Toshiba Alexion Service Manual

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No. 2D201-177EN*F

SERVICE MANUAL 2

FOR

TOSHIBA SCANNER

TSX-033A

(2D201-177EN*F)

TOSHIBA MEDICAL SYSTEMS CORPORATION 2011-2013



Trademarks

MicrosoftWindows is a registered trademark of Microsoft Corporation in the United States and other countries.

Alexion is a trademark of Toshiba Medical Systems Corporation. This manual may include trademarks of other companies.

Note that the  mark and the  mark may or may not be used in this manual.

IMPORTANT!

1. No part of this manual may be copied or reprinted, in whole or in part, without prior written permission.

2. The contents of this manual are subject to change without prior notice and without legal obligation.

3. The contents of this manual are correct to the best of our knowledge. Please inform us of any ambiguous or erroneous descriptions, missing information, etc.

No. 2D201-177EN*F

REVISION RECORD

REV. DATE

(YYYY-MM)

REASON

/AUTHOR CHANGED

PAGE

SER. DOC.

No. PRODUCT.

INI. 2011-09 Mr. Tezuka ------- TM-WI2

*A 2012-03 Change of configuration of PC BOX supplied as

service part Mr. Sato

Subsections

4.5.2.11,

4.5.2.13

*B 2012-04 Support of improvement requests Mr. Tezuka Sections 2, 3

*C 2012-07 Use of GMSC PWB Mr. Oishi All pages TM-WI2G

*D 2012-08 Support of new OPCONTM PWB due to

Section 3

discontinuation of production Mr. Sawanaga

*E 2012-12 Support of EU Installer Mr. Kawanabe Subsection 2.8

*F 2013-05 Change of ADI PWB Mr. Kurihara Section 4

No. 2D201-177EN*F

THIS PAGE IS LEFT BLANK INTENTIONALLY.

No. 2D201-177EN*F

How to Use This Manual Effectively

No. 2D201-177EN*F

1. Notation Conventions

This manual uses the following conventions for word usage in addition to the signal words (refer to "General Safety Information") that indicate remarks related to safety precautions. Carefully read the contents of this manual before performing service work.

NOTE: Indicates information of interest to users of equipment as to exceptional

conditions or operating procedures.

2. Organization of the Service Manuals

The following 2 volumes are provided as service manuals for the Alexion system (TSX-033A).

Service manual organization

Alexion service manuals

Service manual 1 (2D201-176EN)

Service manual 2 (2D201-177EN)

Configuration of the gantry

Mechanical section of the patient couch

Gantry/couch control section

X-ray system

Data acquisition section

Data transmission unit

Console

Power distributor

No. 2D201-177EN*F

Table of Contents

How to Use This Manual Effectively .................................................................. 5

General Safety Information .................................................................................... 13

1. THE X-RAY SYSTEM ................................................................ 21

1.1 Configuration ............................................................................................... 22

1.2 Specifications .............................................................................................. 22

1.3 Principles of Operation ........................................................................ 23

1.4 Operation Method ..................................................................................... 24

1.4.1 Turning ON/OFF the power supply ......................................................... 24

1.4.2 Single unit exposures ................................................................................... 24

1.5 X-ray High-Voltage Generator ......................................................... 25

1.5.1 Composition ...................................................................................................... 25

1.5.2 Operating principle ........................................................................................ 26

1.5.3 Operating principle of the AC/CONTROL section ............................. 27

1.5.4 Operating principle of the INV/HV section ........................................... 28

1.6 Outline of the X-ray Tube System ................................................ 30

1.6.1 Configuration .................................................................................................... 30

1.6.2 Specifications ................................................................................................... 30

1.7 Overload Protection (OLP) Management Functions ...... 32

1.7.1 Functional description .................................................................................. 32

1.7.2 Calculation and monitoring of the anode heat capacity ................ 32

1.7.3 Short-term monitoring of the rating ........................................................ 32

1.7.4 Short-term monitoring of the nominal rating ...................................... 33

1.8 Tools and Instruments .......................................................................... 34

No. 2D201-177EN*F

1.9 Notices .............................................................................................................. 35

1.9.1 Floating section ............................................................................................... 35

1.9.2 Power cable ....................................................................................................... 35

1.9.3 Precautions for rotation ............................................................................... 36

1.9.4 Handling the high-voltage cable .............................................................. 37

1.9.5 Replacing the fuse ......................................................................................... 40

1.9.6 Using the tube voltage meter .................................................................... 40

1.9.7 Tube ammeter .................................................................................................. 41

1.9.8 Other ..................................................................................................................... 42

1.10 Replacing the X-ray Tube ................................................................... 43

1.10.1 Connection and operation check ............................................................. 43

1.10.2 X-ray tube aging .............................................................................................. 46

1.10.3 If adjustment ..................................................................................................... 47

1.11 Troubleshooting ........................................................................................ 61

1.11.1 X-ray high-voltage generator troubleshooting ................................... 61

1.11.2 Troubleshooting flowchart for main circuit ......................................... 68

1.11.3 X-ray tube troubleshooting ......................................................................... 78

1.11.4 XC error log reference procedures ......................................................... 81

2. DATA ACQUISITION SECTION ................................... 87

2.1 Introduction ................................................................................................... 88

2.2 Configuration ............................................................................................... 88

2.2.1 Components ...................................................................................................... 88

2.2.2 Configuration table ........................................................................................ 89

2.2.3 Layout drawing ................................................................................................ 90

2.3 Overall Operation ...................................................................................... 91

No. 2D201-177EN*F

2.4 Main Detector ............................................................................................... 92

2.5 REF Detector ................................................................................................ 93

2.5.1 Connections between the main detector, the REF detector,

and the DAS ...................................................................................................... 93

2.5.2 Correspondence between the main detector channels

and the DAS channels .................................................................................. 94

2.6 DAS ................................................................................................................... 103

2.6.1 T-CONVERTER PWB ................................................................................... 103

2.6.2 T-CONTROL PWB ......................................................................................... 103

2.7 DAS Power Supply ................................................................................ 124

2.7.1 5.7 V power supply .................................................................................... 124

2.7.2 3.3 V power supply .................................................................................... 125

2.7.3 24 V power supply ...................................................................................... 125

2.8 Identifying Problems ............................................................................ 126

2.8.1 Notices on work ............................................................................................. 126

2.8.2 Tools and instruments................................................................................ 126

2.8.3 Possible problems and troubleshooting ............................................ 127

2.8.4 DAS integrator-dependent abnormality .............................................. 132

2.8.5 DAS gain-dependent abnormality .......................................................... 132

2.8.6 Slice thickness-dependent abnormalities .......................................... 132

2.8.7 Check of the DAS supply voltage .......................................................... 133

2.9 Repair .............................................................................................................. 133

2.9.1 Before repair ................................................................................................... 133

2.9.2 Replacement of the DAS PWB (Removing and remounting a

PWB) ................................................................................................................... 134

2.9.3 Replacement of the main detector ........................................................ 136

2.9.4 Replacement of the REF detector .......................................................... 141

2.9.5 Setting after replacing the temperature controller ......................... 144

No. 2D201-177EN*F

3. DATA TRANSMISSION UNIT ....................................... 151

3.1 Introduction ................................................................................................. 152

3.2 Beam Emitting/Receiving Section (MUDAT) ...................... 154

3.2.1 Functions of the MUDAT ........................................................................... 154

3.2.2 Composition .................................................................................................... 154

3.2.3 External view .................................................................................................. 159

3.2.4 System diagram and operating principle ........................................... 161

3.3 IF Unit (Interface Unit) [OPCONTM, GCIFM] ....................... 163

3.3.1 Functions of the IF unit .............................................................................. 163

3.3.2 Operating principle ...................................................................................... 163

3.3.3 External appearance .................................................................................... 169

3.4 LED Display and Switch Setting .................................................. 170

3.4.1 OPCONTM PWB ............................................................................................. 170

3.4.2 GCIFM PWB ..................................................................................................... 179

3.5 Installing the CPU Data for the OPCONTM PWB ............. 188

3.5.1 Tools and equipment used ....................................................................... 188

3.5.2 Preparation ...................................................................................................... 188

3.5.3 Installation of the PWB data ..................................................................... 190

3.5.4 Changing the data version identification label ................................ 192

3.6 Troubleshooting ...................................................................................... 194

3.6.1 Malfunction of the data transmission section .................................. 194

3.6.2 Malfunction of control system data communication ..................... 194

3.6.3 Malfunction of DAS data communication ........................................... 199

3.6.4 Procedure for checking the luminescence ........................................ 210

3.6.5 Procedure for disassembling the MUDAT .......................................... 214

3.6.6 Operation check after MUDAT work ..................................................... 215

No. 2D201-177EN*F

4. CONSOLE .............................................................................................. 217

4.1 Outline ............................................................................................................. 218

4.1.1 The configuration of the console ........................................................... 218

4.1.2 Internal configuration of the Navibox .................................................. 219

4.1.3 Components of the Navibox .................................................................... 220

4.2 Power Supply, Signals, and Connection Diagrams

4.2.1 Power system connection diagram ...................................................... 221

4.2.2 Signal system connection diagram ...................................................... 222

....................................................................................................... 221

4.3 Power Controller ..................................................................................... 223

4.3.1 External appearance of the power CONT ........................................... 223

4.3.2 Setting the DIP switches of the power CONT ................................... 224

4.3.3 Connection diagram of the power CONT ............................................ 225

4.3.4 Power control ................................................................................................. 226

4.4 Operation Section .................................................................................. 228

4.4.1 Configuration .................................................................................................. 228

4.4.2 Monitor .............................................................................................................. 229

4.4.3 Keyboard .......................................................................................................... 229

4.4.4 Mouse ................................................................................................................ 231

4.5 System/Acquisition Section (Navibox) ................................... 232

4.5.1 Configuration .................................................................................................. 232

4.5.2 PC BOX ............................................................................................................. 233

4.5.3 ADI PWB ........................................................................................................... 254

4.5.4 Multi drive ........................................................................................................ 257

4.5.5 USB port (for option license installation) ........................................... 257

4.5.6 System disk, image disk, and raw data disk ..................................... 258

No. 2D201-177EN*F

4.5.7 HUB ..................................................................................................................... 261

4.6 Malfunction Diagnosis Program .................................................. 264

4.6.1 Malfunction diagnosis program (hwtest) ............................................ 264

4.6.2 Malfunction diagnosis program (hwtest) menus and details of

each test ........................................................................................................... 266

4.6.3 Executing the independent test program (diag) .............................. 267

4.6.4 Independent test program (diag) execution results ...................... 268

4.7 Signal Tables (External Cables) ................................................... 272

5. POWER DISTRIBUTOR ....................................................... 281

5.1 Functions ...................................................................................................... 282

5.2 Cable Connection ................................................................................... 284

5.3 Settings .......................................................................................................... 285

5.4 Use ..................................................................................................................... 286

5.5 Replacing the Fuse ................................................................................ 286

No. 2D201-177EN*F

General Safety Information

No. 2D201-177EN*F

1. Meaning of Signal Words

In this manual, the signal words DANGER, WARNING, and CAUTION are used regarding important safety instructions. The signal words and their meanings are defined as follows. Please understand their meanings clearly before reading this manual.

Signal word Meaning

DANGER

WARNING

CAUTION

Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

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

Indicates a potentially hazardous situation which, if not avoided, may result in property damage.

No. 2D201-177EN*F

2. Safety Precautions

Please observe the following precautions to ensure the safety of the service engineer as well as operators when servicing this equipment.

DANGER: 1. This system is not explosion-proof. Therefore, do not use

flammable or explosive gases near the system. If flammable or explosive gases enter the system, a fire or explosion may occur.

2. Do not remove the covers of the console monitor and X-ray high-

voltage generator in the gantry because there are high-voltage sections inside them. If the covers are removed, accidental contact may occur, causing electric shock and possibly death.

When it is necessary to connect measuring instruments such as

an oscilloscope to a circuit of the floating section for any reason, be sure to observe the following precautions.

 Use a differential probe or isolation probe.

 Do not leave the probe cable dangling when the probe is

connected to the measuring point. Doing so may cause shock or short-circuit with the exposed GND section of the connector.

 When several measuring points are monitored simultaneously

using an oscilloscope, note that the ground levels of the probes become common.

3. If it is necessary to rotate the gantry with the cover open, take

special precautions to ensure that persons are not accidentally caught in the rotation section.

4. When disconnecting the high-voltage cable, observe the following

to fully discharge its residual charge in order to ensure safety during servicing work.

 Turn power OFF and wait 10 minutes or more.

 When the high-voltage cable has been disconnected,

simultaneously ground two of the three pins at the top of the bushing in all three combinations. Repeat all combinations twice or more.

 Do not touch the top of the bushing.

 Place a cap, vinyl cover, etc. over the tip of the bushing to

protect it.

5. When it is necessary to touch the slip ring or brushes (for

example, to clean the slip ring or to replace the slip ring brushes), turn OFF all the breakers on the distribution board in advance. Otherwise, an electric shock will result.

No. 2D201-177EN*F

DANGER: 6. Gantry rotation may continue even if an eXam Plan is interrupted.

Particularly when servicing work (phantom replacement etc.) is performed with the gantry cover open, observe the following.

 Be sure to terminate the eXam Plan and confirm that rotation of

the rotation section has stopped.

 Turn OFF CP320 (power to the rotation servo motor).

7. Do not remove the covers of the console monitor and X-ray high-

voltage generator in the gantry because there are high-voltage sections inside them. If the covers are removed, accidental contact may occur, causing electric shock and possibly death.

WARNING: 1. Before starting service procedures, turn OFF the breaker and all

the system power switches on the distribution board. (To ensure safety.)

2. Make sure that ground cables are securely connected for

electrical shock prevention and stable system operation.

3. The system employs a laser beam device. Do not look directly

into the laser beam, as doing so could injure your eyes.

4. After opening the gantry front cover, support the cover with two

supporting poles to the rear of the cover. Use the supporting poles correctly. If the supporting poles are used incorrectly or the cover is lifted inadvertently, the supporting poles may fall causing the cover to close suddenly due to its weight, resulting in injury.

5. Since the rotation section of gantry may rotate suddenly,

carefully install the CT scanner. (For example, when console is changed to "eXam Plan" during operation or a short-circuit is caused by any part being touched with the probe of the measuring instrument.)

6. If a part of the rotation section of gantry is to be removed, be

sure to engage the rotation lock pin of the rotation drive section. Otherwise, the rotation section may rotate suddenly due to the weight imbalance caused by removal of the part, and a worker may get caught in the rotation section and be seriously injured as a result. Hold the rotation section firmly when pulling out the rotation lock pin.

7. After completing the work, be sure to confirm that all mounting

screws of the cover are tightened firmly. If the gantry is tilted with the screws not tightened firmly, the cover may open, fall, or interfere with objects around it, leading to injury or damage.

No. 2D201-177EN*F

CAUTION: 1. Do not modify or repair the system without permission.

Failure to do so may result in system malfunction or incorrect system operation.

2. When repair or replacement work must be temporarily interrupted,

take appropriate measures such as closing the covers etc. to ensure safety.

