Midmark 625 Barrier-Free® Examination Table Parts Manual

Type
Parts Manual
FOR USE BY MIDMARK TRAINED TECHNICIANS ONLY
Model Numbers:
Service and
Parts Manual
Barrier-Free
Ā®
Power Exam Table
625
004-0763-00 Rev. AA8 (3/14/19)
iiĀ© Midmark Corporation 2009 SF-1935 [Revised: 9/20/13]
Table of ContentsTable of Contents
(*) Indicates multiple pages due to model / serial number break(s).
GENERAL INFORMATION
Symbols ...........................................................iii
Ordering Parts .................................................iii
Serial Number Location ...................................iii
Speciī‚æcations ................................................. iv
Model Identiī‚æcation /
Compliance Chart ......................................... vi
Scheduled Maintenance
Cleaning Chart .............................................. vii
TROUBLESHOOTING
Troubleshooting Chart ................................. A-2
Power to the Chair:
120 V models ......................................... A-10
230 V models ..........................................A-11
Base Up / Down ......................................... A-12
Back Up / Down ......................................... A-14
Home Function .......................................... A-16
Drawer Heater System .............................. A-18
Table Receptacle(s) ................................... A-19
Scale Information Flow .............................. A-20
TESTING
Foot / Hand Controls ................................... B-2
Wireless Controls ........................................ B-4
Base Function Components ........................ B-7
Back Function Components .......................B-11
Drawer Heater System .............................. B-15
Table Calibration Procedure ...................... B-20
Scale Calibration Procedure ...................... B-21
Scale Boards / LED Testing ....................... B-22
General InfoSection A
Section E
Section B
Section CSection DDigitally Linked Files
ACCESS PROCEDURES
Manually Raising / Lowering Table ................ C-6
Removal / Installation:
Cladding .................................................. C-2
Table Shrouds.......................................... C-3
Upholstery ............................................... C-7
Chair Arms / Brace .................................. C-8
Top Cover ................................................ C-9
WIRING DIAGRAMS
625-001 ......................................................D-2*
625-003 ......................................................D-3*
625-004 ....................................................... D-4
625-005 ....................................................... D-5
625-006 ....................................................... D-6
EXPLODED VIEWS / PARTS LIST
625 (-001 /-003 /-005 / -006) ........................... E-2
625 (-004) .......................................................... E-3
REPAIR PROCEDURES & FORMS
Base Actuator ................................003-2072-00
Back Actuator ................................003-2071-00
Main PC Board ..............................003-2073-00
Scale / USB PC Boards .................003-2454-00
LIN to VSM PC Board .................... 003-2455-00
Wireless Basestation PC Board ....003-2471-00
Color Selector ...................... www.midmark.com
iiiĀ© Midmark Corporation 2009 SF-1935 [Revised: 6/15/12]
Caution
Indicates a potentially hazardous situation which may
result in minor or moderate injury if not avoided. It may
also be used to alert against unsafe practices.
WARNING
Indicates a potentially hazardous situation which
could result in serious injury if not avoided.
General InformationGeneral Information
DANGER
Indicates an imminently hazardous situation which
will result in serious or fatal injury if not avoided.
This symbol is used only in the most extreme conditions.
Equipment Alert
Indicates a potentially hazardous situation which
could result in equipment damage if not avoided.
Symbols
The symbols below may be used in this manual to represent
the operational status of table functions and components.
Indicates the function / component is working properly.
No action required.
Indicates the function / component is working,
but a problem exists.
Indicates the function is not working at all, or that the
component is faulty.
Ordering Parts
The following information is required when ordering parts:
ī€ƒ ā€¢ī€ƒ Serialī€ƒnumberī€ƒ&ī€ƒmodelī€ƒnumber
ī€ƒ ā€¢ī€ƒ Partī€ƒnumberī€ƒforī€ƒdesiredī€ƒpart
(Refer to Section E: Exploded Views & Parts Lists)
Non-warranty part orders may be faxed to Midmark using
the Fax Order Form in the back of this manual.
For warranty part orders, call Midmarkā€™s Technical Service
Department with the required information.
Hours: 8:00 am to 5:00 p.m. EST (Monday thru Friday)
Phone:ī€ƒ1-800-Midmarkī€ƒ(1-800-643-6275)
Serial Number Location
Note
Used for special instructions or additional information.
Model / Serial Number Label
Located on the Back Mounting Frame
(exact location may vary)
ivĀ© Midmark Corporation 2009 SF-1935 [Revised:7/12/18 ]
WARNING
ī€ƒ Equipmentī€ƒnotī€ƒsuitableī€ƒforī€ƒuseī€ƒinī€ƒtheī€ƒpresenceī€ƒofī€ƒaī€ƒīƒ€ammableī€ƒanestheticī€ƒmixture.
Speciī‚æcationsī€ƒ625ī€ƒ(-001ī€ƒ/-003ī€ƒ/-005ī€ƒ/-006)
Range of Motion, Weights, Electrical Speciī‚æcations
Speciī‚æcationsī€ƒChart
Patient Weight (maximum): 650ī€ƒlbsī€ƒ(295ī€ƒkg)
Intended Weight Betweenī€ƒ30ī€ƒandī€ƒ650ī€ƒpoundsī€ƒ(13.6/295kg)
Weight of Table:
w/upholstery
w/packaging & skid
(noī€ƒuph.)
Uph. w/packaging (shippedī€ƒseparately)
470ī€ƒlbsī€ƒ(213ī€ƒkg)
487ī€ƒlbsī€ƒ(221ī€ƒkg)
45ī€ƒlbsī€ƒ(20ī€ƒkg)
Power Cord Length: 8ī€ƒft.ī€ƒ(244ī€ƒcm)
Electrical Requirements: (See Regulatory Compliance Chart)
Foot / Hand Control Voltage: 14ī€ƒVAC,ī€ƒSELVī€ƒ(Safetyī€ƒExtraī€ƒLowī€ƒVoltage)
Duplex Receptacle(s)
(maximum load) 115ī€ƒVAC,ī€ƒ5A,ī€ƒ50/60ī€ƒHz
Fuses:
IEC inlet fuses (2)
F1 & F2 (on main PC board):
F3 (on main PC board):
F4 (on main PC board)
Models w/ drawer heaters
distribution board fuses (2)
6.3A,ī€ƒ250V,ī€ƒType-T,ī€ƒ5ī€ƒxī€ƒ20ī€ƒmm
10A,ī€ƒ250V,ī€ƒType-T,ī€ƒ5ī€ƒxī€ƒ20ī€ƒmm
160mA,ī€ƒ250V,ī€ƒType-T,ī€ƒ5ī€ƒxī€ƒ20ī€ƒmm
6.3A,ī€ƒ250V,ī€ƒType-T,ī€ƒ5ī€ƒxī€ƒ20ī€ƒmm
800mA,ī€ƒ250V,ī€ƒType-T,ī€ƒ5ī€ƒxī€ƒ20mm
Duty Cycle
(Motor Run Time):
Receptacle(s) & Drawer Heater:
Intermittent Operation
[30 seconds ON / 5 minutes OFF]
Continuous Operation
Classiī‚æcations: Classī€ƒ1,ī€ƒTypeī€ƒBī€ƒAppliedī€ƒPart
Protection against ingress of īƒ€uids: IPXOī€ƒ[Foot Control only: IPX1]
MA8023i
Pelvicī€ƒTilt
Max. 7Ā° Ā±2Ā°
Min. 1.5Ā°
0Ā° (horizontal) to
+80Ā° Ā±5Ā°
Max.
