Osaki OS4000 User manual

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OS4000Maintenance Service Manual
MODEL OS4000
Voltagespecification 110-120V
ByCustomerServiceDepartment
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TableofContents
ISpecifications .3
II. ..Appearance ofthechair .4
III . Nameandfunctions ofcomponents (remotecontroller) ...5
IV ..Malfunctioncatalog 6~8
VTroubleshootingflowchart ..9~13
VI Maintenance ofthebackrest 14~19
VII ..Maintenance oftheseatpart .20~25
VIII .Maintenance ofthefootrest ..26~29
Model OS4000
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I. Specifications
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II.Appearance ofthechair
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III.Nameand functionsofcomponents(remotecontroller)
Maincontrolbuttons
Auto-programbuttons
Angleadjustmentbutton
Lengthautoadjustment
buttonsforlegrest
Manualback
massage programs
The adjustment button
forback body
Remotecontroller
LCD
Sensorreceiver
Back speed/Air
intensity
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IV. Malfunctioncatalog
CommonTroubles andMaintenance Methods arelistedas following:
Serial
NO. Phenomenon Description Maintenance Methods Referto
01 No Function
WhenStarting.
The LCD isn tilluminating:
①Fuse(s)burnout (the one
IsinthePowerSourceBoxand
the otherone on the mainPCB).
②Powersupplycircuit poorly
connected.
③EMCBoardfails.
④mainPCBfails.
①ReplaceFuse(s).
②Replacethe powersupply
cord.
③ReplaceEMCBoard.
④ReplacemainPCB.
①Page 25/20
②(Ellipsis)
③&④
Page 23-24/18
02 No function
whenstarting.
The LCD isilluminating
①The Up orDownStroke
Photo-electricityfails.
MainPCBfails.
②Kneading ison without
pressing anykeywhen
starting and no response
bypressing otherkeys.
①Replacethe Up orDown
StrokePhoto-electricity.
②Replacethe mainPCB.
③WidthInspection Boardof
PCBfails, replaceit.
①Page 19/8
②Page
23-24/18
③Page 18/7.1
03 No Width
switchover.
①The terminalsofWidth
Inspection on mainPCB
and wiresarepoorly
connected.
②The terminalsofWidth
Inspection on massage
mechanical and wiresare
poorlyconnected.
③WidthInspection fails.
④MainPCBfails.
①&②Plug the terminal
securelyorreplacethe wires.
③ReplaceWidthInspection.
④Replacethe mainPCB.
①&②&③
Page 18/7.1
④Page
23-24/18
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04 No Rolling.
①TerminalorWirePoorly
Contacts.
②Down-strokePhoto-
ElectricitySubassemblyFails.
③Up-strokePhoto-electricity
SubassemblyFails.
④Rolling MotorFails.
⑤MainPCBFails.
①Plug the terminalsecurely
orreplacethe wires.
②ReplaceDown-Stroke
Subassembly.
③ReplaceUp-StrokeSub-
assembly.
④ReplaceRolling Motor.
⑤ReplacemainPCB.
①Page
23-24/18
②&③
Page 19/8
④Page 17/6.2
⑤Page
23-24/18
05
No kneading.
①The terminalson mainPCB
and wiresarepoorly
connected.
②Kneading motorfails.
③MainPCBfails.
①Plug the terminalsecurely
orreplacethe wires.
②Replacethe kneading
motor.
③ReplacemainPCB.
①&③
Page 23-24/18
②Page
16-17/6.1
06 No tapping.
①The terminalson main
PCBand wiresarepoorly
connected.
②Tapping motorfails.
③MainPCBfails.
①Plug the terminalsecurely.
②Replacethe tapping motor.
③ReplacemainPCB.
①&③
Page 23-24/18
②Page 18/6.3
07
No response
whenpressing
the keyson the
remote
controller.
①The terminalsand wiresare
poorlyconnected.
②The PCBinthe remote
controllerfails.
①Plug the terminalsecurely
orreplacethe wires.
②Replacethe remote
controller.
①Page 20/11
②Page 20/10
08
Back rest cannot
be reclined or
raised
①The terminalsof reclining
actuatorand wiresarepoorly
connected.
②The reclining actuatorfails.
③MainPCBfails.
①Plug the terminalsecurely.
②Replacereclining actuator.