3. Connecting or using any device in combination may cause the

system to operate unstably or dangerously.

4. Make sure that the power supply, frequency, voltage and voltage

fluctuation values conform to the specifications of the system.

5. Make sure that all cable connectors are connected correctly and

that the cables and oil hoses are arranged properly.

6. Make sure that no cooling oil leaks.

7. Before starting X-ray exposure, check whether the necessary

protective measures have been taken, so that the door is closed, no persons or X-ray sensitive materials such as film are in the scanner room, and X-rays do not leak from the scanner room.

8. When tilting the gantry, never place your foot on the stand base

cover. Your foot may be caught, resulting in injury.

9. When replacing the X-ray tube, observe the following precautions.

 Be careful about the tube because the tube may move

longitudinally during this work.

 Insert the rotation lock pin into the rotation lock pin retaining

plate securely.

10. Take precautions against electric shock because power is supplied

up to the input terminal of MC113 in the servo unit even when the circuit protector CP1 of the gantry stationary section is turned OFF.

11. Disconnect CN451 of the KGTSM (GMSC) PWB to turn OFF the

power of tilt motor, rotation servo system, couch etc. If the safety circuit is defective or if your operation was incorrect, the tilt, rotation motor or couch may move.

12. Do not perform high-speed rotation while the SOT mounting plate is

removed. Interference may occur or cables may be caught in the rotation section. (Note that this precaution does not need to be observed when all four SOT mounting plates are removed.)

No. 2D201-177EN*F

CAUTION: 1. Keep the site room at proper temperature and humidity, and well ventilated.

Keep the system protected from unnecessary vibration or shock.

2. When cleaning or disinfecting the system, take care not to damage the system.

* Use only the specified disinfectants and lubricants in the specified manner

and frequency. Failure to do so may result in discoloration or cracking of the surface finish, or in damage to rubber or plastic parts.

* Do not clean the unit with organic solvents (such as paint thinner) or

abrasive cleansers because they may cause damage or discoloration.

3. When the gantry is to be tilted with the front cover open, be extremely careful

not to allow the front cover to come into contact with the ceiling or the patient couch. Otherwise, the system may be damaged.

4. Never pull the cable when disconnecting the connector. Doing so may damage

the cable.

5. When removing the dome cover, be sure to disconnect the connectors located

at the top of the gantry. Otherwise, cables may be severed.

6. When connecting the cables of the starter at the time of replacing the X-ray

tube, be sure to refer to the circuit diagrams and check the marker placed on the cable to perform correct cable connection. Incorrect connection may cause damage to the anode rotation mechanism.

7. Do not bend the belt as it contains fiber. The belt will not function normally if

bent.

8. Do not apply an excessive force to the brake release lever when installing the

brake release lever handle. The brake release lever may be damaged.

9. Be extremely careful when handing the hydraulic hose. The hydraulic hose is

very fragile (minimum permissible bending radius: 45 mm). If the hose is bent, it will be permanently damaged and can no longer be used.

10. Do not perform ON/OFF operation of SW320 during gantry rotation. Doing so

may damage the servo-amplifier. To turn OFF the power, use CP320.

11. Do not perform continuous scanning (that is, a set of start and stop operations

performed consecutively) more than ten times. Doing so may damage the servo-amplifier. If repetitions of continuous scanning are required, stop for two minutes after scanning is performed ten times.

12. When mounting/removing the bushing to/from the X-ray tube receptacle, do not

remove the bushing suddenly or rotate the cable. Doing so may damage the pin section on the tip of the bushing.

13. When performing wiring again, do not bundle the power cable with the signal

cables.

14. When adjusting the XC maintenance program parameters, do not change the

settings for parameters other than If. Doing so may damage the generator.

No. 2D201-177EN*F

3. Precautions for Service Work

Countermeasures against static electricity

If service work is performed at sites at which countermeasures against static electricity are not taken, be sure to take countermeasures against static electricity to prevent the PWBs from being damaged and to ensure quality.

[Examples]

 When performing service work such as replacement of PWBs, be sure to wear a wrist

strap.

 If PWBs must be put down somewhere, they must be placed on an antistatic mat.

NOTE: Periodic inspection

Be sure to perform periodic inspection to confirm that appropriate countermeasures against static electricity are being taken (the antistatic mechanism functions normally). (Perform continuity check.)

Manufacturer : Sumitomo 3M, Inc.

Model name : 8012J

Product name : Conductive plastic product portable field service kit

Items contained : Antistatic mat ············ 1

Wrist strap ················ 1

4.5-m ground cable ····· 1

No. 2D201-177EN*F

CHAPTER 1

THE X-RAY SYSTEM

No. 2D201-177EN*F

1.1 Configuration

The X-ray system comprises the following components:

Component Model Features

X-ray high-voltage generator

X-ray tube CXB-200E Anode heat capacity: 2000 kHU,

CXB-350A/2A Anode heat capacity: 3500 kHU,

1.2 Specifications

The specifications of the X-ray system are given below:

Item Specifications

Radiation method Continuous

Tube voltage

Tube current 10 to 300 mA*1

Radiation time Differs according to the direction from the central system.

80, 100, 120, or 135 kV (3%)

10-mA increments (3-mA increments up to 5%)

(0 to 100 s: 5%)

CXXG-010A/3 Incorporates the control circuit, high-

frequency inverter.

Maximum output of 36 kW line voltage of 200 V or more)

made by Varian

(42 kW at a

Focus 2 focuses

Anode rotation 2700 min-1 to 3600 min-1 (depending on line frequency).

Power required 3-phase, 200 VAC, 50/60 Hz

Voltage fluctuation Less than 10% (including -5% fluctuation under load)

*1 The maximum output value and the maximum tube current depend on the system

output limit. For 16-kW systems, the maximum output value is 16 kW and the maximum tube current is 200 mA.

No. 2D201-177EN*F

1.3 Principles of Operation

The block diagram of the X-ray system is shown below.

System communication

Interlock

Control from outside

Tube voltage feedback

Tube current feedback

OLP management

Operation control

Door switch External lamp Slice counter

Inverter feedback control

Filament feedback control

High-voltage tank

Rotor control

To each transformer

Inverter driver

Filament heating circuit

Filament transformer

3-phase, 200 VAC, 50/60 Hz

Line noise filter

Rectification

Smoothing

Inverter

High-voltage transformer

Rectification

X-ray tube

Cooling unit

Block diagram of the X-ray system

FilamentStator coil

Anode and cathode

No. 2D201-177EN*F

1.4 Operation Method

Switching of the power supply, the control method as a single unit, and the operating conditions are explained.

1.4.1 Turning ON/OFF the power supply

Turning ON the power supply

Turn ON the power supply of the system (console) according to the normal procedure.

Turning OFF the power supply

Turn OFF the power supply of the system (console).

*1: The power-ON status may continue for a certain period depending on the DAS

timer setting.

1.4.2 Single unit exposures

Select "DCA test" or "If Remote" from the system maintenance menu at the console side.

The power is supplied to the gantry, and the X-ray high-voltage section starts changing the smoothing capacitor. The main relay is turned on in about 6 seconds, charging is completed, and the system becomes ready for operation.

The main relay are turned off and electric discharge of the smoothing capacitor begins. When heat build-up of the X-ray tube is high, the gantry power supply maintains its energized state for cooling. When the required cooling time elapses, the power supply will go off automatically.

No. 2D201-177EN*F

1.5 X-ray High-Voltage Generator

1.5.1 Composition

The configuration of the X-ray high-voltage generator is shown below.

(1) AC/CONTROL section

(2) INV/HV section

(3) Interconnecting cables

X-ray high-voltage generator

No. 2D201-177EN*F

1.5.2 Operating principle

A three-phase power supply is connected to the AC/CONTROL section. The input range is from 170 to 230 VAC. The XCS PWB installed in the AC/CONTROL section functions as an interface with the system. The AC/CONTROL section outputs approximately 300 VDC. This DC voltage is supplied to the INVERTER/HV section. The DC voltage is used to supply power to the inverter and the filament circuit. The output cable of the INVERTER/HV section is connected to the X-ray tube via the two Federal Standard X-ray connectors. The output cable from the cathode is also connected to the floating filament of the X-ray tube.

DANGER: Before disconnecting cables or

removing covers, wait for at least 5 minutes after turning OFF the power supply. Failure to observe this warning may result in serious injury or death.

The AC/CONTROL and INVERTER/HV sections contain some

parts that are not insulated. A dangerous voltage may be present even if the contactor is OFF.

No. 2D201-177EN*F

1.5.3 Operating principle of the AC/CONTROL section

The AC/CONTROL section supplies the required direct current power to the inverter circuit. The AC/CONTROL section consists of three main subassemblies (chassis assembly, system control PWB, and AC PWB). Its input is connected to the K1 contactor, the CR1 rectifier, and the DC output connector. The K1 contactor performs failsafe shutdown of the voltage in the major sections.

(1) AC PWB

The AC PWB has a filtering function, a soft start circuit function, and a monitoring function. If a voltage of more than 75 VDC is present in the AC PWB, display is performed with neon tube DS1.

(2) System control PWB

The system control PWB has an inverter control function, a kV and mA monitoring function, and an error detection function.

The LED indicator locally displays the status of the generator.

POWER ON : Indicates that +5 V power supply is present in the

system control PWB.

TEST MODE : Indicates that switch SW1 is in test mode.

FAULT (problem) : Indicates that the generator is in error mode. Detailed

data concerning the error is provided by digital I/O.

HV ON (high-voltage ON) : Indicates that a high voltage (more than 10 kV) is

present in the output from the generator.

SPARE : This is mainly used for repair at the factory. This

indicates the phase mode of the inverter. The display "LED on" indicates outside the phase mode.

FIL ON (filament ON) : Indicates that the filament is ON.

STARTER ON : Indicates that the starter is ON. (Not used)

CONTACTOR ON : Indicates that the contactor is ON.

No. 2D201-177EN*F

1.5.4 Operating principle of the INV/HV section

The INV/HV section is a DC-DC converter that consists of three main assemblies: the inverter assembly, the high-voltage multiplier, and the high-voltage transformer.

DC input is applied to the resonance inverter. The inverter operates in phase mode and frequency mode. The maximum operating frequency of the inverter is approximately 30 kHz. The output of the step-up transformer is approximately 5 kV Pk AC. This is supplied to the two half-wave multipliers. These multipliers comprise a double-voltage rectification circuit. The input voltage is sequentially doubled by the serially connected multipliers.

The rated output of the multiplier is a DC voltage of ±70 kV. This is supplied to the X-ray tube. The INV/HV section is connected to the AC/CONTROL section via the control cable and the DC power cable.

(1) Inverter assembly/inverter PWB

The inverter assembly contains the inverter heat sink, the cooling fan, the DC input connection section, the IGBT, and the inverter PWB.

WARNING: The gate drive circuit and the IGBT inverter circuit are high-

voltage circuits. Do not perform repair or maintenance work on these circuits and do not attempt to measure these circuits using a probe. If it is necessary to touch them, be sure to first check that there is no DC voltage relative to earth (chassis) using a tester or equivalent device.

NOTE: No calibration is required on site. The generator can be repaired without

performing recalibration. The inverter assembly and the high-voltage module are components that cannot be replaced on site. Calibration of the highvoltage module is performed by the inverter PWB. Therefore, the high-voltage module and the inverter PWB cannot be replaced individually.

If a power supply of more than 75 VDC is present in the inverter PWB, the neon tube lights.

(2) High-voltage module

This high-voltage module contains the high-voltage multiplier, the high-voltage feedback divider, the filament transformer, and the anode/cathode connectors. The high-voltage module is fully encapsulated. As described in the previous subsection, the high-voltage module is not replaceable on site.

No. 2D201-177EN*F

(3) XCS PWB

PX71-07786 Gr.2

Part Name XCS2

PWB No. YWM1634

ROM No. C10051-XX

Connection diagram 3XW71-1848

Mounting position Within the AC/CONTROL section

Functions

Communication control Y

Output of basic control signals Y

Monitoring of internal status Y

Selection of output voltage and

current

Tube current modulation control Y

(Sure Exposure, Sure Exposure 3D (XY modulation)

)

Control of OLP Y

Holding of power supply for

cooling the X-ray tube

Backup of the basic information

memory

Control of the slice counter Y

Control of the dedicated starter Y

*1: Sure Exposure 3D is enabled only when a system supporting this function is

used in combination.

No. 2D201-177EN*F

1.6 Outline of the X-ray Tube System

This subsection describes the configuration and specifications of the X-ray tube system.

1.6.1 Configuration

The X-ray tube system comprises the X-ray tube unit and the heat exchanger, which are connected via the cooling oil circulating hose. The X-ray tube is mounted on the gantry rotation section. They cannot be separated because of air-tight structure.

Hose

1.6.2 Specifications

Model

Anode heat capacity (kHU) 2000 3500

Anode cooling rate (kHU/min) (maximum)

Maximum tube voltage (kV) 150 140

Dimensions of the focus (mm) (Pinhole method)

(Slit method)

X-ray tube mass (kg) Approx. 33 Approx. 34

Heat exchanger mass (kg) Approx. 17 Approx. 17

X-ray tube unit

CXB-200E,

Varian GS-2078/A

252 285

Small: 0.9  0.9 Large: 1.5  1.0

Small: 1.1  1.3 Large: 1.7  1.7

Heart exchanger

CXB-350A/2A

Varian GS-3078/A

Small: 0.9  0.9 Large: 1.5  1.0

Small: 1.1  1.1 Large: 1.7  1.7

No. 2D201-177EN*F

100

Varian 2000/3500 kHU tube, OLP=100%

CXB-350A/2A

CXB-200E

60565248444036322824201612840

min.

Cooling curve

No. 2D201-177EN*F

1.7 Overload Protection (OLP) Management Functions

This subsection outlines the overload protection (OLP) management functions of the X-ray tube system.

1.7.1 Functional description

The X-ray tube system supports the OLP management functions for:

(1) Calculation and monitoring of the anode heat capacity for protection

(2) Short-term monitoring of the rating for protection of the focus

(3) Short-term monitoring of the nominal rating for protection of the focus

Items (1) to (3) are calculated continuously to check the required radiation conditions. If the radiation conditions exceed the calculated OLP, the system is notified and radiation is halted. These three items are calculated, managed, and controlled by the XCS PWB micro-computer. The following subsections give details of items (1) to (3).

1.7.2 Calculation and monitoring of the anode heat capacity

The function is used to protect the anode from overheating. The current anode heat capacity is calculated from the cooling curve data of the X-ray tube stored in memory, the anode heat capacity value obtained during the last exposure, and the elapsed time after radiation. The anode capacity is calculated when the currently required radiation conditions are used, and is compared with the calculated limit. If the calculated anode capacity exceeds the limit, the required waiting time is calculated and communicated to the system, and SET UP processing is inhibited. The anode heat capacity and time are retained in memory when the power is turned OFF. The residual heat capacity is calculated from backup data and is used as the initial value of the anode heat capacity when the power is turned ON.

1.7.3 Short-term monitoring of the rating

This function is used to protect the focus from overheating during continuous radiation. The radiation limit is obtained from the radiation conditions required from the data concerning "output vs continuous radiation limit" stored in memory. If the required radiation time exceeds the limit in REMOTE mode, the required radiation conditions are assumed to be invalid and the system returns a negative response.

