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PCB REPLACEMENT 

(T9250/93500/9450HRT)

 

Tools required: 

 

  Philips screwdriver 

  T-handle key (5mm) 

 
 

Procedure: 

 

1. Use the T-handle key to loose the 

screws of the handle bar.    Then 
remove the handle bar. 

 
2. Loose the screws of the console upper 

cover.    Then Knock the console upper 
cover carefully and remove it. 

 
3. Unplug the cables connecting to the 

PCB. 

 

4. With the screwdriver remove the PCB. 
 
5. Replace the PCB with a new one.   
 
6. Reverse step 1-4 to install all parts. 

 

 

 

 

 

 

 

                                                                                            7-2                             

 

 

 

Summary of Contents for T9200

Page 1: ......

Page 2: ...BLESHOOTING NO DISPLAY ON CONSOLE RUNNING SPEED IS NOT STABLE TREADMILL STARTS TO RUN BY ITSELF ALL OR SOME OF KEYS ON CONSOLE DO NOT WORK NOISE GENERATED UNDER MOTOR COVER TREADMILL WILL NOT START INCLINE FUNCTION DOES NOT WORK ERROR MESSAGE E1 E2 E3 E4 E5 E6 or E9 ON CONSOLE SPEED OR INCLINE CHANGES BY ITSELF HEART RATE CONTROL FUNCTION DOES NOT WORK SECTION 6 PARTS REPLACEMENT MCB T9250 9350 94...

Page 3: ...TABLE OF CONTENTS AIR SHOCK T9250 9350 9450HRT SECTION 8 SERVICE FORM MCB LED STATUS REPORT FIELD FAILURE REPORT PARTS ORDER FORM WARRANTY CLAIM FORM ...

Page 4: ...SECTION 1 MAINTENANCE PROCEDURE ...

Page 5: ...n Vacuum Inspect 3 Carbon Brush Inspect Replace Power Cord Inspect Display Console Clean Inspect Handlebar Clean Inspect Handrail Handlebar Inspect Front Roller Clean Inspect Rear Roller Inspect Emergency Button Test Tension Wheel Inspect V Belt Clean Inspect Deck Re waxing Inspect Re waxing Running Belt Inspect Control Box Clean Vacuum Motor Clean Air Shock Lubricate 1 1 ...

Page 6: ...ping tension both the rear rollers Allen bolts 1 4 TURN as shown above Try the treadmill again to check for slipping Repeat if necessary but NEVER TURN the roller bolts more than 1 4 turn at a time Drive Belt If you have tensioned the running belt and are still experiencing a slipping adjust the tension screw Then try the treadmill again to check for slipping 1 2 P Pe er rf fe ec ct t T Te en ns s...

Page 7: ...ck with your right hand The volume of silicon applied is about 25CC 3 Tighten the tension bolts 4 Start the treadmill Step on the treadmill belt to walk the silicon in Adjust the belt tension if necessary 5 With the clamp on meter measure the current draw of the motor Clamp on either the red or the black wire The current should be less than 15Amps for 110V model less than 7 5Amps for 220V model 1 ...

Page 8: ...and check the grooves in belt for dirt or dust and clean it 2 Check the grooves in motor pulley for dirt or dust and clean it 3Check the grooves in roller pulley for dirt or dust and clean it 1 4 If dirty grooves in the drive belt motor and roller pulley there will be noises while running ...

Page 9: ...uency Every 6 months Procedure 1 Fold up the frame by using the deck locking lever 2 Add the lubricating oil on the shaft of the air shock 3 Lift the frame up and down repeating this several times to allow the lubricating oil blend into air shock 1 5 ...

Page 10: ...SECTION 2 WIRING DIAGRAM INSTRUCTION ...

Page 11: ...WIRING DIAGRAM MCB 110V T9250 T1 Motor wire black T2 Motor wire red T3 D1 of on off switch T4 D3 of on off switch T5 8 pin console cable T6 Elevation cable T7 6 pin console cable 2 1 ...

Page 12: ...0V T9350 T9450HRT T1 Motor wire black T2 Motor wire red T3 CE N3 of Capacitor Non CE D1 of on off switch T4 CE N4 of Capacitor Non CE D3 of on off switch T5 8 pin console cable T6 Elevation cable T7 6 pin console cable 2 2 ...

Page 13: ...SECTION 3 CONSOLE ENGINEERING MODE GUIDE ...

Page 14: ...Speed 6 Press START Press SELECT SCAN to display Max speed Press Elevation UP DOWN or Speed FAST SLOW to increase decrease speed to 10m 16 km Press START to store Then Press Exit 7 Press Elevation UP or Speed UP Key until it displays P5 Maximum incline 8 Press Start and let it rise to Max incline automatically Press START to store 9 Press Elevation DOWN or Speed DOWN Key until it displays P4 Minim...

