Johnson AFG Pro 7.2AT Service Manual
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Johnson AFG Pro 7.2AT Service Manual

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Issue
JOHNSO
ON
Rev
da
Jo
ohnso
on Ind
A
Approval
Kyl
le Schweitz
e date 20
016-10-31
vision
ate
ustrie
AF
Serv
S
zer
Edition
n
01
Edition ti
me
01
es (Sh
hangh
FG 7
7.2A
ice M
Man
Review
w
Doc No
o.
Page
hai) C
Co., Lt
AT
nual
Editor
Alex Tang
34
td
g
1

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Do you have a question about the AFG Pro 7.2AT and is the answer not in the manual?

Questions and answers

Michelle Anthony
February 6, 2025

The display keeps cycling rapidly between users and won’t stop. It will not allow you to pick a speed or use the machine.

0

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Summary of Contents for Johnson AFG Pro 7.2AT

  • Page 1 Issue e date 20 016-10-31 Edition Doc No JOHNSO vision Edition ti Page ohnso on Ind ustrie es (Sh hangh hai) C Co., Lt FG 7 7.2A Serv ice M nual Approval Review Editor le Schweitz Alex Tang...
  • Page 2 Prod duct Br r owse...

  • Page 3: Table Of Contents

    Contents CHAPTER 1: SERIAL NUMBER LOCATION ....................5 CHAPTER 2: CONSOLE INSTRUCTIONS 2.1 Console Description ..........................6 CHAPTER 3: TROUBLESHOOTING 3.1 Electrical Diagram ..........................8 3.2 MCB Circuit board Instructions ......................10 3.2.1 MCB LED Indicator Figurer Instructions ……………………………………………………………………11 3.2.2 MCB Engineering Mode……………………………………………………………………………….……..12 3.3.3 Console Circuit Board Instructions………………………………………………………………………..…14 3.3 Troubleshooting Summary ………………………………………………………………………..……………15 3.3.1 Troubleshooting - No Power to the Console...
  • Page 4 4.7 Motor Control 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...

  • Page 5: Chapter 1: Serial Number Location

    CHAP PTER 1: S S erial Number Locatio o n 1.1 Serial l Number Location SERIAL N NUMBER...

  • Page 6: Chapter 2: Console Instructions

    CHAPTER R 2: Con sole Instru uction 2.1 Console e Instruction: Note: There e is a thin pro otective shee et of clear pla astic on the o overlay of the e console tha at should be removed before use. A) LCD DIS SPLAY WIND DOWS: Watts...
  • Page 7 HAPTER 2 2: Consol le Instructio TIME: Show wn as minute es : seconds. . View the tim me remaining g or the time elapsed in y your workout DISTANCE: : Shown as m miles. Indicat tes distance traveled dur ring your wor rkout.

  • Page 8: Electrical Diagram

    CHAPTER R 3: Trou bleshootin 3.1 ELEC CTRICAL D DIAGRAM Fig-1 : The CN4 MCB B TO Cosole Pin layout Fig-2 The JP P6 Speed se ensor to MCB B pin layout Fig-3 The J JP1 MCB To o Inline Pin lo ocation Fig-4 T The Voltage...
  • Page 9 CHAPTER R 3: Troubleshooting CONSOLE E ELECTRIC CAL DIAGR...

  • Page 10: Mcb Circuit Board Instructions

    CHAPTER R3: Troub bleshooting g 3.2 MCB C CIRCUIT B BOARD IN NSTRUCTIO Fig-1 Power Lin Incline mo otor power ca able Speed se nsor cable Console s set cable Software burning cabl Drive mot tor cable 3.2.1 MCB B LED Confi gure 10 0...

  • Page 11: Mcb Led Indicator Figurer Instructions

    MCB LED D Configure Table1 LED No Color Active active unction mptom ght off t voltage to d drive motor LED1 ght on iver Motor ac ctive LED2 Green ght on ght off CB Power ind dicator t voltage out tput i LED3 Green...

  • Page 12: Mcb Engineering Mode

    CHAPTER R 3: Troub b leshooting g 3.2.2. Eng ineering Mo ode 12 2...
  • Page 13 13 3...

  • Page 14: Console Circuit Board Instructions

    CHAPTER R3: Troub bleshooting g 3.2.3 Cons sole circuit b board Instru uctions LCD display om heart rate e grip om Quick key y Left hand b om Quick key y right hand b Audio In& O ut interface Speaker JP10 Keypad (Blu etooth &...

  • Page 15: Troubleshooting Summary

    3.3 Troubleshoot summary Code description SYMPTOM: Solution Turn on the power switch, but the console will NO POWER TO THE CONSOLE See section 3.3.1 not light up. The safety key inserted in console, but display NO FUNCTION FOR SAFETY KEY See section 3.3.2 window still shows “safety key off”.

  • Page 16: Troubleshooting - No Power To The Console

    CHAPTER R 3: Trou bleshootin 3.3.1 TRO OUBLESH OOTING – – NO POW WER TO TH HE CONSO SOLUTION ck circuit bre eaker, reset i f necessary. .(Fig-1) b. Che ck if the outle et is well. - If f no, please t try another fu unctional out tlet.

  • Page 17: Chapter 3: Troubleshooting

    CHAPTER 3: Troubleshooting 3.3.2 TROUBLESHOOTING – NO FUNCTION FOR SAFETY KEY SOLUTION: a. Check if the safety key is totally inserted into the 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.

  • Page 18: Troubleshooting - No Response For Machine (Console&Motor)

    CHAPTER 3: Troubleshooting 3.3.3 TROUBLESHOOTING – NO RESPONSE FOR MACHINE (CONSOLE&MOTOR) SOLUTION: a. Check if the console beeps when all keys are pressed. If no, replace the keypads. b. Enter Engineering Mode, and scroll to ENG 1 (Hardware Test).Press the key “ENTER” first and then the key ”START”.

