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Table Of Contents - Toshiba Aplio SSA-770A Service Manual

Diagnostic ultrasound system

Table Of Contents

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Table of Contents

Safety Precautions4

Meaning Of Signal Words4

Meaning Of Safety Symbols4

Table Of Contents10

Pwb Configuration Of Each Unit16

Block Diagram17

Disassembly And Removal Procedures18

Name Of Each Section18

Removing The Covers22

Removing The Left Side Cover22

Removing The Right Side Cover22

Removing The Left Side Cover For Peripheral Units22

For The Ssa-77Oa22

Removing The Base Rear Cove23

For The Ssa-7Ooa24

Removing The Handle Covers25

Removing The Handle27

For The Ssf+7Ooa27

Removing The Monitor Unit (For Systems With The Crt Monitor)29

Removing The Monitor Unit From The Boss30

Removing The Monitor Unit (For Systems With The Lcd Monitor)31

Removing The Lcd Monitor Arm32

Adjusting The Lcd Monitor Arm Vertical Movement Resistance35

Removing The Operating Panel36

For The Ssf+77Oa36

Removing The Bellows37

Removing The Front/Rear Sliding Wire37

Removing The Up/Down Sliding Wire38

Removing The Cables39

Remove The Operating Panel From The System39

Disassembling The Operating Panel41

Removing The Lower Cover41

Removing The Upper Panel44

Removing The Trackball Section46

Removing The Pwbs (B) And (G)47

Removing The Keyboard48

Removing The Lcd /.L,Ssy50

Removing The Pwbs (C), (D), And (E)51

Removing The Near/Away Slide Lever52

Removing The Up/Down Slide Lever53

Mounting The Switch Cover54

Removing The Pwb Rack55

Removing The Pwbs57

Removing The Ti58

Removing The Io59

Removing The Hdd Unit60

Removing The Battery61

Removing The Ac-Dc Unit62

Removing The Psa And Psd65

Removing The Left Side Cover And Ac-Dc Unit65

Removing The Fan-Box65

Removing The Transformer66

Removing The Mo67

Removing The Front Panel68

Removing The Cables Connected To The Mo70

For The Ssf!,-7Ooa71

Removing The Rear Panel72

Removing The Physio Unit73

Removing The Physlo Unit74

For The Ssf+77()A74

Removing The Caster Units75

Removing The Blocks77

Cleaning The Air Filters79

Removing And Cleaning The Air Filters (For Service Engineers)79

Cleaning The Panel80

Cleaning Of Key Tops80

Cleaning Procedures For Parts Other Than Key Tops80

Adjusting The Operating Panel Locking Wire81

Adjusting The Up/Down Slide Wire81

Adjusting The Near/Away Slide Wire83

Replacing The Operating Panel Locking Wire84

Replacing The Up/Down Slide Wire84

Removing The Up/Down Slide Wire (At The Support Unit Side)85

Replacing The Near/Away Slide Wire89

Removing The Near/Away Slide Wire (At The Support Unit Side)95

Removing The Cd-R Unit97

Cleaning The Mo Drive99

Cleaning The Palm Switch100

Cleaning Procedures For The Old-Type Palm Switch100

Cleaning Procedures For The New-Type Palm Switch102

Operation Of Each Pwb104

Front-End Unit104

Flow Of Signals In The Front-End105

Transmission105

Reception System105

Scw Transmission/Reception105

Differences In The Pwbs In The Pv Series106

Calibration And Tests Required When The Board Is Repaired/Replaced106

When The Ti Board Is Replaced106

When The Tr/Rc/Cb Board Is Replaced106

Description Of Functions And Operation108

Array Transducer Switching108

Support Of The M-Tee Transducer108

Support Of Transducer With Impedance Converter108

Error Detection109

Hv Fault Error109

Hv Detection Fault Error109

Hv Diode Fault Error109

Equivalent Boards In Pv8000110

Differences Relative To Pv8000110

Transducer Interface Block Diagram111

Transmit Pulser112

Transmit Pulse Generation112

Preamplifier And Variable Gain Amplifier (Functions In Rxar Asic)112

Antialiasing Filter (Functions In Rxar Asic)112

Address Decoder (Epld) And Tc Bus113

Reception Resonance113

Fault Detection And Protection Circuit113

Comparison With Pv8000114

Rcb116

System Clock Generation: Clock Generation117

Diagnostic Circuit Block117

Excessive Transmission Voltage Detection117