Page 15: ... P0 Press Start 6 Use a tachmeter as a speed measure equipment and press Fast Slow key until you can measure minimum speed value 0 5M 1 0KM by a tachmeter Then press SELECT SCAN to save data 7 Press Elevation UP through P1 8 Press Start Use a tachmeter as a speed measure equipment and press Fast Slow key until you can measure maximum speed value 10M 16Km or 19K by a tachmeter Then press SELECT SCA...

Page 16: ...e Press ENTER SELCET will store displayed value Press Elevation UP DOWN will increase decrease address Px Press Speed UP DOWN will increase decrease displayed value Table B Address Description Default Value Min Value Max Value P0 Minimum Speed P1 Maximum Speed P4 Minimum Incline P5 Maximum Incline P6 See Table A P7 Maximum program Time 99 15 99 P8 Weight 150 30 400 P9 Accumulated hours 0 0 6553 5 ...

Page 17: ...SECTION 4 MCB LED INSTRUCTIONS ...

Page 18: ...ulated 18 volt direct current supply necessary for the operation of the MCB circuitry If dim the supply voltage may be marginal and if out not present or inadequate If this light is not lit the MCB will not operate even if the PCB is operating properly If the AC light is lit and the 11V and 18V light are not check fuse F1 If the 11V light is lit and the 18V light is not lit return the board to JMI...

Page 19: ... examined for wear or damaged components which might have lead to the extended current limit condition If this problem persists return the board to JMI Light When lit indicates the current to the motor has reached the peak current trip point of 26 Amps The MCB will limit the current when the current limit point has been reached If the current limit continues for roughly 5 seconds the MCB shuts dow...

Page 20: ... but the incline is not moving check and verify incline motor and its connection to the board check fuse F2 If this problem persists replace MCB Light Indicates the PCB is commanding the incline motor to move down If the User is commanding the incline to decrease and this light is not lit check cabling verify proper PCB operation and replace it if either is defective If the problem persists replac...

Page 21: ... OFF OFF OFF 4 ON OFF ON OFF OFF OFF OFF OFF 5 ON ON ON OFF OFF OFF OR BLINKING N A N A 6 ON ON ON DIM OFF ON BLINKING N A N A 7 ON ON ON ON ON BLINKING N A N A 8 ON ON ON ON OFF COMES ON BRIEFLY THEN SHUTS OFF N A N A 9 ON ON ON ON OFF N A ON OFF 10 ON ON ON ON OFF N A ON OFF 11 ON ON ON ON OFF N A OFF ON 12 ON ON ON ON OFF N A OFF ON 4 4 ...

Page 22: ... ohm meter set to VCD to the motor leads and spinning the tread and observing a voltage If no voltage Bad motor 6 Will not operate the motor A 5 second current limit time out has occurred Resets console or cycle power to correct Check treadmill for excessive wear or mechanical defects If problem persists return MCB 7 MCB in current limit mode The MCB is experiencing a discontinuous over current ev...

Page 23: ...SECTION 6 TROUBLESHOOTINGS ...

Page 24: ...Inspect the circuit breaker to see if it has tripped off If it is tripped off like diagram B reset the breaker And check which part is short circuited Then replace the short circuited part 2 The switch is turned to the ON position If the switch light isn t lit replace the switch Verify wire connection AC1 AC2 on the MCB refer to wiring diagram page 4 3 Verify the ON OFF switch breaker socket wires...

Page 25: ... using voltage meter to see if it is within 120V 15 or 230V 15 If the power voltage isn t within the range look for a qualified electrician for help 2 Open the motor cover if the belt has stretched and is slipping across the rollers when running Adjust the belt tension 3 Remove the motor cover and run the machine at low speed then adjust the IR COMP of MCB If it hasn t been improved replace new MC...

Page 26: ... Replace the console cable with a new one 2 Replace the PCB 3 Replace the MCB All or some of the keys on console do not work Possible causes 1 Keypad connecting plug is not fit in properly 2 Keypad is damaged 3 PCB is damaged Fix 1 Disconnect the keypad and replace the keypad and check again 2 Replace the keypad 3 Replace the PCB ...

Page 27: ...Let the treadmill run without using it for at least 5 days because sometimes the bearing will settle and become quiet then check if the noise has disappeared 2 Replace the front roller with a new one to see if the noise disappear 3 Remove drive belt and check the grooves in belt for dirt or dust and clean if necessary Clean also the motor pulley and the roller pulley grooves and check if the noise...

