prevent the RF signal from reaching the PA by switching the supply to the exciter amplifier (Q340, Q345).

Page 64

C5.6 T837 Fault Finding M830P-00

5.6 PGM800Win Generated Errors

The following errors are those most likely to occur using PGM800Win. Refer to the PGM800Win software user’s manual for a complete list of error messages.

Channel Switch Set

The programmed default channel change was not accepted by the base station because a channel is selected externally. Try turning the external channel switch off to change the default channel in PGM800Win.

Synth Out Of Lock

The synthesiser received incorrect data, or the data was corrupted. Enter a frequency within the VCO switching range, or tune the VCO.

Internal Error

Data could not be read from the base station due to an internal error. Check for shorts or open circuits on the SDA, SCK, SYNTH and EPOT lines. The SDA, SCK and SYNTH are normally high.

Write/Read To An Unlinked Module

The link to the module does not exist. Undefined error.

01/07/00 Copyright TEL

Page 65

M830P-00 T837 Fault Finding C5.7

5.7 Fault Finding Charts

Note:

The standard test point designations used in this section are as follows:

TP601 13.8V TP602 9V TP603 20V TP604 5V

5.7.1 Microcontroller (IC810)

5.7.1.1 Basic Checks

Is the 12.8MHz clock

present on IC810 pin 21

(microcontroller)?

N Pulsing

Replace

IC810.

Is pin 30

pulsing?

Check the

state of

pin 10.

Low

High or open circuit

Check IC740

(synthesiser).

Use a DSO* to check

operation of IC650

(i.e. active high

pulse at power up).

*digital storage oscilloscope

Replace

IC650.

Check state of

pins 36 to 43.

Static high/low

Replace IC810.

Pulsing

Check state

of pin 35.

Correct the fault causing pin 35 to be low/floating.

High

Low/floating

Replace

IC810.

Page 66

C5.8 T837 Fault Finding M830P-00

5.7.1.2 Serial Communication

Disconnect the

programming lead.

Is IC810 pin 11 high?

(microcontroller)

Connect the programming

lead and use PGM800Win

to read the rack/radio.

Check I/O pad P810

with a DSO*.

Does it swing from

0 to 5V?

Y*digital storage

oscilloscope

Use PGM800Win

to send a POLL command to the

radio.

Check pin state.

Noise on pin

Check the SERIAL-COM

and AUDIO-1/2 links.

Check the transistor

interface circuitry

and/or replace the

programming lead.

Low/floating

Check the transistor

interface circuitry.

Check IC810 pin 13

with a DSO. Is there

a response from IC810 after

a poll command is sent?

Check the transistor

interface circuitry

and/or replace the

programming lead.

Replace

IC810.

01/07/00 Copyright TEL

Page 67

M830P-00 T837 Fault Finding C5.9

5.7.2 Regulator

Check for

overheating

components &

short circuits.

13.8V present on IC630 pin 3?

5.3V present on IC630 pin 1?

9.0V present

on TP602?

20V present

on TP603?

+5V present on

IC610 pin 2?

Key Tx.

Check continuity

from pin 9 of

D-range 1.

Replace IC630.

Check Q630,

Q620 & IC640.

Check Q660 is

switching at

approx. 150kHz.

Check R615.

Replace IC610.

8.8V present

on Tx reg. TP305?

0V present

on Q860 collector?

0.6V present on

Q860 base?

Regulators OK.

Check microcontroller

section.

Regulators OK.

Replace Q610.

Check Q860 and

associated circuitry.

Page 68

C5.10 T837 Fault Finding M830P-00

5.7.3 Synthesiser

Refer to the synthesiser circuit diagram (sheet 7) in Section 6 and the VCO circuit diagram in Part E.

A B

No VCO RF output.

9V present at VCO Q4/Q5?

DC V present

at Q4 & Q5?

8.3V present at VCO?

DC V present at

VCO, Q1, Q2 & Q3?

Capacitors OK?

Check for cracks,

shorts, etc.

VCO out of lock.

Check Tx reg.,

Q610 & 9V reg.

Check biasing

resistors, Q4 & Q5.

Check Q5 C

multiplier

(synth).

Check biasing

resistors, Q1,

Q2 & Q3.

Replace

if faulty.

+5V present at

IC710 & IC740?

20V present

on IC750 pin 8?

9V present on

Q795 divider buffer?

DC V present

on Q795 emitter?

Does VCO trimmer

adjust for stable

control line

between 5 & 13V?

Check 5V reg. &

supply resistor

to each IC.

20V inverter

supply faulty.

Check 9V supply.

Check biasing

resistors & Q795.

Replace VCO.

Check VCO tuning

caps & trimmer.

Check #C5, #C3, #C4,

CV1 & D1-D4 in VCO.

VCO trimmer

freq. range OK?

Is 8MHz VCO range

achieved between

5 & 13V?

VCO OK.

Continued on the next page

VCO freq. correct?

Does VCO trimmer

adjust for required

frequency range

between 5 & 13V?

Synthesiser OK.

Recheck

programming

via PGM800Win.

01/07/00 Copyright TEL

Page 69

M830P-00 T837 Fault Finding C5.11

Continued from previous page

Check microcontroller

section (IC810).

Replace synthesiser

(IC740).

Check phase detector output

pins (IC740 pins 3 & 4).

Are there very narrow pulses

(~50ns) at the reference frequency?

(i.e. 5kHz : 200µs period

6.25kHz : 160µs period) *See Note below.

Is the charge pump bias

voltage at the base of

Q760 & Q780 between

3.5 and 5V? (5V when locked) Y

Is the voltage on C762,

R760, and R758 9V ±0.2V?

Is the charge pump voltage

on Q790 gate between

3 and 8.5V? (6.5V ±0.2V locked)

Is the loop filter reference

voltage at C772 (+) 6.5V ±0.2V?

Check programming.

N Y

Check serial bus

when programming

i.e. clock/data/enable

activity (IC740 pins

18, 19 & 17).

Check Q760, Q780,

R766 & C765.

Check R762 & C762.

Check charge pump components

(Q775 & Q780) and Q790.

Check C772, R774, R772,

C770, R763 & Q790.

Programming and

serial bus OK?

Check IC710, R710,

C712, C713, C733.

Check line from modulator section to synthesiser section.

Is reference

clock present

at IC740 pin 20

(12.8MHz >4.5Vpp)?

Is reference

clock present at IC710 pins 5 & 13 (12.8MHz >4.5Vpp)?

Is reference

clock present

at IC102 pin 6

in modulator section

(12.8MHz >4.0Vpp)?

Check VCXO (X101)

and buffers (IC102).

Check loop filter components

R775, C774, C776, R510, C505, IC750. Is the supply

to IC750 +20V +4, -2V?

Check the signal path from

the VCO to synthesiser.

Measure the frequency from

the VCO at IC740 pin 11 using

a frequency counter.

Signal

Is the level >-10dBm?

Does the frequency adjust

as the VCO trimmer is

adjusted (out of lock)?

Replace synthesiser

(IC740).

No signal

Check regulator circuitry.

Check VCO.

Check divider buffer

circuit (Q795) and bias

voltages on Q795 emitter

(1.3V ±0.2V).

*Note:

When locked, both of these are very narrow (~50ns). If unlocked, one will be very narrow (~50ns), and the other wide (>15µs).

Page 70

C5.12 T837 Fault Finding M830P-00

Noisy synth;

poor residual FM.

VCO phase locked?

5-13V present on

control line?

Correct DC V

present on Q1 VCO?

Loop filter &

components around

op. amp. (IC750) OK?

Isolate modulation

on VCO; still noisy?

Change trimmer;

still noisy?

Change Q1;

still noisy?

Go to B.

Check inductors,

biasing resistors

& Q1.

Replace if faulty.

Trace modulator fault.

Change TCXO;

still noisy?

Change varactors;

still noisy?

Replace VCO

assembly.

Synthesiser OK.

01/07/00 Copyright TEL

Page 71

M830P-00 T837 Fault Finding C5.13

5.7.4 Exciter Drive Amplifier

Key exciter &

lock synthesiser.

3.5V at Q365 collector?

10.5V at Q370 collector? YN

>2.2V RF at

R359/R342?

>1.1V RF at

R342/R344?

>0.5V RF at Q365 base?

10.5V at Q315 collector?

>5V present on

IC330 pin 1?

Check Q310

& Q315.

Check VCO.

Check attenuator pad

R359, R342, R344.

Check C352, C355, C358,

Q365, L345, L346, D340,

D350, & D360.

Check

power rails.

Check IC330,

R324 & R326.

>6V RF at

C361, L360?

>1.5V RF at Q370 base?

>6V RF at

Q370 collector?

Drive amp. OK.

Check Q365.

Check signal path

between Q365 & Q370.

Check Q370.

Page 72

C5.14 T837 Fault Finding M830P-00

01/07/00 Copyright TEL

Page 73

M830P-00 T837 PCB Information C6.1.1

6 T837 PCB Information

Caution: This equipment contains CMOS devices which are susceptible to damage from

static charges. Refer to Section 1.2 in Part A for more information on anti-static procedures when handling these devices.

This section provides the following information on the T837 paging exciter:

•parts lists

• grid reference index

•PCB layouts

• circuit diagrams.

Section Title IPN Page

6.1 Introduction 6.1.3

6.2 T837 Paging Exciter PCB 220-01585-01 6.2.1

Page 74

C6.1.2 T837 PCB Information M830P-00

01/07/00 Copyright TEL

Page 75

M830P-00 T837 PCB Information C6.1.3

6.1 Introduction

Product Type Identification

You can identify the exciter type by checking the product code printed on a label on the rear of the chassis (product codes are explained in Section 1.3 in this Part of the manual, and Figure 1.1 in Part A shows typical labels). You can further verify the product type by checking the placement of an SMD resistor in the table that is screen printed onto the top side of the PCB, similar to the example drawn below. In this example, the resistor indicates that the product was built as a T837-20-XXXX.

837- PRODUCT TYPE 837- 837-10 837-20 837- 837-13 837-23

PRODUCT TYPE 837-15 837-25

Note:

The only function of this resistor is to indicate the product type. It has no effect on the circuitry or operation of the exciter.

PCB Identification

All PCBs are identified by a unique 10 digit “internal part number” (IPN), e.g. 220-12345-00, which is screen printed onto the PCB (usually on the top side), as shown in the example below:

The last 2 digits of this number define the issue status, which starts at 00 and increments through 01, 02, 03, etc. as the PCB is updated. Some issue PCBs never reach full production status and are therefore not included in this manual. A letter following the 10 digit IPN has no relevance in identifying the PCB for service purposes.

Note:

It is important that you identify which issue PCB you are working on so that you can refer to the appropriate set of PCB information.

Page 76

C6.1.4 T837 PCB Information M830P-00

Parts Lists

The 10 digit numbers (000-00000-00) in this Parts List are “internal part numbers” (IPNs). We can process your spare parts orders more efficiently and accurately if you quote the IPN and provide a brief description of the part.

The components listed in this parts list are divided into two main types: those with a circuit reference (e.g. C2, D1, R121, etc.) and those without (miscellaneous and mechanical).

Those with a circuit reference are grouped in alphabetical order and then in numerical order within each group. Each component entry comprises three or four columns, as shown below:

circuit reference lists components in alphanumeric order

variant column indicates that this is a variant component which is fitted only to the product type listed

description gives a brief description of the component

Internal Part Number order the component

this number

The mechanical and miscellaneous section lists the variant and common parts in IPN order.

Parts List Amendments

At the front of the parts list is the Parts List Amendments box (an example of which is shown below). This box contains a list of component changes which took place after the parts list and diagrams in this section were compiled. These changes (e.g. value changes, added/deleted components, etc.) are listed by circuit reference in alphanumeric order and supersede the information given in the parts list or diagrams. Components without circuit references are listed in IPN order. The number in brackets at the end of each entry refers to the Tait internal Change Order document.

IPN of new component

Parts List Amendments

R306 Changed from 180Ω to 560Ω (036-13560-00) to increase sensitivity (71003).

Change Order

number

circuit reference

or IPN

01/07/00 Copyright TEL

description

of change

Page 77

M830P-00 T837 PCB Information C6.1.5

Variant Components

A variant component is one that has the same circuit reference but different value or specification in different product types. Where two products share the same PCB, the term “variant” is also used to describe components unplaced in one product. Variant components have a character prefix, such as “&”, “=” or “#”, before the circuit reference (e.g. &R100).

The table below explains the variant prefixes used in T800 Series II products:

If the variant prefix is. . . the component will. . .