37ī€ƒĀ±ī€ƒ0.5ī€ƒin.
(94ī€ƒĀ±ī€ƒ1.3ī€ƒcm)
Min.
18ī€ƒĀ±ī€ƒ0.5ī€ƒin.
(45.7ī€ƒĀ±ī€ƒ1.3ī€ƒcm)
Home Height
20ī€ƒĀ±ī€ƒ0.5ī€ƒin.
(50.8ī€ƒĀ±ī€ƒ1.3ī€ƒcm)
Quickī€ƒExamā„¢ Height
Programmable
(set by the user)
vĀ© Midmark Corporation 2009 SF-1935 [Revised: 7/12/18]
Speciī‚æcationsī€ƒ625ī€ƒ(-004)
Range of Motion, Weights, Electrical Speciī‚æcations
Speciī‚æcationsī€ƒChart
Patient Weight (maximum): 650ī€ƒlbsī€ƒ(295ī€ƒkg)
Intended Weight Betweenī€ƒ30ī€ƒandī€ƒ650ī€ƒpoundsī€ƒ(13.6/295kg)
Weight of Table:
w/upholstery
w/packaging & skid
(noī€ƒuph.)
Uph. w/packaging (shippedī€ƒseparately)
475ī€ƒlbsī€ƒ(216ī€ƒkg)
502ī€ƒlbsī€ƒ(228ī€ƒkg)
45ī€ƒlbsī€ƒ(20ī€ƒkg)
Power Cord Length: 8ī€ƒft.ī€ƒ(244ī€ƒcm)
Electrical Requirements: (See Regulatory Compliance Chart)
Foot / Hand Control Voltage: 14ī€ƒVAC,ī€ƒSELVī€ƒ(Safetyī€ƒExtraī€ƒLowī€ƒVoltage)
Simplex Receptacles
(maximum load) 115ī€ƒVAC,ī€ƒ5A,ī€ƒ50/60ī€ƒHz
Fuses:
IEC inlet fuses (2)
F1 & F2 (on main PC board):
F3 (on main PC board):
F4 (on main PC board)
Models w/ drawer heaters
distribution board fuses (2)
6.3A,ī€ƒ250V,ī€ƒType-T,ī€ƒ5ī€ƒxī€ƒ20ī€ƒmm
10A,ī€ƒ250V,ī€ƒType-T,ī€ƒ5ī€ƒxī€ƒ20ī€ƒmm
160mA,ī€ƒ250V,ī€ƒType-T,ī€ƒ5ī€ƒxī€ƒ20ī€ƒmm
6.3A,ī€ƒ250V,ī€ƒType-T,ī€ƒ5ī€ƒxī€ƒ20ī€ƒmm
800mA,ī€ƒ250V,ī€ƒType-T,ī€ƒ5ī€ƒxī€ƒ20mm
Duty Cycle
(Motor Run Time):
Receptacles & Drawer Heater:
Intermittent Operation
[30 seconds ON / 5 minutes OFF]
Continuous Operation
Classiī‚æcations: Classī€ƒ1,ī€ƒTypeī€ƒBī€ƒAppliedī€ƒPart
Protection against ingress of īƒ€uids: IPXOī€ƒ[Foot Control only: IPX1]
Pelvicī€ƒTilt
Max. 7Ā° Ā±2Ā°
Min. 1.5Ā°
0Ā° (horizontal) to
+80Ā° Ā±5Ā°
Max.
37.5ī€ƒĀ±ī€ƒ0.5ī€ƒin.
(95.3ī€ƒĀ±ī€ƒ1.3ī€ƒcm)
Min.
18.5ī€ƒĀ±ī€ƒ0.5ī€ƒin.
(47ī€ƒĀ±ī€ƒ1.3ī€ƒcm)
Home Height
20.5ī€ƒĀ±ī€ƒ0.5ī€ƒin.
(52.1ī€ƒĀ±ī€ƒ1.3ī€ƒcm)
Quickī€ƒExamā„¢ Height
Programmable
(set by the user)
WARNING
ī€ƒ Equipmentī€ƒnotī€ƒsuitableī€ƒforī€ƒuseī€ƒinī€ƒtheī€ƒpresenceī€ƒofī€ƒaī€ƒīƒ€ammableī€ƒanestheticī€ƒmixture.
viĀ© Midmark Corporation 2009 SF-1935
Model Description
Complies To: Electrical Ratings:
UL
60601-1
CAN / CSA
22.2,
#601.1-M90
EN
60601-1
EN
60601-1-2
(EMC)
NFPA
99
VAC
+/- 10%
Amps
Cycles
(Hz)
625-001 Two-functionī€ƒtableī€ƒ
(Base / Back),ī€ƒw/ī€ƒreceptacle(s),ī€ƒ
pelvicī€ƒtilt,ī€ƒ&ī€ƒdrawerī€ƒheater
ā€¢ ā€¢ ā€¢ ā€¢
115 12 50/60
625-003 Two-functionī€ƒtableī€ƒ
(Base / Back),ī€ƒw/ī€ƒreceptacle(s),ī€ƒ
pelvicī€ƒtilt,ī€ƒdrawerī€ƒheater,ī€ƒ&ī€ƒwire-
less controls
ā€¢ ā€¢ ā€¢ ā€¢
115 12 50/60
625-004 Two-functionī€ƒtableī€ƒ
(Base / Back),ī€ƒw/ī€ƒreceptacles,ī€ƒ
pelvicī€ƒtilt,ī€ƒdrawerī€ƒheater,
wirelessī€ƒcontrols,ī€ƒIQscaleā„¢,
and IQhubā„¢
ā€¢ ā€¢ ā€¢ ā€¢
115 12 50/60
625-005 Two-functionī€ƒtableī€ƒ
(Base / Back),ī€ƒw/ī€ƒpelvicī€ƒtilt
ā€¢ ā€¢
230 4 50/60
625-006 Two-functionī€ƒtableī€ƒ
(Base / Back),ī€ƒw/ī€ƒpelvicī€ƒtilt,ī€ƒ&ī€ƒ
drawer heater
ā€¢ ā€¢
230 4.5 50/60
[Revised: 6/15/12]
Modelī€ƒIdentiī‚æcationī€ƒ/ī€ƒComplianceī€ƒChart
Fire Code Ratings:
All upholstery complies with California Bureau of Home Furnishing Technicalī€ƒBulletinī€ƒ117 and
Californiaī€ƒCodeī€ƒofī€ƒRegulations,ī€ƒSect.ī€ƒ93120-93120.12,ī€ƒTitleī€ƒ17.Optionalī€ƒupholsteryī€ƒisī€ƒavailableī€ƒ
that complies with California Bureau of Home Furnishing Technicalī€ƒBulletinī€ƒ133.
viiĀ© Midmark Corporation 2009 SF-1935 [Revised: 2/12/18]
Scheduled Maintenance / Cleaning Chart
Interval Inspection / Service Description
Weekly
Cleaning
Cleanī€ƒupholsteryī€ƒwithī€ƒappropriateī€ƒdilutedī€ƒbleachī€ƒsolutionī€ƒ10:1ī€ƒ(water:ī€ƒbleach)
Wipeī€ƒpaintedī€ƒmetalī€ƒ&ī€ƒplasticī€ƒsurfacesī€ƒwithī€ƒaī€ƒcleanī€ƒsoftī€ƒclothī€ƒandī€ƒmildī€ƒcleaner.