Page 28: ... connection MTR1 and MTR2 on the MCB then plug in the power cord and turn on the power switch Then press START button 1 Verify the LED indicator of MTR is lit If that LED MTR is not lit replace MCB 2 Verify if LED PWM is lit if it is not lit replace 8 pin console cable 3 If LED PWM is still not lit replace PCB 4 Replace Motor 7 5 Revision 1 0 Date 2000 04 01 ...

Page 29: ...ing Mode to recalibrate the elevation values Then press FAST and SLOW key to see if the incline motor will be activated 1 OR Use a new 8 pin console cable to connect PCB and MCB Then press FAST and SLOW key to see if the incline motor will be activated 2 OR Replace the incline motor 3 OR Replace PCB 4 OR Replace MCB 5 Enter Engineering Mode to reset the elevation parameter 7 6 Revision 1 0 Date 20...

Page 30: ...rror individual checksum Elevation range is too short or Elevation range is too short For T9250 E3 speed position is outside the range E4 Elevation range is too short E5 incline stall condition E6 signal of elevation is lost E9 No speed respond during speed calibration 7 7 Revision 1 0 Date 2000 04 01 ...

Page 31: ... Replace PCB For T9250 1 Re calibrate the parameters P4 and P5 2 If the elevation is stuck at either end release the pipe before the calibration Error Message E3 on the Console Possible cause 1 Speed is out of range 2 PCB is damaged Fix 1 Enter the engineering mode to re calibrate the speed 2 Replace PCB 7 8 Revision 1 0 Date 2000 04 01 ...

Page 32: ...re calibrate the elevation 2 Replace PCB Error Message E5 on the Console Possible cause 1 Range of elevation is not proper 2 PCB is damaged Fix 1 Enter the P4 P5 of Engineering Mode1 to recalibrate the incline If the elevation is stuck at either end release the pipe before the calibration 2 Replace PCB 7 9 Revision 1 0 Date 2000 04 01 ...

Page 33: ...pin cable has not been connected well 3 damaged PCB 4 damaged MCB 5 damaged elevation motor Fix 1 Replace the 8 pin cable 2 Verify the connections of the 6 pin AMP plug of the elevation motor and the 8 pin console cable 3 Replace the PCB 4 Replace the MCB 5 Replace the elevation motor 7 10 Revision 1 0 Date 2000 04 01 ...

Page 34: ...e distance between speed sensor and magnet too far 2 Speed sensor is damaged 3 Lost magnet of front roller Fix 1 Adjust the distance within 3mm 2 Replace new speed sensor 3 Fixed magnet on right position of front roller 7 11 Revision 1 0 Date 2013 02 23 ...

Page 35: ...eypad is damaged 2 PCB is damaged Fix 1 Remove the keypad and verify it is stuck If it is replace with a new keypad 2 If speed or incline changes by itself replace the PCB with a new one and refer to Engineering Mode Guide to re program all the parameters ...

Page 36: ...5 PCB is damaged Fix 1 Center the transmitter on your chest below the pectoral muscle breast as shown then check again 2 Remove the battery cover of the transmitter Replace a new battery and check again Actually as moisture may activate the transmitter please dry transmitter after use 3 OR Transmitter is damaged Replace the Transmitter 4 OR Heart rate control board is damaged Replace the HR contro...

Page 37: ...SECTION 7 PARTS REPLACEMENT PROCEDURE ...

Page 38: ...remove the motor cover 2 Unplug all the cables and wires connecting to the MCB 3 With the screwdriver remove the MCB 4 Replace the MCB and tighten the screws holding the MCB to the frame 5 Reconnect all the cables and wires to the MCB by referring to the wiring diagram 6 Enter the engineering mode recalibrate the speed of the treadmill 7 Install the motor cover 7 1 ...

Page 39: ... loose the screws of the handle bar Then remove the handle bar 2 Loose the screws of the console upper cover Then Knock the console upper cover carefully and remove it 3 Unplug the cables connecting to the PCB 4 With the screwdriver remove the PCB 5 Replace the PCB with a new one 6 Reverse step 1 4 to install all parts 7 2 ...

Page 40: ...due on the console thoroughly 4 Replace the keypad and plug the new keypad with the PCB 5 Install the console upper cover and tighten the screws 6 Tear off about 2 cm wide of the protective paper on the backside of the overlay align the overlay to the top of the console press the overlay firmly on the portion with no paper on the backside then tear the remaining paper slowly Press the overlay down...