No. 2D201-177EN*F

1.7.4 Short-term monitoring of the nominal rating

This function is used to protect the focus from overheating during continuous radiation and is applied to a radiation time of less than 5 seconds using the same kV and mA. When kV and mA are set, the cumulative limit is obtained during repeated exposures from memory data. If the next exposure is performed less than 5 seconds after the previous exposure, the cumulative radiation time is added. If the elapsed time after the previous exposure is 5 seconds or more, the cumulative time is cleared.

When "cumulative time + required radiation time" exceeds the cumulative limit less than 5 seconds after the previous exposure, the residual time is calculated for communication with the system. During this period SET UP processing is inhibited.

(Example)

5 seconds or more

3 seconds

5 seconds or more

3 seconds 3 seconds 3 seconds 3 seconds

Less than 5 seconds

Short-term monitoring of the nominal rating

Scan A calculated during a radiation time of 3 seconds Scan B calculated during a radiation time of 3 seconds Scan C calculated during a radiation time of 6 seconds Scan D calculated during a radiation time of 9 seconds Scan E calculated during a radiation time of 12 seconds

5 seconds or more

No. 2D201-177EN*F

1.8 Tools and Instruments

The table below shows tools and measuring instruments required for installation, check, adjustment, and repair of the X-ray system.

Tools and instruments for the X-ray system

Instal-

lation

(1) Tube voltmeter

(2) Tube ammeter

(3) Digital storage-type

Check and adjustment

 

Repair Remarks

oscilloscope

(4) Torque wrench

(5) Tube voltmeter

(6) Silicone plate

(7) Silicone compound

(8) Absolute alcohol

(9) Toothbrush

 

kV-201 or kV-201D (manufactured by ARCO Electric)

MA-1201D (manufactured by ARCO Electric)

For fixing the high-voltage cable

For fastening the resonance capacitor terminal

AB-201515D (manufactured by TOREK)

BSX71-0752E*4

TOSLUBE 42 TSK5542 (AZP393-01) or one provided with the Varian X-ray tube

Used for cleaning

Used to apply the silicone compound coating to the inner wall of the receptacle

(10) Torque driver

*1: The MA-1201 is not used because the waveform at a neutral point contains a large

amount of high-frequency ripple, which makes measurement less precise.

*2: Also used for adjustment of tube currents (set-up) and waveform checks.

*3: Used instead of the tube voltmeter (1) and the tube ammeter (2).

*4: Silicone plate and silicone oil to be used for the CLAYMOUNT high-voltage cable

 

KANON 20LTDK

No. 2D201-177EN*F

1.9 Notices

This section describes important safety and protection notices pertaining to work on the X-ray system.

1.9.1 Floating section

The power supply circuit of the X-ray high-voltage generator is not insulated from the power supply. If you should touch areas other than the designated spots or connect measuring instruments, take adequate precautions against electrical shocks and short circuits.

1.9.2 Power cable

When disconnecting the power cable, first unplug it from the power distribution board. If the power cable is unplugged at the other side, it is very dangerous if the power is turned ON.

Always disconnect the grounding wire last.

When connecting the power cable, first connect the grounding wire, connect the other wires to the device, then connect the wires to the power distribution board.

Handling the power cable

Device

Do not leave the device with the end of the cable open.

No. 2D201-177EN*F

1.9.3 Precautions for rotation

As the X-ray high-voltage generator is mounted in the gantry rotation section, make sure that no worker is caught in the rotation section during maintenance.

DANGER: 1. When servicing is to be performed with the gantry cover

open, be sure to turn OFF the power of the system at the distribution board and wait for 5 minutes or more to prevent workers from receiving electric shocks or being injured due to unexpected system operations.

2. If it is necessary to perform servicing with the system turned ON, supply power only to the required parts. At the same time, take safety measures such as turning OFF the power of the cover switch and CP320 (power to the rotation servo motor).

WARNING: When disconnecting the cables, take note to ensure correct

reconnection. In particular, inappropriate routing of the power cable will cause interface with other cables, which may adversely affect system performance.

CAUTION: When rotating the rotation section manually, be sure to release the brake

before rotating the rotation section. Rotating the rotation section without releasing the brake may result in system malfunction.

When the power of the gantry is turned OFF, the brake of the rotation section is engaged. To rotate the rotation section to the desired position, follow the specified procedures.

No. 2D201-177EN*F

1.9.4 Handling the high-voltage cable

This subsection describes the handling of the X-ray tube and the INV/HV bushing section, and the procedure for replacing the silicone plate.

DANGER: When disconnecting the

high-voltage cable, observe the following to fully discharge its residual charge in order to ensure safety during servicing work.

 Turn power OFF and wait 10 minutes or more.

 When the high-voltage cable has been disconnected,

simultaneously ground two of the three pins at the top of the bushing in all three combinations. Repeat all combinations twice or more.

 Do not touch the top of the bushing.

 Place a cap, vinyl cover, etc. over the tip of the bushing to

protect it.

1.9.4.1 Removing the high-voltage cable

(1) Wait 10 minutes or longer after the power is turned OFF, then start this procedure.

(2) Remove the cable from the high-voltage transformer side first and then on the

X-ray tube side. If only the cable from the X-ray tube needs to be disconnected for X-ray tube replacement, etc., be sure to perform the discharge procedures described in step (4) below before touching the tip of the electrode.

(3) When removing the high-voltage cable, loosen the setscrews and flange and hold

up the rim of the bushing with a bladed screwdriver. Remove the bushing after the electrode is removed. Never extract the bushing by pulling on the cable.

Lift

Correct

Incorrect

No. 2D201-177EN*F

(4) After pulling out the bushing, short each of the three pins at the top of the electrode

to the grounded chassis. Repeat this procedure at least twice. Then, short every combination of two pins among the three pins at the end of the bushing. Use a screwdriver for shorting. Short each of the three pairs two or more times.

Be sure to short the pins as described above because a high voltage may remain.

(5) Remove both ends on the anode and cathode sides.

1.9.4.2 Cleaning

(1) Prepare a new silicone plate and clean it with absolute alcohol.

When no absolute alcohol is available, wipe the plate thoroughly with a clean cloth. Replace the used silicone plate with a new one. If there are any discharge stains which cannot be removed from the silicone plate, it must be replaced. Stains may cause defects such as discharge.

Clean the pins so that any metal powder or dust is completely removed.

(2) Also clean inside the receptacle. Be sure to remove dust around the inner

electrode.

1.9.4.3 Applying silicone oil (CLAYMOUNT high-voltage cable)

(1) Clean the high-voltage cable plug, the inside of the socket in the X-ray tube, and

the silicone plate with absolute alcohol.

(2) Place the ring nut at the base of the plug by passing the plug through the ring nut.

Attach the supplied polarity labels ((+) and (-)) to the cable.

(3) Mount the partition flange on the ring flange of the high-voltage cable with screws.

(4) Apply silicone oil to the rubber gasket and place it at the ring flange by passing the

plug through it.

(5) Apply silicone oil to both sides of the silicone plate and attach it to the tip of the

plug.

The purpose of applying silicone oil is to smoothen and moisturize the surface of the silicone plate, enabling closer contact. A small amount of silicone oil should be applied and spread evenly.

Silicone oil need not be applied to the side of the plug. Note that silicone grease (Toslube) must not be used. If it is applied, contact with the silicone plate will be poor, possibly leading to a deterioration in the withstand voltage.

(6) Insert the plug with the silicone plate into the socket to make the connection. Then

tighten the ring nut.

Note: To achieve close contact with the silicone plate, firmly tighten the ring nut.

(7) Tighten the setscrew of the ring nut. Use a hexagonal wrench for M3 setscrews.

No. 2D201-177EN*F

Screw (2 locations)

Rubber gasket

Silicone plate

Plug

Ring flange

Partition flange

Sleeve

Polarity label

Setscrew

Ring nut

Cable

Silicone oil

The surfaces must be in close contact.

(8) Be sure to tighten the screws again after X-ray tube seasoning is completed,

because the screws may become loose when the X-ray tube is heated and then cooled. Also, perform additional tightening at the time of inspection.

No. 2D201-177EN*F

1.9.5 Replacing the fuse

When replacing the fuse, be sure to use a fuse with the same rating and type specified.

WARNING: For continued protection against

risk of fire, replace only with same type and rating fuse.

1.9.6 Using the tube voltage meter

Prepare a high-voltage bleeder (Arco Electrical Machinery kV-201 or equivalent), and connect between the high-voltage unit and the X-ray tube as shown in the figure below. For details, refer to the operation manual of the tube voltage meter. Set FUNCTION to INT.DELAY TIME 10. (The tube voltage after 0.1 s is displayed.)

High-voltage transformer

When a Torek AB-201515D is used, perform the same connection.

High-voltage cables of the system

Signal cable

kVp meter

Connection of the tube voltage meter

High-voltage cables provided with the kV-201

Oscilloscope

Tube voltage waveform check

TubeBleeder

With the Torek AB-201515D, the tube voltage and the tube current can be measured concurrently.

No. 2D201-177EN*F

1.9.7 Tube ammeter

Connect a tube ammeter (MA-1201D manufactured by ARCO or equivalent) between the anode of the high-voltage transformer and the anode of the X-ray tube. Set FUNCTION to RAD.DELAY TIME 4X10. (The tube current is displayed after a delay of

0.4 seconds.)

The measured value is the current on the anode side. The method for calculating the tube current for the cathode side differs depending on the tube used as described below.

High-voltage transformer (built into the X-ray high-voltage generator)

Tube ammeter detector tank

Transformer side

Tube side

X-ray tube

Connection of the tube ammeter

 For the CXB-350A and CXB-200E

Tube current (on cathode) =

Reading of the MA-1201D (anode-side tube current)

Ammeter (mA)

0.88

No. 2D201-177EN*F

1.9.8 Other

(1) Power cannot be supplied only to the X-ray system. Since the system has no

operation section other than the console, it must be started up even if maintenance is performed only for the X-ray system.

(2) A center-metal X-ray tube is used. Therefore, be sure to ground the center metal

potential.

(3) The system has a large capacitor (approx. 300 VDC, 36000 F) at the primary side.

Therefore, wait for at least 5 minutes after turning OFF the power of the system when removing the cover, etc. In addition, confirm that no electrical charges remain before touching the main circuit (including the floating section). (Check point: between P2 and N2 of the inverter section)

(4) Never apply a high voltage to a cold X-ray tube (the filament is not heated)

regardless of whether the high-voltage cable is connected or disconnected. Otherwise, the X-ray tube will be damaged.

When the positive side is disconnected,

Damage to the X-ray tube

(5) Since the tube voltage (kV) is fed back to the X-ray system, it is impossible to

check the high-voltage circuit with no load (without the X-ray tube). Use a test tube to isolate a tube-related problem (e.g., OVER mA error).

a strong current flows as shown damaging the X-ray tube.

No. 2D201-177EN*F

1.10 Replacing the X-ray Tube

1.10.1 Connection and operation check

(1) Connection and operation check

(a) Change of the output voltage to the X-ray tube

Perform connections at terminal board TBX11 and at the internal terminal board of the AC/CONTROL as described in the table below according to the X-ray tube used in combination (CXB-200E and 350A for Alexion). The connection with the X-ray tube is shown in the figure on the next page.

X-ray tube

TBX11 terminal

(heat exchanger unit)

AC/CONTROL internal terminal board TB1

CXB-200E Nos. 4 and 5 (110 V) VARIAN side

(orange cable -110 V, yellow cable - 65 V)

CXB-350A Nos. 4 and 6 (200 V) VARIAN side

(orange cable -110 V, yellow cable - 65 V)

TBX11

6 HEAT EXCH_200V

TOSHIBA

VARIAN

100 V

80 V

110 V

65 V

200 V

COM

Purple

Blue

Orange

Yellow

Red

White

TB1

80/65 V RUN

Yellow

Orange

COM

100/110 V

200 V

(b) XCS PWB setting change (settings of the OLP and the focus)

STATOR_COM

MAIN

PHASE

HEAT EXCH_COM

HEAT EXCH_110V

X-ray tube S2-1 S2-2 S2-3 to -8

CXB-200E ON ON OFF

CXB-350A ON OFF OFF

No. 2D201-177EN*F

Connection diagram for Varian X-ray tube

(2) If adjustment (80 kV/100 kV)

Perform If adjustment for 80 kV and 100 kV using the If value remote adjustment function. Confirm that the name of the X-ray tube used is displayed in the 'Tube Information' column.

(3) Seasoning

(4) If adjustment (120 kV/135 kV)

Use the If value remote adjustment function to adjust the If value only for the conditions of 120 kV/135 kV.

(5) X-ray tube alignment

No. 2D201-177EN*F

1.10.2 X-ray tube aging

Perform the aging operation from the console.

(1) Select the aging menu and perform it at the console.

(2) Stop 30 minutes or more after exposure is performed. (Leave the system with the

power turned ON.)

NOTE: The scan conditions for X-ray tube warm-up and seasoning are shown below.

For the scan conditions for warm-up, air calibration may be added depending on the system software settings.

For warm-up:

100 kV, 250 mA, 4-s exposure, 6-s pause  20 times 100 kV, 250 mA, 4-s exposure, 30-s pause  4 times

For seasoning:

100 kV, 250 mA, 4-s exposure, 6-s pause  20 times 30-s pause 100 kV, 250 mA, 4-s exposure, 30-s pause  10 times

For warm-up:

 For systems with output limited to 16 kW

80 kV, 150 mA, 4-s exposure, 15-s pause  3 times 100 kV, 150 mA, 4-s exposure, 15-s pause  4 times 120 kV, 100 mA, 4-s exposure, 15-s pause  1 time 120 kV, 130 mA, 4-s exposure, 15-s pause  2 times 100 kV, 160 mA, 2.5-s exposure, 18-s pause  20 times

 For 36-kW systems

80 kV, 150 mA, 4-s exposure, 15-s pause  3 times 100 kV, 150 mA, 4-s exposure, 15-s pause  4 times 120 kV, 100 mA, 2-s exposure, 15-s pause  1 time 120 kV, 200 mA, 2-s exposure, 15-s pause  1 time 120 kV, 300 mA, 2-s exposure, 15-s pause  1 time 100 kV, 200 mA, 2-s exposure, 18-s pause  20 times

For seasoning:

100 kV, 150 mA, 6-s exposure, 15-s pause  15 times 45-s pause 100 kV, 150 mA, 6-s exposure, 45-s pause  6 times

No. 2D201-177EN*F

1.10.3 If adjustment

The If value remote adjustment explained below is carried out to smooth out the leading edge of the tube current. Normally, If adjustment is performed while monitoring the tube current waveform (TP6 on the SYSTEM-CONTROL PWB). If the mA waveform on the oscilloscope does not match the If value shown in the figure below, adjustment is performed automatically.

The smallest overshoot is considered O.K. condition.

Large If

Value decreases

Small If

Value increases

(1) Starting the If value remote adjustment function

Select [If] from the <<System maintenance>> menu by clicking the mouse, to carry out the remote exposure adjustment of the If value from the Navi-port. The If value remote adjustment program will start up.

