Anritsu MP9677B User manual

i
Second Edition
To ensure that this equipment is used safely, important
safety items are explained in the MP9677B E/O, O/E
Converter Operation Manual.
This manual explains important service items related
to service.
Read both the operation manual and this manual, and
keep both with the equipment.
MP9677B
E/O, O/E Converter
Service Manual
Document No.: M-W1808BE-2.0
ANRITSU CORPORATION

ii
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 following five symbols may not be used on all Anritsu equipment. In addition, there may be other
labels attached to products which are not shown in the diagrams in this manual.
Symbols used in manual
DANGER
WARNING
CAUTION
Safety Symbols Used on Equipment and in Manual
The following safety symbols are used inside or on the equipment near operation locations 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 indi-
cated 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.
MP9677B
E/O, O/E Converter
Service Manual
31 August 2000 (First Edition)
15 July 2002 (Second Edition)
Copyright © 2000-2002, ANRITSU CORPORATION.
All rights reserved. No part of this manual may be reproduced without the prior written permission of the
publisher.
The contents of this manual may be changed without prior notice.
Printed in Japan
This indicates a very dangerous procedure that could result in serious injury or
death if not performed properly.
This indicates a hazardous procedure that could result in serious injury or death 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
WARNING
1. ALWAYS refer to the operation manual when working near locations at
which the alert mark shown on the left is attached. If the operation, etc.,
is performed without heeding the advice in the operation manual, there
is a risk of personal injury. In addition, the equipment performance may
be reduced.
Moreover, this alert mark is sometimes used with other marks and de-
scriptions indicating other dangers.
2. Laser radiation warning
• NEVER look directly into the cable connector on the equipment nor
into the end of a cable connected to the equipment. If laser radiation
enters the eye, there is a risk of injury.
• Laser Radiation Markings on a following page show the Laser Safety
label attached to the equipment near the cable connector.
3. When supplying power to this equipment, connect the accessory 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 conver-
sion 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.
4. This equipment cannot be repaired by the user. DO NOT attempt to
open the cabinet or to disassemble internal parts. Only Anritsu-trained
service personnel or staff from your sales representative with a knowl-
edge 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.
5. This equipment should be used in the correct position. If the cabinet is
turned on its side, etc., it will be unstable and may be damaged if it falls
over as a result of receiving a slight mechanical shock.
or
Repair
WARNING
Falling Over

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CAUTION
1. Before changing the fuses, ALWAYS remove the power cord from the
poweroutlet and replace the blown fuses. ALWAYS use new fuses of
the type and rating specified on the fuse marking on the rear panel of
the cabinet.
T6.3A indicates a time-lag fuse.
6.3A or F6.3 A indicate a normal fusing type fuse.
There is risk of receiving a fatal electric shock if the fuses are replaced
with the power cord connected.
2. Keep the power supply and cooling fan free of dust.
•Clean the power inlet regularly. If dust accumulates around the
power pins, there is a risk of fire.
•Keep the cooling fan clean so that the ventilation holes are not ob-
structed. If the ventilation is obstructed, the cabinet may overheat
and catch fire.
3. NEVER input a signal of more than indicated value between the mea-
sured terminal and ground. Input of an excessive signal may damage
the equipment.
Changing Fuse
CAUTION
Cleaning
Check Terminal
For Safety

v
For Safety
LASER SAFETY
This equipment is a Class-1 Laser Product as defined by the relevant
safety specifications (JIS, IEC825, 21CFR1040.10). Class 1 is indicated
at MP9677B E/O, O/E Converter.
Laser Radiation Markings (Label)
Customers in Japan and other than United States
1Explanation label
Customers in United States
2Certification label
3Identification label

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For Safety
Laser Radiation Markings (Label attachment positions)

vii
Equipment Certificate
Anritsu Corporation certifies that this equipment was tested before shipment using
calibrated measuring instruments with direct traceability to public testing organiza-
tions recognized by national research laboratories including the Electrotechnical Labo-
ratory, the National Research Laboratory of Metrology and the Communications Re-
search Laboratory, and was found to meet the published specifications.
Anritsu Warranty
Anritsu Corporation will repair this equipment free-of-charge if a malfunction occurs
within 1 year after shipment due to a manufacturing fault, provided that this warranty is
rendered void under any or all of the following conditions.
• The fault is outside the scope of the warranty conditions described in the operation
manual.
• The fault is due to mishandling, misuse, or unauthorized modification or repair of
the equipment by the customer.
• The fault is due to severe usage clearly exceeding normal usage.
• The fault is due to improper or insufficient maintenance by the customer.
• The fault is due to natural disaster including fire, flooding, earthquake, etc.
• The fault is due to use of non-specified peripheral equipment, peripheral parts,
consumables, etc.
• The fault is due to use of a non-specified power supply or in a non-specified instal-
lation location.
In addition, this warranty is valid only for the original equipment purchaser. It is not
transferable if the equipment is resold.
Anritsu Corporation will not accept liability for equipment faults due to unforeseen and
unusual circumstances, nor for faults due to mishandling by the customer.
Anritsu Corporation Contact
If this equipment develops a fault, contact Anritsu Corporation or its representatives at
the address in this manual.

viii
Notes On Export Management
This product and its manuals may require an Export License/Approval by
the Government of the product's country of origin for re-export from your
country.
Before re-exporting the product or manuals, please contact us to confirm
whether they are export-controlled items or not.
Disposal
The unit uses gallium arsenide. Dispose the unit with care by comply-
ing with applicable national laws and local regulations.

