Ultrasound Technologies PD1 series Service Manual Download Page 2

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Ultrasound Technologies Ltd

Products covered by this service manual

PD1 series
pocket dopplers

Product Group

Product version

Product variation

PD1 audio pocket
doppler

Babypulse home use
doppler

Fetatrack 120 audio
doppler

PD1+ fetal doppler
with FHR display

PD1v vascular
doppler

Fetatrack 120+ fetal
doppler with FHR

PD1dwr waterbirth
doppler

PD1cv low cost
vascular doppler

PD1v flat probe
vascular doppler

PD1combi fetal /
vascular doppler

Vascutrack 120
vascular doppler

PD1 / FT120 service manual Issue 3 January 2007

©Ultrasound Technologies Ltd, Lodge Way, Portskewett, Caldicot, South Wales NP26 5PS, United Kingdom.

T +44 (0) 1291 425425 F: +44 (0) 1291 427093

E: [email protected] W: www.doppler.co.uk

Summary of Contents for PD1 series

Page 1: ...es Dopplers Service manual PD1 FT120 service manual Issue 3 January 2007 Ultrasound Technologies Ltd Lodge Way Portskewett Caldicot South Wales NP26 5PS United Kingdom T 44 0 1291 425425 F 44 0 1291 4...

Page 2: ...R display PD1v vascular doppler Fetatrack 120 fetal doppler with FHR PD1dwr waterbirth doppler PD1cv low cost vascular doppler PD1v flat probe vascular doppler PD1combi fetal vascular doppler Vascutra...

Page 3: ...d by this service manual The following products are manufactured by Ultrasound Technologies ltd Lodge Way Portskewett NP26 5PS United Kingdom Tel 44 0 1291 425425 Fax 44 0 1291 427093 Email service do...

Page 4: ...tor 3 6 3 1Receiver and Detector 3 7 3 2Audio Amplifier 3 8 3 3Velocity Processor 4 3Test and Calibration 4 1 3 4Introduction 4 2 3 5Performance Checks 4 3 3 6Test Procedure 4 4 3 7Audio Unit 4 5 3 8T...

Page 5: ...anufacturer or distributor for revision information Inspect the instrument upon receipt in the unlikely event that the unit has been damaged notify your distributor or Ultrasound Technologies directly...

Page 6: ...line Battery 1 2 5 2Symbols The following symbols have been used on the PD1 and are here defined according to IEC60601 IEC Symbol 878 02 02 Type B Equipment IEC Symbol 348 8 6Attention Consult accompa...

Page 7: ...pment However in the unlikely event that the unit causes an EM disturbance to adjacent equipment we suggest that the procedure is carried out out of range of the affected equipment Immunity If the use...

Page 8: ...obe fetatrack 120 and vascutrack 120 models Controls Rotary volume Indicators PD1 PD1 combi PD1v fetatrack 120 vascutrack 120 Yellow battery low LED Indicators PD1 PD1 combi PD1dwr fetatrack 120 3 dig...

Page 9: ...BATTERY LOW LED indicator to show when the battery has reached a point when it requires changing VOLUME CONTROL Rotary edge potentiometer which increases or decreases the setting of the volume HEADSET...

Page 10: ...of the volume HEADSET Audio output for connection to a stereo headset for private listening RS 232 Interface Serial data output for connection to the optional ULTRATRACE 2 PC software Connections are...

Page 11: ...ol BATTERY LOW LED indicator to show when the battery has reached a point when it requires changing VOLUME CONTROL Rotary edge potentiometer which increases or decreases the setting of the volume HEAD...

Page 12: ...re disconnected 2 5 5 9Audio Unit The Audio unit houses the main circuit board To remove the circuit board turn the unit onto it s front and remove the three M4 countersunk screws The rear panel will...

Page 13: ...er and battery connections are hard wired to the PCB De solder the connections at J4 retractile cable and J3 loudspeaker the PCB can then be pulled clear of the case Ultrasound Technologies Ltd Page 9...

Page 14: ...allow the assembly to be split along its length Gently prise the assembly apart The circuit board is bonded and keyed to the faceplate assembly using a high strength cyno acrylic adhesive Circuit boar...

Page 15: ...1 pin 3 the output on pin 2 switches on Q2 allowing current to flow into the various circuits The unit will remain switched on for approximately 5 minutes set by C4 and R5 after which it turns off aut...

