Johnson AFG 7.2AT Service Manual Download Page 4 | Manualshive

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4.7 Motor Control Board (MCB) Replacement

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4.8 Incline Motor Replacement

.................................................................................................................. 31

4.9 Console Replacement

.......................................................................................................................... 32

4.10 Console

C

ircuit

B

oard Replacement………………………………………………………………

...

………33

4.11 Heart

R

ate

G

rip and Keypad

R

eplacement…………………………………………………………………34

All manuals and user guides at all-guides.com

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Summary of Contents for AFG 7.2AT

Page 1: ...e date 20 vision ate S zer on Ind 016 10 31 AF Serv ustrie Edition Edition ti FG 7 ice M Review es Sh n 01 me 01 7 2A Man w hangh Doc No Page AT nual hai C o Editor Alex Tang Co Lt 1 34 g td All manuals and user guides at all guides com a l l g u i d e s c o m ...

Page 2: ...Prod duct Br rowse 2 2 All manuals and user guides at all guides com ...

Page 3: ... Troubleshooting No Function For Safety Key 17 3 3 3 Troubleshooting No Response for Machine Console Motor 18 3 3 4 Troubleshooting Incline Motor Issues 19 3 3 5 Troubleshooting Noise Issues 20 3 3 6 Troubleshooting Speaker Audio Issues 21 3 3 7 Troubleshooting Heart Rate Function Issues 22 3 3 8 Troubleshooting Bluetooth Pairing Issues 23 CHAPTER 4 PART REPLACEMENT GUIDE 4 1 Motor Replacement 24 ...

Page 4: ... Board MCB Replacement 30 4 8 Incline Motor Replacement 31 4 9 Console Replacement 32 4 10 Console Circuit Board Replacement 33 4 11 Heart Rate Grip and Keypad Replacement 34 All manuals and user guides at all guides com ...

Page 5: ...1 1 Serial SERIAL N l Number NUMBER CHAP Location PTER 1 S Serial Number Locatio on 5 5 All manuals and user guides at all guides com ...

Page 6: ...tart your w workout Hold st incline in s t speed in sm each desired each desired nd off h speakers w MP3 player i CK plug your nes are plugg power lds personal tablet or rea R 2 Con astic on the o ories Hour H e Pace Hea at workout is press to sel workout or r d for 3 secon small increm mall incremen d incline more speed more when your C into the cons r headphone ged into the h workout equ ading m...

Page 7: ...o ts per minute it takes to co at your curre umber of calo simulated tra mile laps on off Note 2 Consol me remaining traveled dur ur walking or ne of your wa orkout e Used to m omplete a mi ent speed an ories you will rack Segmen have been c e the first time le Instructio g or the time ring your wor running surf alking or runn monitor your le while runn nd incline l burn in an h nts light up w com...

Page 8: ... MCB JP1 MCB To DIAGRAM B TO Cosole o Inline Pin lo CHAPTER Pin layout ocation R 3 Trou F bleshootin Fig 2 The JP Fig 4 T g P6 Speed se The Voltage ensor to MCB range instr 8 B pin layout ruction 8 t All manuals and user guides at all guides com ...

Page 9: ...CONSOLE E ELECTRIC CAL DIAGR CHAPTER RAM R 3 Troubleshooting 9 9 All manuals and user guides at all guides com ...

Page 10: ...CUIT B B LED Confi Power Lin Incline mo Speed se Console s Software Drive mot BOARD IN gure ne otor power ca nsor cable set cable burning cabl tor cable CHAPTER NSTRUCTIO able e R3 Troub ONS bleshooting g 10 0 All manuals and user guides at all guides com ...

Page 11: ... Dri ght off MC ght off MP MC ght off Inc ght off Inc unction iver Motor ac CB Power ind PU Power In CU status se cline move u cline move d ctive dicator dicator ee Table2 p indicator own indicato Sym Not Not MP See Rel or Rel mptom t voltage to d t voltage out PU inactive e Table2 lay not active lay not active 11 drive motor tput i e MCB fail e MCB fail All manuals and user guides at all guides c...

Page 12: ...3 2 2 Engineering Mo ode CHAPTER R3 Troub bleshooting g 12 2 All manuals and user guides at all guides com ...

Page 13: ...13 3 All manuals and user guides at all guides com ...