Engineer Utility

Password entry

Engineering

DCA

If Remote

No. 2D201-177EN*F

CANCEL

(The first page)

(2) Initial screen display and If value data reading

When the program starts up, the following view port screen is displayed on the monitor (hereinafter the view port is abbreviated to "vp".)

If value data reading vp screen

Read the If value data used first. Select the medium in which the If value data used is to be stored and saved.

(The XC information and the tube information currently displayed on the screen represent the ID information of the XC and the X-ray tube currently connected. If the connection is not carried out, "******" is displayed.)

Tube Information CXB-200E 2000 kHU/100% CXB-350A 3000 kHU/100%

[Unix File] : Reads the If value data saved on the console (hereinafter referred to

as "Unix File") in the format specified in advance. (Item (a))

[Standard] : Reads from the standard If value storage file for recommended If

values, the data under the kV/mA conditions predetermined by Toshiba. (Item (b))

[XC] : Reads the If value data currently set in the XC memory via SS.

(Item (c))

[QUIT] : Closes the If value data reading vp, and the screen returns to the If

value Remote Adjustment vp.

No. 2D201-177EN*F

(a) If value data read from the Unix File

When If value data read from the Unix File is chosen, the following If value read vp is displayed. Specify which file containing IF value data is to be read from the directory.

Read vp screen

Only the directories with file extension "---.ifs" are displayed. (Indicates If value data.)

In addition, the function of each soft key is as follows:

[Cancel]: Closes the Read screen and the system returns to the If value

Remove Adjustment screen.

[OK] : Executes the read processing.

When Read is completed normally after [OK] is clicked, the If value data read from the Unix File is displayed in the If column on the vp.

(b) Reading standard If value data

Read If value data from the file in which the recommended If value preset in the system is saved.

When data read from the standard value file is completed normally, the standard value will be displayed in the If column in the If value Remote Adjustment vp. (The value is the same as that of the Std. column.)

Read the If value data from the If value table currently set in the XC memory via SS.

When reading from the XC memory is completed normally as well as (b), the value read from the XC memory is displayed in the If item in the If Remote Adjustment vp.

No. 2D201-177EN*F

(3) Preparation for If value exposure adjustment

Check the validity of the value by performing an actual X-ray exposure using read If value data. If the value is not appropriate, update the If value, check the validity of the updated value again, and calculate the appropriate If value. In order to perform the If value exposure adjustment, the following must be taken into consideration.

<1> Which combination of tube voltage (kV), tube current (mA), and focal size is

the target for If value exposure adjustment? <Selecting the exposure adjustment conditions>

<2> What is the initial value of If value when If value exposure adjustment is

performed? <Setting the If value>

<3> Should the If value which is not the target of adjustment be interpolated

using the adjusted If value?

(a) If value Remote Adjustment vp

If value Remote Adjustment vp screen

When the If value data is read, the If value data list of the lowest tube voltage conditions (80 kV) is displayed. The following value is displayed on each field on the vp.

No. 2D201-177EN*F

<XC info.> : XC firmware version (10 bytes), which is obtained via SS,

is displayed.

<Tube info.> : The X-ray tube identification code (10 bytes), which is

controlled by the XC via SS, is displayed.

For CXB-200E [2000 kHU/100%] For CXB-350A [3000 kHU/100%]

<Tube Voltage>: The tube voltage to be adjusted (kV) is selected.

80, 100, 120, 135 kV

: The focus to be adjusted is selected.

Large, Small

<mA/If Table> : The tube current and If value data are displayed as

decimal values.

mA ; Tube current value

Std. ; Standard If conversion value

If ; If conversion value

adj.if ; If conversion value after adjustment (interpolation

calculation data is also included.)

* If value information for which the combination of kV and

mA is impossible becomes std., and "---" is displayed in the If column.

The functions of the soft keys which are on each vp are as follows:

[Adjust] : Executes If value exposure adjustment of the selected

adjustment conditions.

However, the adjustment must be controlled and

performed under the conditions (mA/focus size) for the same tube voltage level automatically. (Item (4))

[Write] : Saves or stores the If information currently displayed to

the Unix File or the XC memory. (Item (5))

[Read] : Reads If value information from the Unix File or the XC

memory, or converts If value data to the standard value. (Item (6))

[QUIT] : Closes this vp, the help vp, and the error vp, and quits If

value remote adjustment processing.

: Used for scroll-control of If value information (data display

for 10 lines) currently displayed. Information for the previous 10 lines can be displayed using

, and

information for the next 10 lines can be displayed using

No. 2D201-177EN*F

(b) Selecting the exposure adjustment conditions

Use the following procedure to select the conditions for If value exposure adjustment.

Selecting the conditions to be combined

To adjust a specific tube current condition, click the tube current to be adjusted. The clicked tube current is highlighted as shown in the figure above (250 mA and 300 mA are selected in the figure), indicating that the clicked tube current can be adjusted.

To cancel the specified conditions used in combination, click the specified conditions again. The highlighted tube current conditions are released.

No. 2D201-177EN*F

The If conversion value data can be changed as follows:

When the If conversion value data to be changed is clicked, the item is highlighted and the following "If Value Entry" vp is displayed. Perform If conversion value change on this entry vp.

Setting the If conversion value

If another line is clicked when the entry vp is displayed, the entry vp is closed, then the clicked item is highlighted and the entry vp is displayed again.

The numerical value which can be entered is from 1 to 256.

(4) If value exposure adjustment processing [Adjustment]

When the [Adjustment] key is clicked on the If value Remote Adjustment vp, the following vp will be displayed; the If value following the X-ray exposure can be checked, and the If value interpolation can be calculated.

If value Exposure Adjustment vp screen

No. 2D201-177EN*F

The displayed menus are as follows:

Tube kV : If tube voltage for adjustment Tube mA : If tube current for adjustment Focus : If focus for adjustment Exp. time : X-ray exposure time (fixed to 0.2 second)

If value : The If conversion value stored in the XC memory at the time

of adjustment. During adjustment, it is updated automatically. The numerical value in [ ] becomes the value preset for If value adjustment, that is, the initial value at the time of adjustment. By comparing the set value with the value displayed on the left, the difference can be checked.

<No. of adjustment>

Remain : The number of adjustments for the same tube voltage is

displayed as the remaining number of adjustments.

(a) Calculating the number of exposure adjustments

The number of adjustments and the order in which they are carried out is determined from the exposure adjustment conditions specified in (3).

(b) Setting the window limit value of the XC monitor mode

The window limit (maximum/minimum) value is calculated from the If value to be adjusted, and the result is displayed on the If Exposure Adjustment vp as well as the Setting If value vp. Moreover, the value is sent to the SS as a request for switching from XC monitor mode to If value check mode.

In order to send If conversion value data of the tube voltage/tube current/focal size for which exposure adjustment is performed to the XC memory via SS, the request text of XC memory write is issued to SS.

(d) Preparation for X-ray exposure

The request for warm-up scan is issued to the scan manager with the exposure adjustment conditions (note that scanning is performed only once.)

(e) Exposure adjustment start

Warm-up scanning is performed once by pressing the [Start] button.

No. 2D201-177EN*F

(f) Interruption processing during If value exposure adjustment

Interruption processing during exposure adjustment is as follows:

To stop temporarily the exposure adjustment, or to perform "Interpolation Calculation" processing, press the [Interruption] key. The "Interruption" message is sent from the scan manager, and the following message vp is displayed to ask whether the system should perform "Interpolation Calculation" processing or should interrupt exposure adjustment.

Do you want to stop If value exposure adjustment? Or, perform interpolation calculation?

Execute adjustment

Interpolation calculation

Interrupt adjustment

Exposure interruption vp screen

[Execute adjustment] : After closing the exposure interruption vp, the

system returns to a status where it waits for instructions to start If value exposure adjustment under the conditions used in the adjustment performed last.

[Interpolation calculation] : If there are two or more If value data for which

exposure adjustment was performed, this soft key becomes active. When the key is clicked, the interpolation processing check vp shown in item (g) is displayed and the system asks whether it should perform interpolation calculation processing.

[Interrupt adjustment] : When, after the Exposure Interruption vp and the

If value Exposure Adjustment vp are closed, there is even one If value data adjusted using the exposure adjustment, the Adjustment Result Check vp of item (j) will be displayed and it will be decided whether to employ the If value data.

If exposure adjustment was not performed, the

system returns to the If value Remote Adjustment vp.

No. 2D201-177EN*F

(g) Asking whether the system should perform interpolation calculation (at the

time of interruption)

The system replaces If value data not adjusted with interpolation calculation data, using the If value already exposure-adjusted which is displayed in the "adj.If" column on the If value Remote Adjustment vp. Select whether or not the system should perform interpolation processing, using the following interactive vp. The scroll key on If value Remote Adjustment vp can be used.

Interpolation Processing Check vp screen

[No] : The system closes the Interpolation Processing Check vp without

performing interpolation, and it returns to the Exposure Interruption vp.

[Yes] : The system closes the Interpolation Processing Check vp shown

above and performs interpolation processing displaying the message vp. After completing the interpolation, the system closes the message vp, displays interpolated If value in the "adj.If" column on the If value Remote Adjustment vp, and returns the Exposure Interruption vp.

Non-adjusted If value to be interpolated is the value between the

minimum mA and the maximum mA of the adjusted If value conditions. The method used is the primary interpolation method using two continuous data.

No. 2D201-177EN*F

(h) Reading and judging the If value check result

In order to obtain the result of If value check from the XC, the reading request text of XC and X-ray conditions (U status) is issued to SS.

<1> Check result O.K.

Since If value data currently set is O.K. when the If value check result data is 0, the system returns to item (b) "Setting the window limit value of XC monitor mode" if there are other exposure adjustment conditions. In this case, the system displays the If value checked in the "adj.If" column of the If value Remote Adjustment vp. If Exposure Adjustment at the same tube voltage is completed, the system closes the If value Exposure Adjustment vp and goes to item (i) "Asking whether the system should perform interpolation calculation (when adjustment is completed)".

<2> Check result error

When the If value check result data is 1 or 2, set the If conversion value again and repeat adjustment as described below. The following messages are displayed to indicate the errors detected during the check. After this, the system returns to item (b) "Setting the window limit value of XC monitor mode" and it waits for the [Start] button to be pressed again.

When data is 1: Since it exceeds the maximum, increase the If

conversion value by 1.

Previously detected If value exceeded the upper limit.

When data is 2: Since it is below the minimum, decrease the If

conversion value by 1.

Previously detected If value exceeded the lower limit.

No. 2D201-177EN*F

(i) Asking whether the system should perform interpolation calculation (when

adjustment is completed).

The system replaces non-adjusted If value data with interpolation calculation data, using the If value already exposure-adjusted which is displayed in the "adj.If" column on the If value Remote Adjustment vp. Select whether or not the system should perform interpolation processing, using the following interactive vp. The scroll key on the If value Remote Adjustment vp can be used.

Adjustment Result Check vp screen

The functions of soft keys [No] and [Yes] on the vp are the same as those in (g) "Asking whether the system should perform interpolation calculation (at the time of interruption)". However, the difference is that the system goes to (j) "Checking the adjustment results and storing data in the XC" after processing is completed using each key. The target and the method of interpolation are the same as those in (g).

(j) Checking the adjustment results and storing data in the XC

The adjusted and interpolated If value is displayed in the "adj.If" column on the If value Remote Adjustment vp. Confirm whether the If value should be stored in the XC memory as new If value data using the following interactive vp.

Adjustment Results Check vp screen

[No] : The following message vp is displayed after the above interactive vp

is closed. The non-adjusted value in the If column is stored in the XC memory, and the numerical value in the "adj.If" column is deleted. The system returns to the If value Remote Adjustment vp.

[Yes] : The following message vp is displayed after the above interactive vp

is closed. The adjusted value in the adj.If column is stored in the XC memory, the numerical value in "adj.If" column is copied to the If column, and the numerical value in the "adj.If" column is deleted. The system returns to the If value Remote Adjustment vp.

No. 2D201-177EN*F

(5) Write If value data (storage and set)

When [Write] on the If value Remote Adjustment vp is clicked, the following vp is displayed. On the vp, the If value information (If, Std.) currently displayed on the If value Remote Adjustment vp can be saved in the Unix File, or the changed If value can be stored in the XC memory directly.

If value Data Write vp screen

[Unix File] : If value information is saved in the selected format. At this time,

identifier "-----.ifs" is added. (Item (a))

[XC] : The If value information is written in the If value table in XC memory

via SS (updating). (Item (b))

[QUIT] : The If value data write screen is closed, and the system returns to the

If value Remote Adjustment vp.

No. 2D201-177EN*F

(a) Writing the If value information to the Unix File

When [Unix File] is clicked on the If value data archive vp, the If value write vp is displayed. Enter the file name of the If value information to be written.

If value write vp screen

Up to 8 alphanumeric characters can be entered for the file name.

[Cancel]: The system returns to the If Remote Adjustment vp.

[OK] : Data is written to the Unix File.

When [OK] is clicked, saving of the If value data to the Unix File starts.

When saving is completed normally, the system returns to If value Remote Adjustment vp control.

(b) Writing If value information to the XC memory (writing)

The If value data currently displayed on the If value Remote Adjustment vp is written via SS to the If value table in the XC memory.

When writing of the If value data to the XC memory is completed normally, the system returns to the If value Remote Adjustment vp.

(6) If value information reading

When [Read] is clicked on the If value Remote Adjustment vp, If value information can be retrieved from the Unix File, the XC memory, or the standard value storage files. For details, refer to subsection 1.10.3 (2) "Initial screen display and If value data reading".

No. 2D201-177EN*F

1.11 Troubleshooting

Troubleshooting and countermeasures against problems are explained.

1.11.1 X-ray high-voltage generator troubleshooting

1.11.1.1 Error types

(1) X-ray high-voltage generator error

Err-No. Meaning Presumed cause

E00 Backup memory error Low battery on the XCS PWB

E00 Abnormality in the

X-ray high-voltage generator

E02 X-ray exposure time excess

error

E03 Exposure waiting time excess

error

E04 Preheating time excess error Abnormal control or communication from SS

E05 Heating time excess error Abnormal control or communication from SS

E06 Starter output time excess

error

E08 OLP 110% excess error Related to E02.

E11

E12

E13

E14

E25 Overvoltage Abnormal main circuit control

E27 Overcurrent Abnormal main circuit control

E43 Inverter thermal error Abnormal heat generation in the inverter unit

E45 Cable interlock Cable disconnection, damage to the cable

E50 AC fault Abnormal input circuit

Over kV-

Over kV+

Arcing-

Arcing+

High-voltage abnormality (HV abnormal)

110% of setting time was exceeded.

Abnormality of control or transmission at the gantry side

Abnormal control or communication from SS

Abnormal main circuit control

Electric discharge of the X-ray tube or the highvoltage section

Abnormal high-voltage transformer secondary circuit

Electric discharge of the X-ray tube or the highvoltage section

Faulty main circuit elements (IGBT etc.)

Abnormal high-voltage transformer secondary circuit

Electric discharge of the X-ray tube or the highvoltage section

The cooling fan is faulty.