Page 16: ...lly 1 5V Pk 3 6 6 6Receiver and Detector The reflected Doppler signal is fed via a resonant transformer L4 C25 to the gate of Q5 the drain of this FET connects to the source of Q4 to form a cascode am...

Page 17: ...pulse will be heard Check the unit for signs of damage particularly the transducer cable near the point of entry to the unit and transducer body 4 3 7 1Equipment Oscilloscope 2 channel 50 MHz bandwidt...

Page 18: ...5V pk pk 8 8Receiver Connect the oscilloscope to the junction of D2 and R12 adjust both L4 and L3 to maximise the DC signal Move the oscilloscope to J1 pin 4 carefully stroke the transducer faceplate...

Page 19: ...en switch is depressed Battery J1 pin 1 7V Battery Low LED on permanently Battery condition J1 pin 1 7V Replace battery U3 Comparator See test calibration section Excessive battery drain U1 Q2 ON OFF...

Page 20: ...nF Mono Ceramic 0805 series Z5U dielectric C1 6 8 14 17 5 Capacitor 0805 47nF Mono Ceramic 0805 series X7R dielectric C26 1 Capacitor 0805 10nF Mono Ceramic 0805 series X7R dielectric C4 36 2 Capacito...

Page 21: ...Samsung Phillips ROHM R17 1 Resistors 1 0805 47K Samsung Phillips ROHM R12 1 Resistors 1 0805 68K Samsung Phillips ROHM R11 14 2 Resistors 1 0805 100K Samsung Phillips ROHM R10 27 31 3 Resistors 1 080...

Page 22: ...gue LM386M 1 National U2 1 Diodes 10BQ040 IR D1 1 Diode LED Yellow Temic TLLY4401 D2 1 Transistor RFD8P05SM Harris Q2 1 Transistor BSS138 Fairchild Semiconductor Q1 1 Resistors 1 1206 10R Samsung Phil...

Page 23: ...ielectric C21 1 Capacitor 680pF COG Ceramic 0805 series COG dielectric C16 1 IC Analogue TL072CD SGS TI U1 1 Diodes BZX84C6V2 D1 1 Diodes BAT54 D2 1 Transistor MMBF4416LT1 Motorola Q2 4 5 3 Transistor...

Page 24: ...sound Technologies Ltd Faceplate PD1D102 1 Probe Cover PD1D101 2 M3 x16 Pozi C sk screw 1 M3 Full nut 1 Cover plug 2 Ultrasound Technologies Ltd Page 20 of 32 PD1 FT120 service manual Issue 3 January...

Page 25: ...Loudspeaker 1 Retractile cable PD1D100 1 Label front PD1D108 1 Label rear PD1D108 1 Front Membrane PD1D108 1 M3 x 6 Pozi Pan screw 2 M3 Internal shakeproof washer 2 M4 x 12 Pozi Pan screw 3 Fibre flat...

Page 26: ...r 1 Retractile cable PD1D100 1 Label front PD1 PD1D108 1 Label rear PD1D108 1 Front Membrane PD1 PD1D108 1 M3 x 6 Pozi Pan screw 2 M3 Internal shakeproof washer 2 M4 x 12 Pozi Pan screw 3 Fibre flat w...

Page 27: ...ologies Ltd 7 0 13Circuit Diagrams Engineering Drawings The following section contains circuit diagrams and Engineering Drawings Ultrasound Technologies Ltd Page 23 of 32 PD1 FT120 service manual Issu...

Page 28: ...Ultrasound Technologies Ltd PD1 Audio PCB Layout Ultrasound Technologies Ltd Page 24 of 32 PD1 FT120 service manual Issue 3 January 2007...

Page 29: ...Ultrasound Technologies Ltd 8 0PD1 Audio PCB Layout Ultrasound Technologies Ltd Page 25 of 32 PD1 FT120 service manual Issue 3 January 2007...

Page 30: ...gdom T 44 0 1291 425425 F 44 0 1291 427093 E ultratec doppler co uk W www doppler co uk Ultrasound Technologies Ltd 8 1PD1 Probe PCB Layout Ultrasound Technologies Ltd Lodge Way Portskewett Caldicot S...

Page 31: ...nologies Ltd 8 2PD1 General Assembly Ultrasound Technologies Ltd Lodge Way Portskewett Caldicot South Wales NP26 5PS United Kingdom T 44 0 1291 425425 F 44 0 1291 427093 E ultratec doppler co uk W www...

Page 32: ...nd Technologies Ltd 8 3PD1 GA Ultrasound Technologies Ltd Lodge Way Portskewett Caldicot South Wales NP26 5PS United Kingdom T 44 0 1291 425425 F 44 0 1291 427093 E ultratec doppler co uk W www dopple...

Page 33: ...logies Ltd 8 42MHz Transducer Assembly Ultrasound Technologies Ltd Lodge Way Portskewett Caldicot South Wales NP26 5PS United Kingdom T 44 0 1291 425425 F 44 0 1291 427093 E ultratec doppler co uk W w...

Page 34: ...1 1 10 58 44 PM J4 1 2 3 4 J3 1 2 J2 1 2 J1 1 2 LM386M U2 7 1 8 2 M 3 P 6 4 5 C13 10uF C14 10uF R9 10R Q2 RFD8P05SM 2 D 1 G 3 S U1 CD4013 11 CLK 9 D 10 RESET 8 SET 12 Q 13 Q U1 CD4013 3 CLK 5 D 4 RES...

Page 35: ...4 1 TL072 U1 5 I 6 I 8 4 7 C21 470pF C4 0u47F R8 0u47F R16 10R R17 10R R1 2K2 R2 2K2 R11 2K2 R15 1K5 R3 1K0 R 1K0 R13 100R R10 100K R18 100K R4 100K R12 100K R9 100K R5 100K R6 100K R19 100K L1 0841 1...

Page 36: ...J1 1 2 LM386M U3 7 1 8 2 M 3 P 6 4 5 C5 10uF C15 10uF C16 10uF R6 10R Q1 RFD8P05SM 2 D 1 G 3 S U2 CD4013 11 CLK 9 D 10 RESET 8 SET 12 Q 13 Q U2 CD4013 3 CLK 5 D 4 RESET 6 SET 2 Q 1 Q R7 2K2 C2 100uF...

Page 37: ...R19 10K R15 10K R13 10K R16 10K AT89C51 U8 10 RESET 21 X1 20 X2 35 EAVP 43 P00 42 P01 41 P02 40 P03 39 P04 38 P05 37 P06 36 P07 2 P10 3 P11 4 P12 5 P13 6 P14 7 P15 8 P16 9 P17 24 P20 25 P21 26 P22 27...

Page 38: ...ssue Drawn Ultrasound Technologies Ltd Gwent NP6 6BZ UK Itton Chepstow Foresters House Date of Sheet Name PD1VAS 1 10 19 00 1 1 3 24 04 PM J4 1 2 J2 1 2 J1 1 2 LM386M U2 7 1 8 2 M 3 P 6 4 5 C16 10uF C...

Page 39: ...S ZM33064Z U4 1 IN 3 OUT YEL_3MM D3 2 1 D1 10BQ040 2 1 South Wales NP26 5PS UK Portskewett Caldicot Lodge Way ultratec 2003 Copyright Drg No Date ECN Issue Drawn Ultrasound Technologies Ltd Date of Sh...

Page 40: ...4 1 TL072 U1 5 I 6 I 8 4 7 C21 470pF R16 10R R17 10R R1 2K2 R2 2K2 R11 2K2 R15 1K5 R3 1K0 R8 1K0 R13 100R R12 100K R10 100K R18 100K R4 100K R9 100K R5 100K R6 100K R19 100K L1 0841 1 2 3 BC848B Q1 1...

Page 41: ...L3 0842 1 3 L4 0838 1 3 4 6 J1 1 2 3 4 TL072 U1 3 I 2 I 8 4 1 TL072 U1 5 I 6 I 8 4 7 C21 470pF R16 10R R17 10R R1 2K2 R11 2K2 R15 1K5 R3 1K0 R8 1K0 R13 100R R12 100K R10 100K R18 100K R4 100K R9 100K...

Page 42: ...C14 10uF C15 10uF R6 10R Q1 RFD8P05SM 2 D 1 G 3 S U2 CD4013 11 CLK 9 D 10 RESET 8 SET 12 Q 13 Q U2 CD4013 3 CLK 5 D 4 RESET 6 SET 2 Q 1 Q R10 2K2 C18 100uF C21 100uF C11 100uF C10 100uF C2 100uF C9 10...

Page 43: ...C2 13 R1in 12 R1out 11 T1in 14 T1out ZR78L05G U8 3 IN 1 OUT J5 1 10 11 12 13 14 15 16 17 18 19 2 20 21 22 23 24 25 26 3 4 5 6 7 8 9 R16 22K R14 47K R12 68K R15 68K C30 47nF R22 330K R26 330K LM324M U5...