Obviousī€ƒDamage Visuallyī€ƒinspectī€ƒcomponentsī€ƒforī€ƒdamageī€ƒthatī€ƒcouldī€ƒresultī€ƒinī€ƒunsafeī€ƒoperation.
Semi-Annually
Mechanical Operation
Check all mechanical functions using the foot control. Repeat using the hand control.
Tableī€ƒshroudsī€ƒshouldī€ƒmoveī€ƒsmoothlyī€ƒ&ī€ƒquietlyī€ƒwhenī€ƒbaseī€ƒisī€ƒraisedī€ƒ&ī€ƒlowered.
(NOTE: There are plastic glides on the shroud tabs, Missing glides may result in noisy operation.)
Labelsī€ƒ/ī€ƒDecals Replace any missing or illegible labels.
Lubrication
Lubricate back hinge with light machine oil.
Lubricateī€ƒfootrestī€ƒslideī€ƒwithī€ƒhouseholdī€ƒfurnitureī€ƒwax.
Hardware All fasteners must be present and fastened securely.
Electrical System
Inspect power cord and all wiring for damage.
Be sure all electrical connections are tight.
Stirrups Checkī€ƒthatī€ƒstirrupsī€ƒextendī€ƒeasily,ī€ƒandī€ƒlockī€ƒsecurelyī€ƒintoī€ƒeachī€ƒlateralī€ƒposition.
Scale Verifyī€ƒtheī€ƒscaleī€ƒisī€ƒmeasuringī€ƒaccuratelyī€ƒusingī€ƒaī€ƒreferenceī€ƒweightī€ƒofī€ƒknownī€ƒvalue.
Dateī€ƒofī€ƒService:ī€ƒ
Location:
Serviceī€ƒTechnician:
Model Number:
Serial Number:
Notes:
A-1Ā© Midmark Corporation 2009 SF-1935 [Revised: 9/20/13]
Section ASection A
Troubleshooting
Troubleshooting Chart .......................A-2
Power to the Chair
120 V models................................A-10
230 V models................................A-11
Base Up / Down...............................A-12
Back Up / Down ............................... A-14
Home Function ................................A-16
Drawer Heater System ....................A-18
Table Receptacle(s) .........................A-19
Troubleshooting Chart .......................A-2
Power to the Chair
120 V models................................A-10
230 V models................................A-11
Base Up / Down...............................A-12
Back Up / Down ............................... A-14
Home Function ................................A-16
Drawer Heater System ....................A-18
Table Receptacle(s) .........................A-19
A-2Ā© Midmark Corporation 2009 SF-1935 [Revised: mo/dd/yr]
Quickī€ƒReferenceī€ƒforī€ƒ625ī€ƒScaleī€ƒTableī€ƒ(alsoī€ƒreferī€ƒtoī€ƒ625ī€ƒTroubleshootingī€ƒChartī€ƒsection):
Ifī€ƒbelowī€ƒinformationī€ƒdoesī€ƒnotī€ƒresolveī€ƒtheī€ƒissue,ī€ƒthenī€ƒcontactī€ƒtechnicalī€ƒserviceī€ƒatī€ƒ1-800-MIDMARKī€ƒ(643-6275).
Run the base of the
table all the way to the
bottom by pressing and
holding the base down
button until the table
stops and the press the
weight button again
Scale does not work.
Press ā€œweightā€ button
again being careful not
to hit any other buttons
Verify remote is the
one that was shipped
with table
Replace batteries,
verifying correct polarity.
Is table
ā€œseatā€ higher
thanī€ƒ22ā€?
No Readings
No
Does the display
turnī€ƒonī€ƒ(dashedī€ƒlines,ī€ƒ
etc.) when a scale
button is pressed
(weightī€ƒorī€ƒzero)?
Does display
comeī€ƒon?
Check battery compartment
for broken battery terminals
Will remote
cause table to
moveī€ƒusingī€ƒbaseī€ƒ
orī€ƒbackī€ƒbuttons?
Verify all four leveling
feet are securely on the
īƒ€oor, no rocking
Verify the patient (if
any) is not moving
around on the table.
No
Replace hand control,
reassociate.
Is remote a
replacement?
Associate hand control,
with table.
No
Yes
Table Lo Yes
Yes
Yes
Yes
A-3Ā© Midmark Corporation 2009 SF-1935 [Revised: 6/23/11]
Troubleshooting Chart
Problem Symptom Probable Cause Check Correction
No functions will operate.
All functions inoperable. Facilityī€ƒsupplyī€ƒvoltage Powerī€ƒcordī€ƒconnectionsī€ƒ&
facility circuit breaker.
Secure power cord connections.
Reset circuit breaker if necessary.
Mainī€ƒPCī€ƒboardī€ƒfuse(s)ī€ƒblown Testī€ƒF1,ī€ƒF2,ī€ƒF3,ī€ƒ&ī€ƒF4ī€ƒfuses
Refer to:
Section D - Wiring Diagrams
Loose wire connections Wire connections between
powerī€ƒinletī€ƒandī€ƒmainī€ƒPCī€ƒ
board.
Secure loose wire connections.
Wireless controls (if applicable)
Refer to: Section B - Wireless
Controls
Performī€ƒwirelessī€ƒcontrolsī€ƒtest.
Overtravelī€ƒlimitī€ƒswitch
(Later models only)
Performī€ƒlimitī€ƒswitchī€ƒtest
Section B - Limit Switch Test
Replace faulty limit switch.
Base function not operating
properly.
No Base Up or Base Down. Loose wire connections Wire connections
(esp.ī€ƒFoot/Handī€ƒcontrol(s)ī€ƒand
baseī€ƒup/downī€ƒlimitī€ƒswitches).
Secure loose wire connections.
Mainī€ƒPCī€ƒboardī€ƒfuse(s)ī€ƒblown Testī€ƒF1,ī€ƒF2,ī€ƒF3,ī€ƒ&ī€ƒF4ī€ƒfuses
Refer to:
Section D - Wiring Diagrams
Footī€ƒ/ī€ƒHandī€ƒcontrolī€ƒ(refer to:
Wireless Controls if applicable)
Performī€ƒFootī€ƒ/ī€ƒHandī€ƒcontrolī€ƒ
test.
Refer to:
Section B - Foot / Hand Controls
Baseī€ƒactuatorī€ƒ/ī€ƒPCī€ƒboard Performī€ƒPCī€ƒboardī€ƒtests.
Refer to: Section B -
PC Board Test
Table stops and beeps Patientī€ƒweightī€ƒexceededī€ƒ650ī€ƒlbs Ifī€ƒpatientī€ƒweightī€ƒexceededī€ƒtheī€ƒ
650ī€ƒlb.ī€ƒweightī€ƒlimit.
Informī€ƒstaļ‚‡ī€ƒthatī€ƒmax.ī€ƒpatientī€ƒ
weightī€ƒisī€ƒ650ī€ƒlbs.
Noī€ƒBaseī€ƒUpī€ƒ/ī€ƒBaseī€ƒDownī€ƒOK Loose wire connections Wire connections
(esp.ī€ƒFoot/Handī€ƒcontrol(s)ī€ƒand
base up limit switch).
Secure loose wire connections.
Footī€ƒ/ī€ƒHandī€ƒControlī€ƒ(refer to:
Wireless Controls if applicable)
Performī€ƒFootī€ƒ/ī€ƒHandī€ƒcontrolī€ƒ
test.
