Anritsu MP1777A Manuale utente

Third Edition

To ensure that this equipment is used safely, important

safety items are explained in the MP1777A 10 GHz

Jitter Analyzer Operation Manual.

This manual explains important service items related

service. Read both the operation manual and this

manual, and keep both with the equipment.

ANRITSU CORPORATION

Document No.: M-W1497BE-3.0

MP1777A

10 GHz Jitter Analyzer

Service Manual

MP1777A 10 GHz Jitter Analyzer

Service Manual

1 June 1999(First Edition)

2 September 2002(Third Edition)

publisher.

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

Printed in Japan

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 cover for

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

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 equipment

covers.

iii

Part Names ＆

＆＆

＆Part Numbers

Please specify the part numbers shown in the parts list when making inquiries or when ordering parts. There

may be a difference between the names of parts used in this manual and the parts actually used in the

equipment or supplied for repair. This is because equivalent part parts with the same functions, performance

and reliability as the parts specified in the circuit diagrams and parts list have been used or supplied. Since

the parts are equivalent, they have absolutely no adverse effect on the equipment specified functions,

performance or reliability.

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

Table of Contents

For Safety...................................................... ii

Section 1 General....................................... 1-1

Section 2 Outline of Operation.................. 2-1

2.1 Exchangeable Module Lists............................................. 2-2

2.2 Block Diagram.................................................................. 2-4

2.3 Module functions.............................................................. 2-11

Section 3 Troubleshooting ........................ 3-1

3.1 Outline.............................................................................. 3-2

3.2 Service Kits ...................................................................... 3-2

3.3 Instruments Required for Troubleshooting ...................... 3-3

3.4 Overall Troubleshooting................................................... 3-4

Section 4 Adjustment ................................ 4-1

4.1 Outline.............................................................................. 4-2

4.2 Instruments Required for Adjustment .............................. 4-3

4.3 A2 CPU (MM100124A) .................................................... 4-4

4.4 A3 CLOCK GENERATOR (MM100125A*1)..................... 4-6

4.5 A401/A402 JITTER TX (MM100126A*2).......................... 4-7

4.6 A5 JITTER 10 G (MM100127A*3) .................................... 4-8

4.7 A8 JITTER MEASUREMENT(MM100128A*4)................. 4-9

4.8 Tx Overall Adjustment ..................................................... 4-10

4.9 Overall Adjustment........................................................... 4-13

4.10 Calibration........................................................................ 4-19

4.11 Automatic Inspection........................................................ 4-22

Section 5 Mechanical Configuration......... 5-1

Note:

Module names for Option 04

*1 MM100162A

*2 MM100163A

*3 MM100164A

*4 MM100166A

II.

Section 1 General

1-1

This service manual explains how to maintain the MP1777A 10 GHz Jitter Analyzer.

Refer to the separate operation manual for handling the instruments.

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

instrument 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 who Anritsu has authorized to open the

instrument and repair it.

As clearly stated in the WARRANTY statement, any unauthorized modification,

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

This service manual consists of the following 5 sections.

Section 1 General

Section 1 explains the configuration of this service manual.

Section 2 Outline of Operation

Section 2 explains the configuration and the block diagram of the

MP1777A.

Section 3 Troubleshooting

Section 3 explains how to locate a fault portion at occurrence of a

fault.

Section 4 Adjustment

Section 4 explains the adjustment, calibration, and automatic

inspection of the MP1777A.

Section 5 Mechanichal Configuration

Section 5 explains how to remove a defective part for troubleshooting

or replacement.

Note:

A table for the list of Dwg. No. of circuit diagrams, parts list, and PC boards

is provided in the separate “Schematics (M-W1497GE)” of the MP1777A,

with the circuit diagrams and parts list.

Section 1 General

1-2.

Section 2 Outline of Operation

2-1

2.1 Exchangeable Module Lists....................................... 2-2

2.2 Block Diagram ........................................................... 2-4

2.3 Module function ......................................................... 2-11

Section 2 Outline of Operation

2-2

2.1 Exchangeable Module Lists

The MP1777A is Composed of the 24 exchangeable modules and 5 Options listed in

Tables 2-1 and 2-2, respectively.

Table 2-1 Exchangeable Modules of MP1777A

Model Name Product Name Order No./

Mfg. Code No. Remarks

A1 MOTHER BOARD 44Y104613

MM100124A A2 CPU 44Y104614

MM100125A A3 CLOCK GENERATOR 44Y104615

MM100126A A401/A402 JITTER TX 44Y104616+44Y104843

MM100127A A5 JITTER 10 G 44Y104619

MM100128A A6/A7 JITTER DETECTOR 44Y104617+44Y104618

MM100129A A8 JITTER MEASUREMENT 44Y104841

MM100130B A9 R-F 44Y104621

MM100131B A10 L-F 44Y104842

A11 CNCT 44Y104844

MM100132A A13 CAL 44Y104845

44Z103580 G1 Power supply unit 44Z103580 2 fuses

44Z103580B G1 Power supply unit 44Z103580B 1 fuse

NL6448AC20-02 H1 LCD

(Liquid crystal display)

No. 1256

UC25100-MX-M U2 UP CONVERTER No. 1494 Standard/Option 01

DC10025-MA-M U3 DOWN CONVERTER No. 1494 Standard/Option 01

DC10626-MA-M U4 DOWN CONVERTER No. 1494 Option 02

UC26106-MX-M U5 UP CONVERTER No. 1494 Option 02

U6 MDC-154SMA (MIXER) No. 1620

MN2706A U8 WIDEBAND AMPLIFIER W4Z24869 Option 10

K1-11 HCS2-110-F

(RF COAXIAL SWITCH)

No. 1305

MM100162A A3 CLOCK GENERATOR 44Y107933 Option 04

MM100163A A401/A402 JITTER TX 44Y107934+44Y104843 Option 04

MM100164A A5 JITTER 10G 44Y107935 Option 04

MM100165A A6/A7 JITTER DETECTOR 44Y107936+44Y107937 Option 04

MM100166A A8 JITTER MEASUREMENT 44Y107938 Option 04

DC12231-MA-M U4 DOWN CONVERTER 44Y107263 Option 04

UC31122-MX-M U5 UP CONVERTER 44Y107262 Option 04

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