Maquet Datascope CS300 User manual

SERVICE MANUAL

0070-10-0689 CS300™Service Manual
CS300™is a U.S. trademark of Datascope Corp.
Datascope®is a U.S. registered trademark of Datascope Corp.
Mini Dopplex® is a U.S. registered trademark of Huntleigh Healthcare, Inc.
Copyright ©Datascope Corp., 2015. Printed in U.S.A. All rights reserved. Contents of this publication may not be
reproduced in any form without permission of Datascope Corp.

CS300™Service Manual 0070-10-0689 i
Table of Contents
Foreword.......................................................................................................................................................v
Warnings, Precautions and Notes.....................................................................................................................v
Warning........................................................................................................................................................v
Precautions ....................................................................................................................................................v
Notes ............................................................................................................................................................vi
Theory of Operation ......................................................................................................... 1 - 1
System Block Diagrams.................................................................................................................................... 1 - 2
Circuit Descriptions ......................................................................................................................................... 1 - 6
Power Supply for CS300.......................................................................................................................... 1 - 6
Sensor Module........................................................................................................................................ 1 - 6
Repair Information ........................................................................................................... 2 - 1
Introduction.................................................................................................................................................... 2 - 1
Safety Precautions........................................................................................................................................... 2 - 1
Troubleshooting Guidelines .............................................................................................................................. 2 - 1
Test Equipment and Special Tools Required........................................................................................................ 2 - 3
Troubleshooting Code Numbers........................................................................................................................ 2 - 4
Configuration DIP Switch (S2) Set-up on the Main Board ..................................................................................... 2 - 7
System Configuration ...................................................................................................................................... 2 - 8
Service Diagnostics ......................................................................................................................................... 2 - 8
Introduction............................................................................................................................................. 2 - 8
User Interface.......................................................................................................................................... 2 - 9
Main Menu............................................................................................................................................. 2 - 10
Pneumatic System Test ..................................................................................................................... 2 - 11
Display Test .................................................................................................................................... 2 - 14
Keypad / Switch Test ...................................................................................................................... 2 - 15
External RS-232 Port Test .................................................................................................................. 2 - 16
Modem Test .................................................................................................................................... 2 - 17
Recorder Test .................................................................................................................................. 2 - 18
Functional Tests ............................................................................................................................... 2 - 18
Diagnostic Support .......................................................................................................................... 2 - 25
Pneumatic Instructions...................................................................................................................................... 2 - 32
Removal ................................................................................................................................................. 2 - 32
Disassembly............................................................................................................................................ 2 - 33
Re-Assembly............................................................................................................................................ 2 - 34
Helium Regulator Yoke Extension Removal ......................................................................................................... 2 - 35
Pre-Removal Helium Leak Check ................................................................................................................ 2 - 35
Rear Panel Cover Removal........................................................................................................................ 2 - 35
Yoke Removal ......................................................................................................................................... 2 - 35
Replacement Parts ............................................................................................................ 3 - 1
Introduction.................................................................................................................................................... 3 - 1
Available Replacement Parts and Sub-Assemblies ............................................................................................... 3 - 1
Product Variations and Options................................................................................................................. 3 - 1
Exchange Program .................................................................................................................................. 3 - 1
Replacement Parts Pricing Information ........................................................................................................ 3 - 2
Ordering Information ............................................................................................................................... 3 - 2
Abbreviations.......................................................................................................................................... 3 - 3
Isometric Drawing and Parts Lists ...................................................................................................................... 3 - 10
Chassis .................................................................................................................................................. 3 - 10
Chassis International Parts List ................................................................................................................... 3 - 17
Monitor Module ...................................................................................................................................... 3 - 20
Monitor Module International Parts List ....................................................................................................... 3 - 22
Compressor Assembly .............................................................................................................................. 3 - 24

