Panasonic EP-MA73 Service Manual

Massage lounger

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Operating instructions manual (59 pages)

Manual (58 pages)

Operating instructions manual (59 pages)

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Summary of Contents for Panasonic EP-MA73

Page 1 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 © Panasonic Corporation 2014 Unauthorized copy- ing and distribution is a violation of law.
Page 2: Specifications
1 Specifications Power Supply AC 120 V 60 Hz Rated Current 3.2 A Upper Body Massage area (Up-Down) Approx. 78 cm (30.7 in.) (The massage heads move a total of approx. 62 cm (24.4 in.)) Massage Massage area (Left-Right) Distance between massage heads during operation (including width of massage heads) Neck, shoulder, back, lower back: Approx.
Page 3: Technical Descriptions
2 Technical Descriptions 2.1. Operation of Electromagnetic Valves and Air Bags Air massage is operated driving the Pump unit x 1pc, 3-way 3-roll electromagnetic valve, and 3-way 4-roll electromagnetic valve. 1. When the operation stops, the Pump and all the Electromagnetic valves are OFF. 2.
Page 4: Location Of Controls And Components
3 Location of Controls and Components 3.1. Massage Lounger...
Page 6 3.2. Controller * Display language on the controller may differ depending on the region the unit was purchased.
Page 7 3.3. Display...
Page 8: Operating Instructions
4 Operating Instructions 4.1. Turning on the Power...
Page 9: Service Mode
5 Service Mode 5.1. Preparation of Secret Mode Before proceeding to each Secret Modes, execute the following Preparation of the Secret Mode. Insert the Power plug to the power source and turn on the Switch on the Power source switch box. 1.
Page 10 5.2. Display of total usage time [C0] 1. Proceed the 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 5.3. Display of each operation time [C3] 1. Proceed the procedures of 5.1. Preparation of Secret Mode. 2. Push the button of BACK INTENSITY till C3 appears, and push the OK button twice. 3. Then, push the BACK INTENSITY and choose from 01 to 08, and from 11 to 16. 4.
Page 12 5.4. Display of malfunction analysis-1 [C4] Category of abnormal stop is shown. 1. Proceed the procedures of 5.1. Preparation of Secret Mode. 2. Push the button of BACK INTENSITY till C4 appears, and push the OK button. Any of the following is shown. Entry Condition Operation mode...
Page 13 5.7. Display of malfunction analysis-4 [C8] It is shown in which sensing is when the abnormal stop occurred. 1. Proceed the procedures of 5.1. Preparation of Secret Mode. 2. Push the button of BACK INTENSITY till C7appears, and push the OK button. Any of the following is shown. Entry Condition Operation mode...
Page 14: Motor Stalled
5.8. Display of function analysis-5 [C9] It is shown in which operation the massage chair stopped abnormally and what malfunction has occurred. 1. Proceed the procedures 1-3 of 5.1. Preparation of Secret mode. 2. Push the button of BACK INTENSITY till C9 appears, and push the OK button. 3.
Page 15 5.9. Checking after assembly [CA] Check if the Massage mechanism block is properly assembled or there is nothing wrong with the Sensors or Motors. * Detect failures in Sensors or Motors. 1. Proceed the procedures of 5.1. Preparation of Secret Mode. 2.
Page 16 5.11. Manual mode [CE] Manual mode is used to remove or install the Massage mechanism block from or to the Massage chair, or to check each operations. 1. Proceed the procedures of 5.1. Preparation of Secret Mode. 2. Push the button of BACK INTENSITY till CE appears, and push the OK button. 3.
Page 17 5.12. Checking the Heater Check if the Heater increases its temperature properly by the list of the room temperature and its time till it reaches designated tem- peratures. (Our criterion is that the spot touching the human body is 50 °C (122°F). However, there is the balance 5 °C (41°F) in the Heat sen- sor and the spot of the human body touching the Massage ball, therefore in the list 45 °C (113°F) is used as criterion.) Caution: •...
