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Summary of Contents for iRest A380
- Page 1 A380 English Edition After-Sale Service Manual...
- Page 2 Content Section One: Diagram of internal structure Section Two: Main electrical spare parts Section Three: Troubleshooting/Circuit Analysis Section Four: Common fault table Section Five: Conclusion...
- Page 3 Section One: Diagram of internal structure Calf rest actuator L shape Mechanical backrest frame hands Driving box Slide rail Power box Safety lock Frame components Air pump Backrest actuator Transformer...
- Page 4 CON46：+5VA and start CON22：Upper CON45： CON3: CON2： CON47: Manual Power cord of Power cord of Power cord of signal limited switch controller mechanical hands testing backrest actuator testing calf rest actuator testing CON42 ： CON44： 24VB/12V Lower limited Ribbon wire switch of mechanical hands CON39：...
- Page 5 CON11：AC220V Input CON16 ： AC220V to the transformer CON26: 24VA/+5VB to the main board CON22： Switch power to the main board’s +5VA and start signal CON28: 12V/5V to armrest CON23: AC19V LED light transformer CON32：2 sets of AC22V to CON30: AC22V to main the transformer board CON35: 24A/12V to main...
- Page 6 Section Two: Main electrical spare parts Photo Item/Standard Rated Voltage Normal Resistance Flapping Motor 54ZYT24-21G DC24V 80～160Ω Kneading Motor 54ZYT24-24G DC24V 90～120Ω Walking Motor 62ZYT24-33W DC24V 80～160Ω Air Pump AC-9520B AC24V 110～120Ω...
- Page 7 Photo Item/Standard Rated Voltage Normal Resistance Primary： Transformer Black→Red 11～12Ω Black→White 7～8Ω A38-220V-24V/10A-19/4A AC220V Secondary： A38-110V-24V/10A-19/4A AC110V Black→Black 0.4～0.5Ω Solenoid Valve Trigeminy DC12V 40～50Ω Calf rest Actuator DDG24-242/78-H DC24V 100～150Ω Backrest Actuator DDG24-428/235-H DC24V 100～150Ω → → → → Remarks Ω...
- Page 8 Replace the defective components or the whole drive board →remote controller and IC does not work( or no working voltage in relay 105LM coil, so the transformer A380-220V-24V without power supply) →massage chair does not work This piezoresistor 10D471K...
- Page 9 Relay 105LM CON2 external power DC 5V switch power supply to the driver board and start signal supply of AC220V The relationship of DC5V switch power supply and drive power supply: AC220V input to CON11 on the driver board →The driver board get DV5V switch power supply →IC and remote controller have DC5V working voltage →Remote controller can start to work →Relay 105LM, control the power supply, its coil get the electricity...
- Page 10 Section Three: Troubleshooting/Circuit Analysis (Second) Kneading/flapping function does not work 2. Defective motor 3. Defective drive board 1. Circuit does not connect well Refer to figure 8, broken driver itself, so ②③ has input but ④⑥ no output, change it ①...
- Page 11 MOSFET Audion S8050 Fast recovery diodeSF56 IRF3607 Remarks 1 Refer to the left figure 7, drive board, motor and detection board are connected with the back function cable, but if there’s loose or defective on the pins to the plugs of back function cable and the frame, some function would not work or detect then, it cause the...
- Page 12 THREE． Trouble removal/electric principle analysis 三．Up & down walking motor does not work notno not wor not not work 2. Motor is broken 4. Main board is broken Wires do not connect well Detection circuit part is broken Fig.14， control signal part ①...
- Page 13 Paster field-effect SF56 Fast recovery tube tube IRF3607 Drive axle LP205D Actuator PMD2001D Fig.14. Up & down walking motor drive circuit diagram Fig.13. Up & down travel switch, width detection board, cycles detection board ① Defective limit test “travel switch” can cause it does not detect up & down list, cause unilateral no walking or race to the top (that is the motor keep working out of limit position).
- Page 14 THREE．Trouble removal/electric principle analysis 四．Foot roller does not work Fig.19 main board is broken, replace it if there is input in ②③ no input in④⑥ wires don’t connect well 2. Motor is broken Fig.18 3. Main board is broken 出，更换即 ①...
- Page 15 paster field-effect tube Audion S8050 Fast recovery tube SF56 IRF3607 Remarks Fig.16 main board and motor connect by wire harness, the contact pins of wire harness socket sometimes connect well，and cause motor does not work ， if the socket has voltage DC24V, it prove leg inside wire harness don’t connect well and defective motor, the socket...
- Page 16 THREE．trouble removal/electric principle analysis 五．Cylinder does not work 2. Cylinder is broken 3. Main board is broken defective input overcurrent protection “self-recovery protective tube Wires do not connect well WH60/300” ① Fig.23. Safeguard scram switch protection Fig.21 Defective pin of cylinder This device belong to overcurrent protection Motor coil open circuit→use Main board control segment is broke...
- Page 17 Actuator audion S8050 Relay 942H-2C-12DS Chip SMT132F103control signal Self-recovery protective tube WH60-300 IRF3607 paster field-effect tube Use interchange method to test cylinder good or not and check wire harness whether connect well by here Fig. 21. Cylinder wire harness connector Fig.22.
- Page 18 THREE．Trouble removal/electric principle analysis 六．Air pressure does not work 2. Air pump working once it is 3. Can’t open air pump 4. Single unit air bag does not deflates deflate One group air bag inflate, but never power on, can’t turn it off Pipe folded Solenoid...
- Page 19 Calf solenoid valve voltage output paster integration 74HCT595 Arm solenoid valve voltage output STN4828 paster field-effect tube Fig.25. solenoid valve drive section circuit diagram 3023 Optical coupler Calf section solenoid valve power Silicon controlled BCR5PM armrest solenoid valve power STN4828 paster field-effect tube Air pump AC24V power integration74HCT595...
- Page 20 THREE trouble removal/electric principle analysis 七．Armrest LED does not work 八．Backrest heating does not work Both sides does not work Both sides no heating One side does not work One side no heating Fig.1 ， check if main board Fig.29. check Fig.30，check connector Fig.31.backrest carbon connector is normal.
- Page 21 THREE Common fault elimination method comparison table phenomenon fault reason diagram ① piezoresistor 10D471K breakdown Switch on burn the fuse Fig.4 ② audion S8050、 diode 4007、 relay and other heavy working current components breakdown Machine does not work, controller DC5V switch power is broken. Or U8 optical coupler , 817、U9 compensating pipe have no response TL431、integration TNY274PN or transformer JY1905 are broken.
- Page 22 THREE study & conclusion Essential basic requirements of excellent after service engineer: Have primary electronic knowledge, know common components and parts and their function. 2. Can expertly use multimeter, distinguish components good or not by using multimeter. 3. Know product all function unit drive, control and check relation of all parts, can quickly judge fault.
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