Table of Contents
ii 0070-10-0689 CS300™Service Manual
Cart Assembly......................................................................................................................................... 3 - 26
Cart Assembly International Parts List ......................................................................................................... 3 - 27
Calibration Procedure ....................................................................................................... 4 - 1
Introduction.................................................................................................................................................... 4 - 1
Warnings And General Guidelines ................................................................................................................... 4 - 2
Test Equipment and Special Tools Required................................................................................................. 4 - 2
Calibration..................................................................................................................................................... 4 - 4
Preliminary Steps ..................................................................................................................................... 4 - 4
Initial Set-up for Calibration ...................................................................................................................... 4 - 4
Power-Up Test Routine .............................................................................................................................. 4 - 4
Service Diagnostics.................................................................................................................................. 4 - 5
User Interface ................................................................................................................................. 4 - 5
Power Supply Checks............................................................................................................................... 4 - 6
Record Time............................................................................................................................................ 4 - 7
Reference Voltage Check.......................................................................................................................... 4 - 7
Internal Transducer Check ........................................................................................................................ 4 - 7
Balloon (Shuttle) Transducer Calibration ..................................................................................................... 4 - 8
Atmospheric Transducer Calibration .......................................................................................................... 4 - 9
Drive Transducer Calibration..................................................................................................................... 4 - 9
Safety Disk Leak Test................................................................................................................................ 4 - 10
K6, K6A, K7, K8 Leak Test ....................................................................................................................... 4 - 11
Pressure Regulator and Vacuum Check....................................................................................................... 4 - 12
Autofill Calibration .................................................................................................................................. 4 - 12
Solenoid Driver Board Checks................................................................................................................... 4 - 14
Fiber Optic Test Instructions ...................................................................................................................... 4 - 15
ECG Gain Calibration ............................................................................................................................. 4 - 16
Blood Pressure Gain Calibration................................................................................................................ 4 - 17
Functional Tests .............................................................................................................................................. 4 - 18
Keypad / Switch Test............................................................................................................................... 4 - 18
External RS-232 Port Test .......................................................................................................................... 4 - 18
Modem Test............................................................................................................................................ 4 - 20
Recorder Test .......................................................................................................................................... 4 - 21
Motor Calibration/Test............................................................................................................................. 4 - 21
Helium Tank Calibration........................................................................................................................... 4 - 22
Pneumatic Performance Tests..................................................................................................................... 4 - 22
Blood Pressure Channel Checks................................................................................................................. 4 - 23
ECG Channel Checks .............................................................................................................................. 4 - 24
Preference and Printer Menu Checks.......................................................................................................... 4 - 25
Pumping Checks...................................................................................................................................... 4 - 25
Portable Operation Check ........................................................................................................................ 4 - 26
Manual Fill Valve..................................................................................................................................... 4 - 26
Timer Check............................................................................................................................................ 4 - 26
Helium Checks ........................................................................................................................................ 4 - 26
Fan Check .............................................................................................................................................. 4 - 27
Leakage Current Test - Safety Checks ................................................................................................................ 4 - 28
Source Current, Chassis Case to Ground Leakage ....................................................................................... 4 - 28
Lead to Ground....................................................................................................................................... 4 - 29
Ground Resistance................................................................................................................................... 4 - 29
Calibration Test Point Locations ................................................................................................................. 4 - 30
Preventive Maintenance.................................................................................................... 5 - 1
Introduction.................................................................................................................................................... 5 - 1
Required Parts ................................................................................................................................................ 5 - 2

CS300™Service Manual 0070-10-0689 iii
Table of Contents
System Log Book............................................................................................................................................. 5 - 3
Preventive Maintenance Schedules.................................................................................................................... 5 - 4
Visual Inspection Checklists .............................................................................................................................. 5 - 6
Weekly or Before Each Use ...................................................................................................................... 5 - 6
Every 6 Months or 2500 Hours of Use ....................................................................................................... 5 - 6
Access and Replacement Instructions ................................................................................................................. 5 - 8
Pump Maintenance Instructions.................................................................................................................. 5 - 8
Pump Muffler Replacement........................................................................................................................ 5 - 11
Pneumatic Filter Replacement Instructions .................................................................................................... 5 - 11
Shock Mounts and Hoses ......................................................................................................................... 5 - 12
Battery Replacement ................................................................................................................................ 5 - 12
Purge Line Filter Replacement .................................................................................................................... 5 - 14
Power Supply.......................................................................................................................................... 5 - 15
Clean Fiber Optic Assembly ..................................................................................................................... 5 - 15
Fiber Optic Lamp Replacement.................................................................................................................. 5 - 17

Table of Contents
iv 0070-10-0689 CS300™Service Manual
This page intentionally left blank.

