Anritsu MS9720A Bedienungsanleitung

Second Edition

MS9720A

WDM Network Tester

Service Manual

ANRITSU CORPORATION

Document No.: M-W1343BE-2.0

To ensure that this equipment is used safely,

important safety items are explained in the

MS9720A WDM Network Tester Operation

Manual. This manual explains important ser-

vice items related to service. Read both the

operation manual and this manual, and keep

both with the equipment.

MS9720A

WDM Network Tester

Service Manual

30 July 1998 (First Edition)

15 July 2002 (Second Edition)

publisher.

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

Printed in Japan

To prevent the risk of personal injury or loss related to equipment malfunction, Anritsu Corporation uses the following

safety symbols to indicate safety-related information. Insure that you clearly understand the meanings of the

symbols BEFORE using the equipment.

Some or all of the symbols may not be used on this equipment. In addition, when drawings are included in this

manual, labels on the equipment may not be shown on them.

Safety Symbols Used in Manual

DANGER

WARNING

CAUTION

Safety Symbols Used on Equipment and/or in Manual

The following safety symbols are used inside or on the equipment near operation locations, and/or in manual to

provide information about safety items and operation precautions. Insure that you clearly understand the

meanings of the symbols and take the necessary precautions BEFORE using the equipment.

This indicates a prohibited operation. The prohibited operation is indicated

symbolically in or near the barred circle.

This indicates an obligatory safety precaution. The obligatory operation is

indicated symbolically in or near the circle.

This indicates warning or caution. The contents are indicated symbolically

in or near the triangle.

This indicates a note. The contents are described in the box.

These indicate that the marked part should be recycled.

This indicates a very dangerous procedure that could result in death or serious

injury if not performed properly.

This indicates a hazardous procedure that could result in death or serious injury

if not performed properly.

This indicates a hazardous procedure or danger that could result in light-to-severe

injury, or loss related to equipment malfunction, if proper precautions are not taken.

Safety Symbols

iii

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 covers

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

equipment covers.

For Safety

WARNING

This equipment cannot be repaired by the user. DO NOT at-

tempt to open the cabinet or to disassemble internal parts.

Only Anritsu-trained service personnel or staff from your

sales representative with a knowledge of electrical fire and

shock hazards should service this equipment. There are

high-voltage parts in this equipment presenting a risk of se-

vere injury or fatal electric shock to untrained personnel. In

addition, there is a risk of damage to precision parts.

When supplying power to this equipment, connect the acces-

sory 3-pin power cord to a 3-pin grounded power outlet. If a

grounded 3-pin outlet is not available, before supplying

power to the equipment, use a conversion adapter and

ground the green wire, or connect the frame ground on the

rear panel of the equipment to ground. If power is supplied

without grounding the equipment, there is a risk of receiving a

severe or fatal electric shock.

CAUTION

ALWAYS disconnect the power cord from the power outlet

BEFORE changing a fuse. If the cord is not disconnected,

there is a risk of receiving a fatal electric shock.

When changing fuses always use the same fuses as de-

scribed in this manual or of the same rating and characteris-

tics as described on the label attached to the equipment cabi-

net.

The fuse marking T3.15A means a timelag-type fuse. Use a

3.15 A fuse for 100-V systems and a 1.6 A fuse for 200-V sys-

tems.

Repair

WARNING

Changing fuses

CAUTION

For Safety

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

This manual is written for service personnel trained by Anritsu Service Training

Course and explains how to service the Anritsu MS9720A WDM Network Tester,

how to install the light source, how to install the latest software version, and how to

troubleshoot faults. It also explains repair by exchanging modules but does not de-

scribe parts-level repair of modules.

Refer to the operation manual (M-W1343AE) for a description of the operation meth-

ods, how to test the performance and for the periodic calibration procedures.

