Panasonic EP-MA73 Service Manual Download | Manualshive

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66

9.19.7.

Removing the Grease cover

1. Set the Intensity position at strongest.
2. Remove one screw and two Snap rivets.

Caution

When you install the Snap rivets, be sure to insert them fully.

If not, the Snap rivets are loosened during the operation, and it leads to the abnormal vibration noise like Bbbbbbbbb.

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Summary of Contents for EP-MA73

Page 1: ...EP MA73 Destination Canada USA TABLE OF CONTENTS PAGE PAGE 1 Specifications 2 2 Technical Descriptions 3 3 Location of Controls and Components 4 4 Operating Instructions 8 5 Service Mode 9 6 Troubleshooting Guide 22 7 Service Fixture Tools 39 8 AIR 40 9 Disassembly and Assembly Instructions 44 10 Exploded View and Replacement Parts List 75 ...

Page 2: ...ge head Intensity adjustable Approx 10 cm 3 9 in Massage speed Knead From approx 4 times min approx 73 times min Tap From approx 190 times min approx 520 times min one side Moving speed From approx 1cm s approx 5cm s Air Massage Air Pressure Calf 3 Approx 32 kPa 2 Approx 29 kPa 1 Approx 17 kPa It may vary with the area slightly Reclining angle Backrest Approx 120 170 Leg rest Leg sole massage sect...

Page 3: ...s the Pump and all the Electromagnetic valves are OFF 2 While the Reclining lift motor and the Ottoman lift motor operates the control of air stops Air is in the ventilation However when the leg stretch operates the Lift motor operates controlling the air 3 When in the operation by the Controller Off on switch and the Electric reclining lift and the Electric ottoman lift are operated the Pump stop...

Page 4: ...4 3 Location of Controls and Components 3 1 Massage Lounger ...

Page 5: ...5 ...

Page 6: ...6 3 2 Controller Display language on the controller may differ depending on the region the unit was purchased ...

Page 7: ...7 3 3 Display ...

Page 8: ...8 4 Operating Instructions 4 1 Turning on the Power ...

Page 9: ...2 While pushing the buttons of SWEDISH and STRETCH keep pushing the Off On button for more than three seconds SWEDISH STRETCH and USER3 lights and it buzzes three times 3 Push NECK then SHOULDER of MANUAL and at final push the OK button CO is displayed on the screen You can choose each operation modes in the Secret Mode list by pushing the BACK INTENSITY button After choosing push the OK button Yo...

Page 10: ...e procedures 1 4 of 5 1 Preparation of Secret Mode 2 Push the button of BACK INTENSITY till C0 appears and push the OK button 3 Push the OK again then 1 000 s place 100 s plate ten s place and single s place are shown every time you push the OK but ton ...

Page 11: ...usage time of Ottoman lift Display of the total usage time of Ottoman lift motor 0 9999 06 Total usage time of Reclining lift Display of the total usage time of Reclining lift motor 0 9999 07 Total usage time of Pump Display of the total usage time of Pump 0 9999 08 Total usage time of Massage block heater Display of the total usage time of Massage block heater 0 9999 09 Total usage time of Foot h...

Page 12: ...on Any of the following is shown Entry Operation mode Explanation of the summary Condition Type No Display Contents C4 Display of abnormal stop contents Display of the abnormal stop infor mation 0 Normal 1 Motor stalled 2 Sensor malfunction 3 Communication error 4 Sub PCB malfunction 5 Abnormal load 6 Massage block heater error 7 Foot heater error Entry Operation mode Explanation of the summary Co...

Page 13: ...nsor opera tions the Massage block stopped 00 Normal 01 Up down sensor detects no change 02 Up down sensor detects abnor mal change 03 Abnormal sensing in the begin ning of the Up down motor 04 Width sensor detects no change 05 Width sensor detects abnormal change 06 Abnormal sensing in the begin ning of the Width motor 07 Intensity sensor detects no change 08 Intensity sensor detects abnor mal ch...

