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Omg is a lot of testing. Plus i don't have a tools like that. But good video. My machine turns on but the display is not working. Any ideas. I hope is not the motherboard. 1471 pfaff.

to power the board, what did you use? a bench power supply? how many volts, alternating or continuous? thanks

Hi how can I contact you I would like to know if you can repair a board for me ?

Hello. I have a B304-S10 motor controll board from a trojan treadmill. I have some electrical knowledge. The motor burnt tripping the house mains. I have replaced the motor. The board powers up with voltage to the motor but then times out when the belt does not move . I suspected that the part controlling the PWM (wave modulator) has blown. Where would you suggest I test for the problem. Craig ( South Africa)

Thnks lot welcom to learn islam

Hi Craig if you could assist I have a snappy chef sdc003 2 plate induction stove. I am a technician too. I have done a lot of troubling shooting even swopped the heating coils. The error is that the left plate don't function it shows error EE not e3 so what I did was even swop the entire boards to see if the one board was faulty. Both boards works. So now my last issue I can think of is the main touch control board. Please assist if you can

Good Day FoulkesBrau hope you can assist with an issue on similar D5 EVO Controller.The LCD Display is blank with no read out.Only the 4 green LED`s are visible. Kind regards MH

Checked rectifier good. Fuse good. Inspected good everything looks good. I just finished charging a Milwaukee M18 HD 9 one cellar at a time to 4.17 volts. Indicator light showed full charge. I disconnected leads to battery and unplugged I from 110. When to use again no display. I am going to check to see if it is putting out voltage. Any ideas what else I should check. The M18 Milwaukee works good again.

Hello, have a problem with my Lyman gen6 touch screen powder dispenser, it is not turning on. When the power is given through the power adapter it starts beeping "beeeeeeeeeeeee" now buttons are working, the power to the touch screen is about 2.18 volts. Cant fix out the problem, can you be so kind and advise me, where to dig? I am from abroad, and can't send it to you for repair, unfortunately

Thanks very much for this informative & well made video. I have a D5 Evo that is giving the DRIVE FAULT "Q3 OC" error when it is cold in the morning. Although I have done basic DIY soldering work with an iron before, I'm not sure if I feel confident with using a heat gun on the FET's, as i dont want to damage anything else. I think I will take the board in for repair 👍

Hi, would you mind sharing contact details? Need your help with my Treadmill. Thanks

Hi Craig, great video! I have one of these boards salvaged from an old treadmill, and I want to repurpose it to power my grain mill (yes, fellow brewer). Some years ago I found guidance for wiring buttons to the 7 pin connector at the bottom of the board to control the speed of the motor. Unfortunately I have lost this information, and the little harness I made up at the time. I have not been able to find it again! Your video gives me an idea though, and I want to see if it is sound. As I understand it, U3 is what triggers the motor and conveys the pwm from the low voltage to the high voltage circuit. Could I just provide my own pwm signal at 1.9v directly to pins 2 and 3 of U3 to drive the motor? If so, this would be even better than the push buttons! Thanks, Frazer

Need to replace one of those things but on the motor part ore where it stans motor

I did this and flowing your diagram and it doesnt work except it turns on and off. I wonder what else is going on?

Good day, under diagnostics the drive and controller are ticked but the motor has a X. The motor turns on if connected to direct power. What could be failing?

Hi Craig. Thank you for your video! I have one of these and I'm busy trying to sort my foot pedal. I'm battling to open it up - how did you separate the top and bottom of that pedal? It feels really stuck on and worried that prying too hard might break something. Hope you get my message! Kind regards Angelique

How can I get my DCMD67 board to you for repairs

Thank you for the video. What's the white cannister like part just above the com port?

I've recently been working on these boards and some larger versions of the same circuit for a treadmill engineer. I too came across a blown MOSFET, then measuring the 12V output at the connector, I got a stable 12.26 volts. I have another identical board, that I've checked thoroughly, which has zero shorted components...but it was marked as a faulty board and not working when fitted. I'm getting very different thermal imaging of the "faulty" board, in comparison to the board with the stable 12.26V output. Good board has an input voltage of 16volts on the LM812 voltage regulator... however the bad board has unstable input to its LM812...bouncing from 10v to 13v. The bad board TL431 is getting hot, but is not faulty, as even after changing exhibits the same symptoms. The good board TL431 is not heating up at all under thermal camera. After testing literally every possible component, I suspect the issue with the bad board and other boards lies within the vertical circuit board that is potted in resin compound. There are 4 ICs on this small board and in my case 1 of them is definitely a PWM chip for switching the transformer. This is my guess as to the cause of unstable 12v output at the connector.