Refer to:
Section B - Foot / Hand Controls
Base Up limit switch
Performī€ƒlimitī€ƒswitchī€ƒtest
Section B - Limit Switch Test
Replace faulty limit switch.
Baseī€ƒactuatorī€ƒ/ī€ƒPCī€ƒboard Performī€ƒPCī€ƒboardī€ƒtest.
Refer to: Section B -
PC Board Test
Noī€ƒBaseī€ƒDownī€ƒ/ī€ƒBaseī€ƒUpī€ƒOK Loose wire connections Wire connections
(esp.ī€ƒFoot/Handī€ƒcontrol(s)ī€ƒand
base down limit switch).
Secure loose wire connections.
Footī€ƒ/ī€ƒHandī€ƒControlī€ƒ(refer to:
Wireless Controls if applicable)
Performī€ƒFootī€ƒ/ī€ƒHandī€ƒcontrolī€ƒ
test.
Refer to:
Section B - Foot / Hand Controls
Base Down limit switch
Performī€ƒlimitī€ƒswitchī€ƒtest
Section B - Limit Switch Test
Replace faulty limit switch.
Baseī€ƒactuatorī€ƒ/ī€ƒPCī€ƒboard Performī€ƒPCī€ƒboardī€ƒtest.
Refer to: Section B -
PC Board Test
A-4Ā© Midmark Corporation 2009 SF-1935 [Revised: mo/dd/yr]
Troubleshooting Chart
Problem Symptom Probable Cause Check Correction
Base function not operating
properly.ī€ƒ-ī€ƒcontinued
Baseī€ƒUpī€ƒ/ī€ƒDownī€ƒnoisy,ī€ƒgrindingī€ƒorī€ƒ
squeaking.
Actuator threads dry Actuator threads. Clean and lubricate base actuator
threads with Lithium grease.
Debris on Base Slides For any debris on base slides. Removeī€ƒanyī€ƒdebrisī€ƒfromī€ƒbaseī€ƒ
slides.
Note: Do not lubricate base slides.
Base Actuator Runī€ƒtableī€ƒupī€ƒandī€ƒdown,ī€ƒifī€ƒ
squeakingī€ƒorī€ƒgrindingī€ƒcontinueī€ƒ
check base actuator.
Replace base actuator.
Tableī€ƒUpī€ƒ/ī€ƒDownī€ƒ-ī€ƒTableī€ƒdriftsī€ƒ
down.
Footī€ƒ/ī€ƒHandī€ƒControlī€ƒ(refer to:
Wireless Controls if applicable)
Runī€ƒtableī€ƒup,ī€ƒthenī€ƒunplugī€ƒ
powerī€ƒcord.ī€ƒIfī€ƒdriftingī€ƒstops,
performī€ƒFootī€ƒ/ī€ƒHandī€ƒcontrolī€ƒ
test.
Refer to:
Section B - Foot / Hand control
Base Actuator Runī€ƒtableī€ƒup,ī€ƒthenī€ƒunplugī€ƒ
power cord. If drifting
continues,ī€ƒcheckī€ƒbase
actuator.
Replace base actuator.
Back function not operating
properly.
No Back Up or Back Down. Loose wire connections Wire connections
(esp.ī€ƒFoot/Handī€ƒcontrol(s)ī€ƒand
backī€ƒup/downī€ƒlimitī€ƒswitches.)
Secure loose wire connections.
Mainī€ƒPCī€ƒboardī€ƒfuse(s)ī€ƒblown Testī€ƒF1,ī€ƒF2,ī€ƒF3,ī€ƒ&ī€ƒF4ī€ƒfuses
Section D - Wiring Diagrams
Footī€ƒ/ī€ƒHandī€ƒcontrolī€ƒ(refer to:
Wireless Controls if applicable)
Performī€ƒFootī€ƒ/ī€ƒHandī€ƒcontrolī€ƒ
test.
Refer to:
Section B - Foot / Hand Controls
Backī€ƒactuatorī€ƒ/ī€ƒPCī€ƒboard Performī€ƒPCī€ƒboardī€ƒtest.
Refer to: Section B -
PC Board Test
Table stops and beeps. Patientī€ƒweightī€ƒexceededī€ƒ650ī€ƒlbs Ifī€ƒpatientī€ƒweightī€ƒexceededī€ƒtheī€ƒ
650ī€ƒlb.ī€ƒweightī€ƒlimit.
Informī€ƒstaļ‚‡ī€ƒthatī€ƒmax.ī€ƒpatientī€ƒ
weightī€ƒisī€ƒ650ī€ƒlbs.
Noī€ƒBackī€ƒUpī€ƒ/ī€ƒBackī€ƒDownī€ƒOK. Loose wire connections Wire connections
(esp.ī€ƒFoot/Handī€ƒcontrol(s)ī€ƒand
back up limit switch.)
Secure loose wire connections.
Footī€ƒ/ī€ƒHandī€ƒControlī€ƒ(refer to:
Wireless Controls if applicable)
Performī€ƒFootī€ƒ/ī€ƒHandī€ƒcontrolī€ƒ
test.
Refer to:
Section B - Foot / Hand Controls
Back Up Limit Switch
Performī€ƒlimitī€ƒswitchī€ƒtest.
Section B - Limit Switch Test
Replace faulty limit switch.
Backī€ƒactuatorī€ƒ/ī€ƒPCī€ƒboard Performī€ƒPCī€ƒboardī€ƒtest.
Refer to: Section B -
PC Board Test
A-5Ā© Midmark Corporation 2009 SF-1935 [Revised: 4/17/13]
Troubleshooting Chart
Problem Symptom Probable Cause Check Correction
Back function not operating
properly.ī€ƒ-ī€ƒcontinued
Noī€ƒBackī€ƒDownī€ƒ/ī€ƒBackī€ƒUpī€ƒOK. Loose wire connections Wire connections
(esp.ī€ƒFoot/Handī€ƒcontrol(s)ī€ƒand
back down limit switch).
Secure loose wire connections.
Footī€ƒ/ī€ƒHandī€ƒControlī€ƒ(referī€ƒto:ī€ƒ
Wireless Controls if applicable)
Performī€ƒFootī€ƒ/ī€ƒHandī€ƒcontrolī€ƒ
test.
Refer to:
Section B - Foot / Hand Controls
Back Down limit switch
Performī€ƒlimitī€ƒswitchī€ƒtest
Section B - Limit Switch Test.
Replace faulty limit switch.
Backī€ƒactuatorī€ƒ/ī€ƒPCī€ƒboard Performī€ƒPCī€ƒboardī€ƒtest.
Refer to: Section B -
PC Board Test
Backī€ƒUpī€ƒ/ī€ƒDownī€ƒ-ī€ƒBackī€ƒdriftsī€ƒ
down.
Footī€ƒ/ī€ƒHandī€ƒControlī€ƒ(refer to:
Wireless Controls if applicable)
Runī€ƒbackī€ƒup,ī€ƒthenī€ƒunplugī€ƒ
powerī€ƒcord.ī€ƒIfī€ƒdriftingī€ƒstops,
performī€ƒFootī€ƒ/ī€ƒHandī€ƒcontrolī€ƒ
test.
Refer to:
Section B - Foot / Hand Controls
Back Actuator Runī€ƒbackī€ƒup,ī€ƒthenī€ƒunplugī€ƒ
power cord. If drifting
continues,ī€ƒcheckī€ƒback
actuator.
Replace back actuator
Home not functioning
properly.