Page 41: ...g your left hand and pull the drive belt out from the pulley of the front roller by using your right hand 4 Remove the bolts of the front and rear rollers If replacing the roller go to step 13 5 Loosen the 8 bolts holding the deck to the frame then remove the deck with the running belt If replacing the running deck go to step 11 6 Remove the fix plate with screwdriver 7 Replace the deck and tighte...

Page 42: ...1 11 Remove the fix plate with screwdriver Replace the deck and tighten the fix plate then install a new running belt Go to step 14 11 Replace the deck and center the running belt 12 Tighten the deck screws and assemble the rear roller first then assemble the front roller Go to step 16 13 Replace the front roller and rear roller Go to step 15 14 Tighten the deck screws 15 Assemble the rear roller ...

Page 43: ...rollers Adjust the running belt tension screw to center the running belt at high speed 19 Try to step on the belt at low speed to check if the belt slips 20 Install the side rails and secure the end plates and all the covers 7 6 ...

Page 44: ...t too tight at this time So the motor can be adjusted in horizontal direction 6 Place the drive belt on the transmission pulley turn the flywheel clockwise by using your left hand and place the drive belt on to grooves of the front roller pulley Notice Not allow alignment exists on both pulleys or the poly belt will fall down when running 7 Adjust the belt tension adjusting screw until the tension...

Page 45: ... and a bolt on the pipe by using the wrenches 14 17 4 Replace the incline motor with a new one PS Let the incline motor in max incline status 5 Tighten a nut and a bolt on the incline motor at first Then lift the main frame in max incline status and tighten the pipe 6 Reconnect cables and the grounding wire to the connectors and the frame 7 Remove the support under the frame 8 Turn on the power an...

Page 46: ...onnect the console cable from the PCB and MCB 3 Remove screws of the right handle bar with the T handle key 5mm 4 Tie the old cable to the new one with a rigid string 5 Pull the old cable from the top end until the new cable pass all the way through the right console mast Then let it go to the console base 6 Connect the console cable to PCB and MCB 7 Install the console cover and handle bar middle...

Page 47: ...f carbon brush is smooth If the surface of carbon brush is pitted rough or with burn marks replace the carbon brush If replacing the carbon brush go to step 10 3 Prior to disassembling the end caps you must make a mark on the end cap 4 Use the nutdriver 10mm 11mm to remove bolts from the end caps 5 Tap the shaft carefully with a wooden hammer to remove the end caps 8 22 Revision 1 0 Date 2000 04 0...

Page 48: ...bearings to the shaft by using wooden hammer 8 Install the two end caps and use the nutdriver 10mm 11mm to lock the caps to the main enclosure 9 Install the carbon brush and the carbon brush cover The end of the procedure 10 Replace the carbon brush with a new one 11 Install the carbon brush and the carbon brush cover 12 Turn the power on let the treadmill run for about 1 hours at 3 0 kph 8 23 Rev...

Page 49: ...ling the locking Lever 2 Use wrench 13mm to loosen screws holding air shock to the frame and remove the air shock 3 Replace with a new air shock 4 Add some lubricating oil on the shaft of the air shock 5 Lift the frame up and down repeating this several times to allow the lubricating oil blend into air shock ...

Page 50: ...Revision 1 0 Date 1999 09 01 SECTION 8 SERVICE FORM ...

Page 51: ...LED Off ILT1 Light JET7000 ILT2 Light JET7000 LED On LED On LED Off LED Off When you press the UP or DOWN key the LED status is Up Light Dn Light LED On LED On LED Off LED Off These LEDs are only for JET 7000 MCB In order to fill out this Report properly please use the PWM MCB CHART and MCB LED aided troubleshooting which you can find in the Service Manual Please fill out this Report at the moment...

Page 52: ...re Intermittent Persistent Product Serial number Failure Symptom Pls refer to the service manual for the symptom of failure Cause of Failure Parts Replaced Suggestions to prevent Failure When parts needed please fill out a Parts Order Form as detailed as possible Date Place Prepared By Company Stamp ...

Page 53: ...Revision 1 0 Date 1999 09 01 Parts Order Distributor Order ...

Page 54: ...Revision 1 0 Date 1999 09 01 Delivery Terms CIP Delivery Address FCA FOB Warranty Yes No Product Serial number Product Drawing Part Number Part Name Qty ...

Page 55: ...rk Please refer to the spare part kit for all the information that are to be filled out above Date Place Signature Company Stamp Warranty Claim Form Claim no Dealer Name Page of Pages MODEL SERIAL NUMBER DESCRIPTION OF DEFECT PARTS QTY ...

Page 56: ...Revision 1 0 Date 1999 09 01 AUTHORIZED BY ...

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