Aloka ProSound Alpha 10 User manual

FILE 1

SERVICE MANUAL

SSD - ALPHA10

1 / 2

English Edition

Document Number : MN2-2008

Document Revision : 2!

Copyright

©

MN2-2008, Rev.2

SSD-ALPHA10 SERVICE MANUAL

1 / 6

Contents of SSD-ALPHA10 SERVICE MANUAL 1/2

PAGE

Section 1 How to use this service manual page 1-1~1-4 (4 pages)

1-1 Service Manual···················································································· 1 - 1

1-2 Contents of this Service Manual·························································· 1 - 1

1-3 Construction of This Service Manual··················································· 1 - 1

1-4 Contents of Each Section····································································· 1 - 2

Section 2 PRECAUTIONS (read without fail) page 2-1~2-6 (6 pages)

2-1 Precautions Against Electrical Hazards to Serviceman ························ 2 - 1

2-2 Precautions Against Mechanical Hazards to Serviceman····················· 2 - 1

2-3 Precautions Against Germ Hazards to Serviceman ······························ 2 - 1

2-4 Precautions for Keeping Electrical Safety············································ 2 - 2

2-5 Precautions for Keeping Mechanical Safety ········································ 2 - 2

2-6 Precautions for Keeping Chemicals Safety·········································· 2 - 2

2-7 Preparation to be Made at Service Center············································ 2 - 2

2-8 Care to be taken in the Field································································ 2 - 3

2-9 Precaution for Monitor repairing ························································· 2 - 3

2-10 Handling of S.M.D. PCBs ··································································· 2 - 4

2-11 System symbols··················································································· 2 - 5

Section 3 BEFORE REPAIRING page 3-1~3-12 (12 pages)

3-1 Repair work on the description of Service Manual ······························ 3 - 1

3-2 Upgrade work on the description of Service Manual ··························· 3 - 6

Section 4 PRINCIPLE OF SYSTEM OPERATION page 4-1~4-102 (102 pages)

4-1 System Specification ··········································································· 4 - 1

4-2 System Configuration·········································································· 4 - 17

4-3 System Block Diagram········································································ 4 - 20

4-4 Principle of System Operation····························································· 4 - 75

4-4-1 System Control ···································································· 4 - 75

4-4-2 Tx/Rx unit············································································ 4 - 81

4-4-3 Digital Imaging Unit···························································· 4 - 91

4-4-4 Physiological Signal Display unit PEU-ALPHA10*············ 4 - 99

4-4-5 Power Supply unit PSU-ALPHA10 ····································· 4 -100

4-4-6 Viewing Color TV Monitor·················································· 4 -102

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Section 5

SCHEMATICS page 5-1~5-208 (208 pages)

Main Body

SSD-ALPHA10 CABLE CONNECTION ·········································· 5 - 1

CABLE 001, 010, 011, 012, 013, 020, 030, 031, 032, 033 ·················· 5 - 7

CABLE 101, 110, 111········································································· 5 - 18

CABLE 201 ························································································ 5 - 19

CABLE 301 ························································································ 5 - 20

CABLE 401, 410, 420········································································· 5 - 21

CABLE 701, 710 ················································································ 5 - 23

CABLE 801, 802 ················································································ 5 - 25

CABLE 950, 951, 953, 954, 955, 956, 957·········································· 5 - 28

Backplane EP4911··························································· 5 - 35

EP5280··························································· 5 - 58

TD Jumper EP4973··························································· 5 - 81

DBF Jumper EP4974··························································· 5 - 82

Jumper EP5262··························································· 5 - 83

EP5325··························································· 5 - 84

Storage drive unit EU-9098

Foot SW PCB EP4732 ··················································· 5 - 85

CABLE 520, 521, 522, 530································································· 5 - 86

USB/ATA Converter EP5178 ··················································· 5 - 91

USB/ATA Converter-HUB EP5503 ··················································· 5 - 93

CABLE 501, 502, 510········································································· 5 - 90

Main power supply unit EU-6030*

EU-6030B Circuit Diagram································································· 5 - 99

EU-6030B Wiring Diagram································································· 5 -100