& change according to channel spacing

= change according to frequency stability

# change according to frequency range

% change or be placed/unplaced for special applications

be unplaced in one product (where two products share the same PCB)

Grid Reference Index

This section contains a component grid reference index to help you find components and labelled pads on the PCB layouts and circuit diagrams. This index lists the components and pads in alphanumeric order, along with the appropriate alphanumeric grid references, as shown below:

PCB layout components listed in alphanumeric order

reference

circuit diagram

reference

component location on the sheet

sheet number

component location on the layer

layer number 1 = top side layer 2 = bottom side layer

Page 78

C6.1.6 T837 PCB Information M830P-00

t s

Using CAD Circuit Diagrams

Reading a CAD circuit diagram is similar to reading a road map, in that both have an alphanumeric border. The circuit diagrams in this manual use letters to represent the horizontal axis, and numbers for the vertical axis. These circuit diagram “grid references” are useful in following a circuit that is spread over two or more sheets.

When a line representing part of the circuitry is discontinued, a reference will be given at the end of the line to indicate where the rest of the circuitry is located, as shown below. The first digit refers to the sheet number and the last two characters refer to the location on that sheet of the continuation of the circuit (e.g. 1R3).

hese grid references

how where the circuit

is continued

DISCRIMINATOR

1R3 2R9 2R9 8A2

IF-SIG

4R4

%R338

100

C301

4N7

C369 100P

L310 33U

C371

10U

R339 100K

R303

01/07/00 Copyright TEL

Page 79

M830P-00 T837 PCB Information C6.2.1

6.2 T837 Paging Exciter PCB

This section contains the following information.

IPN Section Page

220-011585-01

Parts List

Mechanical & Miscellaneous Parts

Grid Reference Index

PCB Layout - Top Side

PCB Layout - Bottom Side

Exciter Overview Diagram

Low Speed Paging Modulator Circuit Diagram

Exciter Circuit Diagram

VCO Section Circuit Diagram

Regulators Circuit Diagram

Synthesiser Circuit Diagram

Microcontroller Circuit Diagram

Harmonic Filter Circuit Diagram

6.2.5

6.2.9

6.2.10

6.2.13

6.2.14

6.2.15

6.2.16

6.2.17

6.2.19

6.2.20

6.2.21

6.2.22

6.2.23

Page 80

C6.2.2 T837 PCB Information M830P-00

01/07/00 Copyright TEL

Page 81

IPN 220-01585-01

M830P-00 T837 PCB Information

C6.2.3

T837 Parts List (IPN 220-01585-01)

How To Use This Parts List

The components listed in this parts list are divided into two main types: those with a circuit reference (e.g. C2, D1, R121, etc.) and those without (miscellaneous and mechanical).

Those with a circuit reference are grouped in alphabetical order and then in numerical order within each group. Each component entry comprises three or four columns: the circuit reference, variant (if applicable), IPN and description. A number in the variant column indicates that this is a variant component which is fitted only to the product type listed. Static sensitive devices are indicated by an (S) at the start of the description column.

The miscellaneous and mechanical section lists the variant and common par ts in IPN order. Where possible, a number in the legend column indicates their position in the mechanical assembly drawing.

The Parts List Amendments box below lists component changes that took place af ter the parts list and diagrams in this section were compiled. These changes (e.g. value changes, added/deleted components, etc.) are listed by circuit reference in alphanumeric order and supersede the information given in the parts list or diagrams. Components without circuit references are listed in IPN order.

Parts List Amendments

There were no amendments to the parts list at the time of publication.

Page 82

IPN 220-01585-01

C6.2.4

Parts List Amendments - Continued

This page is provided for entering future amendments to the parts list.

T837 PCB Information M830P-00

01/07/00 Copyright TEL

Page 83

IPN 220-01585-01

M830P-00 T837 PCB Information

Ref Var IPN Description Ref Var IPN Description

*C147 20-1021 015-06100-08 CAP CER 1206 100N 10% X7R 50V *C147 26-1021 015-06100-08 CAP CER 1206 100N 10% X7R 50V

Note:

The T837-2X-1020 and T837-2X-1021 share the same basic design and are built on the same PCB. However, there are a number of special variant components in these products.

The “*” variant prefix is used to indicate those components which are placed only in the T837-2X-1021.

The “%” prefix indicates components which are placed in all product types, but may have different values in each product type.

The “*%” prefixes indicate components which are optional in the T837-2X-1021 only, and not placed at all in the T837-2X-1020.

C100 014-08100-00 CAP TANT CHIP 10M 16VW +-20% C101 014-08100-00 CAP TANT CHIP 10M 16VW +-20% C102 015-24100-08 CAP CER 0805 1N 10% X7R 50V C103 015-24100-08 CAP CER 0805 1N 10% X7R 50V C104 015-24100-08 CAP CER 0805 1N 10% X7R 50V C105 015-24100-08 CAP CER 0805 1N 10% X7R 50V C106 015-24100-08 CAP CER 0805 1N 10% X7R 50V *C107 20-1021 015-25470-08 CAP CER 0805 47N 10% X7R 50V *C107 26-1021 015-25470-08 CAP CER 0805 47N 10% X7R 50V C108 015-21820-02 CAP 0805 8P2 0.1 NPO 50V C109 015-22470-01 CAP CER 0805 47P 5% NPO 50V *C110 20-1021 015-25100-08 CAP CER 0805 10N 10% X7R 50V *C110 26-1021 015-25100-08 CAP CER 0805 10N 10% X7R 50V *C111 20-1021 015-24100-08 CAP CER 0805 1N 10% X7R 50V *C111 26-1021 015-24100-08 CAP CER 0805 1N 10% X7R 50V C112 015-24100-08 CAP CER 0805 1N 10% X7R 50V %C113 20-1020 015-25100-08 CAP CER 0805 10N 10% X7R 50V %C113 20-1021 015-25100-08 CAP CER 0805 10N 10% X7R 50V %C113 26-1020 015-24680-08 CAP CER 0805 6N8 10% X7R 50V %C113 26-1021 015-24680-08 CAP CER 0805 6N8 10% X7R 50V C115 015-21820-02 CAP 0805 8P2 0.1 NPO 50V *C122 20-1021 015-25100-08 CAP CER 0805 10N 10% X7R 50V *C122 26-1021 015-25100-08 CAP CER 0805 10N 10% X7R 50V C123 015-24100-08 CAP CER 0805 1N 10% X7R 50V *C124 20-1021 015-24100-08 CAP CER 0805 1N 10% X7R 50V *C124 26-1021 015-24100-08 CAP CER 0805 1N 10% X7R 50V %C125 20-1020 015-24220-08 CAP CER 0805 2N2 10% X7R 50V %C125 20-1021 015-24220-08 CAP CER 0805 2N2 10% X7R 50V *C126 20-1021 015-24100-08 CAP CER 0805 1N 10% X7R 50V *C126 26-1021 015-24100-08 CAP CER 0805 1N 10% X7R 50V *C127 20-1021 015-25100-08 CAP CER 0805 10N 10% X7R 50V *C127 26-1021 015-25100-08 CAP CER 0805 10N 10% X7R 50V %C128 20-1020 015-24100-08 CAP CER 0805 1N 10% X7R 50V %C128 20-1021 015-24100-08 CAP CER 0805 1N 10% X7R 50V %C128 26-1020 015-24100-08 CAP CER 0805 1N 10% X7R 50V %C128 26-1021 015-24100-08 CAP CER 0805 1N 10% X7R 50V %C129 20-1020 015-25220-08 CAP CER 0805 22N 10% X7R 50V %C129 20-1021 015-25220-08 CAP CER 0805 22N 10% X7R 50V %C129 26-1020 015-24220-08 CAP CER 0805 2N2 10% X7R 50V %C129 26-1021 015-24220-08 CAP CER 0805 2N2 10% X7R 50V *C130 20-1021 014-08100-00 CAP TANT CHIP 10M 16VW +-20% *C130 26-1021 014-08100-00 CAP TANT CHIP 10M 16VW +-20% *C131 20-1021 015-25100-08 CAP CER 0805 10N 10% X7R 50V *C131 26-1021 015-25100-08 CAP CER 0805 10N 10% X7R 50V *C132 20-1021 014-07470-01 CAP 4U7 ’B’CASE 25V +-10% 267 *C132 26-1021 014-07470-01 CAP 4U7 ’B’CASE 25V +-10% 267 *C133 20-1021 015-24470-08 CAP CER 0805 4N7 10% X7R 50V *C133 26-1021 015-24470-08 CAP CER 0805 4N7 10% X7R 50V *C134 20-1021 013-06100-10 CAP SMD PPS 100N 100V 10% *C134 26-1021 013-06100-10 CAP SMD PPS 100N 100V 10% *C135 20-1021 015-24470-08 CAP CER 0805 4N7 10% X7R 50V *C135 26-1021 015-24470-08 CAP CER 0805 4N7 10% X7R 50V *%C136 20-1021 015-24100-08 CAP CER 0805 1N 10% X7R 50V *%C136 26-1020 015-24100-08 CAP CER 0805 1N 10% X7R 50V *%C136 26-1021 015-24100-08 CAP CER 0805 1N 10% X7R 50V %C137 20-1020 036-10000-00 RES M/F 0805 ZERO OHM %C137 20-1021 015-24680-08 CAP CER 0805 6N8 10% X7R 50V %C137 26-1020 015-24680-08 CAP CER 0805 6N8 10% X7R 50V %C137 26-1021 015-24680-08 CAP CER 0805 6N8 10% X7R 50V C138 015-24330-08 CAP CER 0805 3N3 10% X7R 50V C139 015-24330-08 CAP CER 0805 3N3 10% X7R 50V *C140 20-1021 015-25100-08 CAP CER 0805 10N 10% X7R 50V *C140 26-1021 015-25100-08 CAP CER 0805 10N 10% X7R 50V C141 015-24220-08 CAP CER 0805 2N2 10% X7R 50V C142 015-24220-08 CAP CER 0805 2N2 10% X7R 50V *C143 20-1021 015-25100-08 CAP CER 0805 10N 10% X7R 50V *C143 26-1021 015-25100-08 CAP CER 0805 10N 10% X7R 50V C144 015-23100-01 CAP CER 0805 100P 5% NPO 50V *C145 20-1021 014-07470-01 CAP 4U7 ’B’CASE 25V +-10% 267 *C145 26-1021 014-07470-01 CAP 4U7 ’B’CASE 25V +-10% 267 *C146 20-1021 014-08100-00 CAP TANT CHIP 10M 16VW +-20% *C146 26-1021 014-08100-00 CAP TANT CHIP 10M 16VW +-20%