③ReplacemainPCB.
①&②Page
22/15
②Page 23-24
/18
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09
Foot rest cannot
be raised or
lowered.
①The terminalsoffootrest
actuatorand wiresare
poorlyconnected.
②The footrest actuatorfails.
③MainPCBfails.
①Plug the terminalsecurely.
②Replacefootrest actuator.
③ReplacemainPCB.
①&②Page
22-23/16
②Page 23-24
/18
10 No gascharging
intheseat-pad.
①The terminalof the snuffle
valvesand wiresarepoorly
connected.
②The snufflevalvesfail.
③The inflatorpumpfails.
④MainPCBfails.
①Plug the terminalsecurely.
②Replacethe snufflevalves.
③Replacethe inflatorpump.
④ReplacemainPCB.
①&②&③
Page24/19
④Page
23-24/18
11 No gascharging
inthefootrest.
①The terminalofthe snuffle
valvesand wiresarepoorly
connected.
②The snufflevalvesfail.
③The inflatorpumpfails.
④MainPCBfails.
①Plug the terminalsecurely.
②Replacethe snufflevalves.
③Replacethe inflatorpump.
④ReplacemainPCB.
①&②&③
Page24/19
④Page
23-24/18
12
No gascharging
intheveil
forbackrest
①The terminalof the snuffle
valvesand wiresarepoorly
connected
②The snufflevalvesfail
③The inflatorpumpfails
④MainPCBfails
①Plug the terminalwell
②Replacethe snufflevalves
③Replacethe inflatorpump
④ReplacemainPCB
①&②&③
Page24/19
④Page
23-24/18
13
No extending
Orshrinking
of the calves-rest
①The terminalsand wiresare
poorlyconnected
②The output voltage isnot
24VAC
③The limit sensorfail
④Motorfails
①Plug the terminalwell
②Replacethe mainPCB
③Replacethe limitsensor
④Replacethe motor
①Page 25/22
②Page
23-24/18
③Page 27/24
④Page 26~27
/23
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V.Troubleshootingflowchart
Notesforrepairingchairorreplacingparts:
①Makesurethe powerisOFF beforetearingdownthe wires,movingterminalsorreplacingparts.
②Semiconductors(suchasICandothers)areveryeasytobedamaged bystatic,sowhen youtouch
the PCB,pleasemakesureyourbodyisgrounding(bywearingagirdingstaticring),oryourhandsare
touchingwithearthinggrip(householdelectricalappliancesputtingtoearth,suchasfridges,washers
and soon)toreleaseall staticofthe body.
1. Nofunctionwhenstarting.
NY
YN
Y
否
是N
N
Y
YY
N
N
N
Y
否
N
IstheLCD
illuminating? Isthefusemelted?
Replacefuse.
(Page 25/20)
AretheterminalsofUp
and DownStroke
Subassemblyconnected
securely?
Isthepowercord
open-circuit?
TheswitchesofUpandDown
StrokeSubassemblyfail ornot?
TheEMCBoard
failsornot?
Replace thepower
supplycord.
Replace it. (Page
23-24/18)
Connect
securely.
Replace them.
(Page 19/8)
Iskneadingonwithoutpressingany
keywhenstarting?
WidthInspection
Boardfailsornot?
Replace mainPCB.
(Page 23-24/18)
Replace Width
InspectionBoard.
(Page 18/7.1)
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2. Nowidthswitchover.
N
Y
Y
N
3. Nofunction fixed-spotorpartial）
N
Y
4. Norolling
N
YY
NY
NY
N
AretheterminalsofWidthInspectionBoardandmain
PCB connectedsecurely? Connectsecurely.
WidthInspectionBoardfailsornot? Replace it.
(Page 18/7.1)
Replace mainPCB.
(Page 23-24/18)
AretheterminalsofmainPCB connected
securely?
Connectsecurely.
Replace MainPCB.
(Page 23-24/18)
Aretheterminalsofrollingmotorwireand
mainPCB connectedsecurely? Connectsecurely
Rollingmotorfailsornot
Replace themotor
(Page17/6.2)
UpstrokePhoto-electricitysubassemblyfailsornot Replace it
(Page
19
/
8
)
DownstrokePhoto-electricitysubassemblyfailsornot
Replace it
(Page19/8)
Replace mainPCB
(Page 23-24/18)
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