  • Page 19: Troubleshooting - Incline Motor Issues

    CHAPTER 3: Troubleshooting 3.3.4 TROUBLESHOOTING - INCLINE MOTOR ISSUES SOLUTION: a. Press the "INCLINE" keys, the console should beep and display incline change, if no, replace the key pad b. Enter Engineering Mode, and scroll to ENG 1 (Hardware Test). Press the “ENTER” key first and then the “START”...

  • Page 20: Troubleshooting - Noise Issues

    CHAPTER 3: Troubleshooting 3.3.5 TROUBLESHOOTING - NOISE ISSUES SOLUTION: 1. Thumping noise twice per rotation on new machine This noise is from the roller or running belt. - If this is a new unit, some noise is normal as the running belt forms around the rollers. - Check that the belt is centered and tensioned correctly.

  • Page 21: Troubleshooting - Speaker / Audio Issues

    CHAPTER 3: Troubleshooting 3.3.6 TROUBLESHOOTING - SPEAKER / AUDIO ISSUES SOLUTION: a. One of the speaker boards has a bad connection or is faulty. - Check the connection of the wires going from the speakers to the speaker power board. - Check the connection of the wires going from the speaker power board to the amp board.

  • Page 22: Troubleshooting - Heart Rate Function Issues

    CHAPTER 3: Troubleshooting 3.3.7 TROUBLESHOOTING- HEART RATE FUNCTION ISSUE SOLUTION: a. Re-center the chest strap below the user's pectoral muscle and check again. b . Replace the battery in the chest strap. Wet the user's hand, and then reestablish contact with the HR grip. Replace new HR grip if console can display proper HR rate.

  • Page 23: Troubleshooting - Bluetooth Pairing Issues

    CHAPTER R 3: Trou bleshootin 3.3.8 Trou ubleshoot ting – Blue etooth pai iring Issue SOLUTION 1. Press B Bluetooth but tton see if blu ue light on –( (Fig-1) If not th e Bluetooth may damage e. Replace c console circu it board.(P14 4 Fig-1)
  • Page 24 HAPTER 4 4: Part Re eplacemen nt Guide 4.1 MOTO OR REPLA ACEMENT Discon nnect power cord. 2) Remov e the 2 screw ws holding th he motor cov ver to the fram me (Fig-1) 3) The cov ver is secure ed to the fram me.
  • Page 25 HAPTER 4 4: Part Re eplacemen nt Guide 4.2 REAR R ROLLER R REPLAC CEMENT 1) Remove the 4 screws s from the re ear end caps, , remove rea ar end caps.( Fig-1) 2) Remove both roller a djustments b both by altern nating sides, , approximate...
  • Page 26 HAPTER 4 4: Part Re eplacemen nt Guide 4.3 SIDE RAIL REP PLACEME 1) Remove the rear end d cap (Fig-1). . See section n 4.2 2) Slide the rail off the b back of the tre eadmill (Fig- -2). Fig-1 3) Slide the rail off the b...
  • Page 27 HAPTER 4 4: Part Re eplacemen nt Guide 4.4 RUNN NING DEC K REPLAC CEMENT 1) Remove e the motor c cover as outl lined in Sect tion 4.1. 2) Remove e rear roller a as outlined in n section 4.2 3) Remov e the side ra ail as outlined...
  • Page 28 HAPTER 4 4: Part Re eplacemen nt Guide 4.5 FRON NT ROLLE ER REPLA CEMENT 1) Remove the motor co over as outlin ned in Sectio on 4.1. 2) Remove both of the r rear roller scr rews to remo ove tension f from the runn ning belt.(Fig...
  • Page 29 APTER 4: Part Rep placement Guide 4.6 RUNN NING BELT T REPLAC CEMENT 1) Remove the motor co over as outlin ned in Sectio on 4.1. 2) Remove the rear rolle er as outlined d in Section 4 4.2. 3) Remove the running deck as outl ined in Secti...
  • Page 30 APTER 4: Part Rep placement Guide 4.7 MOTO OR CONTR ROL BOAR RD (MCB) ) REPLAC EMENT 1) Turn off p power and d isconnect the e cord from t the machine 2) Remove the motor co over as outlin ned in Sectio on 4.1.
  • Page 31 HAPTER 4 4: Part Re eplacemen nt Guide 4.8. INCL LINE MOTO OR REPLA ACEMENT 1) Turn off p power to the treadmill an d disconnect t the power c cord. 2) Remove the motor co over as outlin ned in Sectio on 4.1 3) Lift the tr eadmill and...
  • Page 32 HAPTER 4 4: Part Re eplacemen nt Guide 4.9 CONS SOLE REP PLACEME 1) Turn off f power to th e treadmill a and disconne ect the power r cord. 2) Remove e the screws s holding the console form m heart rate bars (section n 4.10)

  • Page 33: Chapter 4: Part Replacement Guide

    CHAPT TER 4: Pa art Replace ement Gui 4.9.1 CON NSOLE CI RCUIT BO OARD REP PLACEMEN 1. Confrim w wear good co ontact ESD w wrist strap. 2. See secti ion 4.9 3. Replace t the new circ uit board 4.
  • Page 34 PTER 4: Part Repl acement G Guide 4.10 Hear rt rate grip and Keypa ad replace ement 1) Remove e all of 8 pcs s bolts and co onnection wi ire (Fig-1) 2) Remove e herat rate g grip bars (Fig g-2) Fig-1 Fig-2...

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