Page 18 5.13. Packing mode [00] Proceed the following procedures of Preparation of Secret mode. 1. Insert the Power cord to the power source, 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.
Page 19: Sensor Malfunction
5.14. Error Display If there is something wrong with each Sensors, each Motors, Power source and Signal lines, the following error codes blink for approximately 10 seconds. Use this chart just for your reference. Error Malfunction Phenomena Controller Wrong parts Reusable codes Body pressure sensor *including the loose...
Page 20: Communication Error
5.15. Self-Diagnosis list Entry Operation mode Explanation of the summary Display Type Display of total operation time Display of total operation time 0 - 9999 01 Operation time of Width motor Display of total operation time of Width 0 - 9999 motor 02 Operation time of Intensity motor Display of total operation time of Intensity...
Page 21: Massage Block Heater Error
Entry Operation mode Explanation of the summary Display Type Display of Sensor faulty Display of the sensor condition in which 00: OK abnormal stop occurred 01: Up/down sensor no change 02: Up/down sensor abnormal change 03: Abnormal when Up/down motor starts 04: Width sensor no change 05: Width sensor abnormal change...
Page 22 6 Troubleshooting Guide 6.1. Checking...
Page 34 6.2. Checking the Pressure of the Air bags You can find the pressure leakage of the Air bags by this checking. Remove the Under cover and the Side cover. Connect the Air pressure gauge (WEP000S8908) and the Hose (WEP000K8917) to the Hose from the Under box, which you want to check the air pressure.
Page 36 * Pressure levels are as follows; (50Hz) Areas Air bags Pressure intensity patterns Strong 1 Strong 2 Strong 3 Hose No. Hose color Foot inside 16.6±6 27.4±7 28.5±7 Light yellow Foot outside 16.1±6 26.9±7 28.9±7 Gray Leg top 16.3±6 26.9±7 28.4±7 Brown Leg back...
Page 37 6.3. 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 6.4. Wiring diagram of Main PCB and Sub 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 7 Service Fixture & Tools...
Page 40 8 AIR 8.1. Air tube allocation (Main body)
Page 41 8.2. Air tube allocation (Ottoman)
Page 42 8.3. Air tubes and Wiring (Connecting cord for powr source - Sub PCB, Power source switch box)
Page 43 8.4. Ottoman hose allocation...
Page 44 9 Disassembly and Assembly Instructions Caution in Disassembly/Assembly • Be careful not to cut the cloth, Hoses, or Lead wires when cutting cable ties. • Bind the cable ties on the white tapes on the Lead wires. 9.1. Removing the Armrests 9.3.
Page 45 9.4. Removing covers 2. Pull off a pin and a snap pin each on right/left sides fixing the Castor, and remove the Castor. (right/left) Caution • Be careful of the directions of the snap pin when install- 1. Remove the Armrest. ing it.
Page 46 2. Remove two Pushturn rivets on the Rear cover bottom, 9.7. Removing the Shoulder side and pull out the Rear cover bottom being careful of the air bags hooks. 1. Flip over the Shoulder side cloth and remove the Shoul- der side air bag.
Page 47 Caution 5. Cut Cable ties and remove two Hoses each of right/left • Be careful of three hooks each on right/left sides of inner sides. side of the Side cover inside when installing. Caution • When assembling, pass the Hose through the hole of A. •...
Page 48 9.9. Removing the Seat side air unit 9.10. Removing the Seat 1. Remove the Armrest. You can also remove the Seat cushion. 2. Remove the Side cover. 1. Remove the Armrests. 3. Remove the Elbow base. 2. Remove the Side covers. 4.
Page 49 7. Remove one Push-turn rivet, which installs the Seat. 9.11. Removing 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.