The cooling fan of the gantry is faulty.

No. 2D201-177EN*F

Err-No. Meaning Presumed cause

E51 DOOR Door switch detection

E54 X-ray tube thermal error Abnormal heating of the X-ray tube

The heat exchanger is faulty.

The cooling fan of the gantry is faulty.

Excessive temperature around the gantry

E55 X-ray tube flow error Abnormal X-ray tube heat exchanger operation

Abnormal circulation of cooling oil of the X-ray tube

E62 Over mA- Electric discharge of the X-ray tube or the high-

voltage system

E63 Over mA+ Electric discharge of the X-ray tube or the high-

voltage system

E64 Low mA Abnormal X-ray output

Abnormal main circuit (element breakage, blown fuse) Abnormal filament heating circuit Disconnection of the high-voltage system Disconnection or cup touch of the X-ray tube filament

E66 MAC error Trouble of the filament heating circuit

E67 Abnormal focus selection Abnormal control circuit

E81 Fixed starter control relay

Abnormal control circuit

boost

E82 Fixed starter control relay run Abnormal control circuit

E83 Abnormal main coil current at

the time of boost

Disconnection of the rotor output circuit Blown fuse Abnormal X-ray tube stator coil

E84 Abnormal sub-coil current at

the time of boost

Disconnection of the rotor output circuit Blown fuse Abnormal X-ray tube stator coil

E85 Starter normal error Abnormal starter

(Not used)

E86 Starter setup error Abnormal starter

E90 Test mode Set to test mode.

(2) Control of display on the gantry stationary section

The status of the high-voltage generator is displayed on the gantry stationary section (GCIFM PWB of the optical data transfer section) as described below.

Name Remarks

X-RAY ON (LED45)

COUNTER ON (LED49)

XC NORMAL (LED50)

Lit while X-rays are generated.

Lit while the slice counter is counting up.

Lit when the control firmware of the X-ray system is operating normally.

Normally, XC NORMAL and OIL COOL ON are lit with the power turned ON.

No. 2D201-177EN*F

1.11.1.2 Setting and adjusting the PWBs

Four PWBs; the XCS PWB, SYSTEM-CONTROL PWB (SCB), AC PWB, and INV PWB; must be inserted and adjusted. Only the XCS PWB and the SYSTEM-CONTROL PWB can be replaced as a single unit.

[Test mode setting]

Set the SW at the front of the AC/CONTROL section to the "TEST" position. The main circuit is turned OFF and a series of commands can be accepted, without generating X-rays.

(1) XCS PWB

For information regarding PWB No., groups, and ROMs, refer to 1.5.4 (3) "XCS PWB".

(a) Setting of each part

After replacement of the XCS PWB, confirm that the X-ray tube type is set correctly by checking the X-ray tube information in the If adjustment window.

Switch number Setting Remarks

S1 --- Reset switch

S2-1 * Tube type selection switch

* CXB-200E: ON CXB-350A: ON

S2-2 * Tube type selection switch

* CXB-200E: ON CXB-350A: OFF

S2-3 * Tube type selection switch

* CXB-200E: OFF CXB-350A: OFF S2-4 OFF (Used in the factory) S2-5 OFF (Used in the factory) S2-6 OFF (Used in the factory) S2-7 OFF (Used in the factory) S2-8 OFF (Used in the factory)

No. 2D201-177EN*F

(b) Names and contents of LEDs

LED number Name Remarks

D1 --- Lit: Command is being received. D2 --- Lit: Rotor ON setting D3 --- Lit: Preheat ON setting D4 --- Lit: Main heating ON setting D5 --- Lit: Command status is busy. D6 --- Lit: Rotor ON setting

Rotor setup standby status D7 --- Lit: Preheat is in progress (2 s). D8 --- Lit: Main heating is in progress (1 s). D9 READY Lit: Setup status

(Main heating and rotor are set to ON.)

D10 XRAY Lit: X-ray exposure ON setting D11 HFXRAY Lit: X-ray exposure is being performed. D12 XCNORM Lit: Indicates that the XC control is in

normal status.

(If a request to turn ON the power of the

main circuit is not issued, this LED is

out because it is not a normal status.)

D13 HFNORM Lit: Normal control status of the HFG (other

than XC)

D14 X-POW Lit: Indicates that power is supplied to the

control system, but no request to turn

ON the main circuit was issued from the

console.

D15 POWER Lit: Normal status of the XC power

Number Normal setting Remarks

W1 1-2 Communication selection

1-2 for console and 2-3 for connection directly to the PWB (CNN3)

W2 1-2

W3 1-2

(Fixed setting to 1-2 for use in the factory) Observation of the console power (X-POW) 1-2 for enabled and 2-3 for disabled

(d) Test points

TP number Name Remarks

TP1 --- GND

TP2 --- GND

TP3 DOOR Door signal

TP4 VCC 5V

TP5 XRAY0 X-ray exposure ON signal

TP6 T-NMI (Used in the factory)

TP7 T-RST (Used in the factory)

No. 2D201-177EN*F

(e) Procedure for replacing the battery on the XCS2 PWB

a. Outline

This section describes the procedure for replacing the back-up battery mounted in the XCS2 PWB. Although the battery is designed to be charged while power is supplied, the performance may deteriorate after long usage. A faulty battery disables back-up of the memory of If data and operation of the built-in clock, and also causes failure of the XCS2 PWB. Therefore, periodic replacement of battery is required.

b. Battery to be used

Parts drawing number Item Q'ty Location

AVY005-01 BATTERY 1 4A

c. Items required

Back-up If data. Be careful because the OLP is set to 100% immediately after replacement.

d. Replacement procedure

<1> Turn OFF the power supply, remove the old battery.

<2> Install the new battery.

<3> When the XCS2 PWB is started up directly after the battery

replacement, the XCS2 PWB detects the back-up data error and stops. Select [XC error Reset] in the console window after turning ON the power to release the error.

<4> Readjust the If data using the back-up data. (Refer to "If

Adjustment".)

NOTE: Do not use any battery other than that specified for replacement.

Dispose of the used battery according to the disposal instructions of the manufacturer.

No. 2D201-177EN*F

(2) SYSTEM-CONTROL PWB test points

TP No. Name Remarks

TP1 CATHODE-KV 0-10V=0-(-7.68KV)

TP2 ANODE-KV 0-10V=0-76.8KV

TP3 TKV 0-10V=0-153.6KV

TP4 KV-REF 0-10V=0-153.6KV

TP5 ANODE-mA 0-10V=0-512mA

TP6 CATHODE-mA 0-10V=0-512mA

TP7 mA-REF 0-10V=0-512mA

TP8 FIL-fdbk 10V=5.12A

TP9 FIL-prog 10V=5.12A

TP10 DC+10V DC+10V

TP11 NONE

TP12 NONE

TP13 RAIL (K) 10V=333V

TP14 RAIL (A) 10V=333V

TP15 DC+5V DC+5V

TP16 DC+15V DC+15V

TP17 DC-15V DC-15V

TP18 DC+15V RTN 0V

TP19 DC+15V RTN 0V

TP20 DC+15V RTN 0V

(3) INV PWB test points

TP No. Name Remarks

TP3 (TP1) ANODE-mA-fdbk 0-10V=0-512mA

TP4 (TP2) ANODE-KV-fdbk 0-10V=0-76.8kV

TP5 CATHODE-mA-fdbk 0-10V=0-512mA

TP6 CATHODE-KV-fdbk 0-10V=0-(-76.8kV)

TP7 FIL-I-fdbk 0-10V=0-5.12A

No. 2D201-177EN*F

1.11.1.3 Service parts list

Part name

AC/CONTROL PX71-07302 Gr1

CONTROL PWB PX71-07304 Gr1

INV/HV ANODE PX71-07303 Gr1

INV/HV CATHODE

RAIL CABLE BSX71-0795E

CONTROL CABLE BSX71-0796E

XCS2 PWB PX71-07786 Gr1

RXP12 CX71-06496 Gr1

RXS06 CX71-06497 Gr1

RXE06 CX71-06620 Gr2

H.T. CABLE (NEW+/-) BSX71-0376E

100A FUSE BSX71-0797E

42 kW

CXXG-010A

No. 2D201-177EN*F

1.11.2 Troubleshooting flowchart for main circuit

(1) AC fault

AC FAULT

DOES FAULT

OCCUR DURING

EXPOSURE?

YES

MONITOR TP13

ON THE SYSTEM

CONTROL BD

DOES RAIL

MONITOR MEET

SPEC?

YES

REPLACE

SYSTEM

CONTROL BD

REPLACE AC

PWB

RESET

GENERATOR

YES NO

YES

IS FAULT

PRESENT?

MONITOR E6 AND

E7 ON THE AC

PWB

ARE RAIL VOLTS

PRESENT?

END

REPLACE AC

CHASSIS

No. 2D201-177EN*F

(2) Uncommanded exposure

UNCOMMANDED

EXPOSURE

DOES FAULT

OCCUR DURING

RESET

GENERATOR

EXPOSURE?

YES

MONITOR CKV

(TP6) AND AKV

(TP4) ON THE

IS FAULT

PRESENT?

INVERTER PWB

YES

REMOVE I/O

DOES THE RISE

AND FALLTIME OF

CKV AND AKV

MEET SPEC?

YES

CABLE FROM JB2 AND GND JB2 PIN

32 ON THE

SYSTEM

CONTROL BD

REPLACE THE

HIGH-VOLTAGE

CHASSIS

RESET

GENERATOR

END

IS FAULT

PRESENT?

YES

REPLACE

SYSTEM

CONTROL BD

No. 2D201-177EN*F

(3) Filament error

FILAMENT

ERROR

DOES FAULT

OCCUR DURING

EXPOSURE?

YES

MONITOR

FILAMENT

PROGRAMMING

AT TP9 ON THE

SYSTEM

CONTROL BD

DOES FILAMENT

PROGRAMMING (XC) =

ACTUAL

PROGRAMMING

(TP9)?

YES

MONITOR

FILAMENT

FEEDBACK ON

TP7 ON THE

INVERTER PWB

YES

RESET

GENERATOR

IS FAULT

PRESENT?

REPLACE

SYSTEM

CONTROL BD

DOES FIL

PROGRAMMING

= FIL FEEDBACK?

REPLACE

INV/HV

CHASSIS

END

YES

No. 2D201-177EN*F

(4) Anode/cathode overvoltage fault

ANODE/

CATHODE

OVERVOLTAGE

DOES FAULT

OCCUR DURING

EXPOSURE?

MONITOR KV

REFERENCE ON

THE SYSTEM

CONTROL BD

DOES KV

REFERENCE

MATCH OUTPUT

PROGRAM?

SET KV PROGRAM

FOR 80KV.

MONITOR CKVFBK

(TP6) AND AKVFBK

(TP2) IN THE INV/

HV CHASSIS

YES

RESET

GENERATOR

IS FAULT

PRESENT?

YES

REMOVE I/O CABLE FROM JB2 AND GND JB2 PIN

32 ON THE

SYSTEM

CONTROL BD

RESET

GENERATOR

YES

MONITORS MATCH

KV REFERENCE?

DOES KV

REPLACE

INV/HV

CHASSIS

END

IS FAULT

PRESENT?

YES

REPLACE

SYSTEM

CONTROL BD

No. 2D201-177EN*F

(5) Cable interlock

No. 2D201-177EN*F

(6) Over-temperature fault of the high-voltage section

HV OVER

TEMPERATURE

DOES FAULT

OCCUR DURING

EXPOSURE?

YES

ALLOW THE

GENERATOR TO

COOL FOR 30

MINUTES

IS FAULT

PRESENT?

YES

MEASURE

RESISTANCE OF

JB2 PIN 17 TO

GND ON THE

INV/HV

CHASSIS

YES

RESET

GENERATOR

IS FAULT

PRESENT?

REPLACE

INV/HV

CHASSIS

DOES IT

MEASURE

OPEN?

YES

REPLACE

SYSTEM

CONTROL BD

END

No. 2D201-177EN*F

(7) Anode/cathode arc

ANODE/

CATHODE

ARC

REPLACE THE

TUBE OR

CABLES.

OCCUR DURING

YES

IS THE TUBE OR THE

CABLES THE CAUSE

DOES FAULT

EXPOSURE?

YES

VERIFY THE

INTEGRITY OF

THE TUBE AND

THE HIGH-

TENSION X-RAY

CABLES

OF THE ARC?

REPLACE

INV/HV

CHASSIS

RESET

GENERATOR

IS FAULT

PRESENT?

YES

REMOVE I/O CABLE FROM JB2 AND GND JB2 PIN

32 ON THE

SYSTEM

CONTROL BD

RESET

GENERATOR

IS FAULT

PRESENT?

END

No. 2D201-177EN*F

YES

REPLACE

SYSTEM

CONTROL BD

(8) Anode/cathode overcurrent

No. 2D201-177EN*F

(9) Abnormal high voltage

ABNORMAL

REPLACE

TUBE OR

XCS BD

DOES FAULT

OCCUR DURING

EXPOSURE?

YES

VERIFY INTEGRITY OF THE TUBE AND

VERIFY

PREHEATS

YES

IS THE TUBE OR

PREHEATS THE

SOURCE OF THE

PROBLEM?

MONITOR THE DC

RAILS (TP13) ON

THE SYSTEM

CONTROL BD

ARE THE RAILS

IN SPEC?

RESET

GENERATOR

IS FAULT

PRESENT?

YES

REMOVE I/O CABLE FROM JB2 AND GND JB2 PIN

32 ON THE

SYSTEM

CONTROL BD

RESET

GENERATOR

IS FAULT

PRESENT?

YES

MONITOR CKV (TP6) AND AKV

(TP4) ON THE

INVERTER PWB.

YES

DOES KV

MONITORS

MATCH KV

REFERENCE?

REPLACE

INV/HV

CHASSIS

REPLACE

SYSTEM

CONTROL BD

YES

END

No. 2D201-177EN*F

MONITOR AMA

REPLACE AC

PWB

B C

(TP1) AND CMA

(TP5) ON THE

INVERTER PWB

ARE THE RAILS

IN SPEC?

YES

REPLACE THE

AC CHASSIS

END

DOES MA MONITORS MATCH MA

REFERENCE?

REPLACE

INV/HV

CHASSIS

YES

REPLACE

SYSTEM

CONTROL BD

No. 2D201-177EN*F

1.11.3 X-ray tube troubleshooting

(1) Discharging during exposure

When discharging occurs in a high-voltage circuit during an exposure, the OVER-mA LED or OVERCURRENT, OVER VOLTAGE, ARC LED on the XP PWB lights.

The unwanted discharging is possibly caused by low dielectric strength of the X-ray tube, the high-voltage cable, the high-voltage transformer, or the cable bushing. Discharging can be detected by observing waveforms, noise, frequency of malfunction, or a visual inspection of the connections. Sometimes it is hard to isolate the location of the discharge. Parts that are suspected to be faulty can be replaced by new ones as a method of troubleshooting.

New X-ray tubes are likely to discharge in the early period of operation and stabilize as the X-ray tubes are used. To stabilize a new X-ray tube as quickly as possible, aging and operation should be performed frequently.