Page 14: ...isplayed Example of the display is shown below After the memory is full of five abnormal stops the oldest memory is deleted when a new memory is memorized When 03 is selected all the memorized abnormal stops are deleted Abnormal stop information except the total operation time and each operation time is deleted Example Total usage time of the abnormal stop operation Latest error motor stalled 1 pr...

Page 15: ...top the operation halfway push the buttons of Off On or Stop on the Controller 5 10 Adjustment of Body pressure sensor CC 1 Proceed the procedures of 5 1 Preparation of Secret Mode 2 Push the button of BACK INTENSITY till CC appears and push the OK button 3 Push the OK button again Caution Be careful to check if there is no pressure applied on both right and left Massage balls and push the OK but ...

Page 16: ...Back Up down Ottoman switch Ottoman Up down Position switch Upward downward narrower wider Back intensity Strong weak Massage block heater Off on Foot heater Off on Manual Neck shoulder middle back lower back full back tap Checking the temperature of the Heater 1 You can check the temperature of the Heater if you push the OK button after 5 12 2 then push the REPEAT button and the ULTRA KNEAD butto...

Page 17: ... left Massage balls is within 5 C 41 F If the values are within this range it is not faulty Checking procedures 1 Start CE mode of the Secret Mode of the Controller 2 If you push the REPEAT button for several times For example CE Once 02 Twice 05 Thrice 2 Fourth 4 This means that one of Heal balls is 25 C 77 F and the other is 24 C 75 F If you push OK it resumes to the beginning You can know the o...

Page 18: ...ce and turn on the Power source switch box 2 While pushing the buttons of DEEP and SHIATSU keep pushing the button of Off On for more than three seconds USER 1 2 3 buttons light and buzzer sounds once 3 Push the button of Ottoman upward Packing conditions are as the following list Push the Quick Stop button to stop the operation ...

Page 19: ...ub PCB Hz sensor error Sub PCB F03 Massage block heater error Heater discon nection short circuit Thermistor poor con nection Heater Thermistor NO F04 Massage block heater error Thermistor disconnection Thermistor F05 Massage block heater error Thermistor short circuit F06 Massage block heater error Triac 301 on the Main PCB short circuit Main PCB F71 Foot heater error Heater malfunction Heater Th...

Page 20: ...9999 11 Operation time of SWEDISH Display of total operation time of SWEDISH 0 9999 12 Operation time of DEEP Display of total operation time of DEEP 0 9999 13 Operation time of SHIATSU Display of total operation time of SHIATSU 0 9999 14 Operation time of STRETCH Display of total operation time of STRETCH 0 9999 15 Operation time of NECK SHOUL DER Display of total operation time of NECK SHOULDER ...

Page 21: ... change 15 Massage block heater error 16 Foot heater error C9 01 Display of abnormal stop condition Display of the Controller condition when abnormal stop occurred 02 Display of accumulative abnormal stop conditions Display of accumulative abnormal stop conditions 03 Delete of the display of accumula tive abnormal stop conditions Delete of the display of accumulative abnormal stop conditions CA Ch...

Page 22: ...22 6 Troubleshooting Guide 6 1 Checking ...

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Page 34: ...the Controller and push the buttons of the operations shoulder hand arm lower back and leg foot that you check 2 Push the AIR INTENSITY button on the Controller and check the air pressure If the values are within the tolerance there is nothing wrong with Air bags Pump and Air hoses If not the following reasons are assumed Hoses between Air bags and Pump are bent and loose Operation failure of each...

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Page 36: ...6 11 Light yellow Seat side Hip 4th 18 4 6 29 1 7 29 7 7 2 Brown Shoulder Shoulder side 1st 12 7 6 24 4 7 28 8 7 1 Black Areas Air bags Pressure intensity patterns Strong 1 Strong 2 Strong 3 Hose No Hose color Leg Foot inside 2nd 17 6 6 30 7 7 33 0 7 6 Light yellow Foot outside 2nd 16 7 6 29 9 7 33 1 7 4 Gray Leg top 2nd 17 6 6 31 0 7 33 3 7 7 Brown Leg back 2nd 16 7 6 29 3 7 30 8 7 5 Black Hand A...

