REPAIRING AND NOT THROWING AWAY

REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

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Tuesday 12 March 2019

HORIZON FITNESS TREADMILL FAULT DIAGNOSIS

HORIZON FITNESS TREADMILL FAULT DIAGNOSIS


 FAULT DIAGNOSIS

HORIZON FITNESS TREADMILL

Diagnosis Process


The following steps are provided as routine checkpoints when diagnosing problems on a Horizon Fitness treadmill. If followed correctly, these checkpoints should help diagnos the majority of problems that may be encountered.
1. Proper supplying power to treadmill.
# Make sure the treadmill is not on an extension cord or surge protector. Extension cords and surge protectors create energy loss, which prevents proper voltage from being supplied to the treadmill.
# Make sure the treadmill is on a dedicated circuit. Horizon Fitness recommends a 0 amp dedicated circuit, but a 15 amp dedicated circuit may be sufficient.
#Make sure that proper voltage is being supplied from the wall outlet.
Hazardous voltages will be tested in the following procedure. Exercise extreme caution when performing these procedures. Do not connect or disconnect any wiring, connectors, or other components with the power applied to the treadmill.
#Disconnect the treadmill power cord from the wall outlet. Using an AC voltmeter, verify that the proper AC voltage is present at the wall outlet. Nominal 10 volts AC may vary between approximately 105 volts AC and 135 volts AC. If the AC voltage is missing or incorrect, check the AC service or consult an electrician.

2. Proper Wiring
# Verify that all wires are secure and attached in the correct position. 
# Verify that there aren’t any pinches or cuts in any of the wires, especially the console cable connecting from the motor control board to the upper board. Replace any wires that are pinched or cut.
3. Proper Motor Function
# Verify that the treadmill is properly lubricated  and drive motor is operating at the proper amperage rating. To verify the current draw, place a clamp meter around the red motor wire. If a clamp meter is not available, an additional wire harness can be produced to measure amperage with a standard voltmeter.
# Remove the brush covers on the drive motor and inspect the brushes and the motor commutator for any uneven wear. If the surface of the motor brush is pitted, rough, has burn marks, or the commutator has a black residue on it, replace the motor brush and stone the motor commutator.
4. Proper Speed Calibration
# To ensure proper belt speed and proper calibration use engineering mode to verify that machine is running in MPH not KM (all models) and that the correct roller diameter is set
# Auto-calibrate the machine from engineering mode if the belt speed is erratic or the belt speed does not correspond to what is displayed on the console.
5. Voltage Checkpoints/Diagnostic LED’s
# Verify that the motor control board is functioning properly by referencing the Diagnostic LED’s located on the lower control board.
# Verify that proper voltage is being transferred through the console cable.
If the techniques described in the five-step diagnostic process did not resolve the problem, reference the symptoms in the table of contents and review other possible causes in the troubleshooting section.
Console Cable Voltage Chart (DC Volts)
Console Cable Voltage Check

To check the voltage of a specific function (i.e. elevation, motor control, etc), place the negative lead of your multi-meter on pin B3, B4 or B5, and place the positive lead on the desired pin. Follow the voltage chart above for the correct voltages.
Wire colors are subject to change.
Motor/AC Wire Voltage Check
Spin motor flywheel to produce voltage
AC Wire Voltage Check
Lower Board LED Diagnosis
LED 1: Transfer indicators - When the power switch is turned on, LED 1 lights up, meaning that power is supplied to the lower board. This LED should remain on while operating the drive motor and elevation motor. If the LED’s are not lit, check the AC service from the wall outlet.
LED 2 & 3: Motor indicator - The LED 3 will come on if the motor starts to run. The motor control board will begin detecting the status of the motor and if everything is OK then LED  will turn on in 1 or  seconds.
LED 4 & 5: Incline Motor Indicator - When the upper board is commanding the incline motor to move UP or DOWN, the LED’s go on. LED 4 is for the UP function, and LED 5 is for the DOWN function.
LED 1: DC Voltage Indicator - When the power switch is turned on, LED 1 dimly lights up. If the belt begins to run LED1 will remain. Power is stored in the board, do not touch.
LED 2 & 3: Motor indicator - The LED 3 will come on if the motor starts to run. The motor control board will begin detecting the status of the motor and if everything is OK then LED  will turn on in 1 or  seconds.
LED 4 & 5: Incline Motor Indicator - When the upper board is commanding the incline motor to move UP or DOWN, the LED’s go on. LED 4 is for the UP function, and LED 5 is for the DOWN function.
Posted By: FRANK at 02:24
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