A high-pitched noise generated by the X-ray tube

Discharge always occurs

Intermittent discharge

Unwanted characteristics in tube current waveform

Blackened bushing

Discharge in the X-ray tube



Expired X-ray tube or degraded focus



Replace the X-ray tube.

Low dielectric strength of the X-ray tube



Can be eliminated by aging, frequent operation,



and getter aging.

Discharge caused by an anode rotation error



Damaged bearing



Shorted or disconnected stator coil



Discharge due to low dielectric strength of the



bushing

Fit the bushing firmly. Clean the bushing.



No. 2D201-177EN*F

Replace the silicone plate of the bushing.



Correct the pin clearance.



(2) Oil leakage

Oil leak in the heat

Defective heat exchanger circulation system



exchanger

Oil leak in the X-ray tube

Oil leak in the hose

Oil leak in the explosion-

Defective tube housing



Improper coupling or hose flaws



Overheated oil



proof valve

(3) Tube interlock error

Flow switch is error.

Thermal switch is error.

Defective oil pump



Overheating of the tube housing



Defective cooler (fan malfunction, dust in the

radiator, etc.)

Overheating due to overload

(4) Abnormal noises

Noises from the X-ray tube

Cooler noises

Abnormal anode rotation



Fan trouble or pump trouble



(5) No tube current flow

Filament current flow detected

No filament current flow

Filament in contact with the tube cup



Open filament



No. 2D201-177EN*F

[REFERENCE]

X-RAY TUBE MALFUNCTIONS AND ERROR CODES

Malfunction and error codes (CT X-ray tube)

Code

Symptom of malfunction

Code Source of failure Code Frequency

A Discharge 0 Discharge 0 Unknown

1 Tube overcurrent (Over-mA)

2 Error due to discharge 1 Always

3 Low isolation between A and K

(pin-hole, cracked glass, etc.)

Frequent

4 Insufficient rotation

B Oil leakage 0 Oil leakage

1 Heat exchanger 4 Once per week

2 X-ray tube

3 Oil hose

C Tube 0 Tube interlock 5 Once per month

interlock 1 Flow switch

(Overheat) 2 Thermal switch

3 Oil circulation

D Abnormal

0 Abnormal rotation noise

rotation noise

E No mA

0 No mA current

current

1 Filament in contact with the tube

cup

2 Open filament

F Faulty stator 0 Faulty stator

1 Short-circuited stator coil

2 Open stator coil

G Abnormal

image

0 Abnormal image

1 Blurred streaks (Vibration)

2 Shading

3 Streak shower

4 Horizontal artifact

5 Ring image caused by improper

focus

6 Abnormal image due to foreign

matter

7 SD trouble

H Other 0 Other

1 Normal exchange (e.g., for

periodic maintenance)

2 Accidental damage to the

bushing (e.g., in delivery)

No. 2D201-177EN*F

1.11.4 XC error log reference procedures

1.11.4.1 Outline

The XC PWB can store error information items which have occurred in the backup memory. The number of error information items that can be stored is 64 items for the XCS2 PWB. Although the error information can usually be referred to using the error log function of the hardware provided in the system, it may be better to refer to the log in the XC memory for some error statuses. This subsection describes the procedure for referring to this error log.

1.11.4.2 When the error log is collected from the system software (console)

The error log is collected using the error log collection function of the system software (console).

(1) Error log collection

Shut down the console and restart it. Save the error log by following the steps described in "Procedure for saving the error log – procedure for saving all error logs" of the service manual for the software. The error log file of the XC is saved as "Xclog.log". The procedure for collecting the error log of the XC may differ depending on the system software. Refer to the service manual of the software to confirm the procedure.

NOTE: Current log data is saved in a single file as follows.

c:> x:[Enter]

x:> IV_allloggetc[Enter] (c: current)

Then the single file is saved in s:/InnerVision/IV_allloget/ directory. If there is no space on the s: drive, the file is automatically saved in the g:/IV_alllogget/ directory. If there is no space on the g: drive, log data cannot be saved in the file.

When the following command is entered, all log data is saved in the file.

x:> IV_allloggeta[Enter] (a: all)

In this case, keep in mind that the file size greatly increases.

No. 2D201-177EN*F



(2) Analysis

Open the error log file. The following logs are displayed.

Read the error log referring to the example below.

(a) Data structure

XL30 xxxx

000000000 mmddhhmm xxxxxxxxxx xx x x x x xxxxx xxxxxx

<1> <2> <3> <4> <5> <6> <7> <8> <9> <10>

Error No.

Date of error occurrence

Error code

(R status Information)

Command to be executed

Operating mode

Preset tube voltage

Preset tube current

Preset focal spot size

Preset exposure time

Actual exposure time

Spare

No. 2D201-177EN*F

(b) Log data analysis

The following error log data is analyzed.

(Example)

XL30000800000000001211035??=???????U3R1w10005000008800000

↓

XL30 0008

000000000 01211035 ??=??????? U3 R 1 w 1 00050 000088

<1> <2> <3> <4> <5> <6> <7> <8> <9> <10>

<1> Bytes 5 to 8 Err log No.

<2> Bytes 18 to 25 Date of error occurrence

"(18)(19)" : Month "(20)(21)" : Date "(22)(23)" : Hour "(24)(25)" : Min.

<3> Bytes 26 to 35 Error code (R status Information)

ASCII codes are converted to the characters as shown in the table below.

Characters Hexadecimal

Conversion

value code

Characters Hexadecimal

Conversion

value code

0 0x30 00110000 8 0x38 00111000

1 0x31 00110001 9 0x39 00111001

2 0x32 00110010 : 0x3a 00111010

3 0x33 00110011 ; 0x3b 00111011

4 0x34 00110100 < 0x3c 00111100

5 0x35 00110101 = 0x3d 00111101

6 0x36 00110110 > 0x3e 00111110

7 0x37 00110111 ? 0x3f 00111111

The indication for the error is as follows:

(x: 1 = Normal, 0 = Abnormal)

26 0011xxxx

WARNING ("OR" of the warning conditions) Door open Abnormal input power supply (AC Fault) (Always 1)

27 0011xxxx

ArcArc+: Inverter overvoltage Over kV+ HFG error (HV Abnormal)

No. 2D201-177EN*F

28 0011xxxx

Over mAOver mA+ (Always 1) Over kV-

29 0011xxxx

(Always 1) (Always 1) MAC error (Filament Error) Overtime error

30 0011xxxx

X-ray tube flow switch error X-ray tube thermal switch error Cable interlock error (Always 1)

31 0011xxxx

(Always 1) Test mode (Always 1) Inverter thermal switch error

32 0011xxxx

33 0011xxxx

34 0011xxxx

35 0011xxxx

X-ray exposure permissible timeout error Rotor timeout error Preheat timeout error XC error

(Always 1) (Always 1) XC watchdog timeout error Filament timeout error

Starter main coil Run current error Starter sub coil Run current error Starter main coil boost current error Starter sub coil boost current error

(Always 1) Backup memory error OLP limit excess error Abnormal focus relay

No. 2D201-177EN*F

<4> Bytes 36 to 37 : Execution commands

Last received command code, command ID

Exceptions (Only for XCS1 PWB)

"01": Backup memory destruction detection at the time

of start-up of the firmware

"02": HFG error detection at the time of start-up of the

firmware "03": Watchdog timeout error "04": Excess HU value "05": Detection of rotor and filament heating time-out

error "06": Automatic scan recovery caused by arcing

occurs during scanning

<5> Byte 38 : Operating mode

Normally "R" R: Remote

<6> Byte 39 : Set tube voltage

"1": 80 kV "2": 100 kV "3": 120 kV "4": 135 kV

<7> Byte 40 : Set tube current

"A": 50 mA "a" : 310 mA "B": 60 mA "b" : 320 mA :  "j" : 400 mA  "u" : 10 mA  "v" : 20 mA :  "x" : 40 mA "O": 190 mA "Z": 300 mA

(Up to 300 mA for the CXXG-010A)

<8> Byte 41 : Set focus size

"1": small "2": large

<9> Bytes 42 to 46 : Set exposure time

"(42) (43) (44). (45) (46)" seconds

<10> Bytes 47 to 53 : Actual exposure time

"(47) (48) (49). (51) (52) (53)" seconds

No. 2D201-177EN*F

Therefore, this example is indicated as follows:

XL30 0008

01211035 ??=??????? U3 R 1 w 1 00050 000088

<1> <2> <3> <4> <5> <6> <7> <8> <9> <10>

Over mA+ errors occurred at 10:35 on January 21. The setting conditions at this time were 80 kV, 30 mA, Small focus, and 0.5 seconds. The actual exposure time was 0.088 seconds.

No. 2D201-177EN*F

CHAPTER 2

DATA ACQUISITION SECTION

No. 2D201-177EN*F

2.1 Introduction

Details of the data acquisition section CDAS-024A/1A (CLB-07027) are provided in subsections 2.2 "Configuration" to 2.9 "Repair".

2.2 Configuration

2.2.1 Components

The data acquisition section consists of the following:

(1) Detector

Main detector : 1 set

Reference detector : 1 set

(2) DAS

T-CONTROL PWB : 1

T-CONVERTER PWBs : 8

DAS chassis : 1 set

(3) Power supply unit

DAS power supply : 1 set

(4) Detector temperature control unit : 1 set

NOTE: Items (3) "Power supply unit" and (4) "Detector temperature control unit"

are included in the gantry in the system configuration. Refer to gantry mechanism section when looking for the components of these units in the part list.

No. 2D201-177EN*F

2.2.2 Configuration table

The configuration of the data acquisition section is shown below.

Configuration of data acquisition section

NOTE: The items above shown in dotted lines

system configuration. Refer to the gantry mechanism section when looking for the components of these units in the part list.

are included in the gantry in the

No. 2D201-177EN*F

2.2.3 Layout drawing

A layout drawing of the components of the data acquisition section is shown below.

Main detector

X-ray tube

REF detecto

Temperature controller

Circuit protector (CP740)

DAS main unit

Names of components of the data acquisition section (Gantry rear panel)

DAS power supply (rear of the DAS main unit)

No. 2D201-177EN*F

2.3 Overall Operation

X-ray entering the main detector, REF detector is converted to a current signal, and A/D conversion is performed on the DAS T-CONVERTER PWB to make it digital data. The digital data is transferred to the OPCONTA PWB of the data transmission section via the DAS T-CONTROL PWB. Once the data is converted to serial data, it is transferred to the GCIFM PWB of the data transmission section of the gantry fixing section. The data is converted back to parallel data again at the GCIFM PWB, and then it is transferred to the HIF4 PWB in the NAVI BOX.

The data flow is as shown below.

Data flow

No. 2D201-177EN*F

2.4 Main Detector

The main detector is a two-dimensional multi-slice detector array with 720 channels  4 rows. A total of more than 10,000 detection elements are arranged in two dimensions in the channel and axial directions. The minimum slice thickness is 1.0 mm.

The data for 4 slices per channel is output to the DAS. The output signals are then supplied to the T-CONVERTER PWBs of the DAS via a backplane PWB.

The 720-channel  4-row signals are changed to 660-channel  4-row output signals by bundling the channels on the backplane PWB, and the 660-channel  4-row output signals are input to the T-CONVERTER PWBs of the DAS.

How to bundle channels

No. 2D201-177EN*F

2.5 REF Detector

The reference detector uses a solid-state detector as the sensor and measures variations in the X-ray dose in the view direction. The current signals are sent to the main detector connectors through a low-noise cable. The output signal is input to the DAS via backplane PWB using a low-noise coaxial cable.

2.5.1 Connections between the main detector, the REF detector, and the DAS

A connection diagram for the main detector, REF detector, and DAS is shown below.

For this system, because the channels at both ends (96 channels at the channel 57 end, 24 channels at the channel 776 end) of the main detector are bundled, the detector channel number does not match the DAS channel number.

Connections between the main detector, the REF detector, and the DAS

No. 2D201-177EN*F

2.5.2 Correspondence between the main detector channels and the DAS channels

The correspondence between the main detector channels and the DAS channels is shown below.

Correspondence between the main detector channels and the DAS channels

Main detector

channel

Only Ref - CNV1 Refch 1

57 to 80ch CNA3

81 to 104ch CNA4 61 to 72ch

105 to 128ch CNA5 73 to 84ch

129 to 152ch CNA6 85 to 96ch

153 to 176ch CNA7 97 to 120ch

177 to 200ch CNA8 121 to 144ch

201 to 224ch CNA9

225 to 248ch CNA10 169 to 192ch

248 to 272ch CNA11 193 to 216ch

273 to 296ch CNA12 217 to 240ch

297 to 320ch CNA13

321 to 344ch CNA14 265 to 288ch

345 to 368ch CNA15 289 to 312ch

369 to 392ch CNA16 313 to 336ch

393 to 416ch CNA17

417 to 440ch CNA18 361 to 384ch

441 to 464ch CNA19 385 to 408ch

465 to 488ch CNA20 409 to 432ch

489 to 512ch CNA21

513 to 536ch CNA22 457 to 480ch

537 to 560ch CNA23 481 to 504ch

561 to 584ch CNA24 505 to 528ch

585 to 608ch CNA25

609 to 632ch CNA26 553 to 576ch

633 to 656ch CNA27 577 to 600ch

657 to 680ch CNA28 601 to 624ch

681 to 704ch CNA29

705 to 728ch CNA30 649 to 672ch

729 to 752ch CNA31 673 to 696ch

753 to 776ch CNA32 697 to 708ch

Backplane PWB connector DAS channel T-CONVERTER PWB slot

49 to 60ch

CNV2

145 to 168ch

CNV3

241 to 264ch

CNV4

337 to 360ch

CNV5

433 to 456ch

CNV6

529 to 552ch

CNV7

625 to 648ch

CNV8

Note: For the 4-slice detector, the correspondence table (shown above) for 4 rows is

provided. The REF detector is connected to channel 1 (row 1) of the DAS.

No. 2D201-177EN*F

Correspondence between the DCA channels and the DAS T-CONVERTER PWB slot numbers

T-CONVERTER01

DCA

channel

IN1

IN2

IN3

IN4

IN5

IN6

IN7

IN8

IN9

IN10

IN11

IN12

IN13

IN14

IN15

IN16

IC ch

IN17

IN18

IN19

IN20

IN21

IN22

IN23

IN24

IN25

IN26

IN27

IN28

IN29

IN30

IN31

IN32

IC1B2#IC1D

REF NC

NC NC

NC NC NC NC NC NC NC NC NC

NC NC NC NC NC NC NC NC NC NC NC

NC NC NC NC NC NC NC NC NC NC NC NC

NC NC NC NC NC NC NC NC

NC NC NC NC NC NC NCNC NC

NC NC NC NC NC NCNC

NC NC NC NC

NC NCNC

NC NC NC NC

NC NC NC NC NC NC

NC NC NC NC

NC NC NC NCNC NC NC NC

NC NC NC NC

NC NC

ANCNCNCNCNCNC

BNC

CNCNCNCNCNCNC

DNCNC NC

NC NCNC NC

NC NC NC NC NC NC

NCNC

NC NC NC NC NC NCNC NC

IC3B4#IC3D

NC NC

NC NC NC NC NC NC NC NCNC NC

NC N

NC NC NC NC

NC NC NC NC NC

NC NC NC

NC NC NC NC NC

NC NC NC NC

NC NC NC NC NC

NC NC NC NC

NC NC NC NC NC

NC NC

NC NC NC

IC5B6#IC5D

NC NC

NC NC NC

NC NC

C NCNC NC

NC NC NC NCNC NC NC NC

NC NC NC NCNC NC NC NC NC NC NC NC

IC NO.