EU-6030C Circuit Diagram································································· 5 -101

EU-6030C Wiring Diagram································································· 5 -102

EU-6030D* Circuit Diagram ······························································ 5 -103

EU-6030D* Wiring Diagram ······························································ 5 -104

EU-6030E* Circuit Diagram······························································· 5 -105

EU-6030E* Wiring Diagram······························································· 5 -106

EU-6030F Circuit Diagram································································· 5 -107

EU-6030F Wiring Diagram································································· 5 -108

EU-6030G Circuit Diagram ································································ 5 -109

EU-6030G Wiring Diagram ································································ 5 -110

AC Line Filter Unit EP510400B*····································· 5 - 111

EP510400D*····································· 5 -112

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AC/DC Converter Unit EP510500A*····································· 5 -113

EP510500D*····································· 5 -114

DC/DC Converter unit (1) EP510600B*····································· 5 -115

EP510600D*····································· 5 -116

DC/DC Converter unit (2) EP510700B*····································· 5 -117

EP510700D*····································· 5 -118

Low Voltage Circuit (1) EP510800B*····································· 5 -119

EP510800D*····································· 5 -120

Low Voltage Circuit (2) EP510900B*····································· 5 -121

EP510900C*····································· 5 -122

Motherboard EP511000C* ····································· 5 -123

EP511000D*····································· 5 -124

DC/DC Converter unit EP537200A*····································· 5 -125

Low Voltage Circuit EP537300A*····································· 5 -126

CABLE 041, 042, 043········································································· 5 -128

Sub power supply unit EU-6031*

EU-6031B Circuit Diagram································································· 5 -131

EU-6031B Wiring Diagram································································· 5 -132

EU-6031C Circuit Diagram································································· 5 -133

EU-6031C Wiring Diagram································································· 5 -134

High Voltage Circuit (1) EP511100A*····································· 5 -135

EP511100C* ····································· 5 -139

High Voltage Circuit (2) EP5127·············································· 5 -143

AC Outlet EP5250·············································· 5 -144

Viewing Color TV monitor IPC-1710*

IPC-1710/-1710(B) FRAME CONNECTION····································· 5 -145

IPC-1710/-1710(B) MAIN CIRCUIT ················································· 5 -146

IPC-1710/-1710(B) VIDEO CIRCUIT················································ 5 -150

IPC-1710(C) FRAME CONNECTION··············································· 5 -151

IPC-1710(C) MAIN CIRCUIT···························································· 5 -152

IPC-1710(C) VIDEO CIRCUIT·························································· 5 -156

Viewing Color TV monitor IPF-1901

The schematics of IPF-1901 is not available because of NDA - non-disclosure agreement

between manufacturer and ALOKA.

Operation Panel L-KEY-84*

Panel Control PCB EP513200C* (for L-KEY-84B*) ···················· 5 -157

EP513200E* (for L-KEY-84C~G) ················· 5 -165

EP513200G* (for L-KEY-84H)······················ 5 -173

Panel Switch PCB EP513300EE (for L-KEY-84C~F)·················· 5 -181

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EP513300EF (for L-KEY-84G~)···················· 5 -187

Panel Menu PCB EP513400C* (for L-KEY-84C~G) ················· 5 -193

EP513400D* (for L-KEY-84H)······················ 5 -197

Physio Signal display unit PEU-ALPHA10*

PEU-ALPHA10* CABLE CONNECTION ········································ 5 -201

CABLE 601, 610, 611, 612································································· 5 -202

Independent probe connection unit EU-9110

CABLE 900 ························································································ 5 -207

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Contents of SSD-ALPHA10 SERVICE MANUAL 2/2

Section 6 TROUBLE SHOOTING

Section 7 ADJUSTMENT PROCEDURE

Section 8 PERFORMANCE CHECK

Section 9 DISASSEMBLING PROCEDURE

Section 10 PARTS LIST

Section 11 SERVICE INFORMATION

Appendix SSD-ALPHA10 SERVICE MANUALAppendix

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(Blank page)

SECTION 1

How to use this service manual

MN2-2008

SECTION 1 How to use this service manual

1 - 1

1-1 Service Manual

1. This service manual has been prepared for persons in charge of repair at the field.

2. This service manual is compiled according to the following basic principle. ”For service, pick out a

faulty PCB and replace it with a new PCB.”