CS300™Service Manual 0070-10-0689 v
Foreword Introduction
Foreword
This manual is intended to provide information required to properly service the Datascope
CS300 Intra-Aortic Balloon Pump.
Warnings, Precautions and Notes
Please read and adhere to the following list of warnings, precautions and notes; some of
which are repeated in the appropriate areas throughout this manual.
A WARNING is provided if there is reasonable evidence of an association of a serious
hazard with the misuse of this device or when special attention is required for the safety of
the patient.
A PRECAUTION is provided when any special care is to be exercised by the practitioner to
avoid causing damage to this device or other property. They may also include actions to be
taken to avoid effects on patients or users that may not be potentially life threatening or result
in serious injury, but about which the user should be aware.
A NOTE is provided when extra general information is applicable. Notes appear in the
appropriate areas throughout the manual.
Warning
WARNING: Compressed gasses (helium cylinders) are considered
Dangerous Goods/Hazardous Materials per I.A.T.A. and
D.O.T. Regulations.
It is a violation of federal and international law to offer any
package or over pack of dangerous goods for
transportation without the package being appropriately
identified, packed, marked, classified, labeled and
documented according to D.O.T. and I.A.T.A. regulations.
Please refer to the applicable I.A.T.A. Dangerous Goods
Regulations and / or the Code of Federal Regulations 49
(Transportation, Parts 171-180) for further information.
WARNING: Preventive Maintenance should not be performed when the
IABP is attached to a patient.
Precautions
CAUTION: Do not short component leads together.
CAUTION: The troubleshooting charts are not intended as a rapid
course on how to repair devices of this type. Rather, they
are intended as a guide for qualified technical personnel
only. The instrument covers should only be removed by
technically qualified personnel who have received
supplementary instructions regarding maintenance of
medical electronic equipment or have had equivalent
experience in this area.

Introduction Notes
vi 0070-10-0689 CS300™Service Manual
CAUTION: The accidental shorting of component leads can easily over
stress components, resulting in a second unnecessary failure
(aside from creating a possible safety risk).
CAUTION: To avoid damage, do not use the high powered iron to
repair printed wiring boards as the conductors will lift from
the surface under the extreme heat.
Notes
NOTE: Datascope maintains a policy of continual product
improvement and reserves the right to change materials
and specifications without notice.

CS300™Service Manual 0070-10-0689 1 - 1
1.0 Theory of Operation
The Theory of Operation is divided into two parts. The first part contains block diagrams for
the entire system, including cabling, and pneumatics. It should be used by service personnel
to become familiar with the internal organization of the instrument. The second part contains
PCB drawings, the related block diagrams, and a brief circuit description.

System Block Diagrams Theory of Operation
1 - 2 0070-10-0689 CS300™Service Manual
1.1 System Block Diagrams
The Block Diagrams indicate the internal organization of the instrument. They are used to
gain familiarity with the instrument and to locate malfunctioning PC boards as readily as
possible. To avoid clutter, the number of PC board interconnects is minimized. The
interconnects shown represent major or essential signal flow and clock connections.
Block Diagrams Page
System Block Diagram 1-3
Cable Block Diagram 1-4
Pneumatic Block Diagram 1-5