C148 014-08100-00 CAP TANT CHIP 10M 16VW +-20% C149 015-25100-08 CAP CER 0805 10N 10% X7R 50V C150 014-08100-00 CAP TANT CHIP 10M 16VW +-20% C151 015-25100-08 CAP CER 0805 10N 10% X7R 50V C152 013-06470-00 CAP SMD POLYESTER 470N 63V 10% C153 013-06470-00 CAP SMD POLYESTER 470N 63V 10% C154 015-25100-08 CAP CER 0805 10N 10% X7R 50V C155 015-06100-08 CAP CER 1206 100N 10% X7R 50V C156 015-25100-08 CAP CER 0805 10N 10% X7R 50V *C157 20-1021 015-25100-08 CAP CER 0805 10N 10% X7R 50V *C157 26-1021 015-25100-08 CAP CER 0805 10N 10% X7R 50V C158 015-25100-08 CAP CER 0805 10N 10% X7R 50V C159 014-08100-00 CAP TANT CHIP 10M 16VW +-20% C160 015-25100-08 CAP CER 0805 10N 10% X7R 50V C161 014-08100-00 CAP TANT CHIP 10M 16VW +-20% C162 015-25100-08 CAP CER 0805 10N 10% X7R 50V C163 015-23100-01 CAP CER 0805 100P 5% NPO 50V C164 014-08100-00 CAP TANT CHIP 10M 16VW +-20% *C165 20-1021 015-25100-08 CAP CER 0805 10N 10% X7R 50V *C165 26-1021 015-25100-08 CAP CER 0805 10N 10% X7R 50V C166 015-25100-08 CAP CER 0805 10N 10% X7R 50V C167 014-08100-00 CAP TANT CHIP 10M 16VW +-20% C168 014-08100-00 CAP TANT CHIP 10M 16VW +-20% *C169 20-1021 014-08100-00 CAP TANT CHIP 10M 16VW +-20% *C169 26-1021 014-08100-00 CAP TANT CHIP 10M 16VW +-20% C170 014-08100-00 CAP TANT CHIP 10M 16VW +-20% *C171 20-1021 014-08100-00 CAP TANT CHIP 10M 16VW +-20% *C171 26-1020 014-08100-00 CAP TANT CHIP 10M 16VW +-20% *C171 26-1021 014-08100-00 CAP TANT CHIP 10M 16VW +-20% C172 015-06100-08 CAP CER 1206 100N 10% X7R 50V *C173 20-1021 015-06100-08 CAP CER 1206 100N 10% X7R 50V *C173 26-1020 015-06100-08 CAP CER 1206 100N 10% X7R 50V *C173 26-1021 015-06100-08 CAP CER 1206 100N 10% X7R 50V C301 015-24470-08 CAP CER 0805 4N7 10% X7R 50V C304 015-24100-08 CAP CER 0805 1N 10% X7R 50V C307 015-25100-08 CAP CER 0805 10N 10% X7R 50V C309 015-23680-08 CAP CER 0805 680P 10% X7R 50V C310 015-24100-08 CAP CER 0805 1N 10% X7R 50V C313 015-24100-08 CAP CER 0805 1N 10% X7R 50V C317 015-23100-01 CAP CER 0805 100P 5% NPO 50V C318 015-23100-01 CAP CER 0805 100P 5% NPO 50V C319 015-24100-08 CAP CER 0805 1N 10% X7R 50V C325 015-24100-08 CAP CER 0805 1N 10% X7R 50V C328 015-25470-08 CAP CER 0805 47N 10% X7R 50V C330A 015-25100-08 CAP CER 0805 10N 10% X7R 50V C330B 014-08100-03 CAP TANT SMD 10U 35V 20% C331 015-24100-08 CAP CER 0805 1N 10% X7R 50V C334 014-07470-04 CAP TANT SMD 4U7 50V 20% C337 015-24100-08 CAP CER 0805 1N 10% X7R 50V C340 015-24100-08 CAP CER 0805 1N 10% X7R 50V C343 015-24100-08 CAP CER 0805 1N 10% X7R 50V C346 015-24100-08 CAP CER 0805 1N 10% X7R 50V C349 015-23150-01 CAP CER 0805 150P 5% NPO 50V C352 015-24100-08 CAP CER 0805 1N 10% X7R 50V C355 015-22330-01 CAP CER 0805 33P 5% NPO 50V C358 015-22820-01 CAP CER 0805 82P 5% NPO 50V C361 015-24100-08 CAP CER 0805 1N 10% X7R 50V C376 015-04100-04 CAP CER 1206 1N 10% X7R 50V C379 015-04100-04 CAP CER 1206 1N 10% X7R 50V C382 015-24100-08 CAP CER 0805 1N 10% X7R 50V C383 015-24100-08 CAP CER 0805 1N 10% X7R 50V C384 015-22470-01 CAP CER 0805 47P 5% NPO 50V C385 015-24100-08 CAP CER 0805 1N 10% X7R 50V C388 015-24100-08 CAP CER 0805 1N 10% X7R 50V C390 015-25100-08 CAP CER 0805 10N 10% X7R 50V C391 015-21820-02 CAP 0805 8P2 0.1 NPO 50V C392 015-25220-08 CAP CER 0805 22N 10% X7R 50V C393 015-06100-08 CAP CER 1206 100N 10% X7R 50V C394 015-24100-08 CAP CER 0805 1N 10% X7R 50V C395 015-24100-08 CAP CER 0805 1N 10% X7R 50V C397 015-24100-08 CAP CER 0805 1N 10% X7R 50V C398 015-24100-08 CAP CER 0805 1N 10% X7R 50V C503 015-24470-08 CAP CER 0805 4N7 10% X7R 50V C505 015-06100-08 CAP CER 1206 100N 10% X7R 50V C510 015-25220-08 CAP CER 0805 22N 10% X7R 50V C513 015-25100-08 CAP CER 0805 10N 10% X7R 50V C535 015-06100-08 CAP CER 1206 100N 10% X7R 50V C550 014-08220-01 CAP TANT 22UF 10V 276MSER C605 015-23120-01 CAP CER 0805 120P 5% NPO 50V C610A 015-25100-08 CAP CER 0805 10N 10% X7R 50V C610B 014-09100-00 CAP TANT SMD 100U 16V 20% C611A 014-09100-00 CAP TANT SMD 100U 16V 20% C611B 015-25100-08 CAP CER 0805 10N 10% X7R 50V C623 015-23120-01 CAP CER 0805 120P 5% NPO 50V C625 020-09470-07 CAP ELEC RADL 470M 16V 20% 3.5 C626 015-24470-08 CAP CER 0805 4N7 10% X7R 50V C628 015-24100-08 CAP CER 0805 1N 10% X7R 50V C630 015-06100-08 CAP CER 1206 100N 10% X7R 50V C631 015-06100-08 CAP CER 1206 100N 10% X7R 50V C634 014-08100-00 CAP TANT CHIP 10M 16VW +-20% C636 015-06100-08 CAP CER 1206 100N 10% X7R 50V C638 015-23120-01 CAP CER 0805 120P 5% NPO 50V C640 015-24100-08 CAP CER 0805 1N 10% X7R 50V C660 015-06100-08 CAP CER 1206 100N 10% X7R 50V C665 014-08100-03 CAP TANT SMD 10U 35V 20% C670 014-07330-10 CAP TANT SMD 3U3 35V 10%

C6.2.5

Page 84

IPN 220-01585-01

C6.2.6

Ref Var IPN Description Ref Var IPN Description

C673 015-24470-08 CAP CER 0805 4N7 10% X7R 50V C677 014-07100-02 CAP TANT CHIP 1U0 3.2X1.6M 16V C681 015-06100-08 CAP CER 1206 100N 10% X7R 50V C684 014-08100-00 CAP TANT CHIP 10M 16VW +-20% C687 015-23120-01 CAP CER 0805 120P 5% NPO 50V C690 015-06100-08 CAP CER 1206 100N 10% X7R 50V C693 014-08100-00 CAP TANT CHIP 10M 16VW +-20% C706 015-22470-01 CAP CER 0805 47P 5% NPO 50V C708 014-07470-01 CAP 4U7 ’B’CASE 25V +-10% 267 C709 015-06100-08 CAP CER 1206 100N 10% X7R 50V C710 015-25100-08 CAP CER 0805 10N 10% X7R 50V C712 015-22470-01 CAP CER 0805 47P 5% NPO 50V C713 015-25100-08 CAP CER 0805 10N 10% X7R 50V C714 014-07470-01 CAP 4U7 ’B’CASE 25V +-10% 267 C733 015-21470-01 CAP CER 0805 4P7+-0.25 NPO 50V C735 015-22470-01 CAP CER 0805 47P 5% NPO 50V C736 015-22470-01 CAP CER 0805 47P 5% NPO 50V C740A 015-24100-08 CAP CER 0805 1N 10% X7R 50V C740B 015-25100-08 CAP CER 0805 10N 10% X7R 50V C741A 014-07470-01 CAP 4U7 ’B’CASE 25V +-10% 267 C741B 015-25100-08 CAP CER 0805 10N 10% X7R 50V C742A 015-06100-08 CAP CER 1206 100N 10% X7R 50V C742B 015-25100-08 CAP CER 0805 10N 10% X7R 50V C743 015-22470-01 CAP CER 0805 47P 5% NPO 50V C745 015-24100-08 CAP CER 0805 1N 10% X7R 50V C750 014-08100-03 CAP TANT SMD 10U 35V 20% C757 015-06100-08 CAP CER 1206 100N 10% X7R 50V C759 015-06100-08 CAP CER 1206 100N 10% X7R 50V C761 015-25100-08 CAP CER 0805 10N 10% X7R 50V C762 014-08220-01 CAP TANT 22UF 10V 276MSER C764 015-25100-08 CAP CER 0805 10N 10% X7R 50V C765 014-07470-01 CAP 4U7 ’B’CASE 25V +-10% 267 C767 015-24100-08 CAP CER 0805 1N 10% X7R 50V C769 015-24100-08 CAP CER 0805 1N 10% X7R 50V C770 014-08220-01 CAP TANT 22UF 10V 276MSER C772 014-08220-01 CAP TANT 22UF 10V 276MSER C774 013-06330-11 CAP SMD PPS 330N 63V 5% C776 015-25150-08 CAP CER 0805 15N 10% X7R 50V C782 015-24100-08 CAP CER 0805 1N 10% X7R 50V C784 015-24100-08 CAP CER 0805 1N 10% X7R 50V C786 015-06100-08 CAP CER 1206 100N 10% X7R 50V C788 015-24100-08 CAP CER 0805 1N 10% X7R 50V C790 015-24100-08 CAP CER 0805 1N 10% X7R 50V C792 015-24100-08 CAP CER 0805 1N 10% X7R 50V C810 015-25470-08 CAP CER 0805 47N 10% X7R 50V C812 015-23100-01 CAP CER 0805 100P 5% NPO 50V C813 015-24100-08 CAP CER 0805 1N 10% X7R 50V C910 015-02120-06 CAP CER 1210 12P NPO500VGRM42 C920 015-02270-06 CAP CER 1210 27P NPO 500V C930 015-02120-06 CAP CER 1210 12P NPO500VGRM42

%D1 20-1020 001-10015-50 DIODE SMD ZENER 1.5SMC22AT3 %D1 20-1021 001-10015-50 DIODE SMD ZENER 1.5SMC22AT3 %D1 26-1020 001-10015-50 DIODE SMD ZENER 1.5SMC22AT3 %D1 26-1021 001-10015-50 DIODE SMD ZENER 1.5SMC22AT3 *D100 20-1021 001-10000-70 S) DIODE SMD BAV70 D-SW SOT23 *D100 26-1021 001-10000-70 S) DIODE SMD BAV70 D-SW SOT23 D105 001-10000-70 S) DIODE SMD BAV70 D-SW SOT23 *D116 20-1021 008-10067-03 S) LED SMD GRN LGT670-HK *D116 26-1021 008-10067-03 S) LED SMD GRN LGT670-HK D119 008-00014-80 S)LED 3MM GREEN WITH WIRE D120 001-10000-70 S) DIODE SMD BAV70 D-SW SOT23 D125 008-00014-79 S)LED 3MM RED WITH WIRE D130 001-10000-70 S) DIODE SMD BAV70 D-SW SOT23 D135 001-10000-70 S) DIODE SMD BAV70 D-SW SOT23 D140 001-10000-70 S) DIODE SMD BAV70 D-SW SOT23 D160 001-10000-70 S) DIODE SMD BAV70 D-SW SOT23 *D200 20-1021 001-10000-70 S) DIODE SMD BAV70 D-SW SOT23 *D200 26-1021 001-10000-70 S) DIODE SMD BAV70 D-SW SOT23 *D220 20-1021 001-10000-99 S) DIODE SMD BAV99 D-SW SOT23 *D220 26-1021 001-10000-99 S) DIODE SMD BAV99 D-SW SOT23 D340 001-10000-18 S) DIODE SMD BAT18 S-SW SOT23 D350 001-10000-18 S) DIODE SMD BAT18 S-SW SOT23 D360 001-10000-18 S) DIODE SMD BAT18 S-SW SOT23 D370 001-10010-40 DIODE SMD ZENER 33V BZG03-C33 D610 001-10000-99 S) DIODE SMD BAV99 D-SW SOT23 D640 001-10000-70 S) DIODE SMD BAV70 D-SW SOT23 D645 001-10010-40 DIODE SMD ZENER 33V BZG03-C33 D730 001-10165-00 DIODE BAT165 SCHOTTKY SOD-323 D740 001-10165-00 DIODE BAT165 SCHOTTKY SOD-323

IC100 002-74910-04 S) IC SMD 74HCU04 6X INV IC102 002-74910-04 S) IC SMD 74HCU04 6X INV IC105 002-74901-09 S) IC SMD 74HC109 DUAL JK F/F IC110 002-74901-09 S) IC SMD 74HC109 DUAL JK F/F IC115 002-74900-86 S) IC SMD 74HC86 EX OR SO14 IC120 002-10006-60 S) IC SMD LMC660CM O-AMP 4X IC125 002-10006-60 S) IC SMD LMC660CM O-AMP 4X IC140 002-10041-04 S) IC SMD 4104 4X VOLT SHIFTER IC150 002-10040-53 S)IC 4053B SMD BREAK B4 MAKE *IC160 20-1021 002-10040-53 S)IC 4053B SMD BREAK B4 MAKE *IC160 26-1021 002-10040-53 S)IC 4053B SMD BREAK B4 MAKE *IC200 20-1021 002-14515-00 LIM)IC MC145151DW2 SYNTH P-IP *IC200 26-1021 002-14515-00 LIM)IC MC145151DW2 SYNTH P-IP *IC210 20-1021 002-10006-62 S)IC SMD LMC662CM 2X O-AMP *IC210 26-1021 002-10006-62 S)IC SMD LMC662CM 2X O-AMP *IC220 20-1021 002-74910-04 S) IC SMD 74HCU04 6X INV *IC220 26-1021 002-74910-04 S) IC SMD 74HCU04 6X INV