Page 37: ... Checking the Sensors Procedures 1 Push the Off On button on the Controller 2 Check following Connectors pin No and check whether there is the output voltage of HIGH LOW DS5V 0V when moving each Sensor boards ...

Page 38: ...b PCB The following values are in the standby conditions with the Off On switch on the Controller pushed Values with are when each operations are executed Output voltages are approximate Remove Connectors to check the resistance of the parts ...

Page 39: ...39 7 Service Fixture Tools ...

Page 40: ...40 8 AIR 8 1 Air tube allocation Main body ...

Page 41: ...41 8 2 Air tube allocation Ottoman ...

Page 42: ...42 8 3 Air tubes and Wiring Connecting cord for powr source Sub PCB Power source switch box ...

Page 43: ...43 8 4 Ottoman hose allocation ...

Page 44: ...it upward to remove it 9 2 Removing the Side covers 1 Remove the Armrests 2 Remove three screws each on right left sides and five hooks each on right left sides Caution The work would be easy if you insert the hook in the front of the Side cover two each on right left first 9 3 Removing the Elbow bases 1 Remove the Armrest 2 Remove the Side cover 3 Remove two bolts each on right left sides of the ...

Page 45: ...cover fit the Leg cover into the Frame and slide it backward so that hooks fit together 9 5 Removing the Leg cover back 1 Remove two screws fixing the Leg cover Caution Install the Leg cover back first before installing the Leg cover right left 2 Pull off a pin and a snap pin each on right left sides fixing the Castor and remove the Castor Caution Be careful of the directions of the snap pin when ...

Page 46: ...est position And be sure to have the hooks inside when installing the Rear covers 9 7 Removing the Shoulder side air bags 1 Flip over the Shoulder side cloth and remove the Shoul der side air bag 2 Remove three Brushcllips each on right left sides and one Hose each on right left sides and remove the Shoulder air bag 3 Remove five screws each on right left sides of the Side cover inside ...

Page 47: ...over fitting Caution When you installing the Seat side unit the work would be easier if you tighten seven screws halway first and tighten them fully 5 Cut Cable ties and remove two Hoses each of right left sides Caution When assembling pass the Hose through the hole of A 9 8 1 Removing the Seat side unit left 1 Proceed the procedures of Removing the Seat side unit 2 In the position of B remove the...

Page 48: ...o anchor clips and remove the Seat side cloth Caution When installing anchor clips pierce Air bags and cloth together 7 Remove the Air bag and the Hose 9 10 Removing the Seat You can also remove the Seat cushion 1 Remove the Armrests 2 Remove the Side covers 3 Remove the Elbow bases 4 Remove the Seat side units 5 Remove two J hooks each on right left sides 6 Lift the Seat and cut Cable ties and re...

Page 49: ...emoving the Under cover front 1 Remove the Armrest 2 Remove the Side cover 3 Remove the Elbow base 4 Remove the Seat side unit 5 Remove the Seat 6 Turn on the switch and lift the Ottoman to the highest point with the Controller 7 Remove one Brushclip and ten Push turn rivets which install the Under cover front Caution Rotate the Ottoman with the Ottoman rotation lever so that the work would be eas...

Page 50: ...ected to the Under box top left Caution Be careful not to bend pipes of the Electromagnetic valve Be careful of the arrangement of the Hoses when install ing them 11 Remove three screws on left and remove the Under box 12 Remove four Under box bottom fixing screws and take out the Under box bottom from front 9 13 Removing the Rear cover You can remove the Hip air bags Procedure 7 or later 1 Remove...

Page 51: ...emoving the Ottoman 1 Remove the Armrests 2 Remove the Side covers 3 Remove the Elbow bases 4 Remove the Seat side units 5 Remove the Seat 6 Remove the Under cover front 7 Lift the Ottoman and remove four Hoses and one Con nector which are connected to the Ottoman 8 Pull the Ottoman rotation lever and rotate the ottoman and remove two screws each on right left sides which install the inner sides o...