CS300™Service Manual 0070-10-0689 1 - 3 Theory of Operation System Block Diagrams
FIGURE 1-1 System Block Diagram
Safety
Disk
RA LA
LL
Patient
Balloon
Press ure
Transducer
ECG
Cat heter
Extender
Patient Inputs
Recorder
AR-42
Main Board
ECG
Pressure
9
Te l e - c o m
Output
RS- 23 2
External
Monitor
Inputs
ECG
Pressure
Trainer
Auto Fill tubing
Drain
tubing
FAN
Peltier cooler
&heatsink
Pel ti er & f an
LVDS0,1,2,C (2 ea)
RxMAIN(2)
TxMAIN(2)
BULK-RT N(2)
BUF-RxMAI N
TxMAIN
HD 0-15
To Motor control Bd.
S
S
Motor A
Motor B
Motor C
HALL A
HALL B
HALL C
HALL+
HALL-
From Power Supply
DC Brushless Motor
BULK 20-32VDC
Shared
RAM
68H C1 1
Communication
Processor
6809 Microprocessor
IABP Sub-system
68020 Microprocessor
Display Sub-system
0670-00-1152 or
0670-00-0788
ECG-EXT-SEL*
ECG-EXT- IN
BP-E XT-SEL*
BP-E XT-IN
SOLND- STATE
BAL LO ON- EXC +, -
DRIVE-EXC +,-
DRI VE- XOU T + , -
BAL LOO N-XOUT +, -
0670-00-0668
1mV
5uV/V/1mmHg
1VOLT/mV
1VOLT/100mmHg
FE-TX
FE-RX
FE-CLK
TRIG- PULSE *
SOLND- STATE
BATT-VOLT
BATT-CURR
To Test
Connector
REMOTE-ON*
LED-ANODE, LED-CATH
Status-FAN-FAIL*,BATT-FLT*,BATT-LOW*,BATT-OP*
BATT-GND, BATT-CUR, BATT-VOLT
+12V Recorder, -12V, +5V Vcc, +24V Sol. Driver
Power Switch
ON /O F F
DGND
BD 0-7
+24V, + -12, +5
CHARGE LED +,- XXXX_SOL*
K1*, K2*, K4* Fill
K6 ,K7 ,K8 Drive
K3,K5 Purge
FULL*, EMPTY*, K6A
J1
J4 J5
J2J3
J6
JP5
JP19 JP18 JP16
JP22
JP21
JP17
JP1
JP3
JP20
ON/OFF
JP25
JP1 JP2
JP11
JP8
JP7
JP5
JP6
JP3
0670-00-0639
Solenoid Driver
Board
Pneumatics
(solenoids, switches
andpressure transducers)
Front End
Board
Display Board
0670-00-0640
MODEM
BOARD
JP2
JP1
JP3
JP30
System Timer (hours)
101.3
BULK
BULK-RET
SPKR( +)
DGND
JP1
JP3
0671-00-0004
Motor
Control
Board
JP1
JP2
0670-00-0647
RECORDER
INTERFACE
BOARD
J1 J2
20
MTR-ENABLE*, MOTOR-DRIVE
MOT OR-TAC H, D IG-TACH
+5V, 12V-RCD, 12VRET-RCD
AR42-TXD, AR42-RTS, AR42-RES*
AR42-RXD, AR42-CTS, AR42- SYNC
0670-00-0736
Video
Board
JP23
PUMP ASSEMBLY
COOLING FAN
CMPRS-FAN-FAIL*
24V
J7
JP2
BULK(2)
Receiver
0670-00-0786
Dat aset te
(FLASH)
IAB
DriveManifold
0104-00-0018
Fill Manifold
0104-00-0023
Dual-Head
Compressor
2
Heli um
pressure
regulator
Helium
Ta n k
To Sa l i n e B a g
J2
CS*,OE*
J1
0670-00-0787
Dat aset te
(FLASH)
DSS CS*,OE*
J1
Pressure
Vaccuum
06 70 -0 0-07 63
+5V
J2
J2
Keypad
Controller
0670-00-1145
LVDS0,1,2,C (2 ea)
+5V(2),+12V(2)
RTN (4), RATE0,
RATE1
Board-to-board
Connection
J4
Dual Res er voi r
Pressure
Transducer
PSI G
J8
ECG-EXT-OUT
BP-EXT-OUT
ECG/Press.
Outputs
RL
C
JP9
Battery
Charge
LED
Bl ood
Detect
Sensor
(p/o
Sol Drv)
Backlight
Inverter
J4
0671-00-0230
Speaker
JP31
CS100 Keypad
J5
Coiled cable
Test Connector
From Front End Board
1-ECG-VAR-TEST
2-BP-TEST
3-BALLOON-PRESS-TEST
4-DRIVE-PRESS-TEST
5-PCR-PLS-TEST
6-TRIG-PLS-TEST
7-SOLND-STAT-TEST
8-GND_A
9-GND_D
ECG
AUT O
AUTO
100
76
94
112
80
II
2
20
LCD Display 640 X 480
105
0160-00-0071-02 or
0160-00-0113*
ECG
PRESSURE
Pacer V/ AV
Pacer A
Internal
OPEN
MEN U
1:1
1:2
1:3
MAX
OFF
IAB INFLATION
Earlier Later
HELP
IAB DEFLATION
Late rEarlier
AUTO START STANDBY
TRIGGERS OURCE IAB FREQUENCY AUGMENTATION
SEMI
AUTO MANUAL ZERO
PRESSURE
ALARM
MUTE
IAB
FILL
REF
LINE
AUG
ALA RM
BACK
ECG/AP
SOURCES
PUMP
OPTIONS
USER
PREFERENCE S
INFLATION
INTERVAL
FREEZE
DISPLAY
PRINT
STRI P
OPERATION MODE
16
3Ring
4Tip
1,2,5,6 n/ c
RJ11 Connector
Power Supply Assembly
DC Fan
AC
Power E ntry
Module
AC IN
Fus ib le l ink
24V Battery
Input
filters
Control
Boar d
-Power factor
correction
-Battery charger
-Regulated supplies
Power Board
J100
J101
J102
J103
30A 10A
10A
0014-00-0033-05
FOS Assy
Fiber-Optic
Intfc Board
0997-00-1161
p/o J2
JP15
J3
J3 J1
J2
V-BULK, BULK-RTN
V- B U LK
BULK-RTN
V- BU L K
BULK-RT N
TxD, RxD
Rst, Sync
J1
TxD, RxD
FE-CLK
p/o J2
J5
S1
Bedside BP
Zero PB-SW
Lo-Lvl
Out
iso-zone
Fiber-Optic Sensor
p/o Sensor IAB
PurgeManifold
0104-00-0026
0161-00-0022
Battery As sy
0146-00-0047-XX ( non UTS)
0146-00-0051 ( UTS)
Fiber Optic Sensor
Assembly
MOTOR
COMPRESSOR
ASSEMBLY
0102-00-0001
ATM
Xducer
0331-00-0119
CS300 Block Diagram
00 12 -0 0-1 4 29 o r
00 12 -0 0-1 7 47*
* For use with NEC64E display.