T837 PCB Information M830P-00

*IC230 20-1021 002-10006-62 S)IC SMD LMC662CM 2X O-AMP *IC230 26-1020 002-10006-62 S)IC SMD LMC662CM 2X O-AMP *IC230 26-1021 002-10006-62 S)IC SMD LMC662CM 2X O-AMP IC240 002-10006-60 S) IC SMD LMC660CM O-AMP 4X IC250 002-10078-00 S)IC SMD MC78M05CDT 5V REG0.5A IC330 002-10003-58 S) IC SMD LM358 DUAL O-AMP IC610 002-10078-05 S) IC SMD 78L05 5V REG IC630 002-10003-17 (S) IC LM317L REG S0-8 100MA IC640 002-10003-58 S) IC SMD LM358 DUAL O-AMP IC650 002-10012-32 SMD DS1232LPS-2 LP RESET&W-DOG IC710 002-74900-04 S) IC SMD 74HC04D 6X INV BUFFD IC740 002-14519-10 S) IC MC145191F SMD SYNTH IC750 002-10330-78 S) IC MC33078D 2X AMP LO NOISE IC810 002-08951-20 S) IC AT89C51 PLCC44 MIC 12MHZ IC820 002-12416-00 S)IC SMD AT24C16N-10SC EEPROM

L335 056-10330-02 IND SMD 330NH SIMID02 L340 056-10330-02 IND SMD 330NH SIMID02 L345 052-08135-25 COIL A/W 2.5T/3.5MM HOR 0.8MM L346 052-08125-15 COIL A/W 1.5T/2.5MM HOR 0.8MM L355 056-14150-02 IND SMD 1.5UH SIMID02 L360 052-08135-35 COIL A/W 3.5T/3.5MM HOR 0.8MM L365 052-08140-15 COIL A/W 1.5T/4.0MM HOR 0.8MM L370 065-10009-20 BEAD FER SMD BDS 3/3/8.9-4S2 L375 065-10004-20 BEAD FE SMD CBD 4.6/3/3-4S2 L380 056-14150-02 IND SMD 1.5UH SIMID02 L385 052-08145-35 COIL A/W 3.5/4.5MM HOR 0.8MM L390 056-10330-02 IND SMD 330NH SIMID02 L750 056-10068-02 IND SMD 68NH SIMID02 L910 052-08145-35 COIL A/W 3.5/4.5MM HOR 0.8MM L920 052-08145-35 COIL A/W 3.5/4.5MM HOR 0.8MM

PL1 070-01001-00 D-RANGE 15 WAY COMPL T800 Q100 000-10008-47 S) XSTR SMD BCW72 NPN

Q101 000-10008-47 S) XSTR SMD BCW72 NPN Q102 000-10008-47 S) XSTR SMD BCW72 NPN Q103 000-10008-47 S) XSTR SMD BCW72 NPN *Q104 20-1021 000-10008-47 S) XSTR SMD BCW72 NPN *Q104 26-1021 000-10008-47 S) XSTR SMD BCW72 NPN Q105 000-10008-47 S) XSTR SMD BCW72 NPN Q305 000-10008-47 S) XSTR SMD BCW72 NPN Q310 000-10008-47 S) XSTR SMD BCW72 NPN Q315 000-00033-12 XSTR BD242 TO-220 PNP ISOLTD Q320 000-10008-07 S) XSTR SMD BC807 PNP SOT23 AF Q325 000-10008-07 S) XSTR SMD BC807 PNP SOT23 AF Q330 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS Q335 000-10008-07 S) XSTR SMD BC807 PNP SOT23 AF Q340 000-10008-47 S) XSTR SMD BCW72 NPN Q345 000-10008-47 S) XSTR SMD BCW72 NPN Q365 000-10038-66 S) XSTR SMD MRF3866 SO8 Q370 000-00022-30 S) XSTR 2N4427 NPN T039 VHF DR Q510 000-10008-07 S) XSTR SMD BC807 PNP SOT23 AF Q520 000-10008-07 S) XSTR SMD BC807 PNP SOT23 AF Q530 000-10008-07 S) XSTR SMD BC807 PNP SOT23 AF Q540 000-10008-07 S) XSTR SMD BC807 PNP SOT23 AF Q550 000-10008-17 S) XSTR SMD BC817-25 NPN SOT23 Q610 000-10008-07 S) XSTR SMD BC807 PNP SOT23 AF Q620 000-00033-12 XSTR BD242 TO-220 PNP ISOLTD Q630 000-10003-00 S) XSTR BSR30 PNP AF SOT-89 Q660 000-10008-17 S) XSTR SMD BC817-25 NPN SOT23 Q670 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS Q750 000-10008-07 S) XSTR SMD BC807 PNP SOT23 AF Q760 000-10008-47 S) XSTR SMD BCW72 NPN Q770 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS Q775 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS Q780 000-10008-47 S) XSTR SMD BCW72 NPN Q785 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS Q790 000-10003-12 S) XSTR SMD BFR31 N JFET SOT23 Q795 000-10057-10 S) XSTR SMD BR571 NPN SOT23 Q820 000-10008-17 S) XSTR SMD BC817-25 NPN SOT23 Q830 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS Q840 000-10008-57 S) XSTR SMD BCW70 PNP SOT23 SS Q850 000-10008-47 S) XSTR SMD BCW72 NPN Q860 000-10008-47 S) XSTR SMD BCW72 NPN

R100 036-14220-00 RES M/F 0805 2K2 5% R101 036-12220-00 RES M/F 0805 22E 5% R102 036-12220-00 RES M/F 0805 22E 5% R103 036-14470-10 RES M/F 0805 4K7 1% R104 036-14470-10 RES M/F 0805 4K7 1% R105 036-14470-10 RES M/F 0805 4K7 1% R106 036-14470-10 RES M/F 0805 4K7 1% R107 036-14470-10 RES M/F 0805 4K7 1% R108 036-14470-10 RES M/F 0805 4K7 1% R109 036-15150-00 RES M/F 0805 15K 5% R110 036-15100-10 RES M/F 0805 10K 1% R111 036-15100-10 RES M/F 0805 10K 1% R112 036-15100-10 RES M/F 0805 10K 1% R113 036-15100-10 RES M/F 0805 10K 1% R114 036-15470-10 RES M/F 0805 47K 1% R115 036-15150-00 RES M/F 0805 15K 5% R116 036-13100-10 RES M/F 0805 100E 1% R117 036-13470-00 RES M/F 0805 470E 5% R118 036-15470-10 RES M/F 0805 47K 1% R119 036-15100-10 RES M/F 0805 10K 1% R120 036-13470-00 RES M/F 0805 470E 5% R122 036-15100-10 RES M/F 0805 10K 1%

01/07/00 Copyright TEL

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IPN 220-01585-01

M830P-00 T837 PCB Information

Ref Var IPN Description Ref Var IPN Description

R123 036-13470-00 RES M/F 0805 470E 5% *R124 20-1021 036-12560-00 RES M/F 0805 56E 5% *R124 26-1021 036-12560-00 RES M/F 0805 56E 5% *R125 20-1021 036-14100-10 RES M/F 0805 1K 1% *R125 26-1021 036-14100-10 RES M/F 0805 1K 1% R126 036-14560-00 RES M/F 0805 5K6 5% R127 036-14100-10 RES M/F 0805 1K 1% *R128 20-1021 036-14220-00 RES M/F 0805 2K2 5% *R128 26-1021 036-14220-00 RES M/F 0805 2K2 5% R129 036-13560-10 RES M/F 0805 560E 1% R130 036-15100-10 RES M/F 0805 10K 1% R131 036-16470-00 RES M/F 0805 470K 5% R132 036-15100-10 RES M/F 0805 10K 1% *R133 20-1021 036-12220-00 RES M/F 0805 22E 5% *R133 26-1021 036-12220-00 RES M/F 0805 22E 5% %R134 20-1020 036-15220-00 RES M/F 0805 22K 5% %R134 20-1021 036-15220-00 RES M/F 0805 22K 5% %R134 26-1020 036-15120-00 RES M/F 0805 12K 5% %R134 26-1021 036-15120-00 RES M/F 0805 12K 5% *R135 20-1021 036-14100-10 RES M/F 0805 1K 1% *R135 26-1021 036-14100-10 RES M/F 0805 1K 1% R136 036-12100-10 RES M/F 0805 10E 1% %R137 20-1020 036-14150-10 RES M/F 0805 1K5 1% %R137 20-1021 036-14150-10 RES M/F 0805 1K5 1% %R137 26-1020 036-13820-00 RES M/F 0805 820E 5% %R137 26-1021 036-13820-00 RES M/F 0805 820E 5% %R138 20-1020 036-15220-00 RES M/F 0805 22K 5% %R138 20-1021 036-15220-00 RES M/F 0805 22K 5% %R138 26-1020 036-15120-00 RES M/F 0805 12K 5% %R138 26-1021 036-15120-00 RES M/F 0805 12K 5% %R139 20-1020 036-15220-00 RES M/F 0805 22K 5% %R139 20-1021 036-15220-00 RES M/F 0805 22K 5% %R139 26-1020 036-10000-00 RES M/F 0805 ZERO OHM %R139 26-1021 036-10000-00 RES M/F 0805 ZERO OHM %R140 20-1020 036-14120-00 RES M/F 0805 1K2 5% %R140 20-1021 036-14120-00 RES M/F 0805 1K2 5% %R140 26-1020 036-15390-10 RES M/F 0805 39K 1% %R140 26-1021 036-15390-10 RES M/F 0805 39K 1% *R141 20-1021 036-17100-10 RES M/F 0805 1M 1% *R141 26-1021 036-17100-10 RES M/F 0805 1M 1% *R142 20-1021 036-16100-10 RES M/F 0805 100K 1% *R142 26-1021 036-16100-10 RES M/F 0805 100K 1% *R143 20-1021 036-15220-00 RES M/F 0805 22K 5% *R143 26-1021 036-15220-00 RES M/F 0805 22K 5% *R144 20-1021 036-14100-10 RES M/F 0805 1K 1% *R144 26-1021 036-14100-10 RES M/F 0805 1K 1% *R145 20-1021 036-14470-10 RES M/F 0805 4K7 1% *R145 26-1021 036-14470-10 RES M/F 0805 4K7 1% *R146 20-1021 036-15470-10 RES M/F 0805 47K 1% *R146 26-1021 036-15470-10 RES M/F 0805 47K 1% *R147 20-1021 036-16100-10 RES M/F 0805 100K 1% *R147 26-1021 036-16100-10 RES M/F 0805 100K 1% %R148 20-1020 036-13560-10 RES M/F 0805 560E 1% %R148 20-1021 036-13560-10 RES M/F 0805 560E 1% %R148 26-1020 036-14270-10 RES M/F 0805 2K7 1% %R148 26-1021 036-14270-10 RES M/F 0805 2K7 1% R149 036-16100-10 RES M/F 0805 100K 1% *%R150 20-1021 036-10000-00 RES M/F 0805 ZERO OHM %R150 26-1020 036-15220-00 RES M/F 0805 22K 5% *%R150 26-1021 036-15220-00 RES M/F 0805 22K 5% *R151 20-1021 036-16560-00 RES M/F 0805 560K 5% *R151 26-1021 036-16560-00 RES M/F 0805 560K 5% *R152 20-1021 036-16100-10 RES M/F 0805 100K 1% *R152 26-1021 036-16100-10 RES M/F 0805 100K 1% R153 036-10000-00 RES M/F 0805 ZERO OHM *R154 20-1021 036-14220-00 RES M/F 0805 2K2 5% *R154 26-1021 036-14220-00 RES M/F 0805 2K2 5% R155 036-14270-10 RES M/F 0805 2K7 1% R156 036-14220-00 RES M/F 0805 2K2 5% *R158 20-1021 036-15100-10 RES M/F 0805 10K 1% *R158 26-1021 036-15100-10 RES M/F 0805 10K 1% *R159 20-1021 036-15220-00 RES M/F 0805 22K 5% *R159 26-1021 036-15220-00 RES M/F 0805 22K 5% *R160 20-1021 036-14270-10 RES M/F 0805 2K7 1% *R160 26-1021 036-14270-10 RES M/F 0805 2K7 1% *R161 20-1021 036-15100-10 RES M/F 0805 10K 1% *R161 26-1021 036-15100-10 RES M/F 0805 10K 1% R162 036-15100-10 RES M/F 0805 10K 1% R163 036-14100-10 RES M/F 0805 1K 1% R164 036-14100-10 RES M/F 0805 1K 1% R165 036-15120-00 RES M/F 0805 12K 5% *R166 20-1021 036-16100-10 RES M/F 0805 100K 1% *R166 26-1021 036-16100-10 RES M/F 0805 100K 1% *R167 20-1021 036-16100-10 RES M/F 0805 100K 1% *R167 26-1021 036-16100-10 RES M/F 0805 100K 1% R168 036-15180-10 RES M/F 0805 18K 1% R169 036-15180-10 RES M/F 0805 18K 1% R170 036-10000-00 RES M/F 0805 ZERO OHM R171 036-10000-00 RES M/F 0805 ZERO OHM R172 036-15330-10 RES M/F 0805 33K 1% *R174 20-1021 036-16100-10 RES M/F 0805 100K 1% *R174 26-1021 036-16100-10 RES M/F 0805 100K 1% *R175 20-1021 036-16100-10 RES M/F 0805 100K 1% *R175 26-1021 036-16100-10 RES M/F 0805 100K 1% R176 036-15390-10 RES M/F 0805 39K 1% R177 036-15100-10 RES M/F 0805 10K 1% R178 036-16330-00 RES M/F 0805 330K 5% *R179 20-1021 036-12220-00 RES M/F 0805 22E 5%

