Re: Jecod DCS3000 marine 24v pump
The IC's have arrived, I installed one and it worked for about 15 seconds then stopped and went back to the way it was, I tested the new IC and found one of the circuits shorted, I swapped it out and tried again didn't work at all this time, retesed same issue, thought I might have a bad batch of IC's tested another new one off the board it tested good, went to fit it and damaged the board looks like I've stuffed this up, thanks for all your help though guys
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Re: Jecod DCS3000 marine 24v pump
Caps have arrived, just waiting on the IC's should be here in a week or so, i'll post once it's all repaired with results. Thank you
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Re: Samsung LE40A558P3FXXU Colored lines
I rechecked the voltage at VGL - 5.9
I have removed the silicone bumper from as-15 after 5 mins of tv on its cold how long do I need to leave it on before testing?
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Re: Samsung LE40A558P3FXXU Colored lines
I'm not sure I understand do I need to retest the VGL, were the rest of the results okay, I will have another close look at the board for the AS15 chip...
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Re: Samsung LE40A558P3FXXU Colored lines
found them all these are the results I got with the screen turned on
V1D8 1.8v
AVDD 15.66v
VGL 5.9v
VGH 21.5v
V3D3 3.3v
V2D5 2.48v
which chip is the as15-f please?Last edited by 24mech; 08-03-2020, 12:26 PM.
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Re: Samsung LE40A558P3FXXU Colored lines
I can't see the test points you are asking me to test, I can see lots of points VGMA1 through to VGMA22
I can see loads starting OX and EX
an LVDS_IN and LVDS_OUT
REF1 through to REF21
are we looking at the same board you do want me testing on the T_con?...
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Re: Samsung LE40A558P3FXXU Colored lines
Great what voltages should I be looking for?
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Re: Samsung LE40A558P3FXXU Colored lines
I think I understand what you're saying, it's to hot to spend time at the PC to study the pictures to look for the fault, is there anything I could do to help with the looking?...
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Re: Samsung LE40A558P3FXXU Colored lines
Thanks for your response SMDFlea it's a used unit I got for my daughter a while ago that only recently started showing this issue no one has looked at it before me that I'm aware of which component are you referring to please?
I see it now R867, looking at the board several of these resistors are not straight R867,R850,R851,R278 there's quite a number of them so I've checked the 12VIN and got 12.4V does that mean the issue lies T-con forward then? component F1 is that going to be a fuse?...
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Re: Samsung LE40A558P3FXXU Colored lines
Hi, I'm not sure of the purpose of your response? did you have any advice/help to give? I would really like to get this sorted out and don't want to just throw boards at it someone please let me know what I should be looking at/doing next, I've checked the T-con input and have 12.4V on the 12VIN test point
Thanks for all your help and understanding this level of tech testing is not my strong point though I do enjoy the feeling of getting something going again....
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Re: Jecod DCS3000 marine 24v pump
Thanks eccerror,
I have checked the motor winding and do indeed get a low resistance between each, It changed when I moved the motor impeller though I assume this would be normal as you are changing the magnetic fields when doing so, I have checked the output voltages I can see two of them pulsing and one is not which fits with the diode test results looks like with the help of you guys I may get this puppy working again thanks....
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Re: Jecod DCS3000 marine 24v pump
Thanks redwire
so on Diode test the results I get are below.
S1(Neg) to D1(Pos) (3-7/8) two show 0.5v one shows 0.0v not open ciruit
S1(Pos) to D1(Neg) (3-7/8) two show .0L open circuit and one shows 0.0v
S2(Neg) to D2(Pos) (1-5/6) two show .0L open circuit and the other shows 1.7v
S2(Pos) to D2(Neg) (1-5/6) all 3 show 0.5v
I'll get some ordered up hopefully this will be the extent of the issue, I will report back once I have replaced it and tested thanks...
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Re: Jecod DCS3000 marine 24v pump
I've added some pictures of the pump and of the flashing LED fault code with the case back on so you can see it more clearly....
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Re: Jecod DCS3000 marine 24v pump
Hi redwire,
The model is as in the heading DCS3000 the DCW manual is what was provided to me with the pump
I cleaned of one of the IC's and took a picture, I see 4614B and BA4Y12 do you know what I should be probing and what I should be seeing please?
also I did a quick needle probe on the components next to the ICs got some different results 4 showed 1.4kh and two showed 0.8kh. I've edited a pic to show the results, thanks for your help....
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Re: Jecod DCS3000 marine 24v pump
Hi Eccer0r,
I have had a look at the pump several times now all is there and in tact, is there any way for me to power on the pump to check it works or any resistance checks I can do across the 3 wires of the pump?
With cover on the LEDs that light up match to No.3 'the impeller stops running' code. With the pump out of the water or in the water and powered up it jigs/stutters a few times and then pops the error code, with the pump disconnected from the controller it take a lot longer to pop the code...
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Re: Jecod DCS3000 marine 24v pump
I have checked the input voltage from the power supply is 24.4V I will be replacing the two caps I removed from the board as one started to leak when I was trying to fit it back into the board and it now reads as 512uf so new ones on the way though I don't believe this is the cause of the issue. I have attached pictures of the control board one of which shows the error being given, It's showing the same error with or without the pump connected....
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Re: Jecod DCS3000 marine 24v pump
Mine does not have a display showing Er.. it has LED lights that stay on to signify the issue....
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Re: Jecod DCS3000 marine 24v pump
I get an error for impeller jam, it's not jammed, I've had it all apart and cleaned it, I have tested the 390uf caps both come back as 414uf I'll check the input voltage and get some god quality pictures uploaded, I have both caps out for testing got funny results when they were in the board
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Re: Samsung LE40A558P3FXXU Colored lines
anybody know what I should be looking at next? thanks
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Jecod DCS3000 marine 24v pump
Hi everyone, I know this may be a long shot, I'm looking for some help with the 24 volt power supply for my marine return water pump. the issue I have is the controller thinks the pump has a blockage so it wont power up the pump, what I'm hoping I can do is fool the power supply into thinking the pump is ready to run, I can't find any info on repairing this controller online, can anyone help?
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