IC0A

NC NCNC

NC NC NC

NC NCNC NC

NC NC NC

NCNC NC

IC0C9#IC2A

NCNC NC

NC NC

NC NC NC NC

NC NC NC

10#

IC2C

NC NC

NC NCNC

NC NC

NC NCNC

NC NC

NC NCNC NC

NC NC NC NCNC NC NC NC

NC NC

NC NCNC

NC NC NC NCNC NC NC NC

NC NC NC NC

11#

IC4A

IC4C

NC NC

NC NCNC NC NC NC NC NC

12#

NCNC NC NC NC NC NC

No. 2D201-177EN*F

–

DCA

channel

IC ch

IC1B2#IC1D3#IC3B

IN1 4 – 153

IN2 3 – 153

IN3 2 – 153

IN4 1 – 153

IN5 4 – 177

IN6 3 – 177

IN7 2 – 177

IN8 1 – 177

IN9 4 – 154

IN10 3 – 154

IN11 2 – 154

IN12 1 – 154

IN13 4 – 178

IN14 3 – 178

IN15 2 – 178

IN16 1 – 178

IN17 4 – 155

IN18 3 – 155

IN19 2 – 155

IN20 1 – 155

IN21 4 – 179

IN22 3 – 179

IN23 2 – 179

IN24 1 – 179

IN25 4 – 156

IN26 3 – 156

IN27 2 – 156

IN28 1 – 156

IN29 4 – 180

IN30 3 – 180

IN31 2 – 180

IN32 1 – 180

T-CONVERTER02

IC NO.

4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1

10#

IC2C

105

4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1

106 105 106 105 106 105 106

57 58 57 58 57 58 57

58 107 108 107 108 107 108 107 108

60 109 110 109 110 109 110 109 110

62 111 112 111 112 111 112 111 112

4–157

3–157

2–157

1–157

4–181

3–181

2–181

1–181

4–158

3–158

2–158

1–158

4–182

3–182

2–182

1–182

4–159

3–159

2–159

1–159

4–183

3–183

2–183

1–183

4–160

3–160

2–160

1–160

4–184

3–184

2–184

1–184

IC3D5#IC5B

113 114 113 114 113 114 113 114

65 66 65 66 65 66 65

66 115 116 115 116 115 116 115 116

68 127 128 127 128 127 128 127 128

80 125 126 125 126 125 126 125 126

4–161

3–161

2–161

1–161

4–185

3–185

2–185

1–185

4–162

3–162

2–162

1–162

4–186

3–186

2–186

1–186

4–163

3–163

2–163

1–163

4–187

3–187

2–187

1–187

4–164

3–164

2–164

1–164

4–188

3–188

2–188

1–188

4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1

IC5D7#IC0A

123 124 123 124 123 124 123 124

75 76 75 76 75 76 75

76 121 122 121 122 121 122 121 122

74 119 120 119 120 119 120 119 120

72 117 118 117 118 117 118 117 118

4–176

3–176

2–176

1–176

4–200

3–200

2–200

1–200

4–175

3–175

2–175

1–175

4–199

3–199

2–199

1–199

4–174

3–174

2–174

1–174

4–198

3–198

2–198

1–198

4–173

3–173

2–173

1–173

4–197

3–197

2–197

1–197

4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1

IC0C9#IC2A

129 130 129 130 129 130 129 130

81 82 81 82 81 82 81

82 131 132 131 132 131 132 131 132

84 133 134 133 134 133 134 133 134

86 135 136 135 136 135 136 135 136

4–172

3–172

2–172

1–172

4–196

3–196

2–196

1–196

4–171

3–171

2–171

1–171

4–195

3–195

2–195

1–195

4–170

3–170

2–170

1–170

4–194

3–194

2–194

1–194

4–169

3–169

2–169

1–169

4–193

3–193

2–193

1–193

4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1

137 138 137 138 137 138 137 138

89 90 89 90 89 90 89

90 139 140 139 140 139 140 139 140

92 151 152 151 152 151 152 151 152 103 104 103 104 103 104 103 104 149 150 149 150 149 150 149 150 101 102 101 102 101 102 101 102

11#

IC4A

4 – 168

3 – 168

2 – 168

1 – 168

4 – 192

3 – 192

2 – 192

1 – 192

4 – 167

3 – 167

2 – 167

1 – 167

4 – 191

3 – 191

2 – 191

1 – 191

4 – 166

3 – 166

2 – 166

1 – 166

4 – 190

3 – 190

2 – 190

1 – 190

4 – 165

3 – 165

2 – 165

1 – 165

4 – 189

3 – 189

2 – 189

1 – 189

4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1 4 4 3 3 2 2 1 1

12#

IC4C

147 148 147 148 147 148 147 148

100

99 100 145 146 145 146 145 146 145 146

98 143 144 143 144 143 144 143 144

96 141 142 141 142 141 142 141 142

No. 2D201-177EN*F

T-CONVERTER03

DCA

channel

IN10 3 – 250 3 – 226 3 – 254 3 – 230 3 – 258 3 – 234 3 – 271 3 – 247 3 – 267 3 – 243 3 – 263 3 – 239

IN11 2 – 250 2 – 226 2 – 254 2 – 230 2 – 258 2 – 234 2 – 271 2 – 247 2 – 267 2 – 243 2 – 263 2 – 239

IN12 1 – 250 1 – 226 1 – 254 1 – 230 1 – 258 1 – 234 1 – 271 1 – 247 1 – 267 1 – 243 1 – 263 1 – 239

IN13 4 – 274 4 – 202 4 – 278 4 – 206 4 – 282 4 – 210 4 – 295 4 – 223 4 – 291 4 – 219 4 – 287 4 – 215

IN14 3 – 274 3 – 202 3 – 278 3 – 206 3 – 282 3 – 210 3 – 295 3 – 223 3 – 291 3 – 219 3 – 287 3 – 215

IN15 2 – 274 2 – 202 2 – 278 2 – 206 2 – 282 2 – 210 2 – 295 2 – 223 2 – 291 2 – 219 2 – 287 2 – 215

IN16 1 – 274 1 – 202 1 – 278 1 – 206 1 – 282 1 – 210 1 – 295 1 – 223 1 – 291 1 – 219 1 – 287 1 – 215

IC ch

IN17 4 – 251 4 – 227 4 – 255 4 – 231 4 – 259 4 – 235 4 – 270 4 – 246 4 – 266 4 – 242 4 – 262 4 – 238

IN18 3 – 251 3 – 227 3 – 255 3 – 231 3 – 259 3 – 235 3 – 270 3 – 246 3 – 266 3 – 242 3 – 262 3 – 238

IN19 2 – 251 2 – 227 2 – 255 2 – 231 2 – 259 2 – 235 2 – 270 2 – 246 2 – 266 2 – 242 2 – 262 2 – 238

IN20 1 – 251 1 – 227 1 – 255 1 – 231 1 – 259 1 – 235 1 – 270 1 – 246 1 – 266 1 – 242 1 – 262 1 – 238

IN21 4 – 275 4 – 203 4 – 279 4 – 207 4 – 283 4 – 211 4 – 294 4 – 222 4 – 290 4 – 218 4 – 286 4 – 214

IN22 3 – 275 3 – 203 3 – 279 3 – 207 3 – 283 3 – 211 3 – 294 3 – 222 3 – 290 3 – 218 3 – 286 3 – 214

IN23 2 – 275 2 – 203 2 – 279 2 – 207 2 – 283 2 – 211 2 – 294 2 – 222 2 – 290 2 – 218 2 – 286 2 – 214

IN24 1 – 275 1 – 203 1 – 279 1 – 207 1 – 283 1 – 211 1 – 294 1 – 222 1 – 290 1 – 218 1 – 286 1 – 214

IN25 4 – 252 4 – 228 4 – 256 4 – 232 4 – 260 4 – 236 4 – 269 4 – 245 4 – 265 4 – 241 4 – 261 4 – 237

IN26 3 – 252 3 – 228 3 – 256 3 – 232 3 – 260 3 – 236 3 – 269 3 – 245 3 – 265 3 – 241 3 – 261 3 – 237

IN27 2 – 252 2 – 228 2 – 256 2 – 232 2 – 260 2 – 236 2 – 269 2 – 245 2 – 265 2 – 241 2 – 261 2 – 237

IN28 1 – 252 1 – 228 1 – 256 1 – 232 1 – 260 1 – 236 1 – 269 1 – 245 1 – 265 1 – 241 1 – 261 1 – 237

IN29 4 – 276 4 – 204 4 – 280 4 – 208 4 – 284 4 – 212 4 – 293 4 – 221 4 – 289 4 – 217 4 – 285 4 – 213

IN30 3 – 276 3 – 204 3 – 280 3 – 208 3 – 284 3 – 212 3 – 293 3 – 221 3 – 289 3 – 217 3 – 285 3 – 213

IN31 2 – 276 2 – 204 2 – 280 2 – 208 2 – 284 2 – 212 2 – 293 2 – 221 2 – 289 2 – 217 2 – 285 2 – 213

IN32 1 – 276 1 – 204 1 – 280 1 – 208 1 – 284 1 – 212 1 – 293 1 – 221 1 – 289 1 – 217 1 – 285 1 – 213

IC1B2#IC1D3#IC3B

IN1 4 – 249 4 – 225 4 – 253 4 – 229 4 – 257 4 – 233 4 – 272 4 – 248 4 – 268 4 – 244 4 – 264 4 – 240

IN2 3 – 249 3 – 225 3 – 253 3 – 229 3 – 257 3 – 233 3 – 272 3 – 248 3 – 268 3 – 244 3 – 264 3 – 240

IN3 2 – 249 2 – 225 2 – 253 2 – 229 2 – 257 2 – 233 2 – 272 2 – 248 2 – 268 2 – 244 2 – 264 2 – 240

IN4 1 – 249 1 – 225 1 – 253 1 – 229 1 – 257 1 – 233 1 – 272 1 – 248 1 – 268 1 – 244 1 – 264 1 – 240

IN5 4 – 273 4 – 201 4 – 277 4 – 205 4 – 281 4 – 209 4 – 296 4 – 224 4 – 292 4 – 220 4 – 288 4 – 216

IN6 3 – 273 3 – 201 3 – 277 3 – 205 3 – 281 3 – 209 3 – 296 3 – 224 3 – 292 3 – 220 3 – 288 3 – 216

IN7 2 – 273 2 – 201 2 – 277 2 – 205 2 – 281 2 – 209 2 – 296 2 – 224 2 – 292 2 – 220 2 – 288 2 – 216

IN8 1 – 273 1 – 201 1 – 277 1 – 205 1 – 281 1 – 209 1 – 296 1 – 224 1 – 292 1 – 220 1 – 288 1 – 216

IN9 4 – 250 4 – 226 4 – 254 4 – 230 4 – 258 4 – 234 4 – 271 4 – 247 4 – 267 4 – 243 4 – 263 4 – 239

IC3D5#IC5B

IC NO.