Page 50 9.12. Removing the Under box • Be careful of the arrangement of the Hoses when install- ing them. 1. Remove the Armrests. 2. Remove the Side cover. 3. Remove the Elbow bases. 4. Remove the Leg covers. 5. Removing the Seat side unit. 6.
Page 51 Removing the Hip air bag 7. Lift the Ottoman, and remove four Hoses and one Con- 7. Fasten one clamp each on right/left sides with pliers on nector, which are connected to the Ottoman. one Hose each on right/left sides of the Hip air bags. 8.
Page 52 9. Remove the Ottoman base cover with care to five Hooks 12. Remove four screws and remove the Cushion. on right and seven Hooks on left. 10. Remove four screws each on right/left sides, which install the Rotation shaft, and remove the Ottoman. 13.
Page 53 15. Remove Magic Tapes, and cut two Cable ties. 17. Remove the Shiatsu sheets. Caution • 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.
Page 54 21. Remove two Anchor clips each on right/left sides in the 23. Remove the right/left Slide pulling srings. front, which fix the Foot air bags, and remove the Foot air 24. Slide the frame so that the screws on the rail are visible, bags.
Page 55 Caution 4. Remove the Fixing screw for the Connecting cord for • When in assembly, put the plate of the Cloth between the power source and the Ground wire, and remove three Frame and the Leg cover. Connectors. 26. Remove eight Hoses and eight Anchor clips, and remove the Air bags.
Page 56 Caution Hold the Massage mechanism block by hand not to have it fall down. Be careful of the directions of the Rail piece set left/right. Caution in handling the Massage mechanism block 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.
Page 57 9.16. Adjusting the Up/down sensor gear When the Massage mechanism block is removed from the Chair, the position of the Up/down sensor gear changes resulting in the change of the up/down stop position. When installing the Massage mechanism block on the Rear frame, be sure to adjust the posi- tion with the Up/down sensor gear.
Page 58 Installing the Massage mechanism block 1. Before installing the Massage mechanism block on the Rear frame, push the button of Off/On on the Controller twice to move the Massage mechanism block to the lowest position. Caution: If you do not carry out this procedure and install the Massage mechanism block on the Rear frame and operate it, the Massage mechanism block overruns and its gears become cracked not recognizing the up/down posi- tions.
Page 59 9.17. Tips in installing the Connecting cord for power source Move the Massage mechanism block to the highest position. * After installing the Connecting cord for power source, be sure to move the Massage mechanism block up an down pushing the buttons on the Controller by Secret mode (CE) so as to check whether 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.
Page 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 9.19. Tips of disassembly and assembly of the Massage mechanism block 9.19.1. Removing the Up/down sensor 1. Disconnect the connector (CN106) on the Main PCB. 2. Cut the Cable tie T30R x 2, T18S x1, which bind the Lead wires. 3.
Page 62 9.19.2. Removing the Intensity sensor 1. Disconnect the Connector (CN103) on the Main PCB. 2. Cut the Cable tie T30R x 2, T18S x 1, which bind the Lead wires. 3. Remove the Install screw on the Massage block frame and the Intensity sensor install stand. Caution in installing •...
Page 63 9.19.3. Removing the Width sensor Caution in installing • When you install Lead wires with Cable ties, operate the 1. Disconnect the all the Connectors on the Main PCB. Massage mechanism block in the Intensity-strong/weak 2. Cut the Cable tie T30R, T18S binding each Lead wires. directions to check if the Lead wires are not tense or 3.