System Block Diagrams Theory of Operation 1 - 4 0070-10-0689 CS300™Service Manual
FIGURE 1-2 Cable Block Diagram
Safety Disk /
C R M A sse m b l y
Pressure
Transducer
ECG
Pati ent I nputs
Recor der
AR-42
Main Board
ECG
Pressure
Tele- com
Output
RS-232
External
Monitor
Inputs
ECG
Pr e ssu r e
Tr ai ne r
FA N
Pel t i er c oo l e r
&heatsink
To M otor Contr ol ler Bd.
S
S
Motor A
MotorB
MotorC
HA LL A
HA LL B
HA LL C
HA LL +
HALL-
DC Br ushl ess M ot or
0670-00-1152
0670-00-0668
Power Swi tch
J1
J5J4
J2
J3
J1
JP5
JP19 JP18 JP16
JP 2 2
JP23
JP17
JP1
JP3
JP20
JP25
JP1 JP2
JP11JP8
JP7
JP3
JP5
JP6 0670-00-0639
Solenoid Dr i ver
Boar d
Front End
Board
DisplayBoard
0670-00-0640
MODEM
BOAR D
JP2
JP1
JP3
JP 3 0
0671-00-0004
Motor
Control
Boar d
JP1
JP3
0670-00-0647
RECORDER
INTERFACE
BOARD
J1 J2
0670-00-0736
JP 2 1
J7
JP2
Video
Boar d
Receiver
0670-00-0786
D a t a set t e
(FLA SH)
IAB
J2
J1
0670-00-0787
Datasette
(FL ASH)
DSS
J1
0670-00- 0763
J2
J2
Keypad
Controller
PCB
0670-00-1145
B oar d- t o- boar d
Connec ti o n
J4
J8
ECG/ Pres.
Outputs
JP 9
Bat ter y
Charge
LED
Backli gh t
Inverter
J4
0671-00-0230
Speaker
JP31
CS10 0 K ey p ad
0331-00-0119
J5
Coi l ed cabl e
EC G
AUTO
AUTO
100
76
94
112
80
II
2
20
LCD Display 640 X 480
105
016 0- 0 0- 0071 -0 2 o r
016 0- 0 0- 0113 *
ECG
PRESSURE
PacerV/AV
PacerA
Internal
OPEN
MENU
1:1
1:2
1:3
MAX
OFF
IABINFLATION
Ear li er L ater
HELP
IABDEFLATION
LaterEar li er
AUTO START STANDBY
TRI GGER SOURCE I AB FREQUENCY AUGMENTATI O N
SEM I
AUTO MAN UAL ZERO
PRESSURE
AL AR M
MUTE
IAB
FIL L
RE F
LINE
AUG
AL AR M
BACK
ECG /AP
SOURCE S
PUM P
OPTIONS
USER
PREFER EN C ES
INFLA TI ON
INTERVAL
FREEZ E
DISP L AY
PRIN T
ST RI P
OPERATION MODE
P ow e r S u pp l y A ssem b l y
DCFan
AC
Po w e r E nt r y
Module
AC IN
Fusible link
24V Battery
Input
fi l t er s
Control
Board
-Power factor
cor recti on
-Battery charger
-Re gulat ed suppl i es
Po w er B o ar d
J10 0
J10 1
J10 2
J1 0 3
30A 10A
10A
0014-00-0033-05
FOS Assy
Fiber-Optic
InterfaceBoard
p/o J2
JP15
J3
J3 J1
J2
J1
p/o J2
J5
S1
Fi ber- Opti c Sensor
p/o Sensor I AB
Battery Assy
0146- 00-0047-X X ( non UTS)
0146-00-0051 ( UTS)
099 7-0 0- 1161
Fiber Optic Sensor
Assembly
0012-00-0977
Fill M anif old
0104 -00- 0023
Pur ge M anif old
0104 -00- 0026
DriveManifold
0104-00-0018
Sa f e t y Ve n t
Sol e n oi d K 6 A
Se nsor s
-Empty
-Full
0012-00-0976
Helium
Tr an sduc er
Bal l oon
Transducer
Dr i ve
Transducer
0012-00-0834
0012-00- 1062
2/
001 2-0 0- 1104
6/
6/
6/
8/
001 2-0 0- 0767
4/
001 2-0 0- 1096- 01 0012 -0 0-1 097- 01
10 /26/
0012-00-1061
14 /
0012 -0 0- 1196- 01
20
/20/
20 /
0012-00-0784-02
0012-00-0761-02
0012-00-0874-02
2/
0012-00-0893-02
4/
001 2-0 0- 0759- 02
4/
Compressor
Fan
Thermal
Sw i t c h
0012-00-1056
From Power Suppl y
101.3
Sy st em T i mer
(hours)
4/
2/
0012- 00- 14 29 or
0012- 00- 17 47*
0012-00-1428
0012-00-1059
Chassi s
0012-00-1056
0012-00-1060
0012 -0 0-1 875- 02
0012-00-0766
001 2-0 0- 1537
part of 0012-00- 1539
0012 -0 0- 1538
0012-00- 1765
0012-00-1058
001 2-0 0- 0745
JP2
0012-00- 0888
0012-00- 1536
par t of
001 2-0 0- 1539
par t of
0012-00-1539
* For use w ith NEC 64E di spl ay .
0012-00-0746 0012-00
-0785
0012-00-1422
0012-00
-0964
(U T S)
0012-00-0886- 01 - 110V
0012-00-0886- 02 - 220V
0012- 00-0886- 03 - 2 20V ( Chi nese)
001 2-0 0- 1682