About This Manual

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

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

Section 1 Outline .......................................... 1-1

Upgrading software ................................................................. 1-2

Troubleshooting and repairing faults ...................................... 1-3

Section 2 Name and Function of Each Part 2-1

2.1 Part Names ................................................................... 2-2

2.2 Removing Covers ......................................................... 2-6

2.2.1 Removing Top Cover ..................................... 2-6

2.2.2 Removing Left Side Cover ............................. 2-7

2.2.3 Removing Right Side Cover ........................... 2-7

2.2.4 Removing Rear-Panel Cover 1 ....................... 2-8

2.2.5 Opening Printer Chassis ................................ 2-9

2.2.6 Removing Bottom Cover ................................ 2-10

2.3 Explanation of Modules ................................................ 2-11

2.3.1 Control Module (A1 and A13) ........................ 2-11

2.3.2 Motor Drive Module (A2) ................................ 2-12

2.3.3 Panel Block Module (A3) ................................ 2-12

2.3.4

Measurement and Optical Module (A4 and A6)

.. 2-12

2.3.5 Interface Module (A5) ..................................... 2-13

2.3.6 Reference Light Module (A9) ......................... 2-13

2.3.7 Reference Light & SLD (A10) ........................ 2-13

2.3.8 Power Module (A11) ...................................... 2-13

2.3.9 Motherboard Module (A12) ............................ 2-14

2.3.10 Power Unit Module (E1) ............................... 2-14

2.3.11 Fan Module (E2) .......................................... 2-14

2.3.12 FDD Module (E3) ......................................... 2-14

2.3.13 Printer Driver Module (E4) ........................... 2-14

2.3.14 Printer Module (E5) ...................................... 2-14

2.3.15 LCD Module (H1) ......................................... 2-14

Section 3 Maintenance Mode ....................... 3-1

3.1 Role of Maintenance Mode and Start Method .............. 3-2

3.1.1 Role of Maintenance Mode ............................ 3-2

3.1.2 Starting Maintenance Mode ........................... 3-2

3.2 Maintenance Operations .............................................. 3-3

3.2.1 Updating Software Version ............................ 3-3

3.2.2 Initializing Backup RAM ................................. 3-4

3.2.3 Initializing Timer ............................................. 3-4

3.2.4 Adding Options .............................................. 3-5

3.2.5 Setting Equipment Version Display ................ 3-6

3.2.6 Other Special Functions ................................. 3-6

3.3 List of Function Keys .................................................... 3-7

Table of Contents

III

Section 4 Installing Light Sources .............. 4-1

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

4.2 Reference Light Source & SLD .................................... 4-3

4.2.1 Parts ............................................................... 4-3

4.2.2 Installing ......................................................... 4-6

Section 5 Troubleshooting .......................... 5-1

5.1 General ......................................................................... 5-3

5.2 Error Message at Initial Screen .................................... 5-3

5.3 Abnormal Data I/O ........................................................ 5-4

5.4 Abnormal Measurement ............................................... 5-4

5.5 Abnormal Performance ................................................. 5-5

Section 6 Repair .......................................... 6-1

6.1 Removing and Testing Each Module ............................ 6-2

6.1.1 Control Module ............................................... 6-2

6.1.2 Motor Drive Module......................................... 6-3

6.1.3 Panel Module .................................................. 6-4

6.1.4 Measurement/Optical Module ......................... 6-6

6.1.5 Interface Module ............................................. 6-8

6.1.6 Reference Light Module .................................. 6-9

6.1.7 Reference Light Source & SLD ....................... 6-10

6.1.8 Power Module ................................................. 6-11

6.1.9 Motherboard Module ....................................... 6-12

6.1.10 Power Unit Module ....................................... 6-13

6.1.11 Fan Module ................................................... 6-15

6.1.12 FDD Module .................................................. 6-15

6.1.13 Printer Driver Module .................................... 6-16

6.1.14 Printer Module............................................... 6-17

6.1.15 LCD Module .................................................. 6-18

6.2 Factory Repair .............................................................. 6-20

Appendix A List of Options........................ A-1

Table of Contents

IV.

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