Page 64 9.19.4. 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 9.19.5. Removing the Up/down gear block * You cannot replace Up/down shaft or Up/down motor without disassembling the Up/down gear block. * Proceed the Procedure of 1-4 of 9.19.3 Removing the Width sensor. 1. Remove the Massage mechanism block from the Rear frame. 2.
Page 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.
Page 67 9.20. Removing each Lift units 9.20.1. Removing the Ottoman lift unit 1. Proceed all the procedures of 9.15. Removing 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 Ottoman lift unit (CN11, CN13) and removing the Grounding terminal on the Sub PCB.
Page 68 9.20.2. Removing the Reclining lift unit 1. Proceed all the procedures of 9.15. Removing 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 3. Remove one Push-rivet. 4. Remove the Ottoman lift pin long and the Snap 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.
Page 70 9.21. Removing the Rear frame 1. Proceed all the procedures of 9.11. Removing the Under cover front, 9.13. Removing the Rear cover and 9.15. Removing the Massage mechanism block. * Remove the Massage mechanism block before removing the Rear frame. 2.
Page 71 9.22. Appearance checking Check if Cable ties, Screws, Connectors, and Hoses are properly installed.
Page 72 9.23. Grease...
Page 74 Part name Grease Grease No. Ottoman lift unit Alvania WEP003T8907 (Light brown) Main frame (Connection shaft) Up/down worm wheel Up/down motor worm wheel Intensity gear (Fan-shaped two) Reclining lift unit Up/down shaft Up/down gear cover A 60, 61 Slide guide right, Slide guide left 65, 66 Foot slider right, Foot slider left 1, 9, 10...
Page 75 10 Exploded View and Replacement Parts List...
Page 76 10.1. Exploded View-1...
Page 77 10.2. Exploded View-2...
Page 78 10.3. Exploded View-3...
Page 79 10.4. Exploded View-4...
Page 80 10.5. Exploded View-5...
Page 81 10.6. Exploded View-6...
Page 82 10.7. Exploded View-7...
Page 83 10.8. Parts List Safety Ref. Part No. Part Name & Description Q’ty Remarks WEPMA70L0087 REAR FRAME WEP3530L0007 SIDE HINGE FITTING RIGHT WEP3530L007 SIDE HINGE FITTING LEFT WEP3530L6717 SCREW, STAINLESS WEP3200L0887 RESIN BUSHING WEPMA70L0267 REAR COVER FIXING PLATE WEP2000L9567 SCREW, STAINLESS WEP2005L0687 CHAIR SIDE CORD WIRE WEPMA50L0767...
Page 84 Safety Ref. Part No. Part Name & Description Q’ty Remarks WEPMA70L0327 OTTOMAN REAR COVER WEPMA70L0407 SLIDE SPRING COVER RIGHT WEPMA70L0587 SLIDE SPRING COVER LEFT WEPMA70L0107 SLIDE GUIDE RIGHT WEPMA70L0127 SLIDE GUIDE LEFT WEPMA70L1507 SLIDE STOPPER RIGHT WEPMA70L1517 SLIDE STOPPER LEFT WEPMA73L0177 SLIDE RETURN SPRING WEPMA70L1407...
Page 85 Safety Ref. Part No. Part Name & Description Q’ty Remarks WEPMA73L0658 SHOULDER SIDE AIR BAG L WEPMA73L0577 SHOULDER SIDE HOSE WEPMA70L0987 HIP AIR BAG RIGHT 120 WEPMA70L0857 HIP AIR BAG LEFT 121 WEPMA73L0757 HIP HOSE 122 WEPMA70L0117 SEAT SIDE AIR BAG RIGHT 123 WEPMA70L0137 SEAT SIDE AIR BAG LEFT 124 WEPMA73L0797...
Page 86 Safety Ref. Part No. Part Name & Description Q’ty Remarks 177 WEPMA70L2437 3 WAY 4 ROW VALVE 178 WEPMA73L0677 HOSE CONNECTION MEDIUM 179 WEPMA73L0507 HOSE CONNECTION 180 WEPMA73L0667 HOSE CONNECTION SMALL 181 WEP2110L0517 BOARD SUPPORT 182 WEP2000L6967 PCB BUSHING C 183 WEPMA70L0637 GROUNDING PLATE 184 WEPMA70L3518...
Page 87 Safety Ref. Part No. Part Name & Description Q’ty Remarks 237 WEPMA50L0047 MAIN FRAME 238 WEPMA70L1467 UP/DOWN GEAR 239 WEPMA73L0378 UP/DOWN SHAFT 240 WEP3510L6057 UP/DOWN SHAFT BOLT 241 WEPMA70L3537 FITTING 242 WEPMA70L1457 GUIDE ROLLER C BLOCK 243 WEP3530H1927 GUIDE ROLLER C 244 WEP578AL0317 RUBBER RING 245 WEPMA70L1447...
Page 88 Safety Ref. Part No. Part Name & Description Q’ty Remarks 297 WEP780L0447 MASSAGE BLOCK COVER CLIP 298 WEPMA70L2898 POWER SOURCE CONNECTION CORD 299 WEPMA10L5048 FERRITE CORE WEPMA73K3768 OTTOMAN BLOCK BLACK WEPMA73L4138 MASSAGE MECHANISM BLCOK WEPMA73K8238 PACKAGING WEPMA73L8798 OPERATING INSTRUCTIONS...

Panasonic EP-MA73 Service Manual

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