Noī€ƒHomeī€ƒ/ī€ƒBaseī€ƒDownī€ƒOK. Loose wire connections. Wire connections
(esp.ī€ƒFoot/Handī€ƒcontrol(s)ī€ƒand
Home limit switches).
Secure loose wire connections.
Footī€ƒ/ī€ƒHandī€ƒControlī€ƒ(refer to:
Wireless Controls if applicable)
Performī€ƒFootī€ƒ/ī€ƒHandī€ƒcontrolī€ƒ
test.
Refer to:
Section B - Foot / Hand Controls
Home Limit Switch(es)
Performī€ƒLimitī€ƒSwitchī€ƒtest.ī€ƒ
Refer to:
Section B - Limit Switch Test
Replace faulty Limit Switch.
Quick Exam
Ā®
not functioning
properly.
Quickī€ƒExam
Ā®
function
inoperable.
Quickī€ƒExam
Ā®
function not
programed.
Ifī€ƒQuickī€ƒExam
Ā®
function was
properly programed.
Refer to: Quickī€ƒExam
Ā®
Operation in User Guide.
Loose wire connections. Wire connections
(esp.ī€ƒFoot/Handī€ƒcontrol(s)ī€ƒand
Travelī€ƒlimitī€ƒswitches).
Secure loose wire connections.
Footī€ƒ/ī€ƒHandī€ƒControlī€ƒ(refer to:
Wireless Controls if applicable)
Performī€ƒFootī€ƒ/ī€ƒHandī€ƒcontrolī€ƒ
test.
Refer to:
Section B - Foot / Hand Controls
Travelī€ƒLimitī€ƒSwitch(es)
Performī€ƒLimitī€ƒSwitchī€ƒtest.ī€ƒ
Refer to:
Section B - Limit Switch Test
Replace faulty Limit Switch.
A-6Ā© Midmark Corporation 2009 SF-1935 [Revised: 4/17/13]
Problem Symptom Probable Cause Check Correction
Tableī€ƒReceptacle(s)
malfunctioning.
No power at table receptacle(s)
All other functions work.
Circuit breaker If circuit breaker is tripped. Lift seat section to access circuit
breaker(s),ī€ƒpressī€ƒtoī€ƒreset.
Loose wire connection Check wire connections
between table receptacle
and power cord.
Secure loose wire connections.
Blown isolation transformer
fuse(s) at IEC inlet
Test fuses at IEC inlet.
Refer to:
Section D - Wiring Diagrams
Isolation Transformer Outputī€ƒvoltageī€ƒatī€ƒisolationī€ƒtrans-
former.
Replace faulty isolation
transformer.
Table Receptacle Voltageī€ƒatī€ƒreceptacle. Replace faulty receptacle.
Wireless Controls
malfunctioning.
When any control button is
pressed,ī€ƒthatī€ƒcontrollerī€ƒsoundsī€ƒ
a single ā€œbeepā€. (All functions
operate)
Low battery Refer to: Section B - Wireless
Controls
Replace batteries. (size: AA)
Faultyī€ƒPCī€ƒboardī€ƒinī€ƒcontroller
Refer to: Section B - Wireless
Controls
Replaceī€ƒcontrollerī€ƒPCī€ƒboard.
When any control button is
pressed,ī€ƒnothingī€ƒhappens.
(Noī€ƒā€œbeepsā€,ī€ƒnoī€ƒmovement,ī€ƒect.)
Controller not associated to table.
Refer to: Section B - Wireless
Controls
Performī€ƒAssociationī€ƒProcedure.
Wireless controls component
malfunction.
Refer to: Section B - Wireless
Controls
Replace malfunctioning
component.
Drawer Heater
malfunctioning.
Drawer Heater does not warm up
Heater Switch does not illuminate.
Loose wire connections. Check wire connections
between heater switch and
power cord.
Secure loose wire connections.
Blown fuse(s) on distribution
board.
Test fuses on distribution board.
Refer to:
Section D - Wiring Diagrams
Drawer heater switch.
Test drawer heater switch.
Refer to: Section B - Drawer
Heater Switch Test
Replace drawer heater switch.
Drawer Heater does not warm up
Heaterī€ƒSwitch-OKī€ƒ(illuminates).
Loose wire connections. Check wire connections
between heater switch and
heater plate.
Secure loose wire connections.
Drawerī€ƒHeaterī€ƒPlate.
Test drawer heater plate.
Refer to: Section B - Drawer
Heater Plate Test
Replace drawer heater plate.
Drawer Heater-OK
Heater Switch does not illuminate.
Drawer Heater Switch. Refer to: Section B - Drawer
Heater Switch replacement.
Replace drawer heater switch.
Troubleshooting Chart
A-7Ā© Midmark Corporation 2009 SF-1935 [Revised: mo/dd/yr]
Troubleshootingī€ƒChartī€ƒ(625-004)
Problem Symptom Probable Cause Check Correction
Digital Scale is
malfunctioning.
Nothing is displayed on the digital
display.ī€ƒTableī€ƒfunctionsī€ƒOK.
Ten second scale time out feature
activated.
Pressī€ƒZeroī€ƒbuttonī€ƒtoī€ƒreactivateī€ƒ
display.
Inform operator of the ten second
time out feature.
Faultyī€ƒPCī€ƒboardī€ƒinī€ƒcontroller Replaceī€ƒPCī€ƒBoardī€ƒwithī€ƒknown
workingī€ƒPCī€ƒBoard.
Replaceī€ƒcontrollerī€ƒPCī€ƒboard.
The measured weight of patient is
inaccurate or the display scrolls.
Scaleī€ƒisī€ƒnotī€ƒzeroed. Check if operator failed to
zeroī€ƒscaleī€ƒbeforeī€ƒseating
patient.
Refer to: Scale Operation
in Users Guide.
The patientā€™s feet are making
contactī€ƒwithī€ƒtheī€ƒīƒ€oorī€ƒafterī€ƒweight
button has been pressed..
Check that the patient is
properly seated.
Refer to: Scale Operation
in Users Guide.
Check if stop button was
depressed while table was
automatically raising.
Refer to: Scale Operation
in Users Guide.
Obstruction under or around table
base.
Check for any obstruction
under or around table.
Removeī€ƒobstruction.
Tableī€ƒnotī€ƒlevel. Usingī€ƒbubbleī€ƒlevelī€ƒsuppliedī€ƒ
withī€ƒtable,ī€ƒcheckī€ƒeachī€ƒcorner
ofī€ƒtableī€ƒbaseī€ƒforī€ƒlevel.
Refer to: Leveling Instructions
in Installation Guide.
Display on hand control scrolls
without displaying weight.
Hand control not associated with
table. (No table functions).
Performī€ƒassociation
procedure.
Refer to: Wireless Controls.
Wireī€ƒconnectionī€ƒtoī€ƒexternal
antenna loose or broken.
Check wire connections to
Externalī€ƒAntenna.
Refer to: Wireless Controls.
Digitalī€ƒDisplayī€ƒworks,ī€ƒbut
measuredī€ƒweightī€ƒstaysī€ƒatī€ƒzero.
Scale calibration lost. Verifyī€ƒscaleī€ƒisī€ƒmeasuring
accurately using a reference
weightī€ƒofī€ƒknownī€ƒvalue.
Refer to: Scale Calibration
Procedure.
Loose wire connection. Check wire connections
from each load cell and scale
control board.
Secure loose wire connection.
Check wire connections
betweenī€ƒScaleī€ƒPCī€ƒBoard
andī€ƒLINī€ƒtoī€ƒScaleī€ƒPCī€ƒBoard.