Page 14: ... To To To To board Instru LCD display om heart rate om Quick key om Quick key MCB Audio In O Speaker FAN Keypad Blu CHAPTER uctions e grip y Left hand b y right hand b ut interface etooth Res R3 Troub Fig 1 bar bar sistance bleshooting g 14 4 All manuals and user guides at all guides com ...

Page 15: ...e speakers but headphones works 2 No sound through headphones but the speakers work 3 No sound through speakers or headphones 4 IPod not charging 5 Speakers buzzing 6 Sound from one speaker only 7 Shock from headphones 1 The chest strap being used is not making good contact with the user s chest 2 The chest strap is at a low battery status 3 The chest strap is damaged 4 The HR grips are damaged 5 ...

Page 16: ...th ter to measu ltage 110V dard replace check the c CN4 from MC D pin Pin 8 the MCB check the co tions are all g R 3 Trou WER TO TH Fig 1 try another fu onsole doesn ig 1 red power LE he connectio re CN1 AC1 120V e the MCB as connection of CB see Pag 8 and the onsole cable good replac bleshootin HE CONSO unctional out n t turn on try ED on the Po on of the pow 1 AC2 se s it shall be d f the consol...

Page 17: ...e console If not remove and insert again b Check if the safety key is oxidized or its condition does not affect its function If yes try cleaning it or replace it c If the safety key is functional check the safety key sensor wires in console Suggest to re connect the wires or to change new wires All manuals and user guides at all guides com ...

Page 18: ...r cover Remove the red black wires of motor from the MCB and use a multi meter to measure the resistance of drive motor If the resistance is bigger than 10 Ω the drive motor is defective Replace the drive motor If the resistance is lower than 10 Ω the drive motor is ok Then Check the connection of the speed sensor encoder disk group at the MCB Remove the speed sensor from the motor and clean it th...

Page 19: ...Hardware Test Press the ENTER key first and then the START key c Press the INCLINE key If can hear clicks from two relays at the MCB the MCB is ok Then check the connection of the elevation motor at the MCB first try to unplug and re plug If this does not resolve the issue replace the elevation motor If there are no clicks from these two relays MCB is defective and replace the MCB All manuals and ...

Page 20: ...3 Rubbing grinding noise Sol This sound is likely caused by the optic disk Check that the optic disk is tight on the motor and not rubbing the speed sensor 4 Banging or clunking sound 5 Slapping thunking squeaking sound with each footstep Sol The sound is likely due to the unit not being level Check that all levelers are touching the ground Move the treadmill to another flat surface This sound is ...

Page 21: ... the console Replace the headphone jack Replace the audio adaptor cable c There is a bad connection between one of the audio boards and the console Verify the connection of the music player to the dock or audio adaptor cable Verify the audio adaptor cable connection at the console Replace the audio adaptor cable Replace the console d Speakers are not getting a clear signal through the speaker wire...

Page 22: ...R grip d Replace new HR grip if console can display proper HR rate With a multi meter set for DC voltage place one terminal on each of the HR grip plates The HR Grip should give a voltage reading of between 0 5 and 2 0VDC If the voltage is not between 0 5 And 2 0VDC remove the screws holding the HR grip together and check the connection of the HR grip wiring e Check a d If still cannot work sugges...

Page 23: ... in e he device na uetooth may 3 no availabl CHAPTER etooth pai ue light on e Replace c external mob ame is your m y damage Re le on phone R 3 Trou iring Issue Fig 1 console circu bile device O mobile scree eplace conso smart device bleshootin es it board P14 Only for audio n 7 2Ai SPE ole circuit bo Fig 3 e Only apply ng 4 Fig 1 o play EAKERS XX ard P14 Fig y to tablet like XXX g 1 e IPad 23 3 Al...

Page 24: ...r bolts and lt motor towa and motor p uds Fix mo o complete eds HAPTER 4 T he motor cov me So you w 1 otor cover re w motor cove ect after repla LCB speed t off as movi remove mot ards front rol ulley With ounting bolts Replace an 4 Part Re ver to the fram will have to p emoved Fig er acing motor d sensor cut ng running b tor ller with moto force draw s ny wire ties r eplacemen me Fig 1 ull up wit...

Page 25: ...i up evenly fro ning are when eet using an NG THE RUN HAPTER 4 CEMENT ear end caps both by altern r belt tension n damage o om the left to n the running abrupt stom NNING BELT 4 Part Re remove rea nating sides Fig 2 after replaci r injury o right tensio g belt just sto mp at a walkin T reference s eplacemen ar end caps approximate ing the belt oning bolts us ops slipping a ng speed section 4 6 n n...

