Maybe worth reading up on Dim Bulb Tester might save blowing any new parts
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Re: Help with Motor Control Board
Maybe worth reading up on Dim Bulb Tester might save blowing any new parts
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Re: Help with Motor Control Board
Ordered parts now waiting for arival.Leave a comment:
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Re: Help with Motor Control Board
Sorry that was a typo, I had it correct in post #26 though, at least I got something right. Will try to order this somewhere.Leave a comment:
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Re: Help with Motor Control Board
Well, I am glad I asked for picture because in post 230 you have the numbers as 'W33B20' that is why I could not find any info on it.
The actual numbers as printed on the body is W33N20, so it is 'STW33N20'
http://www.mouser.com/ProductDetail/...pYC6krShfGCA==Last edited by budm; 01-14-2015, 10:13 PM.Leave a comment:
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Re: Help with Motor Control Board
This is the 2 prong one next to it.Attached FilesLeave a comment:
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Re: Help with Motor Control Board
Can you take good pictures of the MOSFET?Leave a comment:
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Re: Help with Motor Control Board
Thanks for the last info, nice to learn as much as possible. Can someone tell me what that one 3 leg mosfet is. Says Morocco ST 9540 427654 W33B20, when I call order no one says they can find it by those numbers. I can't find on Internet either.Last edited by Crrose; 01-14-2015, 07:26 PM.Leave a comment:
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Re: Help with Motor Control Board
Ok so the dimple is pin one, I was going off the data sheet that showed pin 1 diadonally on opposite corner by the way the numbers were on the chip, I see now a black dot I guess represents the dimple. Again another learning mistake by me.
Yea pin 2 goes to 562 chip and under C5 to R19Leave a comment:
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Re: Help with Motor Control Board
https://www.badcaps.net/forum/attach...4&d=1421039122
"As far as I can see pin 2 is connected to pin 3 and the orange 3 prong capacitor?" I think you look at the pins wrong, the dimple at the bottom left of the IC is pin 1 (make sure you put the new IC in correctly).
I see pin 2 is connected to the SMD resistor with '285' printed on top, another end of the resistor is connected to pin 4 which is the Ground pin of the IC.Leave a comment:
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Re: Help with Motor Control Board
As far as I can see pin 2 is connected to pin 3 and the orange 3 prong capacitor?Leave a comment:
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Re: Help with Motor Control Board
BTW, you should check and see what pin 2 (input pin) of the MOSFET driver IC TC1410 goes to.Leave a comment:
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Re: Help with Motor Control Board
If you are willing to stick to finding a problem there's always people here willing to help. If you stop making mistakes maybe you've stopped learning
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Re: Help with Motor Control Board
Mistakes? How about soldering the cap wires to the rectifier leg by mistake and giving you false meter reading expecting help, or checking things in diode mode when they should have been done in Ohm setting confusing everyone? I am glad you have all hung in to continue to help me and not just throw your hands up and move onto another forum question.Leave a comment:
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Re: Help with Motor Control Board
You're welcome. It is very easy to make a mistake even if the board was in front on a person. That is why it is important for each of us to look over things. Usually when I make a mistake it is so obvious a monkey could caught it, but I get so sure that I am blind to it, so I just tell the person who caughts me I just screwed up. BudM, thanks for the information that you provide it sure helps me to understand things.Leave a comment:
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Re: Help with Motor Control Board
I would look over the power supply board carefully as well. I fixed one of these for my parents several years back. The one large filter cap on the power board was bulging. It caused two diodes to burn up and also burnt out one of the windings on the mains transformer. There was no fuse to protect against this situation and the burning silicon smell in the house with no apparent source really freaked my mom out. Replace that cap or leave the unit unplugged when not in use.Leave a comment:
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Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.
Upon bringing it home and plugging it up, it showed a standby light.
I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.
The screen seems to blackout and stay black, but with a flashlight I can see the display.
With my Playstation 4 connected via HDMI, and running a game I can hear sound.
Assuming... -
Hi, this is my personal laptop, which the original board (lets call it Board A) blew up PU8700 (TPS51486), making a hole on the board, i had left the laptop at my desk one day with the battery fully charged and didn't touch it for a week, but when i tried to turn it on it didn't
Thought the battery was dead, so i plugged in the charger then tried to power on, the power LED blinked once, charged LED still orange, unplugged the charger, plugged in again and I noticed the "magic smoke" smell, so i unplugged the charger, removed the back cover and saw the blown IC (the "magic... -
Hi all, I just want to share the repair of my 60PK550-UA TV set.
The TV set was powering on, just no image. After verification, nothing wrong on the YSus or ZSus boards. Nothing wrong on the main board either.
But I noticed that the LED was not flashing on the Logic Control Board. This is an EBR63450301. The LED is supposed to flash even with all the flat cables disconnected, with only the power cable attached.
All the voltages measured at the electrolytic capacitors on the board were good. From top left to bottom right:
C57: 3.30V
C61:...07-20-2023, 12:38 AM -
I have a motor control board I am trying to repair. I've been told the motor is fine, but the control board will only make the motor go one direction but not the other. Power comes in through a linear transformer and then a rectifier bridge and then filter caps. No schematics for the board. Relays on the board are 24V so I started by setting my bench PSU to 24V and injecting voltage. There are several LEDs. All but one LED lights up. There are test points labelled +15V, 0V and -15V. When checking voltage potential between +15V and 0V, I get a perfect 15V. For -15V to 0V, my meter shows approximately... -
Hi,
I am looking for this Treadmill Motor Control Board 032669-IF schematic or how to fix it myself if someone can guide me and let me know what parts to change...
I hope someone can help!
Thanks.
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