3. Make the best use of this service manual, making also reference to available technical support

information such as “Technical Bulletin”.

1-2 Contents of this Service Manual

1. The equipment is repaired by PCB replacement. Therefore this service manual does not include the

circuit diagrams of the PCB unit. For the function of each PCBs whose circuit diagram is not

included, refer to ”SECTION 4 PRINCIPLE OF SYSTEM OPERATION”.

In “SECTION 4”, Specification of System, Principle of System, System Block Diagram, PCB

Block Diagram, the explanation of each PCB Block Diagram, and signal list are described.

However, “Cable Connection Diagram”, “Circuit Diagram of PCB equipped with the panel

switches which are easily exchangeable at the field” and ”Circuit Diagram composed of general

circuit such as TV monitor and Power Supply unit” are described in ”SECTION 5

SCHEMATICS”.

2. For changes and modifications of as well as additions to specifications, if any, prompt information

will be given to you by means of “APPENDIX Manual Change Information”.

#IMPORTANT# Always observe the manner specified for replacement, addition, or

deletion of “Manual Change” to prevent missing of necessary

information and keeping of erroneous information.

1-3 Construction of This Service Manual

The structure of Service Manual is as follows:

1) Service Instructions .......................................................................... SECTION 1~3, 5~9, 11

2) Principle of Operation....................................................................... SECTION 4

3) Parts List...........................................................................................SECTION 10

4) Manual Change Information............................................................. APPENDIX

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1 - 2

1-4 Contents of Each Section

SECTION 1 How to use this service manual

Describes the purpose of the Service Manual.

SECTION 2 PRECAUTIONS

Describes general precautions and preparations for maintenance service. Be sure to follow working

procedures if mentioned.

SECTION 3 BEFORE REPAIRING

Gives information peculiar to the equipment and care to be taken before starting repair work.

SECTION 4 PRINCIPLE OF SYSTEM OPERATION

Describes Specification of System, Principle of System, System Block Diagram, PCB Block diagram,

the explanation of each PCB Block Diagram, and Signal List. Gives the convenience of grasping flow

of major signals and mutual communication between units in the whole system.

SECTION 5 SCHEMATICS

Gives the cable connection diagram including all cables used, the circuit diagram of PCB equipped

with switches, and the circuit diagram of TV monitor and Power Supply unit.

SECTION 6 TROUBLESHOOTING

Describes precautions on actual repair work and shows the necessary tools and measuring instruments.

Also, includes many hints on primary diagnosis and measures to be taken in the field.

SECTION 7 ADJUSTMENT PROCEDURE

Gives guides of adjustments of PCBs and units which some PCBs need when they are replaced.

SECTION 8 PERFORMANCE CHECK

Describes the procedure of checking for proper operation after repair and provides the forms of check

sheet.

SECTION 9 DISASSEMBLING PROCEDURE

Disassembling Procedure Illustrates the disassembly and assembly of main components. Be sure to

follow working procedures if specified.

SECTION 10 PARTS LIST

Lists the mechanical parts and electrical part which replacement possibility are considered.

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SECTION 1 How to use this service manual

1 - 3

SECTION 11 SERVICE INFORMATION

Provides available information about maintenance service.

APPENDIX SERVICE MANUALAppendix

Manual change information, the revision list of this manual, is filed in this section.

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1 - 4

(Blank page)

SECTION 2

PRECAUTIONS

MN2-2008

SECTION 2 PRECAUTIONS

2 - 1

2-1Precautions Against Electrical Hazards to Serviceman

When disassembling the equipment after checking it for a trouble symptom, give care to the following:

1) Be sure to unplug the equipment before disassembly.

2) Be sure to turn off the main switch on the equipment when removing electrical parts such as PCBs,

probe, and cable.

3) Safety alert symbols

4) The indication used on this equipment and in this service manual have the following meaning

Indicates a potentially hazardous situation which, if not avoided, may result in minor or

moderate injury. ”

A caution message is inserted here. ”

2-2Precautions Against Mechanical Hazards to Serviceman

When disassembling the equipment, give care to the following to protect serviceman from hazards:

1) Keep the working environment neat.