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CE Marking
Anritsu affix the CE Conformity Marking on the following product (s) in accordance
with the Council Directive 93/68/EEC to indicate that they conform with the EMC
directive of the European Union (EU).
CE Conformity Marking
1. Product Name/Model Name
Product Name: E/O, O/E Converter
Model Name: MP9677B
2. Applied Directive
EMC : Council Directive 89/336/EEC
Safety: Council Directive 73/23/EEC
3. Applied Standards
EMC:
Electromagnetic radiation:
EN55011 (ISM, Group 1, Class A equipment)
Immunity:
EN50082-1
Performance Criteria*
IEC801-2 (ESD) 4 kVCD, 8 kVAD B
IEC801-3 (Rad.) 3 V/m A
IEC801-4 (EFT) 1 kV B
*: Performance Criteria
A: No performance degradation or function loss
B: Self-recovered temporary degradation of performance or
temporary loss of function
Harmonic:
EN61000-3-2
Note: This product isn't applied to the EN61000-3-2
Safety: EN61010-1 (Installation Category II, Pollution Degree 2)

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Anritsu affix the C-tick marking on the following product (s) in accordance with the
regulation to indicate that they conform with the EMC framework of Australia/New
Zealand
C-tick marking
N274
1. Product Name/Model Name
Product Name: E/O, O/E Converter
Model Name: MP9677B
2. Applied Standards
EMC:
Emission:
AS/NZS 2064.1/2 (ISM, Group 1, Class A equipment)
Immunity:
AS/NZS 4252.1
*Performance Criteria
IEC801-2 (ESD) 8 kVAD B
IEC801-3 (Rad.) 3 V/m A
IEC801-4 (EFT) 1 kV(peak) B
* Performance Criteria
A: No performance degradation or function loss
B: Self-recovered temporary degradation of performance or
temporary loss of function

xi
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
F
U
S
E
Example 2: An example of the double fuse is shown below:
Fuse Holders
F
U
S
E
F
U
S
E

xii

I
About This Manual
This is a service manual written for service personnel trained by Anritsu Service
Course and describes how to service the Anritsu MP9677B E/O, O/E Converter, and
how to troubleshoot faults.
This service manual explains how to maintain the MP9677B E/O, O/E Converter.
It consists of the following 3 sections.
Section 1 Outline of Operation
Section 1 explains the configuration and the block diagrams of the
MP9677B.
Section 2 Troubleshooting
Section 2 explains how to locate a fault portion at occurrence of a fault.
Section 3 Mechanichal Configuration
Section 3 explains how to remove a defective part for troubleshooting
and how to replace it with a good one.

II
Table of Contents
For Safety ...................................................... iii
About This Manual........................................ I
Section 1 Outline of Operation ................... 1-1
1.1 Exchangeable Module Lists ............................................ 1-2
1.2 Block Diagram ................................................................ 1-5
1.3 Module function .............................................................. 1-7
1.4 General Circuit Diagram ................................................. 1-11
Section 2 Troubleshooting.......................... 2-1
2.1 Outline ............................................................................ 2-2
2.2 Service Kits ..................................................................... 2-3
2.3 Instruments Required for Troubleshooting ..................... 2-4
2.4 Overall Troubleshooting .................................................. 2-5
Section 3 Mechanical Configuration .......... 3-1
3.1 MP9677B/MU967701A/MU967702A Disassembly ......... 3-2
.

1-1
1.1 Exchangeable Module Lists ...................................... 1-2
1.2 Block Diagram .......................................................... 1-5
1.2.1 Block Diagram of MP9677B .......................... 1-5
1.2.2 Block Diagram of MU967701A/MU967702A .. 1-6
1.3 Module function ........................................................ 1-7
1.3.1 MP9677B Module Function ........................... 1-7
1.3.2 MU967701A Module Function ....................... 1-9
1.3.3 MU967702A Module Function ....................... 1-10
1.4 General Circuit Diagram ........................................... 1-11
1.4.1 MP9677B ....................................................... 1-11
1.4.2 MU967701A .................................................. 1-15
1.4.3 MU967702A .................................................. 1-17
Section 1 Outline of Operation