Secure loose wire connection.
Check wire connections
betweenī€ƒ625ī€ƒtoī€ƒUSBī€ƒboard
and LIN to Scale board.
Secure loose wire connection.
Defectiveī€ƒScaleī€ƒPCī€ƒBoard. Replaceī€ƒScaleī€ƒPCī€ƒBoardī€ƒwith
knownī€ƒworkingī€ƒScaleī€ƒPC
Board.
Refer to: Scale / USB PC Boards
Replacement Instructions.
Defectiveī€ƒLINī€ƒtoī€ƒScaleī€ƒPCī€ƒBoard. Replaceī€ƒLINī€ƒtoī€ƒScaleī€ƒPC
Board with known working LIN
toī€ƒScaleī€ƒPCī€ƒBoard.
Refer to: Scale / USB PC Boards
Replacement Instructions.
A-8Ā© Midmark Corporation 2009 SF-1935 [Revised: mo/dd/yr]
Troubleshootingī€ƒChartī€ƒ(625-004)
Problem Symptom Probable Cause Check Correction
No function with hand or
foot control
When depressing wired or wire-
lessī€ƒhandī€ƒorī€ƒfootī€ƒcontrol,ī€ƒnoī€ƒbaseī€ƒ
orī€ƒbackī€ƒup/downī€ƒfunctionī€ƒ(greenī€ƒ
lightī€ƒD12ī€ƒonī€ƒPCī€ƒBoardī€ƒnot illumi-
nated).
Supplyī€ƒvoltage.ī€ƒ Facility circuit breaker. Reset circuit breaker..
Powerī€ƒcordī€ƒinletī€ƒ(IEC) Powerī€ƒcord. Ensure inserted securely into inlet.
Exportī€ƒOnly:ī€ƒIECī€ƒinletī€ƒtrans-
formerī€ƒfusesī€ƒ(6.3A,ī€ƒ250ī€ƒVī€ƒ
Slo-Blo)
Replace fuses.
Mainī€ƒPCī€ƒBoardī€ƒprimaryī€ƒfusesī€ƒ(F1ī€ƒ
andī€ƒF2)
Continuityī€ƒofī€ƒfusesī€ƒ(10ī€ƒA,ī€ƒ250ī€ƒ
Vī€ƒSlo-Blo)
Replace blown fuse
Mainī€ƒPCī€ƒboardī€ƒtransformerī€ƒfuseī€ƒ
(F3)
Continuityī€ƒonī€ƒfuseī€ƒ(160ī€ƒmA,ī€ƒ
250Vī€ƒSlo-Blo)
Replace blown fuse.
Loose wire connections Wire connections between
powerī€ƒintletī€ƒandī€ƒPCī€ƒboard.
Checkī€ƒforī€ƒcorrectī€ƒlieī€ƒvoltageī€ƒatī€ƒ
board
Wireī€ƒconnectionsī€ƒonī€ƒmainī€ƒPCī€ƒ
Board
Secure loose wire connection to
back/baseī€ƒfunctions.ī€ƒEnsureī€ƒhar-
ness wires are staggered properly
toī€ƒpreventī€ƒanyī€ƒpossibleī€ƒharnessī€ƒ
disconnection from board or from
actuator.
Overtravelī€ƒlimitī€ƒswitchī€ƒ(onlyī€ƒonī€ƒ
models with serial numbers from
V96852ī€ƒtoī€ƒpresent)
Performī€ƒlimitī€ƒswitchī€ƒtestī€ƒ
(untripped = less than 5 ohm;
tripped = OL)
Replace faulty limit switch.
A-9Ā© Midmark Corporation 2009 SF-1935 [Revised: mo/dd/yr]
Troubleshootingī€ƒChartī€ƒ(625-004)
Problem Symptom Probable Cause Check Correction
No function with hand
or foot control
When depressing wired hand or
footī€ƒcontrol,ī€ƒnoī€ƒbaseī€ƒorī€ƒbackī€ƒup/
downī€ƒfunctionī€ƒ(greenī€ƒlightī€ƒD12ī€ƒonī€ƒ
PCī€ƒBoardī€ƒilluminated).
Hand control Coil cord plugged properly into
receptacle on table
Properlyī€ƒplugī€ƒcoilī€ƒcordī€ƒintoī€ƒreceptacle
Break in coil cord Check for breaks. Replace coil cord as
needed.
Inlet malfunctioning Plugī€ƒhandī€ƒcontrolī€ƒintoī€ƒsecondī€ƒportī€ƒtoī€ƒcheckī€ƒ
forī€ƒfunctionality.ī€ƒReplaceī€ƒdefectiveī€ƒport.
Cordī€ƒrunningī€ƒfromī€ƒinletī€ƒtoī€ƒPCī€ƒBoardī€ƒ
disconnected or broken.
Check cord for proper installation. Replace
suspect cord with known working cord or
perform continuity check on cord.
Refer to:
Section B - Foot / Hand Controls
Mainī€ƒPCī€ƒBoardī€ƒisī€ƒmalfunctioning
Refer to: Section B -PC Board Test
Mainī€ƒPCī€ƒBoardī€ƒbaseī€ƒandī€ƒ
backī€ƒmotorī€ƒfuseī€ƒ(F4)
Continuityī€ƒonī€ƒfuseī€ƒ(6.3A,ī€ƒ250ī€ƒVī€ƒ
Slo-Blo)
Ifī€ƒboardī€ƒisī€ƒVersionī€ƒ1.5.Xī€ƒorī€ƒbelow,ī€ƒthenī€ƒre-
placeī€ƒmainī€ƒPCī€ƒBoard.
Ifī€ƒboardī€ƒisī€ƒVersionī€ƒ1.6.Xī€ƒorī€ƒabove,ī€ƒthenī€ƒ
replace fuse.
Replaceī€ƒallī€ƒ625ī€ƒboardsī€ƒifī€ƒfuseī€ƒblownī€ƒwithī€ƒse-
rialī€ƒnumberī€ƒbeforeī€ƒV1309272.ī€ƒReplaceī€ƒfuseī€ƒ
onlyī€ƒwithī€ƒserialī€ƒnumberī€ƒafterī€ƒV1365847.
Wireī€ƒconnectionsī€ƒonī€ƒmainī€ƒPCī€ƒBoard Secureī€ƒlooseī€ƒwireī€ƒconnectionī€ƒtoī€ƒback/
base functions. Ensure harness wires are
staggeredī€ƒproperlyī€ƒtoī€ƒpreventī€ƒanyī€ƒpossibleī€ƒ
harness disconnection from board or from
actuator.
No function with hand
or foot control. Unit
gives audible PC
Board tones when un-
plugged and plugged
back in.
When depressing wireless hand
orī€ƒfootī€ƒcontrol,ī€ƒnoī€ƒbaseī€ƒorī€ƒbackī€ƒ
up/downī€ƒfunctionī€ƒ(greenī€ƒlightī€ƒD12ī€ƒ
onī€ƒPCī€ƒBoardī€ƒilluminated).
Wirelessī€ƒhandī€ƒand/orī€ƒfootī€ƒ
control
Batteries (controller will sound a
single beep if batteries are low).
Replaceī€ƒbatteriesī€ƒ(sizeī€ƒAA).