IC5D7#IC0A

IC0C9#IC2A

10#

IC2C

11#

IC4A

12#

IC4C

No. 2D201-177EN*F

T-CONVERTER04

DCA

channel

IN10 3 – 346 3 – 322 3 – 350 3 – 326 3 – 354 3 – 330 3 – 367 3 – 343 3 – 363 3 – 339 3 – 359 3 – 335

IN11 2 – 346 2 – 322 2 – 350 2 – 326 2 – 354 2 – 330 2 – 367 2 – 343 2 – 363 2 – 339 2 – 359 2 – 335

IN12 1 – 346 1 – 322 1 – 350 1 – 326 1 – 354 1 – 330 1 – 367 1 – 343 1 – 363 1 – 339 1 – 359 1 – 335

IN13 4 – 370 4 – 298 4 – 374 4 – 302 4 – 378 4 – 306 4 – 391 4 – 319 4 – 387 4 – 315 4 – 383 4 – 311

IN14 3 – 370 3 – 298 3 – 374 3 – 302 3 – 378 3 – 306 3 – 391 3 – 319 3 – 387 3 – 315 3 – 383 3 – 311

IN15 2 – 370 2 – 298 2 – 374 2 – 302 2 – 378 2 – 306 2 – 391 2 – 319 2 – 387 2 – 315 2 – 383 2 – 311

IN16 1 – 370 1 – 298 1 – 374 1 – 302 1 – 378 1 – 306 1 – 391 1 – 319 1 – 387 1 – 315 1 – 383 1 – 311

IC ch

IN17 4 – 347 4 – 323 4 – 351 4 – 327 4 – 355 4 – 331 4 – 366 4 – 342 4 – 362 4 – 338 4 – 358 4 – 334

IN18 3 – 347 3 – 323 3 – 351 3 – 327 3 – 355 3 – 331 3 – 366 3 – 342 3 – 362 3 – 338 3 – 358 3 – 334

IN19 2 – 347 2 – 323 2 – 351 2 – 327 2 – 355 2 – 331 2 – 366 2 – 342 2 – 362 2 – 338 2 – 358 2 – 334

IN20 1 – 347 1 – 323 1 – 351 1 – 327 1 – 355 1 – 331 1 – 366 1 – 342 1 – 362 1 – 338 1 – 358 1 – 334

IN21 4 – 371 4 – 299 4 – 375 4 – 303 4 – 379 4 – 307 4 – 390 4 – 318 4 – 386 4 – 314 4 – 382 4 – 310

IN22 3 – 371 3 – 299 3 – 375 3 – 303 3 – 379 3 – 307 3 – 390 3 – 318 3 – 386 3 – 314 3 – 382 3 – 310

IN23 2 – 371 2 – 299 2 – 375 2 – 303 2 – 379 2 – 307 2 – 390 2 – 318 2 – 386 2 – 314 2 – 382 2 – 310

IN24 1 – 371 1 – 299 1 – 375 1 – 303 1 – 379 1 – 307 1 – 390 1 – 318 1 – 386 1 – 314 1 – 382 1 – 310

IN25 4 – 348 4 – 324 4 – 352 4 – 328 4 – 356 4 – 332 4 – 365 4 – 341 4 – 361 4 – 337 4 – 357 4 – 333

IN26 3 – 348 3 – 324 3 – 352 3 – 328 3 – 356 3 – 332 3 – 365 3 – 341 3 – 361 3 – 337 3 – 357 3 – 333

IN27 2 – 348 2 – 324 2 – 352 2 – 328 2 – 356 2 – 332 2 – 365 2 – 341 2 – 361 2 – 337 2 – 357 2 – 333

IN28 1 – 348 1 – 324 1 – 352 1 – 328 1 – 356 1 – 332 1 – 365 1 – 341 1 – 361 1 – 337 1 – 357 1 – 333

IN29 4 – 372 4 – 300 4 – 376 4 – 304 4 – 380 4 – 308 4 – 389 4 – 317 4 – 385 4 – 313 4 – 381 4 – 309

IN30 3 – 372 3 – 300 3 – 376 3 – 304 3 – 380 3 – 308 3 – 389 3 – 317 3 – 385 3 – 313 3 – 381 3 – 309

IN31 2 – 372 2 – 300 2 – 376 2 – 304 2 – 380 2 – 308 2 – 389 2 – 317 2 – 385 2 – 313 2 – 381 2 – 309

IN32 1 – 372 1 – 300 1 – 376 1 – 304 1 – 380 1 – 308 1 – 389 1 – 317 1 – 385 1 – 313 1 – 381 1 – 309

IC1B2#IC1D3#IC3B

IN1 4 – 345 4 – 321 4 – 349 4 – 325 4 – 353 4 – 329 4 – 368 4 – 344 4 – 364 4 – 340 4 – 360 4 – 336

IN2 3 – 345 3 – 321 3 – 349 3 – 325 3 – 353 3 – 329 3 – 368 3 – 344 3 – 364 3 – 340 3 – 360 3 – 336

IN3 2 – 345 2 – 321 2 – 349 2 – 325 2 – 353 2 – 329 2 – 368 2 – 344 2 – 364 2 – 340 2 – 360 2 – 336

IN4 1 – 345 1 – 321 1 – 349 1 – 325 1 – 353 1 – 329 1 – 368 1 – 344 1 – 364 1 – 340 1 – 360 1 – 336

IN5 4 – 369 4 – 297 4 – 373 4 – 301 4 – 377 4 – 305 4 – 392 4 – 320 4 – 388 4 – 316 4 – 384 4 – 312

IN6 3 – 369 3 – 297 3 – 373 3 – 301 3 – 377 3 – 305 3 – 392 3 – 320 3 – 388 3 – 316 3 – 384 3 – 312

IN7 2 – 369 2 – 297 2 – 373 2 – 301 2 – 377 2 – 305 2 – 392 2 – 320 2 – 388 2 – 316 2 – 384 2 – 312

IN8 1 – 369 1 – 297 1 – 373 1 – 301 1 – 377 1 – 305 1 – 392 1 – 320 1 – 388 1 – 316 1 – 384 1 – 312

IN9 4 – 346 4 – 322 4 – 350 4 – 326 4 – 354 4 – 330 4 – 367 4 – 343 4 – 363 4 – 339 4 – 359 4 – 335

IC3D5#IC5B

IC NO.

IC5D7#IC0A

IC0C9#IC2A

10#

IC2C

11#

IC4A

12#

IC4C

No. 2D201-177EN*F

T-CONVERTER05

DCA

channel

IN10 3 – 442 3 – 418 3 – 446 3 – 422 3 – 450 3 – 426 3 – 463 3 – 439 3 – 459 3 – 435 3 – 455 3 – 431

IN11 2 – 442 2 – 418 2 – 446 2 – 422 2 – 450 2 – 426 2 – 463 2 – 439 2 – 459 2 – 435 2 – 455 2 – 431

IN12 1 – 442 1 – 418 1 – 446 1 – 422 1 – 450 1 – 426 1 – 463 1 – 439 1 – 459 1 – 435 1 – 455 1 – 431

IN13 4 – 466 4 – 394 4 – 470 4 – 398 4 – 474 4 – 402 4 – 487 4 – 415 4 – 483 4 – 411 4 – 479 4 – 407

IN14 3 – 466 3 – 394 3 – 470 3 – 398 3 – 474 3 – 402 3 – 487 3 – 415 3 – 483 3 – 411 3 – 479 3 – 407

IN15 2 – 466 2 – 394 2 – 470 2 – 398 2 – 474 2 – 402 2 – 487 2 – 415 2 – 483 2 – 411 2 – 479 2 – 407

IN16 1 – 466 1 – 394 1 – 470 1 – 398 1 – 474 1 – 402 1 – 487 1 – 415 1 – 483 1 – 411 1 – 479 1 – 407

IC ch

IN17 4 – 443 4 – 419 4 – 447 4 – 423 4 – 451 4 – 427 4 – 462 4 – 438 4 – 458 4 – 434 4 – 454 4 – 430

IN18 3 – 443 3 – 419 3 – 447 3 – 423 3 – 451 3 – 427 3 – 462 3 – 438 3 – 458 3 – 434 3 – 454 3 – 430

IN19 2 – 443 2 – 419 2 – 447 2 – 423 2 – 451 2 – 427 2 – 462 2 – 438 2 – 458 2 – 434 2 – 454 2 – 430

IN20 1 – 443 1 – 419 1 – 447 1 – 423 1 – 451 1 – 427 1 – 462 1 – 438 1 – 458 1 – 434 1 – 454 1 – 430

IN21 4 – 467 4 – 395 4 – 471 4 – 399 4 – 475 4 – 403 4 – 486 4 – 414 4 – 482 4 – 410 4 – 478 4 – 406

IN22 3 – 467 3 – 395 3 – 471 3 – 399 3 – 475 3 – 403 3 – 486 3 – 414 3 – 482 3 – 410 3 – 478 3 – 406

IN23 2 – 467 2 – 395 2 – 471 2 – 399 2 – 475 2 – 403 2 – 486 2 – 414 2 – 482 2 – 410 2 – 478 2 – 406

IN24 1 – 467 1 – 395 1 – 471 1 – 399 1 – 475 1 – 403 1 – 486 1 – 414 1 – 482 1 – 410 1 – 478 1 – 406

IN25 4 – 444 4 – 420 4 – 448 4 – 424 4 – 452 4 – 428 4 – 461 4 – 437 4 – 457 4 – 433 4 – 453 4 – 429

IN26 3 – 444 3 – 420 3 – 448 3 – 424 3 – 452 3 – 428 3 – 461 3 – 437 3 – 457 3 – 433 3 – 453 3 – 429

IN27 2 – 444 2 – 420 2 – 448 2 – 424 2 – 452 2 – 428 2 – 461 2 – 437 2 – 457 2 – 433 2 – 453 2 – 429

IN28 1 – 444 1 – 420 1 – 448 1 – 424 1 – 452 1 – 428 1 – 461 1 – 437 1 – 457 1 – 433 1 – 453 1 – 429

IN29 4 – 468 4 – 396 4 – 472 4 – 400 4 – 476 4 – 404 4 – 485 4 – 413 4 – 481 4 – 409 4 – 477 4 – 405

IN30 3 – 468 3 – 396 3 – 472 3 – 400 3 – 476 3 – 404 3 – 485 3 – 413 3 – 481 3 – 409 3 – 477 3 – 405

IN31 2 – 468 2 – 396 2 – 472 2 – 400 2 – 476 2 – 404 2 – 485 2 – 413 2 – 481 2 – 409 2 – 477 2 – 405

IN32 1 – 468 1 – 396 1 – 472 1 – 400 1 – 476 1 – 404 1 – 485 1 – 413 1 – 481 1 – 409 1 – 477 1 – 405

IC1B2#IC1D3#IC3B

IN1 4 – 441 4 – 417 4 – 445 4 – 421 4 – 449 4 – 425 4 – 464 4 – 440 4 – 460 4 – 436 4 – 456 4 – 432

IN2 3 – 441 3 – 417 3 – 445 3 – 421 3 – 449 3 – 425 3 – 464 3 – 440 3 – 460 3 – 436 3 – 456 3 – 432

IN3 2 – 441 2 – 417 2 – 445 2 – 421 2 – 449 2 – 425 2 – 464 2 – 440 2 – 460 2 – 436 2 – 456 2 – 432

IN4 1 – 441 1 – 417 1 – 445 1 – 421 1 – 449 1 – 425 1 – 464 1 – 440 1 – 460 1 – 436 1 – 456 1 – 432

IN5 4 – 465 4 – 393 4 – 469 4 – 397 4 – 473 4 – 401 4 – 488 4 – 416 4 – 484 4 – 412 4 – 480 4 – 408

IN6 3 – 465 3 – 393 3 – 469 3 – 397 3 – 473 3 – 401 3 – 488 3 – 416 3 – 484 3 – 412 3 – 480 3 – 408

IN7 2 – 465 2 – 393 2 – 469 2 – 397 2 – 473 2 – 401 2 – 488 2 – 416 2 – 484 2 – 412 2 – 480 2 – 408

IN8 1 – 465 1 – 393 1 – 469 1 – 397 1 – 473 1 – 401 1 – 488 1 – 416 1 – 484 1 – 412 1 – 480 1 – 408

IN9 4 – 442 4 – 418 4 – 446 4 – 422 4 – 450 4 – 426 4 – 463 4 – 439 4 – 459 4 – 435 4 – 455 4 – 431

IC3D5#IC5B

IC NO.

IC5D7#IC0A

IC0C9#IC2A

10#

IC2C

11#

IC4A

12#

IC4C

No. 2D201-177EN*F

T-CONVERTER06

DCA

channel

IN10 3 – 538 3 – 514 3 – 542 3 – 518 3 – 546 3 – 522 3 – 559 3 – 535 3 – 555 3 – 531 3 – 551 3 – 527

IN11 2 – 538 2 – 514 2 – 542 2 – 518 2 – 546 2 – 522 2 – 559 2 – 535 2 – 555 2 – 531 2 – 551 2 – 527

IN12 1 – 538 1 – 514 1 – 542 1 – 518 1 – 546 1 – 522 1 – 559 1 – 535 1 – 555 1 – 531 1 – 551 1 – 527

IN13 4 – 562 4 – 490 4 – 566 4 – 494 4 – 570 4 – 498 4 – 583 4 – 511 4 – 579 4 – 507 4 – 575 4 – 503

IN14 3 – 562 3 – 490 3 – 566 3 – 494 3 – 570 3 – 498 3 – 583 3 – 511 3 – 579 3 – 507 3 – 575 3 – 503

IN15 2 – 562 2 – 490 2 – 566 2 – 494 2 – 570 2 – 498 2 – 583 2 – 511 2 – 579 2 – 507 2 – 575 2 – 503

IN16 1 – 562 1 – 490 1 – 566 1 – 494 1 – 570 1 – 498 1 – 583 1 – 511 1 – 579 1 – 507 1 – 575 1 – 503

IC ch

IN17 4 – 539 4 – 515 4 – 543 4 – 519 4 – 547 4 – 523 4 – 558 4 – 534 4 – 554 4 – 530 4 – 550 4 – 526

IN18 3 – 539 3 – 515 3 – 543 3 – 519 3 – 547 3 – 523 3 – 558 3 – 534 3 – 554 3 – 530 3 – 550 3 – 526

IN19 2 – 539 2 – 515 2 – 543 2 – 519 2 – 547 2 – 523 2 – 558 2 – 534 2 – 554 2 – 530 2 – 550 2 – 526

IN20 1 – 539 1 – 515 1 – 543 1 – 519 1 – 547 1 – 523 1 – 558 1 – 534 1 – 554 1 – 530 1 – 550 1 – 526

IN21 4 – 563 4 – 491 4 – 567 4 – 495 4 – 571 4 – 499 4 – 582 4 – 510 4 – 578 4 – 506 4 – 574 4 – 502

IN22 3 – 563 3 – 491 3 – 567 3 – 495 3 – 571 3 – 499 3 – 582 3 – 510 3 – 578 3 – 506 3 – 574 3 – 502

IN23 2 – 563 2 – 491 2 – 567 2 – 495 2 – 571 2 – 499 2 – 582 2 – 510 2 – 578 2 – 506 2 – 574 2 – 502

IN24 1 – 563 1 – 491 1 – 567 1 – 495 1 – 571 1 – 499 1 – 582 1 – 510 1 – 578 1 – 506 1 – 574 1 – 502

IN25 4 – 540 4 – 516 4 – 544 4 – 520 4 – 548 4 – 524 4 – 557 4 – 533 4 – 553 4 – 529 4 – 549 4 – 525

IN26 3 – 540 3 – 516 3 – 544 3 – 520 3 – 548 3 – 524 3 – 557 3 – 533 3 – 553 3 – 529 3 – 549 3 – 525

IN27 2 – 540 2 – 516 2 – 544 2 – 520 2 – 548 2 – 524 2 – 557 2 – 533 2 – 553 2 – 529 2 – 549 2 – 525

IN28 1 – 540 1 – 516 1 – 544 1 – 520 1 – 548 1 – 524 1 – 557 1 – 533 1 – 553 1 – 529 1 – 549 1 – 525

IN29 4 – 564 4 – 492 4 – 568 4 – 496 4 – 572 4 – 500 4 – 581 4 – 509 4 – 577 4 – 505 4 – 573 4 – 501

IN30 3 – 564 3 – 492 3 – 568 3 – 496 3 – 572 3 – 500 3 – 581 3 – 509 3 – 577 3 – 505 3 – 573 3 – 501

IN31 2 – 564 2 – 492 2 – 568 2 – 496 2 – 572 2 – 500 2 – 581 2 – 509 2 – 577 2 – 505 2 – 573 2 – 501

IN32 1 – 564 1 – 492 1 – 568 1 – 496 1 – 572 1 – 500 1 – 581 1 – 509 1 – 577 1 – 505 1 – 573 1 – 501

IC1B2#IC1D3#IC3B

IN1 4 – 537 4 – 513 4 – 541 4 – 517 4 – 545 4 – 521 4 – 560 4 – 536 4 – 556 4 – 532 4 – 552 4 – 528

IN2 3 – 537 3 – 513 3 – 541 3 – 517 3 – 545 3 – 521 3 – 560 3 – 536 3 – 556 3 – 532 3 – 552 3 – 528

IN3 2 – 537 2 – 513 2 – 541 2 – 517 2 – 545 2 – 521 2 – 560 2 – 536 2 – 556 2 – 532 2 – 552 2 – 528

IN4 1 – 537 1 – 513 1 – 541 1 – 517 1 – 545 1 – 521 1 – 560 1 – 536 1 – 556 1 – 532 1 – 552 1 – 528

IN5 4 – 561 4 – 489 4 – 565 4 – 493 4 – 569 4 – 497 4 – 584 4 – 512 4 – 580 4 – 508 4 – 576 4 – 504

IN6 3 – 561 3 – 489 3 – 565 3 – 493 3 – 569 3 – 497 3 – 584 3 – 512 3 – 580 3 – 508 3 – 576 3 – 504

IN7 2 – 561 2 – 489 2 – 565 2 – 493 2 – 569 2 – 497 2 – 584 2 – 512 2 – 580 2 – 508 2 – 576 2 – 504

IN8 1 – 561 1 – 489 1 – 565 1 – 493 1 – 569 1 – 497 1 – 584 1 – 512 1 – 580 1 – 508 1 – 576 1 – 504

IN9 4 – 538 4 – 514 4 – 542 4 – 518 4 – 546 4 – 522 4 – 559 4 – 535 4 – 555 4 – 531 4 – 551 4 – 527

IC3D5#IC5B

IC NO.

IC5D7#IC0A

IC0C9#IC2A

10#

IC2C

11#

IC4A

12#

IC4C

No. 2D201-177EN*F

100

Toshiba Alexion Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual