Anritsu MT8802A Manuale utente

Second Edition

MT8802A

Radio Communication Analyzer

Service Manual

ANRITSU CORPORATION

Document No.: M-W1382BE-2.0

To ensure that this equipment is used safely, im-

portant safety items are explained in the MT8802A

Radio Communication Analyzer Operation Manual.

This manual explains important service items re-

lated service.

Read both the operation manual and this manual,

and keep both with the equipment.

MT8802A Radio Communication Analyzer

Service Manual

1 November 1999 (First Edition)

13 November 2002 (Second Edition)

publisher.

The contents of this manual may be changed without prior notice.

Printed in Japan

iii

For Safety

For safety, do not open the equipment covers.

If repair is required, contact the sales representative, branch office, or agent at the telephone number

and address given in this document or in the equipment operation manual.

Although not recommended by Anritsu Corporation, if it is really imperative to open the convers for

emergency repair, take great care not to touch any dangerous parts.

Always request repair by a trained engineer who understands the hazards.

Anritsu Corporation will not accept liability for any injuries sustained as a result of opening the equip-

ment covers.

Power Line Fuse Protection

For safety, Anritsu products have either one or two fuses in the AC power lines as

requested by the customer when ordering.

Single fuse: A fuse is inserted in one of the AC power lines.

Double fuse: A fuse is inserted in each of the AC power lines.

Example 1: An example of the single fuse is shown below:

Fuse Holder

Example 2: An example of the double fuse is shown below:

Fuse Holders

About This Manual

This is the service manual of the MT8802A Radio Communication Analyzer for

smooth maintenance and service work of the service personnel, and does not supplied

to customers. Only used for service personnel.

Refer to the separate operation manual (an accessory supplied to the equipment) for

handling the instruments.

Our basic policy to the repair is return to the factory system, i.e. the defective instru-

ment should be returned to Anritsu for repair.

However, it may be time consuming and some kinds of repairs can be easily done in the

field.

Therefore, Anritsu allows only those whom Anritsu has authorized to open the instru-

ment and repair it.

As clearly stated in the WARRANTY statement in the separate operation manual, any

unauthorized modification, repair, or attempt to repair will render the warranty void.

Table of Contents

For Safety ...................................................... iii

About This Manual........................................ I

Section 1 Specifications.............................. 1-1

Section 2 Block Diagram and Basic

Explanation ................................. 2-1

2.1 Signal Flow ..................................................................... 2-2

2.2 Explanation of Each Block .............................................. 2-3

Section 3 Level Diagram ............................. 3-1

Section 4 Troubleshooting.......................... 4-1

4.1 Detecting Faulty Block .................................................... 4-2

4.2 Adjustment after Unit Replacement ................................ 4-5

Section 5 Total Adjustment......................... 5-1

5.1 Adjustment of Spectrum analyzer ................................... 5-2

5.2 Adjustment of Power meter ............................................ 5-5

5.3 IF Gain Adjustment ......................................................... 5-6

5.4 Confirmation of detection level ....................................... 5-6

5.5 A05 MOD DSP1 .............................................................. 5-7

5.6 A16 AF ............................................................................ 5-8

5.7 A31 CDMA IQ ................................................................. 5-12

5.8 MT8802A Software Operation Instructions ..................... 5-13

III

Section 6 Correction Software.................... 6-1

6.1 Outline ............................................................................ 6-2

6.2 System configuration ...................................................... 6-2

6.3 Development Environment ............................................. 6-2

6.4 Program setup ................................................................ 6-2

6.5 Software Summary ......................................................... 6-3

6.6 Operation ........................................................................ 6-6

6.7 Program Operations ....................................................... 6-33

6.8 Error Codes List .............................................................. 6-45

Section 7 Inspection Software .................... 7-1

7.1 Outline ............................................................................ 7-2

7.2 System Configuration ..................................................... 7-2

7.3 Development Environment ............................................. 7-3

7.4 Program Setup ................................................................ 7-3

7.5 Outline of Displayed Screen ........................................... 7-4

7.6 Operation Procedure ...................................................... 7-24

Section 8 Check of Call Processing

Function ...................................... 8-1

8.1 Outline ............................................................................ 8-2

8.2 Instrument to be required ................................................ 8-2

8.3 Check Procedure ............................................................ 8-2

Section 9 Mechanical Configuration .......... 9-1

Section 10 Exchange Module List .............. 10-1

IV..

1-1

Section 1 Specifications

This manual does not cover performance and function specifications of the MT8802A

and options. For details, refer to the separate operation manuals.

Section 1 Specifications

1-2..

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