Association of controller to table
Performī€ƒAssociation Procedure. If associa-
tionī€ƒdoesī€ƒnotī€ƒwork,ī€ƒthenī€ƒreferī€ƒto:
Wireless Controls - Isolating a Malfunction
Mainī€ƒPCī€ƒBoardī€ƒbaseī€ƒandī€ƒ
backī€ƒmotorī€ƒfuseī€ƒ(F4)
Continuityī€ƒonī€ƒfuseī€ƒ(6.3A,ī€ƒ250ī€ƒVī€ƒ
Slo-Blo)
Ifī€ƒboardī€ƒisī€ƒVersionī€ƒ1.5.Xī€ƒorī€ƒbelow,ī€ƒthenī€ƒre-
placeī€ƒmainī€ƒPCī€ƒBoard.
Ifī€ƒboardī€ƒisī€ƒVersionī€ƒ1.6.Xī€ƒorī€ƒabove,ī€ƒthenī€ƒ
replace fuse.
Wireī€ƒconnectionsī€ƒonī€ƒmainī€ƒPCī€ƒBoard Secure loose wire connection(s).
Receptacle
Powerī€ƒcordī€ƒinletī€ƒ(IEC) Continuity of isolation transformer
fusesī€ƒ(6.3A,ī€ƒ250ī€ƒVī€ƒSlo-Blo).
Replace fuses.
A-10Ā© Midmark Corporation 2009 SF-1935 Always verify model & serial number
Models:
Serial Numbers:
[Revised: 2/23/17]
MA8117i
Overtravel
Limit Switch
Main PC
Board
IEC
Inlet
Grn/Yel
Blk
Blk
Back Dn
Back Up
Base Dn
Base Up
Blk
Wht
Blk
Wht
Wht
Wht
COM
NC
COM
NC
COM
NC
COM
NC
Home
COM
NC
COM
NC
Limit Switches
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Brn
Blue
Blk
Blk
J4
J5
J1
J2J3
J6
J7
J9
J10
J13
J12
J14
J15
J11
F1
F2
F3
F4
Line Filter
COM
NC
Power to the Table (120ī€ƒVī€ƒmodels)
Thisī€ƒillustrationī€ƒshowsī€ƒonlyī€ƒtheī€ƒcomponentsī€ƒthatī€ƒaļ‚‡ectī€ƒALLī€ƒTABLEī€ƒFUNCTIONS.
Aī€ƒdetailedī€ƒdescriptionī€ƒofī€ƒcurrentī€ƒīƒ€owī€ƒalsoī€ƒappearsī€ƒbelow.
No functions will operate ...................A-3No functions will operate ...................A-3
625ī€ƒ(-001ī€ƒ&ī€ƒ-003)
all
Power Indicator Light
If light is OFF, there is no power to PC board.
If light is ON, proper voltage is present at PC board.
Facility Supply Voltage
Withī€ƒtheī€ƒchairā€™sī€ƒpowerī€ƒcordī€ƒproperlyī€ƒconnected,ī€ƒfacilityī€ƒsupplyī€ƒvoltageī€ƒ
(115ī€ƒVAC)ī€ƒisī€ƒsuppliedī€ƒthruī€ƒtheī€ƒcordī€ƒtoī€ƒtheī€ƒmainī€ƒPCī€ƒboard.
Overtravel Limit Switch (Laterī€ƒmodelsī€ƒonly)
Disruptsī€ƒpowerī€ƒtoī€ƒmainī€ƒPCī€ƒboardī€ƒifī€ƒtableī€ƒisī€ƒoverī€ƒextended.
Main PC Board
Whenī€ƒproperī€ƒvoltageī€ƒisī€ƒsuppliedī€ƒtoī€ƒtheī€ƒPCī€ƒboard,ī€ƒtheī€ƒpowerī€ƒindicatorī€ƒ
light (on PC board)ī€ƒisī€ƒilluminated.ī€ƒCircuitryī€ƒonī€ƒtheī€ƒPCī€ƒboardī€ƒprovidesī€ƒ
theī€ƒrequiredī€ƒvoltageī€ƒtoī€ƒpowerī€ƒallī€ƒofī€ƒtheī€ƒtableā€™sī€ƒcomponents:ī€ƒhand / foot
controls, actuators, limit switches.
Fuses
Theī€ƒfusesī€ƒonī€ƒtheī€ƒPCī€ƒboardī€ƒprovideī€ƒtheī€ƒfollowingī€ƒprotection:
ī€ƒ F1:ī€ƒProtects PC board (supply voltage).
ī€ƒ F2:ī€ƒProtects PC board (supply voltage).
ī€ƒ F3:ī€ƒProtects PC board transformer.
ī€ƒ F4:ī€ƒProtects Base and Back motors.
Note
The two external fuses at the power cord (IEC) inlet do not affect
Base or Back functions. These fuses affect the table receptacle only.
Limit Switch Harness
[Base / Back functions will not operate if
harness connection is loose.]
A-11Ā© Midmark Corporation 2009 SF-1935 Always verify model & serial number
Models:
Serial Numbers:
[Revised: 2/23/17]
Power to the Table (230ī€ƒVī€ƒmodels)
Thisī€ƒillustrationī€ƒshowsī€ƒonlyī€ƒtheī€ƒcomponentsī€ƒthatī€ƒaļ‚‡ectī€ƒALLī€ƒTABLEī€ƒFUNCTIONS.
Aī€ƒdetailedī€ƒdescriptionī€ƒofī€ƒcurrentī€ƒīƒ€owī€ƒalsoī€ƒappearsī€ƒbelow.
625ī€ƒ(-005ī€ƒ&ī€ƒ-006)
all
Facility Supply Voltage
Withī€ƒtheī€ƒchairā€™sī€ƒpowerī€ƒcordī€ƒproperlyī€ƒconnected,ī€ƒfacilityī€ƒ
supplyī€ƒvoltageī€ƒ(230 VAC) is supplied thru the two power
cordī€ƒinletī€ƒfusesī€ƒtoī€ƒtheī€ƒexportī€ƒtransformer.
Export Transformer
Theī€ƒexportī€ƒtransformerī€ƒreducesī€ƒtheī€ƒlineī€ƒvoltageī€ƒandī€ƒ
suppliesī€ƒ120Vī€ƒtoī€ƒtheī€ƒmainī€ƒPCī€ƒboard.
Overtravel Limit Switch (Laterī€ƒmodelsī€ƒonly)
Disruptsī€ƒpowerī€ƒtoī€ƒmainī€ƒPCī€ƒboardī€ƒifī€ƒtableī€ƒisī€ƒoverī€ƒextended.ī€ƒ
Main PC Board
Whenī€ƒproperī€ƒvoltageī€ƒisī€ƒsuppliedī€ƒtoī€ƒtheī€ƒPCī€ƒboard,ī€ƒ
the power indicator light (on PC board) is illuminated. Cir-
cuitryī€ƒonī€ƒtheī€ƒPCī€ƒboardī€ƒprovidesī€ƒtheī€ƒrequiredī€ƒvoltageī€ƒ
to power all of the tableā€™s components: actuators,
hand / foot controls, limit switches, etc.
Fuses
Theī€ƒfusesī€ƒonī€ƒtheī€ƒPCī€ƒboardī€ƒprovideī€ƒtheī€ƒfollowingī€ƒprotection:
ī€ƒ F1:ī€ƒProtects PC board (supply voltage).
ī€ƒ F2:ī€ƒProtects PC board (supply voltage).
ī€ƒ F3:ī€ƒProtects PC board transformer.
ī€ƒ F4:ī€ƒProtects Base and Back motors.