Tee Transducer Head High-Temperature117

Cb120

Scw Summation120

Quadrature Demodulation Circuit120

Pencil Cw Tx/Rx Circuit120

Description Of Operation121

Selectable Bpf121

Baseband Filter121

Selectable Gain Amp122

Adc122

Clock Generation122

Pencil Cw Transmitter/Receiver122

Cb Address Decoder (Epld)123

Adjustment Points124

Equivalent Units In The Pv Series136

Vi (Video Interface)138

Explanation Of The Block Diagram139

Ntsupal Encoder Interface140

External Ntsc140

Ntsc Vertical Line Timing141

External Pal141

Pal Vertical Line Timing142

Rm (Realtime Manager)144

Cpu And Chip Set144

Graphics Card144

Jumper Setting145

Block Diagram Of The Rm146

System-Related Boards150

I/O150

Statuses Indicated By The Status Leds151

Operating Panel154

Additional Terms155

Usb Connection155

Power Supply Unit Configuration156

Block Diagram Of The Power Supply Unit156

Unit Specifications157

Transformer Tray158

Voltage Setting For Replacing The Transformer159

Description Of Each Connector160

Oem Ac Output160

P41 Monitor Ac Output160

J51 Ac Output For The Ac/Dc Tray160

Psa/Psd Unit161

Psaipsd Unit162

Psd163

Precautions For Operational Checks163

Test Point Location164

Test Point Voltage In The Normal Status164

Psd Block Diagram166

Leds For Error Display167

Monitor Adjustment168

Self-Test Pattern And Degaussing Function168

Osd Adjustment169

Starting And Terminating The Menu169

Operating The Menu169

Size & Position171

Color Temperature171

Advanced Controls171

Monitor Status172

Service Mode173

List Of Functions Available In The Service Mode Menu175

Details Of The Service Mode Menu176

Power Save Mode177

Forced Power Save Mode177

Automatic Power Save Mode177

Starting Up The Adjustment Guide File And Adjusting Image Quality178

To Eliminate Vertical Stripes On The Screen180

To Eliminate Flickering Or Bleeding180

To Adjust The Display Position181

Physio Module184

Software Organization188

Io.1 Overall Folder Configuration188

Io.2 Version Information189

Error Handling190

Error Log Operation190

Error Messages191

Error Levels (Severity)191

Error Log Operation (Facility)192

Setting The Preset Menu193

Outline Of Each Preset193

Basic Preset Architecture193

System Preset193

Imaging Preset194

Preset Structure195

Imaging Preset Structure196

Setting And Changing Presets197

Preset Selection On The Patient Information197

Exam Type Preset Setting198

Application Preset Setting200

Changing Imaging Preset Or Application Preset During An Examination201

When The Imaging Preset Is Changed201

When The Application Preset Is Changed201

Preset Editors202

System Preset Editor (Not Applicable To Exam Type)202

Exam Type Editor204

Application Preset Editor205

Description Of Preset Parameters206

General Settings207

Peripheral System208

Exam Information210

Other Setting214

Meas. Window216

D-Mode Meas.219

Meas. Report2223

Meas. Marker224

Tic227

Cardiac Doppler238

Carotid1 Doppler241

Carotid1 Meas. Tool242

Carotid2 Doppler243

Carotid1 Meas. Type244

Carotid2 Meas. Type245

Carotid2 Meas. Tool246

Act (Option)247

Backing Up The Users Data250

Backing Up The Preset Data250

Changing The Pc Name251

N Ejwork Connection251

Upgrading The Software254

Selection Of The Panel Switch Layout255

Standard Panel Switch Layout255

Changing The Panel Configuration File255

Panel Switch Layout And Switch Functions After Configuration256

Cardiac (Cardiacbat)258

Tmse/Tams Abdomen (Tmse-Tams-Abd.bat)259

Tams Left-Handed260

Attaching The Label261

Date/Time Setting Change262

To Change The System Time Only262

To Change The System Date And Time262

3D Position Sensor265

3D Position Sensor Unit265

Position Sensor Transmitter267

Attaching The Position Sensor Receiver To A Transducer267

Positional Data268

Magnetic Field Distortion Check Tool269

Principle Of Magnetic Field Distortion Check269

Magnetic Field Distortion Check270

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