*R179 26-1021 036-12220-00 RES M/F 0805 22E 5% R180 036-15100-10 RES M/F 0805 10K 1% R181 036-15100-10 RES M/F 0805 10K 1% R182 036-15100-10 RES M/F 0805 10K 1% R183 036-14270-10 RES M/F 0805 2K7 1% R184 036-14470-10 RES M/F 0805 4K7 1% R185 036-15470-10 RES M/F 0805 47K 1% R186 036-13100-10 RES M/F 0805 100E 1% R187 036-15390-10 RES M/F 0805 39K 1% R188 036-13100-10 RES M/F 0805 100E 1% *R189 20-1021 036-12220-00 RES M/F 0805 22E 5% *R189 26-1021 036-12220-00 RES M/F 0805 22E 5% R190 036-17100-10 RES M/F 0805 1M 1% R191 036-14470-10 RES M/F 0805 4K7 1% R192 036-13100-10 RES M/F 0805 100E 1% R193 036-12220-00 RES M/F 0805 22E 5% R194 036-14270-10 RES M/F 0805 2K7 1% R195 036-12220-00 RES M/F 0805 22E 5% R196 036-17100-10 RES M/F 0805 1M 1% R197 036-12220-00 RES M/F 0805 22E 5% R198 036-12220-00 RES M/F 0805 22E 5% R199 036-17100-10 RES M/F 0805 1M 1% R200 036-17100-10 RES M/F 0805 1M 1% R201 036-15390-10 RES M/F 0805 39K 1% R202 036-12220-00 RES M/F 0805 22E 5% R203 036-16820-10 RES M/F 0805 820K 1% R204 036-12220-00 RES M/F 0805 22E 5% R205 036-15820-00 RES M/F 0805 82K 5% R206 036-15220-00 RES M/F 0805 22K 5% R207 036-15330-10 RES M/F 0805 33K 1% *R208 20-1021 036-12220-00 RES M/F 0805 22E 5% *R208 26-1021 036-12220-00 RES M/F 0805 22E 5% R209 036-12220-00 RES M/F 0805 22E 5% R210 036-15390-10 RES M/F 0805 39K 1% R211 036-14680-10 RES M/F 0805 6K8 1% R212 036-12220-00 RES M/F 0805 22E 5% R213 036-15390-10 RES M/F 0805 39K 1% R214 036-12220-00 RES M/F 0805 22E 5% R215 036-15100-10 RES M/F 0805 10K 1% R216 036-15470-10 RES M/F 0805 47K 1% R217 036-12220-00 RES M/F 0805 22E 5% *R218 20-1021 036-12220-00 RES M/F 0805 22E 5% *R218 26-1021 036-12220-00 RES M/F 0805 22E 5% R219 036-14180-00 RES M/F 0805 1K8 5% R220 036-15470-10 RES M/F 0805 47K 1% R221 036-14180-00 RES M/F 0805 1K8 5% R222 036-12100-10 RES M/F 0805 10E 1% R223 036-12220-00 RES M/F 0805 22E 5% *R224 20-1021 036-12220-00 RES M/F 0805 22E 5% *R224 26-1020 036-12220-00 RES M/F 0805 22E 5% *R224 26-1021 036-12220-00 RES M/F 0805 22E 5% R225 036-15470-10 RES M/F 0805 47K 1% R226 036-15470-10 RES M/F 0805 47K 1% *%R240 20-1021 036-10000-00 RES M/F 0805 ZERO OHM *%R240 26-1021 036-10000-00 RES M/F 0805 ZERO OHM *%R243 20-1021 036-10000-00 RES M/F 0805 ZERO OHM *%R243 26-1021 036-10000-00 RES M/F 0805 ZERO OHM *%R244 20-1021 036-10000-00 RES M/F 0805 ZERO OHM *%R244 26-1021 036-10000-00 RES M/F 0805 ZERO OHM *%R246 20-1021 036-10000-00 RES M/F 0805 ZERO OHM *%R246 26-1021 036-10000-00 RES M/F 0805 ZERO OHM *%R247 20-1021 036-10000-00 RES M/F 0805 ZERO OHM *%R247 26-1021 036-10000-00 RES M/F 0805 ZERO OHM R302 036-15220-00 RES M/F 0805 22K 5% R304 036-14270-10 RES M/F 0805 2K7 1% R306 036-15100-10 RES M/F 0805 10K 1% R308 036-16100-10 RES M/F 0805 100K 1% R310 036-15220-00 RES M/F 0805 22K 5% R312 036-14150-10 RES M/F 0805 1K5 1% R314 036-13100-10 RES M/F 0805 100E 1% R316 036-15100-10 RES M/F 0805 10K 1% R318 036-14220-00 RES M/F 0805 2K2 5% R320 036-14100-10 RES M/F 0805 1K 1% R322 036-12220-00 RES M/F 0805 22E 5% R324 036-13470-00 RES M/F 0805 470E 5% R326 036-13470-00 RES M/F 0805 470E 5% R328 036-13470-00 RES M/F 0805 470E 5% R330 036-12220-00 RES M/F 0805 22E 5% R332 036-15470-10 RES M/F 0805 47K 1% R334 036-15100-10 RES M/F 0805 10K 1% R336 036-14100-10 RES M/F 0805 1K 1% R340 036-16100-10 RES M/F 0805 100K 1% R342 036-12390-00 RES M/F 0805 39E 5% R344 036-13150-10 RES M/F 0805 150E 1% R345 036-12220-00 RES M/F 0805 22E 5% R346 036-14150-10 RES M/F 0805 1K5 1% R348 036-12470-00 RES M/F 0805 47E 5% R350 036-13560-10 RES M/F 0805 560E 1% R352 036-13330-00 RES M/F 0805 330E 5% R354 036-14100-10 RES M/F 0805 1K 1% R358 036-12470-00 RES M/F 0805 47E 5% R359 036-13150-10 RES M/F 0805 150E 1% R360 036-12120-00 RES M/F 0805 12E 5% R362 036-11470-00 RES M/F 0805 4E7 10% R364 036-14150-10 RES M/F 0805 1K5 1% R366 036-14150-10 RES M/F 0805 1K5 1% R368 036-14150-10 RES M/F 0805 1K5 1% R372 036-14150-10 RES M/F 0805 1K5 1%

C6.2.7

Page 86

IPN 220-01585-01

C6.2.8

Ref Var IPN Description Ref Var IPN Description

R375 036-11330-00 RES M/F 0805 3E3 5% R377 036-14100-10 RES M/F 0805 1K 1% R378 036-14100-10 RES M/F 0805 1K 1% R379 036-14120-00 RES M/F 0805 1K2 5% R380 036-13180-00 RES M/F 0805 180E 5% R381 036-13180-00 RES M/F 0805 180E 5% R382 036-15470-10 RES M/F 0805 47K 1% R384 036-15150-00 RES M/F 0805 15K 5% R385 036-16120-10 RES M/F 0805 120K 1% R386 036-14100-10 RES M/F 0805 1K 1% R387 036-14180-00 RES M/F 0805 1K8 5% R388 036-15150-00 RES M/F 0805 15K 5% R389 036-14180-00 RES M/F 0805 1K8 5% R390 036-15150-00 RES M/F 0805 15K 5% R391 036-14180-00 RES M/F 0805 1K8 5% R394 036-14470-10 RES M/F 0805 4K7 1% R396 036-14100-10 RES M/F 0805 1K 1% R502 036-13330-00 RES M/F 0805 330E 5% R505 036-15150-00 RES M/F 0805 15K 5% R510 036-13680-00 RES M/F 0805 680E 5% R515 036-12560-00 RES M/F 0805 56E 5% R520 036-16120-10 RES M/F 0805 120K 1% R525 036-15470-10 RES M/F 0805 47K 1% R530 036-15220-00 RES M/F 0805 22K 5% R535 036-15100-10 RES M/F 0805 10K 1% R540 036-14220-00 RES M/F 0805 2K2 5% R545 036-14470-10 RES M/F 0805 4K7 1% %R550 20-1020 036-14470-10 RES M/F 0805 4K7 1% %R550 20-1021 036-14470-10 RES M/F 0805 4K7 1% %R550 26-1020 036-14470-10 RES M/F 0805 4K7 1% %R550 26-1021 036-14470-10 RES M/F 0805 4K7 1% R555 036-14470-10 RES M/F 0805 4K7 1% R560 036-14120-00 RES M/F 0805 1K2 5% R609 036-14100-10 RES M/F 0805 1K 1% R613 036-13560-10 RES M/F 0805 560E 1% R615 036-13100-10 RES M/F 0805 100E 1% R617 036-10000-00 RES M/F 0805 ZERO OHM R619 036-01100-10 RES 1 OHM 1 WATT 2512 CHIP R621 036-01100-10 RES 1 OHM 1 WATT 2512 CHIP R625 036-14100-10 RES M/F 0805 1K 1% R629 036-03270-10 RES 270 OHM 1 WATT 2512 CHIP R633 036-14680-10 RES M/F 0805 6K8 1% R637 036-12220-00 RES M/F 0805 22E 5% R638 036-12220-00 RES M/F 0805 22E 5% R640 036-12100-10 RES M/F 0805 10E 1% R641 036-14150-10 RES M/F 0805 1K5 1% R645 036-13470-00 RES M/F 0805 470E 5% R649 036-14470-10 RES M/F 0805 4K7 1% R653 036-15100-10 RES M/F 0805 10K 1% R655 036-10000-00 RES M/F 0805 ZERO OHM R656 036-10000-00 RES M/F 0805 ZERO OHM R681 036-13100-10 RES M/F 0805 100E 1% R685 036-15150-00 RES M/F 0805 15K 5% R689 036-12100-10 RES M/F 0805 10E 1% R693 036-16100-10 RES M/F 0805 100K 1% R696 036-15560-10 RES MF 0805 56K 1% R709 036-12100-10 RES M/F 0805 10E 1% R710 036-13100-10 RES M/F 0805 100E 1% R711 036-13100-10 RES M/F 0805 100E 1% R734 036-13470-00 RES M/F 0805 470E 5% R735 036-13470-00 RES M/F 0805 470E 5% R736 036-13470-00 RES M/F 0805 470E 5% R742 036-13150-10 RES M/F 0805 150E 1% R743 036-13150-10 RES M/F 0805 150E 1% R744 036-12220-00 RES M/F 0805 22E 5% R746 036-12220-00 RES M/F 0805 22E 5% R747 036-12220-00 RES M/F 0805 22E 5% R748 036-15470-10 RES M/F 0805 47K 1% R749 036-15470-10 RES M/F 0805 47K 1% R750 036-12220-00 RES M/F 0805 22E 5% R752 036-12680-00 RES M/F 0805 68E 5% R753 036-17220-00 RES M/F 0805 2M2 5% R754 036-14100-10 RES M/F 0805 1K 1% R756 036-15120-00 RES M/F 0805 12K 5% R757 036-15120-00 RES M/F 0805 12K 5% R758 036-14120-00 RES M/F 0805 1K2 5% R759 036-13330-00 RES M/F 0805 330E 5% R760 036-13180-00 RES M/F 0805 180E 5% R762 036-13100-10 RES M/F 0805 100E 1% R763 036-13100-10 RES M/F 0805 100E 1% R765 036-13680-00 RES M/F 0805 680E 5% R766 036-14100-10 RES M/F 0805 1K 1% R767 036-13680-00 RES M/F 0805 680E 5% R769 036-13180-00 RES M/F 0805 180E 5% R771 036-14820-10 RES M/F 0805 8K2 1% R772 036-15220-00 RES M/F 0805 22K 5% R774 036-14820-10 RES M/F 0805 8K2 1% R775 036-14680-10 RES M/F 0805 6K8 1% R784 036-12680-00 RES M/F 0805 68E 5% R785 036-14330-10 RES M/F 0805 3K3 1% R786 036-12100-10 RES M/F 0805 10E 1% R787 036-12100-10 RES M/F 0805 10E 1% R790 036-13220-10 RES 0805 220E 1% R791 036-13100-10 RES M/F 0805 100E 1% R792 036-14100-10 RES M/F 0805 1K 1% R808 036-12100-10 RES M/F 0805 10E 1% R809 036-14470-10 RES M/F 0805 4K7 1% R810 036-14470-10 RES M/F 0805 4K7 1%