Page 52: ...zippers and cut Cable ties and open the zippers Remove five J shaped hooks and open the Cover Caution When in assembly pass the tips of the zippers though the hole of the rubber Bind the left tip of the zippers with a Cable tie 12 Remove four screws and remove the Cushion 13 Pull out the tip of the zippers and cut Cable ties and open the zippers 14 Remove six screws which install the Foot under co...

Page 53: ...on Be careful of the directions when in assembly 18 Insert a screwdriver putting between the Foot air bags and the Foot cover and remove six screws which fix the Foot heater 19 Remove two Anchor clips each on right left sides on back which fix the Foot air bags 20 Remove the Foot heater Caution Work would be easy in assembly if the Foot heater is inserted from the back ...

Page 54: ...move the right left Slide spring cover Caution Hook the Hook first and tighten screws when in assem bly 23 Remove the right left Slide pulling srings 24 Slide the frame so that the screws on the rail are visible and remove four screws each on right left sides and cut Cable ties Then remove three Hoses and one Connector 25 Pull out the tip of the zippers of the Leg cloth from inside and cut the Cab...

Page 55: ...Push the Lower button of the Controller and move the Massage mechanism block to the lowest position 3 Remove four screws and remove the Massage block cover 4 Remove the Fixing screw for the Connecting cord for power source and the Ground wire and remove three Connectors 5 Cut the Cable tie T30R and remove the Connecting cord for power source from the Massage block cover clip 6 Remove four screws e...

Page 56: ...Be sure to handle the Massage mechanism block carefully so that the PCB of the Pressure sensor is not pushed to the desk or given extra pressure when putting the Massage mechanism block which could lead to the crack of the PCB This may eventually cause the malfunction such as The Body pressure levels on the Controller does not increase It does not scan or The operation is not stable etc ...

Page 57: ...ge mechanism block to the lowest position or use the secret mode CE to move the Massage mechanism block to the lowest position 2 First remove four screws which install the Rail piece set left and remove the Rail piece left Then install the Massage block jig You can unload the Massage mechanism block without the Massage block jig which prevents the fall of the Massage mech anism block after the Rai...

Page 58: ...ews on the Rail piece set right 5 Then tighten four screws on the Rail piece set left 6 Move the Massage mechanism block to the highest position using the Secret mode CE Push the button of longer to move the Massage mechanism block to the highest position till the P P P sound is heard Caution Check if the Massage mechanism block is installed horizontally moving the block Refer to the figure 1 If t...

Page 59: ...r each Connecting cords do not touch Belts or the Rear cover fixing plate or are not hooked on the Up down pinions on both right left sides And check also if each Connecting cords are not extremely tense when the Massage mechanism block is at the highest position Caution When installing the Rear cover move the Massage mechanism block to the highest position first so as to prevent the hooking of ea...

Page 60: ...60 9 18 Allocation of the Lead wires of the Massage mechanism block Allocation of the Lead wires of the Main PCB each Motors other parts Cable ties are as follows ...

Page 61: ...06 on the Main PCB 2 Cut the Cable tie T30R x 2 T18S x1 which bind the Lead wires 3 Remove two screws on the Up down gear box B and the Up down sensor install stand and remove the Up down sensor Caution in installing When installing the Up down sensor make the leg of the sensor install stand fit into the groove of the Up down gear box B ...

Page 62: ...sor install stand Caution in installing The Massage block frame and the Intensity sensor should be installed firmly Otherwise it leads to the overrun in the direction of the Strong When installing each Lead wires with Cable ties check if Lead wires are not abnormally pulled or hooked operating the Massage mechanism block in the directions of strong or weak Pay special attention on the 1 because th...