Section 1 Outline of Operation
1-2
1.1 Exchangeable Module Lists
The MP9677B is composed of the 3 Exchangeable modules (MN2706A, MN2704A1,
and G1 Power Supply) and 6 Options listed inTables 1-1 and 1-2, respectively.
The MU967701A is composed of the 15 modules listed inTable 1-3.
The MU967702A is composed of the 16 modules listed inTable 1-4.
Table 1-1 Exchangeable Modules of MP9677B
Exchangeable Model Name Product Name Order No. Remarks
— A1 MOTHER BOARD 44Y107693
— A2 E/O DC Power Supply 44Y107695
— A3 O/E DC Power Supply 44Y107697
— A8 LED (for LD) W4Y107948
— A9 CW Light Source 44Y107699
— A10 LED (for POW) W4Y107950
— A11 CLOCK INPUT 429H15137D
— A12 D-F/F+OUT2 429H15651F
MN2706A A13 WIDEBAND AMPLIFIER W4Z24869
— A14 D-F/F 429H15437C
— A15 CLOCK INPUT 429H15137D
MN2704A1 A16 WIDEBAND AMPLIFIER W4W23468
— A26 D-F/F BIAS 44Y100701
— A35 CLOCK INPUT BIAS 44Y100063
— A42 D-F/F+OUT2 BIAS 44Y101141
— E1 FAN NO.1278
— F1 FUSE Z4F100060
POWER SUPPLY UNIT G1 POWER SUPPLY UNIT 44Z107741 1 fuse
— U1 Photo Diode 44Z108407
— Z3 Phase Adjuster W4Z23673
— Z10 Wideband Amplifier NO.2260
— Z13 Optical Modulator NO.1272
— Z25 Phase Adjuster W4Z23673
— Z32 Phase Adjuster W4Z23673

1-3
Table 1-2 Options of MP9677B
Name Order No.
External optical input function MP9677B-01
E/O converter (minus option) MP9677B-10
ST connector MP9677B-38
DIN connector MP9677B-39
SC connector MP9677B-40
HMS-10/A connector MP9677B-43
Table 1-3 Modules of MU967701A
Product Name Order No. Remarks
A1 CLOCK RECOVERY CONTROL 44Y107723
A2 CLOCK RECOVERY CIRCUIT 2 44Y107695
A3 DATA INPUT 429H15439J
A24 DATA INPUT BIAS 44Y100213
E1 FAN NO.1278
K1 RF COAXIAL SWITCH NO.1305
K2 RF COAXIAL SWITCH NO.1305
Z4 BIAS TEE NO.1768
Z6 BANDPASS-FILTER (WIDE) 44Z107660
Z7 RF WIDEBAND AMPLIFIER NO.5986
Z9 BANDPASS-FILTER (WIDE) 44Z107660
Z10 BANDPASS-FILTER (NARROW) NO.1256
Z11 PHASE SHIFTER NO.1587
Z13 RF WIDEBAND AMPLIFIER NO.5986
Z15 POWER SPLITTER NO.1626
1.1 Exchangeable Module Lists

Section 1 Outline of Operation
1-4
Table 1-4 Modules of MU967702A
Product Name Order No. Remarks
A1 CLOCK RECOVERY CONTROL 44Y107723
A2 CLOCK RECOVERY CIRCUIT2 44Y108903
A3 DATA INPUT 429H15439J
A24 DATA INPUT BIAS 44Y100213
E1 FAN NO.1278
K1 RF COAXIAL SWITCH NO.1305
K2 RF COAXIAL SWITCH NO.1305
Z4 BIAS TEE NO.1768
Z6 BANDPASS-FILTER (WIDE) 44Z107660
Z7 RF WIDEBAND AMPLIFIER NO.5986
Z9 BANDPASS-FILTER (WIDE) 44Z107660
Z10 BANDPASS-FILTER (NARROW) NO.1256
Z11 PHASE SHIFTER NO.1587
Z13 RF WIDEBAND AMPLIFIER NO.5986
Z15 POWER SPLITER NO.1626
Z20 BANDPASS-FILTER (WIDE) 44Z107660

1-5
1.2 Block Diagram
1.2.1 Block Diagram of MP9677B
ATT
ATT In
p
ut Clock
Phase Adjuster AMP
Decision AMP ATT
Optical
Output
LN Modulator
Data
Input
Clock
Input LN Bias
ATT
Divider
Decision ATT Data
Output
Through
Data Input
Internal Clock
Phase Adjuster
ATT
Retiming
Clock Input
Output Clock
Phase Adjuster ATT Clock
Output
Key Switch
Remote Inter Lock
E/O DC
Power Supply
O/E DC
Power Supply
Mother Board
MU967701A/02A
Clock Recovery Unit
Through
Data Output
Retiming
Clock Output
AC
DC
<<E/O section>>
<<O/E section>>
PD AMP ATT AMP ATT Reshaped
Data Output
Optical
Input
Reshaped
Data Input
Fig. 1-1 Block Diagram of MP9677B
Note:
With MU967701A/MU967702A Clock Recovery Unit mounted
1.2 Block Diagram

Section 1 Outline of Operation
1-6
1.2.2 Block Diagram of MU967701A/MU967702A
AMP
Clock Output
Retiming
Clock Output
CW Light
Clock
Recovery Module
Data Input
Reshaped
Data Output
Through
AMP
NARROW
WIDE
BPF
BPF
SW SW
Band Width
Fig. 1-2 Block Diagram of MU967701A/MU967702A