CS300™Service Manual 0070-10-0689 1 - 5 Theory of Operation System Block Diagrams
FIGURE 1-3 Pneumatic Block Diagram
Helium
Gauge 0
2K
4K
Helium
Cylinder
Volume Cylinder
K5
K1
K2
Fill Solenoid
Patient I.A.B.
Helium
Solenoid
RG1
C
C
21
2
Legend: Solenoids shown in normal position ( non-activated )
Solenoid (open )
Solenoid (closed)
Relief Valve Transducer
Regulator
C - common
1 -- normally open
2 -- normally closed
3Way
Solenoid
Pump
To Solenoid
Driver PCB
Purge
Solenoids
Empty
S2
Full
Blood Back
Sensor
2 Stage
regulator
FP1
Safety Disk
Brushless
DC Motor
Filter
Pressure
Head
Muffler
Vacuum
Head
K4
Isolation
Solenoid
Muffler
To Front End PCB
Muffler
CV2
4.5 P.S.I.
Relief
Valve
1
Hall Effect
Sensors
PRESSURE
RESERVOIR
X2
Drive
Transducer
X1
Balloon
FAN
Peltier cooler
& heatsink
Manual
Fill Port
FILL MANIFOLD
DRIVE MANIFOLD
To Motor
Control PCB
To Solenoid
Driver PCB
S1
CV1
K8
K7
Pressure
Solenoid
Vacuum
Solenoid
RG2
8 P.S.I.
Back Pressure
Regulator
9 P.S.I.
Relief Valve
K6
Vent
Solenoid
REF.
SIGNAL
TUBE
SIGNAL
LED
Transducer
VACUUM
RESERVOIR
Safety
Vent
Solenoid
K3
PURGEASSEMBLY
X4
Helium
Tank
Transducer
To Front End PCB
K6A
Muffler

Circuit Descriptions Theory of Operation
1 - 6 0070-10-0689 CS300™Service Manual
1.2 Circuit Descriptions
1.2.1 Power Supply for CS300
1.2.2 Sensor Module
P/N INPUTS OUTPUTS
0014-00-0033-05 AC Mains, Battery 18 - 32 volts (main or bulk supply)
24 V (solenoid supply) +/-12 volts, +5 volts,
Battery charger, charge LED drive
P/N DESCRIPTION
0992-00-0202 The Fiber Optic Sensor Assembly accepts an optical signal that
communicates blood pressure information from a sensor placed in
the intra-aortic balloon.