Page 44: ...hnologies Ltd Date of Sheet Name FETATR 1 1 1 J4 1 2 J1 1 2 LM386M U2 7 1 8 2 M 3 P 6 4 5 C16 10uF C17 10uF R12 10R R13 10R Q2 RFD8P05SM 2 D 1 G 3 S U1 CD4013 3 CLK 5 D 4 RESET 6 SET 2 Q 1 Q U1 CD4013...

Page 45: ...ins information of signals at key points throughout the specified product The following images are oscilloscope snap shots of signals acquired from the PD1 Audio and Power control board DC signal show...

Page 46: ...Q2 DRAIN Q2 GATE U3 PIN 1 U3 PIN 3 U1 PIN 1 UNIT SWITCHED ON U1 PIN 1 UNIT SWITCHED OFF...

Page 47: ...U1 PIN 2 UNIT SWITCHED ON U1 PIN 2 OFF UNIT SWITCHED OFF U1 PIN 3 UNIT SWITCHED ON U1 PIN 3 UNIT SWITCHEDOFF U1 PIN 4 6 GND...

Page 48: ...U1 PIN 5 UNIT SWITCHED ON U1 PIN 5 UNIT SWITCHED OFF U1 PIN 7 8 GND U1 PIN 9 UNIT SWITCHED ON U1 PIN 9 UNIT SWITCHED OFF...

Page 49: ...U1 PIN 10 UNIT SWITCHED ON U1 PIN 10 UNIT SWITCHED OFF U1 PIN 11 UNIT SWITCHED ON U1 PIN 11 UNIT SWITCHED OFF U1 PIN 12 UNIT SWITCHED ON U1 PIN 12 UNIT SWITCHED OFF...

Page 50: ...U1 PIN 13 FLOATING U1 PIN 14 UNIT SWITCHED ON U1 PIN 14 UNIT SWITCHED OFF U2 PIN 1STROKING FACEPLATE U2 PINS 2 4 GND...

Page 51: ...U2 PIN 3 STROKING FACEPLATE U2 PIN 5 STROKING FACEPLATE U2 PIN 6 SUPPLY U2 PIN 7 U2 PIN 8 STROKING FACEPLATE...

Page 52: ...STROKING FACEPLATE PIN 1 GND J4 PIN 1 SUPPLY TO TRANSDUCER J4 PIN 4 STROKING FACEPLATE SIGNAL FROM TRANSDUCER THE FOLLOWING IMAGES ARE SIGNALS TAKEN FROM THE POCKET DOPPLER FETAL TRANSDUCER 2MHZ Q1 CO...

Page 53: ...Q1 EMITTER VRF TRANSMITTER CIRCUIT Q2 SOURCE TRANSMITTER CIRCUIT Q2 DRAIN Q2 GATE GND TRANSMITTER CIRCUIT Q3 COLLECTOR TRANSMITTER CIRCUIT Q3 BASE TRANSMITTER CIRCUIT L2 PIN 1...

Page 54: ...TRANSMITTER CIRCUIT L2 PIN 3 TRANSMITTER CIRCUIT TRANITTED SIGNAL L2 PIN 4 RECEIVER CIRCUIT Q5 GATE RECEIVER CIRCUIT Q5 DRAIN RECEIVER CIRCUIT Q4 GATE RECEIVER CIRCUIT Q4 DRAIN...

Page 55: ...RECEIVER CIRCUIT Q6 DRAIN RECEIVER CIRCUIT Q6 GATE RECEIVER CIRCUIT Q6 SOURCE TRANSDUCER RECEIVER CIRCUIT U1 PIN 1 TRANSDUCER RECEIVER CIRCUIT U1 PIN 2 TRANSDUCER RECEIVER CIRCUIT U1 PIN 3...

Page 56: ...TRANSDUCER RECEIVER CIRCUIT U1 PIN 5 TRANSDUCER RECEIVER CIRCUIT U1 PIN 6 TRANSDUCER RECIEVER CIRCUIT U1 PIN 7 TRANSDUCER RECEIVER OUTPUT TO AUDIO BOARD J1 PIN 4...

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Page 75: ...Ultrasound Technologies Ltd Lodge Way Portskewett Caldicot NP26 5PS United Kingdom Tel 01291 425425 Fax 01291 427093 Email ultratec doppler co uk Web www doppler co uk...

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