T837 PCB Information M830P-00

R811 036-14470-10 RES M/F 0805 4K7 1% R812 036-14470-10 RES M/F 0805 4K7 1% R813 036-14470-10 RES M/F 0805 4K7 1% R815 036-15470-10 RES M/F 0805 47K 1% R816 036-16150-00 RES M/F 0805 150K 5% R818 036-14470-10 RES M/F 0805 4K7 1% R819 036-14470-10 RES M/F 0805 4K7 1% R821 036-15470-10 RES M/F 0805 47K 1% R822 036-15470-10 RES M/F 0805 47K 1% *R824 20-1021 036-14220-00 RES M/F 0805 2K2 5% *R824 26-1021 036-14220-00 RES M/F 0805 2K2 5% *R825 20-1021 036-14220-00 RES M/F 0805 2K2 5% *R825 26-1021 036-14220-00 RES M/F 0805 2K2 5% *R826 20-1021 036-14220-00 RES M/F 0805 2K2 5% *R826 26-1021 036-14220-00 RES M/F 0805 2K2 5% *R827 20-1021 036-14220-00 RES M/F 0805 2K2 5% *R827 26-1021 036-14220-00 RES M/F 0805 2K2 5% *R828 20-1021 036-14220-00 RES M/F 0805 2K2 5% *R828 26-1021 036-14220-00 RES M/F 0805 2K2 5% *R829 20-1021 036-14220-00 RES M/F 0805 2K2 5% *R829 26-1021 036-14220-00 RES M/F 0805 2K2 5% *R830 20-1021 036-14220-00 RES M/F 0805 2K2 5% *R830 26-1021 036-14220-00 RES M/F 0805 2K2 5% *R831 20-1021 036-14220-00 RES M/F 0805 2K2 5% *R831 26-1021 036-14220-00 RES M/F 0805 2K2 5% *R832 20-1021 036-14220-00 RES M/F 0805 2K2 5% *R832 26-1021 036-14220-00 RES M/F 0805 2K2 5% *R833 20-1021 036-14220-00 RES M/F 0805 2K2 5% *R833 26-1021 036-14220-00 RES M/F 0805 2K2 5% *R835 20-1021 036-14220-00 RES M/F 0805 2K2 5% *R835 26-1021 036-14220-00 RES M/F 0805 2K2 5% *R836 20-1021 036-14220-00 RES M/F 0805 2K2 5% *R836 26-1021 036-14220-00 RES M/F 0805 2K2 5% *R837 20-1021 036-14220-00 RES M/F 0805 2K2 5% *R837 26-1021 036-14220-00 RES M/F 0805 2K2 5% *R840 20-1021 036-14220-00 RES M/F 0805 2K2 5% *R840 26-1021 036-14220-00 RES M/F 0805 2K2 5% *R841 20-1021 036-14220-00 RES M/F 0805 2K2 5% *R841 26-1021 036-14220-00 RES M/F 0805 2K2 5% *R842 20-1021 036-14220-00 RES M/F 0805 2K2 5% *R842 26-1021 036-14220-00 RES M/F 0805 2K2 5% R845 036-13470-00 RES M/F 0805 470E 5% R846 036-13470-00 RES M/F 0805 470E 5% R847 036-13470-00 RES M/F 0805 470E 5% R848 036-14470-10 RES M/F 0805 4K7 1% R849 036-13470-00 RES M/F 0805 470E 5% R853 036-14470-10 RES M/F 0805 4K7 1% R854 036-14470-10 RES M/F 0805 4K7 1%

RV100 042-05100-05 RES PRESET SMD 10K CER 4MM SQ RV101 042-05500-05 RES PRESET SMD 50K CER 4MM SQ RV102 042-05100-05 RES PRESET SMD 10K CER 4MM SQ

SK200 240-10000-07 CONN SMD SKT 16W 2R M-MATCH *SK220 20-1021 240-02100-44 SKT COAX MINI JACK PCB MT ANG. *SK220 26-1021 240-02100-44 SKT COAX MINI JACK PCB MT ANG. *SK805 20-1021 240-10000-07 CONN SMD SKT 16W 2R M-MATCH *SK805 26-1021 240-10000-07 CONN SMD SKT 16W 2R M-MATCH SK810 240-04020-42 SKT 44 PIN SMD PLCC

T610 050-15119-52 COIL SMD 680uH XFMR 5119-T052 %X100 20-1020 539-00010-55 TCXO 12.8M 1PPM-20+70/2PPM -30

%X100 20-1021 539-00010-45 VCTCXO 12.8MHZ +-1.5PPM-30+70C %X100 26-1020 539-00010-55 TCXO 12.8M 1PPM-20+70/2PPM -30 %X100 26-1021 539-00010-45 VCTCXO 12.8MHZ +-1.5PPM-30+70C X101 539-00010-46 VCTCXO 12.8MHZ 3.0PPM -30 +75C

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M830P-00 T837 PCB Information

T837 Mechanical & Miscellaneous Parts (IPN 220-01585-01)

IPN Description IPN Description

220-01585-01 POCSAG PAGING EXCITER PCB 240-02100-06 SKT COAX N TYPE PNL MTG OP-TER 240-04021-77 SKT JACK 1.3 PCB MT 64W 303-11169-04 CHASSIS PAINTED T8 00 SER II 303-23118-00 COVER A3M2247 D RANGE T855/7 303-50074-00 CLIP SPRING XSTR CLAMP T857 308-01007-01 HANDLE BS SII 2 WASHERS INC 312-01052-02 LID TOP T800 SER II PTND 312-01053-02 LID BOTTOM T800 SER II PNTD 316-06727-00 PNL FRT T800 SII PAGING 349-00020-36 SCREW TT M3X8m PANTORX BLK 349-00020-36 SCREW TT M3X8m PANTORX BLK 349-00020-43 SCRW T/T M4X12MM P/POZ BZ 349-00020-45 SCRW T/T M4X20MM P/POZ BZ 349-00020-55 SCRW M3*8 P/P T/T BLCKZNC CHRM 352-00010-08 NUT M3 COLD FORM HEX ST BZ 352-00010-29 NUT M4 NYLOC HEX 353-00010-13 WSHR M3 S/PROOF INT BZ 353-00010-24 WSHR M4x8mm Flat ST BZ 362-00010-33 GROMMET LED MTG 3MM 362-01101-00 GASKET INSUL SIL PAD 2000 TO5

C6.2.9

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C6.2.10

T837 PCB Information M830P-00

T837 Grid Reference Index (IPN 220-01585-01)

How To Use This Grid Reference Index

The first digit in the PCB layout reference is a "1" or "2", indicating the top or bottom side layout respectively, and th e last two characters give the location of the component on that diagram.

The first digit in the circuit diagram reference is the sheet number, and the last two characters give the location of the component on that sheet.

Device PCB Circuit Device PCB CircuitDevice PCB Circuit Device PCB Circuit

C100 1:C4 2-A9 C101 1:B5 2-A7 C102 1:D3 2-A4 C103 1:D2 2-A2 C104 1:D7 2-A0 C105 1:B5 2-B8 C106 1:A5 2-B7 *C107 1:C4 2-B9 C108 1:B5 2-B8 C109 1:B5 2-C6 *C110 1:C2 2-D1 *C111 1:C3 2-D1 C112 1:C6 2-D8 %C113 1:C8 2-E4 C115 1:A5 2-C7 *C122 1:C2 2-E1 C123 1:C6 2-E0 *C124 1:C3 2-F0 %C125 1:C9 2-F5 *C126 1:C3 2-F0 *C127 1:C2 2-F3 %C128 1:C9 2-F5 %C129 1:C9 2-G5 *C130 1:B2 2-G3 *C131 1:B3 2-G0 *C132 1:B3 2-G1 *C133 1:B2 2-G2 *C134 1:B3 2-H2 *C135 1:B3 2-H1 *%C136 1:D9 2-H5 %C137 1:D8 2-H5 C138 1:B6 2-H8 C139 1:B6 2-H7 *C140 1:C4 2-J0 C141 1:B6 2-J7 C142 1:B7 2-J9 *C143 1:B4 2-K2 C144 1:B7 2-K7 *C145 1:B4 2-K2 *C146 1:B3 2-K3 *C147 1:B2 2-L3 C148 1:D7 2-L1 C149 1:B6 2-M3 C150 1:C7 2-M2 C151 1:A6 2-M3 C152 1:B8 2-N7 C153 1:B8 2-N8 C154 1:B7 2-N2 C155 1:B8 2-N8 C156 1:B6 2-N3 *C157 1:C4 2-P2 C158 1:A6 2-P3 C159 1:C5 2-P4 C160 1:D4 2-P4 C161 1:B6 2-Q2 C162 1:C6 2-Q3 C163 1:B4 2-Q6 C164 1:C8 2-Q2 *C165 1:C3 2-Q3

C166 1:D4 2-Q4 C167 1:D4 2-R4 C168 1:C8 2-R4 *C169 1:C3 2-R3 C170 1:D8 2-R2 *C171 1:D8 2-R0 C172 1:D8 2-R2 *C173 1:D8 2-R0 C301 1:E8 3-A8 C304 1:F8 3-D9 C307 1:F8 3-C8 C309 1:F4 3-Q8 C310 1:F8 3-D8 C313 1:F7 3-G8 C317 1:F7 3-E8 C318 1:F7 3-F9 C319 1:F8 3-H9 C325 1:E5 3-K3 C328 1:E5 3-L4 C330A 1:F7 3-N8 C330B 1:F7 3-N8 C331 1:E6 3-L4 C334 1:E6 3-P4 C337 1:E6 3-Q4 C340 1:F5 3-C2 C343 1:F5 3-E3 C346 1:F4 3-D0 C349 1:F5 3-F1 C352 1:F5 3-G2 C355 1:F5 3-G2 C358 1:F5 3-H2 C361 1:E5 3-K3 %C370 1:E6 3-L2 C376 1:E7 3-P3 C379 1:E7 3-Q3 C382 1:F5 3-F1 C383 1:E6 3-L3 C384 1:E6 3-L2 C385 1:F6 3-B5 C388 1:E8 3-D6 C390 1:F7 3-D4 C391 1:E7 3-P3 C392 1:E7 3-F5 C393 1:E8 3-G6 C394 1:E7 3-F5 C395 1:F6 3-J6 C397 1:F6 3-J5 C398 1:E7 3-R4 C503 1:K6 5-M8 C505 1:K6 5-M6 C510 1:J5 5-E3 C513 1:H5 5-G4 C535 1:K5 5-M4 C550 1:K4 5-L2 C605 1:L6 6-D8 C610A 1:M5 6-F8 C610B 1:M5 6-G8 C611A 1:M6 6-H8 C611B 1:M5 6-J8

C623 1:N6 6-N8 C625 1:M6 6-Q8 C626 1:M6 6-R8 C628 1:M6 6-R8 C630 1:N5 6-K5 C631 1:N5 6-M6 C634 1:N5 6-M4 C636 1:M5 6-M4 C638 1:M6 6-P5 C640 1:M5 6-R6 C660 1:L5 6-K0 C665 1:L5 6-K0 C670 1:L5 6-L0 C673 1:L5 6-P2 C677 1:L6 6-P0 C681 1:L6 6-R2 C684 1:L6 6-R2 C687 1:M6 6-Q1 C690 1:L6 6-R0 C693 1:L6 6-R0 C706 1:J2 7-B5 C708 1:J2 7-C9 C709 1:K4 7-D9 C710 1:J3 7-D8 C712 1:H2 7-E7 C713 1:H2 7-E6 C714 1:J3 7-E8 C733 1:H2 7-E3 C735 1:J2 7-A1 C736 1:J2 7-B1 C740A 1:H2 7-B4 C740B 1:H2 7-B3 C741A 1:H2 7-C4 C741B 1:G2 7-C3 C742A 1:H2 7-D4 C742B 1:H3 7-D3 C743 1:H2 7-B1 C745 1:G3 7-D1 C750 1:H4 7-F8 C757 1:G4 7-F5 C759 1:G4 7-G4 C761 1:G3 7-J4 C762 1:G3 7-J4 C764 1:H3 7-H2 C765 1:G3 7-J2 C767 1:H3 7-K3 C769 1:H4 7-M4 C770 1:J4 7-N4 C772 1:G4 7-M2 C774 1:H4 7-P2 C776 1:H4 7-N1 C782 1:G2 7-N1 C784 1:G2 7-R1 C786 1:G2 7-R1 C788 1:G3 7-P0 C790 1:G3 7-Q0 C792 1:G3 7-R1 C810 1:L3 8-K8 C812 1:L2 8-F5

C813 1:N3 8-J4 C910 1:P7 9-E5 C920 1:P7 9-F5 C930 1:P6 9-G5

%D1 1:P5 1-Q1 %D2 1:P5 1-R1 *D100 1:B4 2-B9 *D100 1:B4 2-B9 D105 1:A4 2-B7 D105 1:A4 2-B7 *D116 1:C1 2-H3 D119 1:A7 2-Q8 D120 1:A6 2-J8 D120 1:A6 2-J8 D125 1:A8 2-R6 D130 1:D3 2-B4 D130 1:D3 2-B4 D135 1:D2 2-B2 D135 1:D2 2-B2 D140 1:C6 2-A0 D140 1:C6 2-A0 D160 1:D7 2-B0 D160 1:D7 2-B0 *D200 1:B2 2-G2 *D200 1:B2 2-G2 *D220 1:C3 2-F0 *D220 1:C3 2-F0 D340 1:F5 3-D2 D350 1:F5 3-E2 D360 1:F5 3-E2 D370 1:F7 3-M8 D610 1:N6 6-K6 D610 1:N6 6-L6 D640 1:L5 6-M1 D640 1:L5 6-M1 D645 1:M5 6-R6 D730 1:H3 7-H1 D740 1:H3 7-J2

IC100 1: C 6 2- L0 IC100 1: C 6 2- L3 IC100 1: C 6 2- D 0 IC100 1: C 6 2- D 8 IC100 1: C 6 2- D 8 IC100 1: C 6 2- C 8 IC100 1: C 6 2- C 8 IC102 1: B6 2-C6 IC102 1: B6 2-L1 IC102 1: B6 2-M3 IC102 1: B6 2-C7 IC102 1: B6 2-D6 IC102 1: B6 2-L1 IC102 1: B6 2-M1 IC105 1: C 6 2- E8 IC105 1: C 6 2- F8 IC105 1: C 6 2- N 3 IC110 1: B6 2-E6 IC110 1: B6 2-F6

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M830P-00 T837 PCB Information

Device PCB Circuit Device PCB Circuit Device PCB CircuitDevice PCB Circuit

IC110 1:B6 2-P3 IC115 1:C6 2-C4 IC115 1:C6 2-D0 IC115 1:C6 2-H9 IC115 1:C6 2-H7 IC115 1:C6 2-P3 IC120 1:B7 2-K9 IC120 1:B7 2-K6 IC120 1:B7 2-K8 IC120 1:B7 2-K7 IC120 1:B7 2-P2 IC125 1:C8 2-N6 IC125 1:C8 2-Q2 IC125 1:C8 2-M5 IC125 1:C8 2-N5 IC125 1:C8 2-P7 IC140 1:C7 2-N1 IC140 1:C7 2-L1 IC140 1:C7 2-L8 IC140 1:C7 2-D4 IC140 1:C7 2-P1 IC150 1:B7 2-J5 IC150 1:B7 2-L6 IC150 1:B7 2-M1 IC150 1:B7 2-L8 *IC160 1:C3 2-N1 *IC160 1:C3 2-J1 *IC160 1:C3 2-Q1 *IC160 1:C3 2-Q1 *IC200 1:B2 2-E1 *IC210 1:B3 2-G3 *IC210 1:B3 2-G1 *IC210 1:B3 2-K3 *IC220 1:C3 2-H0 *IC220 1:C3 2-Q3 *IC220 1:C3 2-D0 *IC220 1:C3 2-E0 *IC220 1:C3 2-G0 *IC220 1:C3 2-G0 *IC220 1:C3 2-E0 *IC230 1:D9 2-H5 *IC230 1:D9 2-G0 *IC230 1:D9 2-R0 IC240 1:C8 2-J0 IC240 1:C8 2-L0 IC240 1:C8 2-E5 IC240 1:C8 2-R2 IC240 1:C8 2-G4 IC250 1:D4 2-Q5 IC330 1:F8 3-E9 IC330 1:F8 3-M8 IC330 1:F8 3-M0 IC610 1:L5 6-G8 IC630 1:N5 6-K5 IC640 1:M5 6-N5 IC640 1:M5 6-R6 IC640 1:M5 6-N3 IC650 1:L5 6-D4 IC710 1:J2 7-D6 IC710 1:J2 7-D8 IC710 1:J2 7-D7 IC710 1:J2 7-D6 IC710 1:J2 7-C6 IC710 1:J2 7-G0 IC710 1:J2 7-G0 IC740 1:H2 7-D1 IC750 1:H4 7-M3 IC750 1:H4 7-H5 IC750 1:H4 7-F8 IC820 1:L4 8-N2

L335 1:F5 3-E3 L340 1:F5 3-F2 L345 1:F5 3-H2 L346 1:E5 3-H2 L355 1:E5 3-K3

L360 1:E6 3-K3 L365 1:E6 3-M3 L370 1:F6 3-N2 L375 1:E6 3-M4 L380 1:E6 3-N4 L385 1:E7 3-P3 L390 1:E7 3-R4 L750 1:G4 7-R0 L910 1:P7 9-F6 L920 1:P7 9-G6

MICROSTR

P100 1:P6 1-R8 P101 1:D3 2-A4 P103 1:D2 2-A2 P105 1:D8 2-J0 %P106 1:C1 2-J2 P810 1:L3 8-A5 *P820 1:L4 8-M8 *P825 1:L4 8-M8 *P830 1:L4 8-M8 *P835 1:L4 8-M7 *P840 1:L4 8-M7

PL100 1:P3 1-F0

Q100 1:D3 2-C4 Q101 1:D2 2-C2 Q102 1:C7 2-C0 Q103 1:C6 2-F0 *Q104 1:C3 2-J0 Q105 1:A7 2-Q8 Q305 1:E8 3-B8 Q310 1:F8 3-G8 Q315 1:F8 3-J8 Q320 1:F6 3-A5 Q325 1:F7 3-C5 Q330 1:F7 3-D4 Q335 1:E7 3-E6 Q340 1:E7 3-G6 Q345 1:F6 3-H6 Q365 1:E5 3-J2 Q370 2:E6 3-N3 Q510 1:J5 5-F3 Q520 1:J5 5-H4 Q530 1:J5 5-H3 Q540 1:K5 5-L4 Q550 1:K5 5-L3 Q610 1:L6 6-E8 Q620 1:N6 6-P8 Q630 1:M6 6-P5 Q660 1:L5 6-N1 Q670 1:M6 6-Q1 Q750 1:G4 7-F3 Q760 1:H3 7-H3 Q770 1:H3 7-H1 Q775 1:H3 7-K3 Q780 1:H3 7-K3 Q785 1:H3 7-K2 Q790 1:H3 7-L3 Q795 1:G3 7-P1 Q820 1:L2 8-D5 Q830 1:L2 8-D5 Q840 1:L2 8-F5 Q850 1:M2 8-G5 Q860 1:L4 8-B3

R100 1:C6 2-A0 R101 1:C4 2-A9 R102 1:B4 2-A8 R103 1:D7 2-A0 R104 1:D3 2-A4 R105 1:D2 2-A2 R106 1:D3 2-B4 R107 1:D7 2-B0

2:L8 1 -G8

R108 1:D2 2-B2 R109 1:B5 2-B8 R110 1:D3 2-C4 R111 1:D2 2-C2 R112 1:C7 2-C0 R113 1:C7 2-C4 R114 1:C5 2-C8 R115 1:A5 2-C7 R116 1:B5 2-C6 R117 1:C7 2-C0 R118 1:B5 2-C7 R119 1:C7 2-C0 R120 1:C7 2-C5 R122 1:C7 2-D0 R123 1:C7 2-D5 *R124 1:C2 2-D1 *R125 1:C3 2-D1 R126 1:C7 2-D4 R127 1:C6 2-D9 *R128 1:C3 2-D0 R129 1:C8 2-D4 R130 1:C6 2-E0 R131 1:C8 2-E5 R132 1:C6 2-E0 *R133 1:C2 2-E3 %R134 1:C8 2-E4 *R135 1:C3 2-E0 R136 1:C6 2-F0 %R137 1:C8 2-F5 %R138 1:C8 2-F4 %R139 1:C9 2-F5 %R140 1:C8 2-F5 *R141 1:B3 2-F0 *R142 1:C3 2-G0 *R143 1:B2 2-G2 *R144 1:B3 2-G1 *R145 1:B2 2-G2 *R146 1:C3 2-G2 *R147 1:B2 2-G3 %R148 1:C9 2-G5 R149 1:D8 2-H6 *%R150 1:D9 2-H5 *R151 1:B3 2-H2 *R152 1:C3 2-H2 R153 1:C8 2-H0 *R154 1:C2 2-H3 R155 1:C6 2-H9 R156 1:B6 2-H7 %R157 1:C8 2-H0 *R158 1:C3 2-H2 *R159 1:B3 2-J1 *R160 1:C3 2-H0 *R161 1:C3 2-H2 R162 1:C9 2-H0 R163 1:B6 2-J7 R164 1:B7 2-J9 R165 1:B7 2-J8 *R166 1:C4 2-J0 *R167 1:B4 2-J2 R168 1:D7 2-J6 R169 1:D7 2-J5 R170 1:D7 2-J4 R171 1:D7 2-J4 R172 1:B7 2-J8 %R173 1:C3 2-J2 *R174 1:C3 2-J0 *R175 1:B4 2-J2 R176 1:B7 2-K8 R177 1:B7 2-K8 R178 1:B7 2-K7 *R179 1:B4 2-K2 R180 1:B7 2-K6 R181 1:B7 2-K6 R182 1:B7 2-K8 R183 1:C7 2-K8 R184 1:C8 2-K0

R185 1:D8 2-K0 R186 1:B7 2-K5 R187 1:C8 2-K5 R188 1:B7 2-K7 *R189 1:B2 2-K3 R190 1:C7 2-L7 R191 1:C8 2-L0 R192 1:B7 2-L8 R193 1:B6 2-L3 R194 1:D8 2-L0 R195 1:D7 2-L2 R196 1:B8 2-M7 R197 1:C8 2-M2 R198 1:A6 2-M3 R199 1:B8 2-M8 R200 1:B8 2-M8 R201 1:C8 2-M5 R202 1:B7 2-N2 R203 1:B8 2-N6 R204 1:B6 2-N3 R205 1:B8 2-N8 R206 1:C8 2-N5 R207 1:B8 2-N6 *R208 1:C4 2-N2 R209 1:A6 2-P3 R210 1:B8 2-P7 R211 1:B8 2-P5 R212 1:B6 2-P2 R213 1:B8 2-P7 R214 1:C6 2-P3 R215 1:B4 2-Q7 R216 1:A6 2-Q7 R217 1:C8 2-Q2 *R218 1:C4 2-Q3 R219 1:B7 2-Q8 R220 1:A7 2-R7 R221 1:B8 2-R7 R222 1:D4 2-R5 R223 1:D8 2-R2 *R224 1:D8 2-R0 R225 1:D4 2-R5 R226 1:C8 2-R4 *%R240 1:B2 2-E2 *%R241 1:B2 2-E2 *%R242 1:B2 2-E2 *%R243 1:A2 2-E2 *%R244 1:A2 2-E2 *%R245 1:B2 2-E2 *%R246 1:B2 2-E2 *%R247 1:B2 2-E1 R302 1:E8 3-A7 R304 1:E8 3-B7 R306 1:F8 3-C8 R308 1:F8 3-C9 R310 1:F8 3-C9 R312 1:F7 3-D8 R314 1:F7 3-D7 R316 1:F8 3-E8 R318 1:F7 3-E9 R320 1:F8 3-G9 R322 1:F8 3-H8 R324 1:E8 3-J8 R326 1:E7 3-J7 R328 1:F8 3-K8 R330 1:F7 3-M8 R332 1:F7 3-C5 R334 1:E7 3-D6 R336 1:F7 3-D5 R340 1:F6 3-D5 R342 1:F5 3-C2 R344 1:F4 3-C2 R345 1:F7 3-F7 R346 1:F5 3-D2 R348 1:F5 3-D1 R350 1:F5 3-E1 R352 1:E5 3-J2