CS300™Service Manual 0070-10-0689 1 - 7
Theory of Operation Circuit Descriptions
Circuit Descriptions Page
Power Supply Assembly Block Diagram P/N 0014-00-0033-05 1-8
Front End Description 1-9
Front End PCB Drawing P/N 0670-00-0668 1-10
Front End PCB Block Diagram P/N 0670-00-0668 1-11
Main Board Description 1-12
Main PCB Drawing P/N 0670-00-1152 / 0670-00-0788 1-13
Main Board Block Diagram P/N 0670-00-1152 / 0670-00-0788 1-15
Display Controller Description 1-16
Display Controller PCB Drawing P/N 0670-00-0640 1-17
Display Controller Block Diagram P/N 0670-00-0640 1-18
Solenoid Driver Description 1-19
Solenoid Driver PCB Diagram P/N 0670-00-0639 1-20
Solenoid Driver PCB Block Diagram P/N 0670-00-0639 1-21
Keypad Controller Description 1-22
Keypad Controller PCB Diagram P/N 0670-00-1145 1-23
Keypad Controller Block Diagram P/N 0670-00-1145 1-24
Video Receiver Description 1-25
Video Receiver Board Diagram P/N 0670-00-0736 1-26
Video Receiver Block Diagram P/N 0670-00-0736 1-27
Sensor Module Description 1-28
Sensor Module Board Diagram P/N 0997-00-1161 1-29
Sensor Module Block Diagram P/N 0997-00-1161 1-30

Circuit Descriptions Theory of Operation 1 - 8 0070-10-0689 CS300™Service Manual
FIGURE 1-4 Power Supply Assembly Block Diagram
P/N 0014-00-0033-05
1
2
3
AC
ACN
GND
EMI
FILTER
DC
FAN
POWER
FACTOR
CORRECTION
CONVERTER
(PFC)
J1
1
2
3
BATT
BATT
BATT-RET
J3
4
BATT-RET
90-264
VAC
20-32 VDC
BATTERY
CHARGER
MULTIPLE
OUTPUT
FLYBACK
CONVERTER
1
2
3
4
BULK
BULK
BULK-RET
BULK-RET
1
2
3
4
BATT-VOLT
BATT-CURR
AGND
REMOTE-ON*
5
6
7
8
BATT-LOW*
BATT-HRT*
BATT-FLT*
BATT-OP*
P/O J100
J103
J101 J102
INPUT PCBA
POWER PCBA
STATUS CONNECTOR
POWER
CONNECTORS
CONTROL
PCBA
SELV
BARRIER
SELV
BARRIER
CHASSIS
GROUND
PFC
CONTROL
ISO
CONVERTER
CONTROL
CHARGER CONTROL
FAN DRIVE
STATUS LINES
FLYBACK
CONVERTER
CONTROL
INTERNAL BULK
MAINS
ON/OFF
MAINS
FUSES
BATTERY
FUSE
BULK
FUSE
EMI
FILTER
BULK
SWITCH
RECTIFIER
BRIDGE
HOUSEKEEPING
SUPPLY
CONTROL
LOGIC
1
2
3
4
+12V
12RET
-12V
5RET
5
6
7
8
+5RET
+24V
24RET
+5V
1
2
3
4
+12V
12RET
-12V
5RET
5
6
7
8
+5RET
+24V
24RET
+5V
9
10
11
12
FF_SD_DISABLE
REDUCED_AIR
13
14
15
LED-CATH
DGND
LED-ANODE
P/O J100
18-32 VDC
POWER ENTRY MODULE
MAINS
ISOLATION
CONVERTER
NOT USED
NOT USED

CS300™Service Manual 0070-10-0689 1 - 9
Theory of Operation Circuit Descriptions
Front End Description
ECG Pressure
• Patient isolation • Patient isolation
• ESU filters • Pressure scaling
• Lead selection • Auto zero circuit
• Reference lead drive • Pressure gain adjustment
• External ECG signal selection • External pressure signal selection
• Pacer detection • Pressure ESD protection
• ECG trigger signal conditioning
• ECG size
• ECG ESD protection
• ECG defibrillator protection
Data Acquisition Microcontroller
• Pneumatic transducer amplifiers • Serial interface to Main Board
• A/D converter for display signals • ECG circuit control latches
• 12-Bit A/D converter • Pressure circuit control latches
• Transducer excitation voltages • Controls A/D conversion
• Pacer blanking
• ESU detect and time-out
• Auto zero control

Circuit Descriptions Theory of Operation 1 - 10 0070-10-0689 CS300™Service Manual
FIGURE 1-5 Front End PCB Drawing
P/N 0670-00-0668