Page 26: ... tre Fig 1 back of the tre o install a new de rail make not to over t HAPTER 4 NT See section eadmill Fig eadmill w side rail e sure the rea tighten the sc 4 Part Re n 4 2 2 ar end cap is crews or the eplacemen s on first befo ey will poke t nt Guide Fig ore tightening through the t g 2 g the screws top of the sid 26 s for proper de rail 6 All manuals and user guides at all guides com a l l g u i ...

Page 27: ...outlined in ail as outlined g deck 8 bolt g deck from to install a ne s silicon on o NG THE RUN HAPTER 4 CEMENT lined in Sect n section 4 2 d in Section 4 ts and groun the frame F ew running d one side New NNING BELT 4 Part Re tion 4 1 2 4 3 nd strap Fig 1 deck w deck surfa T reference s eplacemen Fig 1 aces must AL section 4 6 n nt Guide LWAYS be m ote 2 matched to a 27 new running 7 g All manual...

Page 28: ...f roller and mo 1 5mm with equipme g 4 HAPTER 4 CEMENT ned in Sectio rews to remo front roller an otor drive be ent Fig 4 4 Part Re on 4 1 ove tension f nd remove th elt and check Specification Belt tension eplacemen from the runn Fig 2 he roller from k belt alignm n 275 3 nt Guide ning belt Fig 2 m the running ent with alig 30Hz g 1 g belt Fig 2 nment Jig F 28 Fig 3 Fig 3 8 All manuals and user g...

Page 29: ...aceme ne side New T osition it will adjusted afte rates If the t on the rear e bolts adjust istance on e olts counter rom side to s full turn Insp g at 3 mph o turns and lo lockwise 1 4 es The belt sh curs tighten Part Rep on 4 1 4 2 on 4 4 4 5 Fig 1 Fig 1 Fig 2 ent Note2 w deck surfa be used the er the first 2 h belt starts to of the treadm t the rear roll either side be clockwise ap side Tighten...

Page 30: ...re CHA ROL BOAR isconnect the over as outlin connectors a s holding eac o install a new emoved APTER 4 RD MCB e cord from t ned in Sectio at the MCB ch side of the Fig 1 w MCB Make Part Rep REPLAC the machine on 4 1 Fig 1 e MCB to the e sure that a placement EMENT e frame all wires remo Guide oved during S Step 3 are re 30 e connected 0 All manuals and user guides at all guides com ...

Page 31: ...port it so from the elev Fig 1 e motor from o install a new vation a new incline ts of the incli HAPTER 4 ACEMENT d disconnect ned in Sectio o that the fron vation rack F 2 m the top mou w incline mot e motor mak ne motor 4 Part Re T t the power c on 4 1 nt wheels are Fig 1 2 unting bracke tor ke sure to re eplacemen cord e off the floor et Fig 3 place the wh nt Guide r hite nylon wa Fig 3 ashers ...

Page 32: ...readmill a s holding the s holding the e from the co ole and fasten Fig 1 Fig 3 change the c HAPTER 4 NT and disconne console form console from onsole frame n frame scre console intern 4 Part Re ect the power m heart rate m the consol e Fig 3 ews Fig 4 nal circuit bo eplacemen r cord bars section e mast Fig oard only se nt Guide n 4 10 1 Fig 2 Fig 2 Fig 4 ection 4 9 1 32 2 All manuals and user gui...

Page 33: ... 9 the new circ step 2 y damage the ar ESD wrist CHAPT RCUIT BO ontact ESD w uit board e circuit boa strap TER 4 Pa OARD REP wrist strap rd cause ES art Replace PLACEMEN D during cha ement Gui NT ange process de F s Prohibit ch igi 1 hange the cir 33 rcuit board 3 All manuals and user guides at all guides com ...

Page 34: ... step 1 4 n power chec CHA and Keypa s bolts and co grip bars Fig heat rate bar heart rate co d overlay or c the keypad PTER 4 ad replace onnection wi g 2 r and open th onnection wi heart rate pl and heart ra Part Repl ement ire Fig 1 he housing ilre Fig 4 ated Fig 5 ate function acement G Fig 3 Fig 4 Guide Fig 2 34 Fig 5 4 All manuals and user guides at all guides com ...

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