C6.2.11

Page 90

IPN 220-01585-01

C6.2.12

Device PCB Circuit Device PCB CircuitDevice PCB Circuit Device PCB Circuit

R354 1:E5 3-J2 R358 1:E6 3-M2 R359 1:F4 3-B2 R360 1:E7 3-Q3 R362 1:E7 3-Q3 R364 1:E7 3-P2 R366 1:E7 3-Q2 R368 1:F5 3-G1 R372 1:F5 3-D0 R375 1:E5 3-L4 R377 1:E5 3-J3 R378 1:F7 3-D4 R379 1:E5 3-J3 R380 1:E5 3-J4 R381 1:E5 3-K4 R382 1:E7 3-F6 R384 1:E7 3-F5 R385 1:F7 3-F6 R386 1:F6 3-K6 R387 1:E6 3-M4 R388 1:F6 3-J6 R389 1:E6 3-N4 R390 1:F6 3-J6 R391 1:E6 3-N4 R394 1:E7 3-G5 R396 1:E7 3-H5 R502 1:K6 5-N8 R505 1:K6 5-M7 R510 1:K6 5-M7 R515 1:H6 5-E2 R520 1:J5 5-E3 R525 1:J5 5-E3 R530 1:J5 5-E3 R535 1:J5 5-F3 R540 1:K5 5-H4 R545 1:K5 5-J3 %R550 1:K5 5-J4 %R553 1:K5 5-K3 R555 1:K5 5-K3 R560 1:K5 5-M2 R609 1:L6 6-B8 R613 1:L6 6-C8 R615 1:M5 6-F9 R617 1:M5 6-J8 R619 1:N6 6-L8 R621 1:N6 6-L8 R625 1:N6 6-L7 R629 1:M6 6-P6 R633 1:M5 6-Q8 R637 1:N5 6-K6 R638 1:N5 6-K6 R640 1:M5 6-R6 R641 1:N5 6-L4 R645 1:N5 6-L5 R649 1:M5 6-M5 R653 1:M5 6-Q4 R655 1:L4 6-B4 R656 1:L4 6-B4 R681 1:L5 6-L1 R685 1:L5 6-N2 R689 1:L6 6-Q2 R693 1:L5 6-Q0 R696 1:L6 6-Q0 R709 1:J2 7-D8 R710 1:H2 7-E7 R711 1:J2 7-B6 R734 1:K2 7-A2 R735 1:K2 7-A2 R736 1:K2 7-A2 R742 1:H2 7-B4 R743 1:H2 7-C5 R744 1:G2 7-D4 R746 1:H3 7-E4 R747 1:H3 7-E5 R748 1:J2 7-A1 R749 1:J2 7-B1

T837 PCB Information M830P-00

R750 1:H4 7-F9 R752 1:G4 7-F5 R753 1:G4 7-F3 R754 1:G3 7-F3 R756 1:G3 7-G5 R757 1:G4 7-G4 R758 1:H3 7-H4 R759 1:H3 7-H4 R760 1:H3 7-K4 R762 1:H3 7-K4 R763 1:H3 7-L4 R765 1:H3 7-H2 R766 1:G3 7-J3 R767 1:H3 7-K2 R769 1:H3 7-K3 R771 1:H4 7-L3 R772 1:G4 7-M2 R774 1:H4 7-M3 R775 1:H4 7-N2 R784 1:G3 7-P1 R785 1:G3 7-Q1 R786 1:G2 7-R1 R787 1:G2 7-R2 R790 1:G3 7-P0 R791 1:G3 7-Q0 R792 1:G3 7-Q0 R808 1:L2 8-B4 R809 1:L2 8-D5 R810 1:L3 8-D6 R811 1:L2 8-E6 R812 1:L2 8-D5 R813 1:L2 8-D4 R815 1:L2 8-F4 R816 1:L2 8-F4 R818 1:M2 8-F5 R819 1:M2 8-F5 R821 1:M4 8-B3 R822 1:M4 8-E3 *R8241:L48-L8 *R8251:L48-L8 *R8261:L48-L8 *R8271:L48-L7 *R8281:L48-L7 *R8291:L48-P9 *R8301:L38-P9 *R8311:L38-P9 *R8321:L38-P8 *R8331:L38-P8 *R8351:L38-P8 *R8361:L38-P8 *R8371:L38-P7 *R8401:L38-P7 *R8411:L38-P7 *R8421:L38-P6 R845 1:M4 8-Q5 R846 1:M4 8-Q4 R847 1:N3 8-Q4 R848 1:L2 8-J4 R849 1:N3 8-Q3 R853 1:M4 8-N3 R854 1:M4 8-N3

RV100 1:D8 2-J5 RV101 1:D7 2-J4 RV102 1:C9 2-N5 %RV300 1:F7 3-D7

SK200 1:C2 2-P0 *SK220 1:C2 2-C1 SK5011:G65-D6 SK5021:G65-D6 SK5031:G65-D5 SK5041:G55-D5 SK5051:G55-D4 SK513 1:H5 5-H5 SK522 1:H6 5-E2

SK531 1:K6 5-N6 SK532 1:K5 5-N6 SK533 1:K5 5-N5 SK534 1:K5 5-N5 SK535 1:K5 5-N4 *SK805 1:K3 8-Q6 *SK805 1:K3 8-Q9 *SK805 1:K3 8-Q6 *SK805 1:K3 8-Q9 *SK805 1:K3 8-Q7 *SK805 1:K3 8-Q5 *SK805 1:K3 8-Q7 *SK805 1:K3 8-Q8 *SK805 1:K3 8-Q7 *SK805 1:K3 8-Q8 *SK805 1:K3 8-Q6 *SK805 1:K3 8-Q8 *SK805 1:K3 8-Q6 *SK805 1:K3 8-Q8 *SK805 1:K3 8-Q7 *SK805 1:K3 8-Q9 SK810 1:M3 8-H5

SL100 1:D6 2-A0 SL101 1:C7 2-C4 SL102 1:C7 2-C0 SL103 1:C7 2-D4 SL104 1:C6 2-D0 SL320 1:F7 3-E4 SL501 2:J5 5-G3

T610 1:L6 6-N1

TP100 1:A8 2-P8 TP101 1:B4 2-Q7 TP308 1:E7 3-G6 TP310 1:F6 3-L6 TP601 1:N5 6-K9 TP602 1:L6 6-R9 TP603 1:L5 6-J1 TP604 1:L4 6-M6 TP607 1:M5 6-J9 TP710 1:G4 7-H5 TP715 1:J2 7-C6

%X100 1:C5 2-A8 X101 1:B5 2-A7

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M830P-00 DI

Part D T838 & T839 Power Amplifiers

Caution: There are no user serviceable components in these power amplifiers.

Refer all servicing to your nearest Tait Dealer or Customer Service Organisation.

This part of the manual is divided into five sections, as listed below. There is a detailed table of contents at the start of each section.

Section Title

1 General Information

2 Circuit Operation

3 Initial Adjustment

4 Fault Finding

5 PCB Information

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DII M830P-00

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M830P-00 T838/839 General Information D1.1

1 T838/839 General Information

This section provides a brief description of the T838/839 PA, along with detailed specifications and a list of types available.

The following topics are covered in this section.

Section Title Page

1.1 Introduction 1.5

1.2

1.2.1

1.2.2

1.2.3

1.2.3.1

1.2.3.2

1.2.3.3

1.2.3.4

1.3 Product Codes 1.9

1.4 Paging Product Range 1.10

Specifications

Introduction

General

Tes t S ta nd a r ds European Telecommunication Standard (ETS) DTI CEPT Recommendation T/R-24-01 Telecommunications Industry Association Chinese Radio Regulatory Commission

1.6

1.7

1.8

Figure Title Page

1.1

1.2

T838/839 Main Circuit Block Identification

T838/839 Front Panel Controls

1.4

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D1.2 T838/839 General Information M830P-00

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M830P-00 T838/839 General Information D1.3

replace A4 pages D1.3/D1.4 with A3 pages D1.3/D1.4

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D1.4 T838/839 General Information M830P-00

replace A4 pages D1.3/D1.4 with A3 pages D1.3/D1.4

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M830P-00 T838/839 General Information D1.5

1.1 Introduction

The T838 & T839 are FM base station power amplifiers designed for single or multichannel operation in the 148 to 174MHz frequency range. The typical output power capabilities are as follows:

T838 - 10 to 60W T839 - 20 to 120W.

The T838 PA comprises a single broad band RF power module whose output is filtered before being fed to the output socket.

The T839 PA comprises two broad band RF power modules whose outputs are recombined (using a quadrature hybrid combiner) and filtered before being fed to the output socket. This dual module design enables the transmitter to produce at least one quarter of its rated power if one of the modules fails.

VSWR and thermal protection is incorporated into the basic design, while monitoring and alarm signals are available for both forward and reverse power. The output power is adjustable from the front panel.

The main PCB is mounted directly on a die-cast chassis/heatsink. Extensive use is made of the latest surface mount technology. Effective RF isolation between the PA control circuitry and RF stages is achieved by internal metal shields.

Forced air cooling for the heatsink is provided on the T839 by a fan, which is activated whenever the transmitter is keyed. Thermal sensors will also activate the fan automatically if the internal temperature reaches an unacceptable level.

The T838 has a width of 60mm and occupies a single space in a Tait rack frame, which has the ability to accommodate up to seven standard modules. The T839 has a width of 120mm and occupies a double space.

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D1.6 T838/839 General Information M830P-00

1.2 Specifications

1.2.1 Introduction

The performance figures given are minimum figures, unless otherwise indicated, for

equipment operating at standard room temperature (+22°C to +28°C) and standard test

voltage (13.8V DC).

Where applicable, the test methods used to obtain the following performance figures are those described in the ETS and Chinese GB/T 15938 specifications. Refer to Section

1.2.3 for details of test standards.

Details of test methods and the conditions which apply for Type Approval testing in all countries can be obtained from Tait Electronics Ltd.

1.2.2 General

Power Output:

T838 - Rated Power .. 50W

- Range Of Adjustment .. 10 to 60W (typical)

T839 - Rated Power .. 100W

- Range Of Adjustment .. 20 to 120W (typical)

Input Power .. 600mW to 1W

Duty Cycle Rating:

T838 .. 50W continuous to +60°C

T839 .. 100W continuous to +60°C

Intermodulation .. -70dBc or -40dBi (PA with output isolator) & interfering signal of -30dBc

Mismatch Capability:

Ruggedness .. refer to your nearest Tait Dealer or

Customer Service Organisation

Stability .. 5:1 VSWR (all phase angles)

Supply Voltage:

with 25dB isolation

Operating Voltage .. 10.8 to 16V DC Standard Test Voltage .. 13.8V DC Polarity .. negative earth only Polarity Protection .. crowbar diode

1. dBi denotes the level of the intermodulation product relative to the interfering signal.

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M830P-00 T838/839 General Information D1.7

Supply Current:

Standby .. 50mA Transmit - T838 .. 11A (9A typical @ 156MHz)

- T839 .. 19A (15A typical @ 156MHz)

Spurious Emissions:

Conducted - Transmit .. -36dBm to 1GHz

-30dBm to 4GHz

- Standby .. -57dBm to 1GHz

-47dBm to 4GHz

Radiated - Transmit .. -36dBm to 1GHz

-30dBm to 4GHz

- Standby .. -57dBm to 1GHz

-47dBm to 4GHz

Operating Temperature Range .. -30°C to +60°C

Dimensions:

Height .. 183mm Width - T838 .. 60mm

- T839 .. 120mm

Length .. 340mm

We ig h t:

T838 .. 3.2kg T839 .. 3.4kg

1.2.3 Test Standards

Where applicable, this equipment is tested in accordance with the following standards.

1.2.3.1 European Telecommunication Standard

ETS 300 086 January 1991

Radio equipment and systems; land mobile service; technical characteristics and test conditions for radio equipment with an internal or external RF connector intended primarily for analogue speech.

ETS 300 113 March 1996

Radio equipment and systems; land mobile service; technical characteristics and test conditions for radio equipment intended for the transmission of data (and speech) and having an antenna connector.

ETS 300 219 October 1993

Radio equipment and systems; land mobile service; technical characteristics and test conditions for radio equipment transmitting signals to initiate a specific response in the receiver.

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D1.8 T838/839 General Information M830P-00

ETS 300 279 February 1996

Radio equipment and systems; electromagnetic compatibility (EMC) standard for private land mobile radio (PMR) and ancillary equipment (speech and/or non-speech).

1.2.3.2 DTI CEPT Recommendation T/R-24-01

Annex I: 1988

Technical characteristics and test conditions for radio equipment in the land mobile service intended primarily for analogue speech.

Annex II: 1988

Technical characteristics of radio equipment in the land mobile service with regard to quality and stability of transmission.

1.2.3.3 Telecommunications Industry Association

ANSI/TIA/EIA-603-1992

Land mobile FM or PM communications equipment measurement and performance standards.

1.2.3.4 Chinese Radio Regulatory Commission

GB/T 15938 - 1995

General specification for equipment of radio paging systems.

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Tait TEL0038, TEL0040 Cct Description Part List

Specifications and Main Features

Frequently Asked Questions

User Manual