CS300™Service Manual 0070-10-0689 1 - 11 Theory of Operation Circuit Descriptions
FIGURE 1-6 Front End PCB Block Diagram
P/N 0670-00-0668
CSD
Circuitry
Amp
ESU Flt
Lead Sel
Lead Drv
Diff Amp
Mod De-Mod
De-Mod
Amp
&
Lead
Fault
Var Gain
DAC
Pacer Det
&
ESU Det
Mux A/D
Conv
68HC711
Micro-
controller
Gain Adj
&
Zero Ofst
He tank-Pres
ECG-Trig
BP-Trig
ECG-Disp
BP-Disp
Drive-Pres
Bal-Pres
Atmos-Pres
2.5V Ref
Batt-Volt
Batt-Cur
Tem p
A-Gnd
Pwr
Conv
Iso Pwr
Supply
Iso-Barrier
BP-Trig
BP-Disp
ECG-Trig
ECG-Disp
BP
ECG
To Comm Proc.
on Main Board
Ext BP In
Ext ECG In
Trigger
Processing
Pressure
ECG
Patient
Inputs
5uV/V/1mmHg
1mV
Mod
Display
Gain
Balloon-Exc(+)
Balloon-Exc(-)
Balloon-Xout(+)
Balloon-Xout(-)
Drive-Exc(+)
Drive-Exc(-)
Drive-Xout(+)
Drive-Xout(-)
J4
J5
Excit.
Voltage
Reg.
2.5VRef
+5V -5V
+5V Ref
Scaling
Amp
On board
transducer
Offset
Atmospheric Pressure Channel
Instrument-
ation Amp
Offset
Balloon Pressure Channel
Instrument-
ation Amp
Offset
Drive Pressure Channel
2.5V
Reg.
Independent
Reference
Buffer
Buffer
4mV / mmHg
4mV / mmHg
Balloon-Press
Test ( t o P 6 )
Drive-Press-
Te s t ( t o P 6 )
Tank- E x c
Tank- S i g
Ta n k - G n d
Buffer
+5V Ref.
Scaling
Amp
Helium Tank
Pressure Channel
Tem p
Sensor
Solnd-state
Trig-pulse*
Batt-volt
Batt-curr
FE-TX
FE-RX
FE-Clk
Scaling
Amp
Batt-
Curr
Batt-
Volt
Buffer
Buffer
Solnd-Stat-Test (To P6)
Trig-Pls-Test (To P6)
Buffers 68HC711
Micro-Controller
125mV/V
250mV/A
Temperature
Channel
12 MHz
Xtal
Divide-
by-48
Clk-62.5 KHz
3.00 MHz
ESU-Present*
Pacer-Blanking*
LD-Flt-Detect
Trainer*
Slew-rate-exceeded
HW-ESU-exceeded
Xducer*
60Hz / 50Hz*
ECG-Ext-Sel*
BP-Ext-Sel*
1 Volt / mV
1 Volt / 100mmHg
External Monitor Inputs
ECG-Ext-In
ECG-Ext-Sel*
BP-Ext-In
BP-Ext-Sel*
ECG-Ext-Out
BP-Ext-Out
Solnd-State
50/60 HZ
Notch
60 Hz / 50 Hz*
J3
Trainer
ECG
Pressure
6 - Trig-Pls-Test
7 - Solnd-Stat-Test
8 - Gnd_A
9 - Gnd_D
1 - ECG-Var-Test
2 - BP-Test
3 - Balloon-Press-Test
4 - Drive-Press-Test
5 - Pcr-Pls-Test
Diagnostic Output
P6

Circuit Descriptions Theory of Operation
1 - 12 0070-10-0689 CS300™Service Manual
Main Board Description
6809 Microprocessor (2 MHz) 68020 Microprocessor (33 MHz)
• 50 k EPROM (Datasette) • 2 M EPROM (Datasette)
• 12 k RAM • 2 M RAM
• Solenoid control signals • Real time clock and NVRAM
• Watchdog timer • Display interface
• Alarm processing • Recorder control
• Pneumatic switch status • Recorder interface
• IABP control status • RS-232 interface
• Motor speed D/A converter • Modem interface
• Configuration DIP switch
68HC711 Microprocessor
Serial interface to the Front End, Solenoid Driver and Keypad Controller boards
• Shared RAM interface
Shared RAM
• Port 1 interfaces with the 68020 sub-system
• Port 2 interfaces with the 6809 sub-system
• Port 3 interfaces with the 68HC711 (communications processor)