Page 63: ... Snap pin on the Width sensor plate Caution in installing When you install Lead wires with Cable ties operate the Massage mechanism block in the Intensity strong weak directions to check if the Lead wires are not tense or hooked Pass the Connecting cord for Width sensor through the Pro tection tube and install the tube with the Connecting cord for Tapping motor by the Cable tie T30R Bind them on t...

Page 64: ...4 Removing the Width motor 1 Disconnect the Connectors CN501 CN1 CN30 on the Main PCB 2 Cut the Cable ties T18S T30R binding the Lead wires 3 Remove the Width belt 4 Remove two Install screws on the Width motor ...

Page 65: ...on the Up down gear box and the Up down driving install plate 5 Remove four Install screws on the Up down gear box A B 6 Remove two Install screws on the Up down gear box and the Up down motor One is the Grounding screw 9 19 6 Removing the Up down shaft Up down shaft bolt Remove the Massage mechanism block from the Massage chair before executing this work 1 Remove the Up down shaft bolt on the Pin...

Page 66: ...sity position at strongest 2 Remove one screw and two Snap rivets Caution When you install the Snap rivets be sure to insert them fully If not the Snap rivets are loosened during the operation and it leads to the abnormal vibration noise like Bbbbbbbbb ...

Page 67: ...rocedures of 1 7 of 9 12 Removing the Under box and disconnect the Connectors of the Ottoman lift unit CN11 CN13 and removing the Grounding terminal on the Sub PCB 3 Remove the Ottoman pin long and the Snap pin and you can remove the Ottoman lift unit It would be easier to remove the Ottoman lift unit after removing the Massage mechanism block Caution in installing When you install the Snap pin be...

Page 68: ...ving the Massage mechanism block The work would be safe and easy if the Massage mechanism block is removed 2 Proceed the procedures of 1 7 of 9 12 Removing the Under box and disconnect the Connectors of the Reclining lift unit CN10 CN12 and remove the Grounding terminal on the Sub PCB ...

Page 69: ...nap pin and you can remove the Lift unit It would be easier to remove the Reclining lift unit after removing the Massage Caution in installing Be careful of the binding of Cable ties Caution in installing When you install the Snap pin bend the Snap pin at approx 45 degree ...

Page 70: ...cover and 9 15 Removing the Massage mechanism block Remove the Massage mechanism block before removing the Rear frame 2 Pull out three Pins from the Rear frame Be careful of the Rear frame which may fall down after Pins are pulled out Caution in installing When you install the Snap pin bend the Snap pin at approx 45 degree ...

Page 71: ...71 9 22 Appearance checking Check if Cable ties Screws Connectors and Hoses are properly installed ...

Page 72: ...72 9 23 Grease ...

Page 73: ...73 ...

Page 74: ...ar cover A 60 61 Slide guide right Slide guide left 65 66 Foot slider right Foot slider left 1 9 10 Rear frame Guide roller Rail piece set Molycoat White WEP003W8927 240 Guide roller 248 249 251 252 Rubber ring Pinion C Pinion B Guide roller B 250 Guide roller B block 247 Guide roller C 246 Guide roller C block 276 Arm slide shaft two E Paste Yellow WEP003Y8947 276 Width spring 282 Arm pulling spr...

Page 75: ...75 10 Exploded View and Replacement Parts List ...

Page 76: ...76 10 1 Exploded View 1 ...

Page 77: ...77 10 2 Exploded View 2 ...

Page 78: ...78 10 3 Exploded View 3 ...

Page 79: ...79 10 4 Exploded View 4 ...

Page 80: ...80 10 5 Exploded View 5 ...

Page 81: ...81 10 6 Exploded View 6 ...

Page 82: ...82 10 7 Exploded View 7 ...

Page 83: ...SS 12 25 WEPMA70L0057 ELBOW SIDE FIXING BRACKET 2 26 WEPMA70K3807 UNDER CLOTH 1 27 WEP596K0457 PUSH TURN RIVET 15 28 WEP3510L9687 SCREW STAINLESS 1 29 WEP005W8517 CABLE TIE MEDIUM 3 30 WEP005W8527 CABLE TIE LARGE 1 31 WEPMA70K1578 LOCK RELEASE LEVER HEAD 1 32 WEPMA70L1567 LOCK RELEASE LEVER B 1 33 WEPMA70L9647 SCREW STAINLESS 1 34 WEPMA70L1587 LOCK RELEASE LEVER A 1 35 WEPMA70L1197 LOCK RETURN SPR...