30:00 250 volts on the bridge rectifier output is because the large relay actually switches the bridge rectifier. Only when the large relay is switched on, will you get full rectified voltage.

Can u auggest a equallent componet of NCE30th60bp mosfit

Nice stuff Craig, where do i find your uController Tuts?

Can I send my DStv 3A Recorder?

Awesome learning you are best keep it up

Hi, my treadmill shows an error E1,when i press start button, the motor rotate and off.

Hi i have question what is the serial number of this regulator triode on the board near the relay , it's burend and i can't read it

Sir I have same board .it's working good but after 6 km/h speed .speed doesn't increase.can u help me to solve the issue

😢 *promo sm*

hello sir i need help, can you tell me what value dioda zener number code d34, location from left side resistor code R6 value 170 ohm. my dioda zener cracked cant see real value for replacement that diode zener. thank you

hi was the lcd dead on this pcb i was trying to fault find but no luck

Very interesting... Thank you Brau..

Hi Greg very good explanation. I'm going to replace my board very soon because i'm not expert on electronics. What's your opinion? My diagnostic reports: H bridge Motor fuse ? ? ? All in unknown state I have tested the motor straight from the battery and runs well. What's your opinion? You guess the problem is on the board?

I kn ow very little about circuitry but would appreciate it if you could show me where a potentiometer to control motor speed might be inserted in the control board. Thanks

My snappy chef shows e2 error the manual said it’s faulty heat sensor that I’ve replaced but still shows e2 error after 30 seconds of heating. The fan is working fine. What could be the problem

Thanks for the video. I just thought of posting a comment in case it helps someone. My I4 died the other day - it died after the power cable came loose and the power supply became patchy for a few seconds. I tried with the power cord of Xtar VC4 (the 12V tip is O/d 5.5 mm and I/d 2.5mm btw) and the charger was working so I thought may be the fuse has blown. When I took it apart the fuse was ok. The bridge rectifier was alright as well. Testing resistors and capacitors was out of my limited expertise, so I abandoned the repair. After I put it back together I thought I will give it a go as I had seen another comment saying the charger started working after a few days of doing nothing. And lo and behold, I did nothing other than pulling it apart and putting it back that it started working and is happily charging my batteries.

can I adjust the speed just by adding buttons on the speed up, speed down and rpm pin sir ?

I have a new I4 and the mains lead came out partially. Foolishly I pushed it back in and there was a loud crack and the unit stopped working. I could not see how to get it apart, but thanks to you, I have now. I suspected the fuse but it has continuity and the bridge rectifier does not display a short on my multimeter. Regrettably, with little experience of printed circuit boards, I do not know where to go next but suspect that a repair will be likely beyond my capacity.

Hi Craig, Which Password have this inverter for Installer? so you can select DC input: Parallel or independent. Thanks!

Thanks brother. This is very helpful 🙏

Sir translate in hindi

Can you please tell me which one is Q1 in D5 evo PCB.

Sir Hindi translation

Hello , what is the BCM cpu model ?

I have this exact same board and it seems to have crapped out. I'll need to find someone to play around with it.

Do you have any social media accounts?? Iam from India i want your help

Make new video centurion d5 Evo controller repair please ( Driver fault)

Are you in cape town

Hi there I have a trojan treadmill with a DCMD67 board the middle board in your video when I press start on the keyboard it counts down then I hear the relay click in but the motor doesn't turn and the error 1 pops up on the screen

thank yuo , you encouraged me to open the screen and founed that the first plug at right + and -- it has fused with the body . I shaked it the screen comes back ..Now can I use oil for it ? many many thanks .

pfaff 1471 I did what you do. to my machine but screen didnt show anything . please can you help me to fined the problem .Thanks ..