2) Wear working gloves to protect your hands from getting injured by burrs on the unit and casing.

3) Use only proper tools suited to work being made.

4) Be sure to observe the specified disassembly procedure shown in SECTION 9.

5) Take sufficient care not to damage component with undue load.

2-3Precautions Against Germ Hazards to Serviceman

1) When it is necessary to touch the equipment, options and/or other peripheral devices at a customer

who uses intracorporeal (transesophageal, transurethral, transvaginal, transrectal) probes that need

sterilization, take special care to protect your hands against germs, irrespective of the usage of the

equipment: whether it is used in the operation room or not.

2) Service tools are subject to germ pollution in hospitals and, therefore, need periodical sterilization.

3) Be careful not to directly touch anything assumable to have germ pollution. If necessary, ask the

customer for effective protection against germs.

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SECTION 2 PRECAUTIONS

2 - 2

2-4Precautions for Keeping Electrical Safety

1) Be sure to ground the equipment securely.

2) Perfectness in grounding, screw tightening, and cover installation is essential. Negligence of it

could cause a possibility of leakage current from outer fitting which may lead to serious damage to

a patient being diagnosed.

2-5Precautions for Keeping Mechanical Safety

Take care to the following to prevent the equipment from being damaged or broken during disassembly

and reassembly work.

1) Be sure to observe the specified disassembly procedure.

2) Take care not to damage component parts by undue load.

3) Take care not to damage component parts by undue load.

4) Use only the specified screws and nuts. Using any other screws and/or nuts would affect not only

mechanical performance, but also electrical performance of the equipment.

2-6Precautions for Keeping Chemicals Safety

Whenever grease, oil or other chemicals is used for maintenance service, options and/or peripheral

devices, be sure to clean the equipment and/or devices after service work.

2-7Preparation to be Made at Service Center

1) When called by a customer on the telephone, note the followings:

# Name of equipment

# Serial number of equipment

# Name of hospital

# Telephone number

# Name of person in charge

# Detail of trouble symptom as far as possible

# State of connection to optional devices

2) Go over the “Technical Bulletin” and “Technical Notes” to see whether the complained trouble can

be mended by means of regular repairing method.

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SECTION 2 PRECAUTIONS

2 - 3

2-8Care to be Taken in the Field

1) Check for trouble symptoms.

2) Check for connection to optional devices and other peripheral devices.

3) Record the contents of the battery backup memory.

4) After working, restore the equipment according to the above mentioned contents of memory if

necessary.

5) After completion of work, put back the peripheral devices to the original condition.

2-9Precaution for Monitor repairing

1) Subjecting the unit to strong shocks may result in damage to the CRT or malfunction, therefore

care must be taken when transporting or installing the unit.

# DANGER # High voltages are present inside the display chassis. Only experienced

technicians should touch internal parts.

# DANGER # The electric charge has remained in CRT after the power switch is turned off.

Because the high voltage is usually used for CRT. So make the electric

charge escape with a grounding stick which is connected to the ground of the

chassis and through the resistance for high voltage (Approx. 1M") before

removing the anode cap.

Some electric charge remains in CRT after escaping with a grounding stick.

Do not touch the metallic part of anode cap with bare hands, when detaching

the anode cap directly.

2) CRT with the deflecting yoke is already adjusted to the best condition. Do not touch the

deflecting yoke and the magnet of the neck part.

3) Be sure to detach the metallic goods such as a wrist watch from your body before doing the repair

work.

To prevent the secondary damage and the electrical shock, the matters above should be taken into

careful consideration.

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SECTION 2 PRECAUTIONS

2 - 4

2-10 Handling of S.M.D. PCBs

It is an Aloka's policy that neither repair nor modification of PCBs used for S.M.D. is made in the field

as a rule because of the following reasons:

[REMARKS] PCB does not need repairing or modifying in the field as a rule.

When handling a PCB, do not touch the IC unless it is necessary.