MA8119i
Main PC
Board
Blk
Blk
Back Dn
Back Up
Base Dn
Base Up
Blk
Wht
Blk
Wht
Wht
Wht
COM
NC
COM
NC
COM
NC
COM
NC
Home
COM
NC
COM
NC
Limit Switches
Limit Switch
Limit Switch
Limit Switch
Limit Switch
Brn
Blue
Blk
Blk
J4
J5
J1
J2J3
J6
J7
J9
J10
J13
J12
J14
J15
J11
F1
F2
F3
F4
Fuse
Holder
IEC
Inlet
Fuse
Holder
Brn
Blue
Brn
Blue
Grn/Yel
Main PCB
Export
Transformer
A
Overtravel
Limit Switch
COM
NC
Limit Switch Harness
[Base / Back functions will not operate if
harness connection is loose.]
Power Indicator Light
If light is OFF, there is no power to PC board.
If light is ON, proper voltage is present at PC board.
No functions will operate ...................A-3No functions will operate ...................A-3
A-12Ā© Midmark Corporation 2009 SF-1935 Always verify model & serial number
Models:
Serial Numbers:
[Revised: mo/dd/yr]
Base UP / DOWN Function
This illustration shows onlyī€ƒtheī€ƒcomponentsī€ƒthatī€ƒaļ‚‡ectī€ƒtheī€ƒBaseī€ƒUPī€ƒ/ī€ƒDOWNī€ƒfunction.ī€ƒ.
Referī€ƒtoī€ƒtheī€ƒfollowingī€ƒpageī€ƒforī€ƒaī€ƒdetailedī€ƒdescriptionī€ƒofī€ƒcurrentī€ƒīƒ€owī€ƒduringī€ƒthisī€ƒfunction.
No Base Up or Base Down................A-3
Table Stops and Beeps .....................A-3
No Base Up. Base Down - OK ..........A-3
No Base Down. Base Up - OK ..........A-3
Noisy Operation ................................. A-4
Base Up / Down -Table Drifts ............A-4
No Base Up or Base Down................A-3
Table Stops and Beeps .....................A-3
No Base Up. Base Down - OK ..........A-3
No Base Down. Base Up - OK ..........A-3
Noisy Operation ................................. A-4
Base Up / Down -Table Drifts ............A-4
Note:ī€ƒ230ī€ƒVACī€ƒmodelsī€ƒonly
Line voltage (230 VAC) is supplied thru two fuses (located by
the IEC inlet) to a transformer that reduces the line voltage to
115 VAC before it reaches the PC Board.
Base Down Limit Switch
[Base Down will not operate if switch is tripped]
115ī€ƒVAC
Base Up Limit Switch
[Base Up will not operate if switch is tripped]
625
all
14ī€ƒVAC
A-13Ā© Midmark Corporation 2009 SF-1935 Always verify model & serial number
Models:
Serial Numbers:
[Revised: mo/dd/yr]
625
all
Base UP / DOWN Function
Power to Foot / Hand Control
115ī€ƒVACī€ƒisī€ƒsuppliedī€ƒthruī€ƒtheī€ƒtwoī€ƒprimaryī€ƒfuses
(F1 & F2)ī€ƒtoī€ƒtheī€ƒtransformerī€ƒonī€ƒtheī€ƒPCī€ƒboard.
[F3 fuse protects the transformer].
Theī€ƒtransformerī€ƒreducesī€ƒtheī€ƒlineī€ƒvoltageī€ƒand
suppliesī€ƒ14ī€ƒVACī€ƒtoī€ƒtheī€ƒfootī€ƒ/ī€ƒhandī€ƒcontrol.
Base Up Operation
Whenī€ƒtheī€ƒBaseī€ƒUpī€ƒfunctionī€ƒisī€ƒactivated,
current (14 VAC)ī€ƒīƒ€owsī€ƒthruī€ƒtheī€ƒUPī€ƒfunction
foot switch (N.O.),ī€ƒthenī€ƒbackī€ƒtoī€ƒtheī€ƒPCī€ƒboard.ī€ƒ
Circuitryī€ƒonī€ƒtheī€ƒPCī€ƒBoardī€ƒenergizesī€ƒtheī€ƒbaseī€ƒ
motor. [F4 fuse protects the base motor].
Whenī€ƒtheī€ƒbaseī€ƒfunctionī€ƒisī€ƒenergized,ī€ƒcurrentī€ƒ
īƒ€owsī€ƒtoī€ƒtheī€ƒactuatorī€ƒmotor.ī€ƒWhenī€ƒcurrent
īƒ€owsī€ƒtoī€ƒtheī€ƒactuator,ī€ƒtheī€ƒactuatorī€ƒmotor
runs and raises the table.
Actuator motor runs until:
1.ī€ƒ Footī€ƒ/ī€ƒHandī€ƒcontrolī€ƒbuttonī€ƒisī€ƒreleased.
2.ī€ƒ Baseī€ƒUpī€ƒlimitī€ƒswitchī€ƒisī€ƒtripped.
3.ī€ƒ Fuse(s)ī€ƒopensī€ƒ(blows).
[Primary, Base Motor, Transformer fuse]
4.ī€ƒ Overī€ƒcurrentī€ƒconditionī€ƒisī€ƒdetected.
Base Down Operation
Whenī€ƒtheī€ƒBaseī€ƒDownī€ƒfunctionī€ƒisī€ƒactivated,
current (14 VAC)ī€ƒīƒ€owsī€ƒthruī€ƒtheī€ƒDOWNī€ƒfunctionī€ƒ
foot switch (N.O.),ī€ƒthenī€ƒbackī€ƒtoī€ƒtheī€ƒPCī€ƒboard.ī€ƒ
Circuitryī€ƒonī€ƒtheī€ƒPCī€ƒBoardī€ƒenergizesī€ƒtheī€ƒbaseī€ƒ
motor. [F4 fuse protects the base motor].
Whenī€ƒtheī€ƒbaseī€ƒfunctionī€ƒisī€ƒenergized,ī€ƒcurrentī€ƒ
īƒ€owsī€ƒtoī€ƒtheī€ƒactuatorī€ƒmotor.ī€ƒWhenī€ƒcurrent
īƒ€owsī€ƒtoī€ƒtheī€ƒactuator,ī€ƒtheī€ƒactuatorī€ƒmotor
runs and lowers the table.
Actuator motor runs until:
1.ī€ƒ Footī€ƒ/ī€ƒhandī€ƒcontrolī€ƒbuttonī€ƒisī€ƒreleased.
2.ī€ƒ Baseī€ƒDownī€ƒlimitī€ƒswitchī€ƒisī€ƒtripped.
3.ī€ƒ Fuse(s)ī€ƒopensī€ƒ(blows).
[Primary, Base Motor, Transformer fuse]
4.ī€ƒ Overī€ƒcurrentī€ƒconditionī€ƒisī€ƒdetected.
Note
If the Base Up limit switch is tripped (open),
the Base Up function will not operate.
Note
If the Base Down limit switch is tripped (open),
the Base Down function will not operate.
Equipment Alert
If an over current condition* is detected the PC board will ā€œbeepā€ and all power functions
will be disabled. Release the function button, remove load, then retry function.
*(weight limit exceeded, mechanical binding, etc),
Note
On 230 VAC models, line voltage (230VAC) is
supplied thru two fuses (located by IEC inlet)
to a transformer that reduces the line voltage
to 115 VAC before it reaches the PC board.
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Midmark 625 Barrier-Free® Examination Table Parts Manual

Type
Parts Manual

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