Page 84: ...NG 1 85 WEPMA73L0347 LEG PIPE 1 86 WEPMA73L0557 LEG COVER 1 87 WEPMA73L0847 LEG AIR BAG TOP RIGHT 1 88 WEPMA73L0927 LEG AIR BAG TOP LEFT 1 89 WEPMA73L0827 LEG AIR BAG BACK RIGHT 1 90 WEPMA73L0837 LEG AIR BAG BACK LEFT 1 91 WEPMA70L0317 LEG UNDER URETHANE 4 92 WEP3200L0467 ANCHOR CLIP 16 93 WEPMA73L0947 LEG AIR BAG BOTTOM R 1 94 WEPMA73L0967 LEG AIR BAG BOTTOM L 1 95 WEPMA73L0977 FOOT SIDE AIR BAG ...

Page 85: ...D JOINT 1 145 WEPMA73L0587 HOSE SEAT UNDER 1 146 WEPMA70L0197 3 ROW I SHAPED JOINT 1 147 WEPMA73L0787 LEG HOSE TOP SEAT UNDER 1 148 WEPMA73L0337 LEG HOSE BACK SEAT UNDER 1 149 WEPMA73L0817 FOOT HOSE SEAT UNDER 1 150 WEPMA70L0147 L SHAPED 2 ROW JOINT 1 151 WEPMA73K3608 ARMREST RIGHT BLACK 1 152 WEPMA73K3718 ARMREST LEFT BLACK 1 153 WEPMA70L7937 INSTALL SCREW SET 1 154 WEPMA73K4408 PC BOARD W COMPON...

Page 86: ...1 206 WEPMA70K3237 SIDE COVER INSIDE RIGHT 1 207 WEPMA70K3247 SIDE COVER INSIDE LEFT 1 208 WEPMA50K9537 SCREW STAINLESS 12 209 WEPMA73K3178 REAR COVER TOP BLACK 1 210 WEPMA73K3168 REAR COVER BOTTOM BLACK 1 211 WEP3010K0997 SCREW RIVET 2 212 WEPMA73K3818 SEAT SIDE CLOTH RIGHT BLACK 1 213 WEPMA73K3828 SEAT SIDE CLOTH LEFT BLACK 1 214 WEPMA70K3837 INSIDE COVER RIGHT 1 215 WEPMA70K3847 INSIDE COVER LE...

Page 87: ...STAINLESS 2 266 WEP3510L0227 UP DOWN SHAFT INSTALL PLATE 1 267 WEP3530L1037 WIDTH MOTOR 1 268 WEPMA70L2148 WIDTH MOTOR SPEED SENSOR 1 269 WEPMA70L1108 WIDTH BELT 1 270 WEPMA70L4958 INTENSITY SENSOR 1 271 WEPMA70L1478 INTENSITY DRIVING BLOCK 1 272 WEPMA73L1438 WIDTH DRIVING BLOCK 1 273 WEPMA50L0337 PROTECTION CLOTH 1 274 WEP3200K0457 BRUSH CLIP 2 275 WEPMA50L0207 ECCENTRIC LINK PLATE RIGHT 1 276 WE...

Page 88: ...898 POWER SOURCE CONNECTION CORD 1 299 WEPMA10L5048 FERRITE CORE 1 WEPMA73K3768 OTTOMAN BLOCK BLACK 1 WEPMA73L4138 MASSAGE MECHANISM BLCOK 1 WEPMA73K8238 PACKAGING 1 WEPMA73L8798 OPERATING INSTRUCTIONS 1 Safety Ref No Part No Part Name Description Q ty Remarks ...

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