IC soiled with worker’s hands may cause corrosion. Additionally, foreign particles such as fine solder

dust could be the cause of short-circuited IC lead wires whose pitch is smaller than that of the traditional

ones.

# CAUTION # When handling a PCB, avoid touching the IC and connector pins on the

devices to prevent ESD (Electro Static Discharge) damage.

A service person should preferably wear an ESD wrist strap correctly

grounded when handling a PCB.

Do not give excessively large shocks to the PCB.

When replacing the ROM (Read Only Memory) on the PCB, attempting to force the ROM into its

socket would cause the PCB to be subjected to an undue force, and the following faults may :

1) Damage to PCB intermediate-layer patterns,

2) Peeling of chip devices (resistor, capacitor, diode, etc.),

3) Damage to a junction between electrode and internal element of chip devices,

4) Peeling of patterns (especially those for mounting the parts) together with chip devices since those

patterns are rather fragile compared with PCBs used before now, and

5) Damage to parts on the reverse side in the case of PCBs of both-side mounting type.

Also, a PCB mounted improperly or a warped PCB mounted as it is may cause the chip devices to come

off and the fine patterns to be cut.

Additionally, reuse of chip devices (including resistors, capacitors, diodes, etc.) is strictly inhibited

because of the following reason:

Since the chip devices are lacking in lead wires, such as those found in the traditional component parts,

heat given to the PCB will be directly conducted to the inside of chip devices. As a result, a thermal

stress will occur due to a difference in thermal expansion coefficient between each chip device and PCB,

giving rise of the possibility of cracks inside of or on the surface of chip devices or the possibility of

thermal breaking (internal burning).

Very thin wiring patterns require extreme care in handling of the PCB.

Be sure to observe the precautions mentioned above also to prevent the secondary accidents.

MN2-2008, Rev.2

SECTION 2 PRECAUTIONS

2 - 5

2-11 System Symbols

Symbols used by Aloka are described below, together with reference to IEC publication(s).

No. Symbol Position Meaning

1

Various Places

Danger

Carefully read the pertinent items in the operation

manual, and handle the equipment with grate care.

ANSI standard Z535.3

IEC60601-1, Attached table D

BS 5378 PART1' Appendix A

2

On the side of

probe connector

Biohazard

ANSI standard Z535.3

ISO7000 No.0659

BS 5378 PART1' Appendix A

3

Left side panel

Be careful of explosion

4

Left side panel

Be careful of electric shock

ANSI standard Z535.3

BS 5378 PART1' Appendix A

5

Various places

Be careful of fire

BS 5378 PART1' Appendix A

6

Left side panel

Be careful of acoustic power

7

PEU-ALPHA10

Type BF applied part

IEC60601-1, Attached table D

8

Power switch/

Main power

supply unit

Indicates the ON position of the switch.

IEC60417-5007

9

Main power

supply unit

Indicates the OFF position of the switch.

IEC60417-5008

10

Power switch

Indicates the STAND BY position of the switch.

IEC60417-5009

11

Rear panel

Alternating current

IEC60417-5032

MN2-2008, Rev.2

SECTION 2 PRECAUTIONS

2 - 6

No. Symbol Position Meaning

12

Rear panel

Potential equalization terminal

IEC60417-5021

13

Foot switch

MP-2345B

MP-2614B

Protected against the effects of continuance immersion

in water

IEC60529

14

Various places

Electrostatic discharge (ESD) symbol(

A symbol warning of no touching to the pins cropping

out. When touching to the pins cropping out or nearing

to them, there can be of malfunction or breaking down

of the device by electrostatic discharge.

15

Monitor Arm Be careful of catching your fingers.

16

Left side panel

This mark indicates this product complies with

Directive 93/42/EEC relation to Medical Device.

17

Left side panel

WEEE Marking

EN50419

18

Left side panel

AUTHORIZED REPRESENTATIVE IN THE

EUROPEAN COMMUNITY

EN980:2003

19

Left side panel

CONSULT INSTRUCTIONS FOR USE

EN980:2003

20

Left side panel

MANUFACTURER

EN980:2003

21

Rear panel

DATE OF MANUFACTURE

ISO 15223

SECTION 3

Before Repairing

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