Reconditioning SAM (Signal Acquisition Module)

[tyc]

I found something else: the pin of an IC is corroded so I don't know if it still works. It's an MC1413BD, a Darlington Transistor Arrays.

This model is no longer manufactured but the equivalent is ULN2003D1013TR ... how equivalent it is remains to be seen.

[Mjolinor]

It doesn't need replacing, it can still be connected as it should be. I would be more concerned about the through hole plating given the state of the board.

 

You are going to be in a world of pain trying to mend that board.

[tyc]

In the meantime I made some measurements. Between A and B the infinite resistance, between B and C the resistance 0 ... painful.

 

Under the magnifying glass

 

To try a tin correction ... I need fingers crossed :

[tyc]

Test

[Mjolinor]

Two down, several hundreds more to find and fix.

[tyc]

I hope this is the only defect of this kind ...

I still have to stay at home this week - the car is in the public car park.

[Willys]

3 hours ago, Mjolinor said:

Two down, several hundreds more to find and fix.

Beats watching TV or FB ....lol.    As long as he's making headway, great.....

[Mjolinor]

1 minute ago, Willys said:

Beats watching TV or FB ....lol.    As long as he's making headway, great.....

 

True. Worth the effort at least for a while.

 

The other options are hard on the SAM. You need Xprog or something similar as the EEPROM is inside the main processor I think.

[Willys]

Just looking at that main processor is enough to make my toes curl and make me run away!  Even going to the extent he is going is far past where I would go personally, both in patience and skill level. I can't deal with electronics at this level, I hate things I can't see...lol.  Not to mention working on such small items that contain white smoke possibly in the future...?   What's the old saying...? Once the white smoke is out it's very hard to get it back in..?   .lol.

I personally would be saving for a SAM and simply reteaching it to speak to the other 2 computers in the car.  I've had to do mine twice now, once for a blown ECU and the other just playing around in the STAR installing ing and removing items trying to figure things out. It isn't that difficult once you find the correct location in the STAR itself.

Again to each their own and he may just teach us something we/I don't know....which is always a good thing.

Watching with eyes wide open.

[LooseLugNuts]

theres a guy on youtube who has tons of videos about soldering small parts and repairing boards on youtube.....should be easy to find if you search for Louis Rossmann

[Willys]

1 minute ago, LooseLugNuts said:

theres a guy on youtube who has tons of videos about soldering small parts and repairing boards on youtube.....should be easy to find if you search for Louis Rossmann

Yes if the same guy, you can get stuck watching for hours....lol.

 

[tyc]

I'm coming out of quarantine soon and I can mount SAM. I'm just curious ...

[tyc]

On 30.01.2022 at 17:11, Willys said:

 

I have worked a life with electricity - something that is not visible, has no smell, is undetectable with my own senses only when it is too late. You have to 'see' it with your mind's eye. that is, logical. If the SAM in question works correctly and Star does not register error codes, it means that the problem is solved.

I also considered purchasing another SAM that I will synchronize with the other 4 ECUs via MB Star.

For me in the car it's a SCADA.

[Willys]

What is a SCADA, I don't think I have heard of this before...?
I took electronic engineering for a few semesters....I was OK when the proffesor told me to think of it as water running through a pipe, that was easy for me to translate into my 3D imagery in my head. Once they switched to AC current that ended and I quickly got lost. I switched into mechanical engineering and that was easy so to speak. For me any way. That I can translate to an image in my head and understand it very quickly.   I have an issue with just accepting this happens without a good explanation of why and some elctronics is or was like that for me.   But, I am always willing to learn if it is explained clearly to me and how and why it happens the way it does.  Not to forget I am forced to learn now owning this car.  lol.   I appreciate all and any help you have to share with anyone, it really helps.

Thanks.

[Mjolinor]

SCADA is a control system used by the electricity industry. Other control processes do use it but the electricity industry is probably the biggest user.

 

"Supervisory control and data acquisition"

 

It covers a plethora of communication systems at a high level.

Edited February 1, 2022 by Mjolinor

[Mjolinor]

You are extremely unlikely to come across it in electronic studies or indeed, any studies. I studied electronics and did not come across SCADA until I was commissioned to do research into it at an electricity utility.

 

[tyc]

Williys

SCADA https://en.wikipedia.org/wiki/SCADA - I mean something like that and the production is energy (necessary to move).

Mjolinor

SCADA is used in all areas.

For example, now I do SCADA for Michelin. I make tires.

 

SCADA is used in almost all fields and in principle the system consists of several sensors that are read by process computers (EDG / MEG, ABS) and these computers are controlled by a master computer (EEZ / SAM) that displays the results on another (instrument cluster) ... Smart has few process computers. You see on a locomotive ... only 2 are on the traction heat engine.

 

In the meantime I made a stronger N11-3.

Today is the last day of house arrest, sorry, quarantine and tomorrow I can leave the house. I'll see what I know how to do.

 

[tyc]

[Willys]

You have made a more robust connection for sure but a real pain to connect to easily if and when you wish to drop your SAM in the future.....not that I disagree with your fix, just unless there is a connection that plugs into it as a whole and not single wires you may dislike the fix after the first or second time you need to remove your SAM.
My electrical issues are from lack of use of them, if i had someone who could teach me what I need to know as it relays to what i am working on such as our SmartCar then it would be easier for it to sink into my concrete dome...lol.    But learning from a book isn't easy for this type of subject in my case I'm afraid.

 

[tyc]

Dintr-o carte înveți elementele de bază ale meseriei. Trebuie arătat cum se face practic. Problema este că în lume științele au început să scadă – predomină economicul și nu neapărat nevoia.

Într-adevăr, dacă acest SAM nu funcționează sau va funcționa pentru o perioadă scurtă de timp, înlocuirea lui va fi problematică... Va trebui să conectez o mufă 211PC122S1017 dar din păcate nu am găsit pinii prizei pe el. Bineinteles ca este subdimensionat dupa design, dar pentru a beneficia de garantie trebuie sa fac rau.

It's 22:04 (+7 hours from Pefferlaw) and I'm already going to bed because it will be faster for me in the morning.

Edited February 2, 2022 by tyc

[tyc]

This time it wasn't to be ...
I ordered another SAM from dismantling.
And it has a box with connectors, maybe I can find one to try the SAM.

[Willys]

1 hour ago, tyc said:

This time it wasn't to be ...
I ordered another SAM from dismantling.
And it has a box with connectors, maybe I can find one to try the SAM.

At least you tried to get it going.....far better than just chucking it away before having a look see.....But that board was the worst I've seen in my short time owning a Smart Car.
Now you just need to be able to teach it to talk to the other computers.

 

[tyc]

On Friday night I received a SAM V013 whose appearance was questionable. From my former boss so I trusted him.

Today I mounted it on the car and with the help of Star I tried to synchronize it. Successfully, the car does all the functions (on the spot - lights, headlights / wipers / etc and without error codes) but did not want to change VIN and kilometers. Miles know that he takes from the instrument cluster if there are more or vice versa if he has more. Which didn't happen.

The engine started, tormented but started, in 2 weeks I will replace the engine.

About the engine:
-starts very hard
-at the start emits black smoke - a lot
-after 10s the smoke no longer exists
-he has a beating.
I suspect that beating is also the cause of the hard start, the possible causes for the beating (according to me) can be:
-a broken rocker arm
-a blocked dowel - on hydraulic dowel engines it happens that one dowel from the dirty oil is blocked
-a bent valve, pinched or both
-piston spart
More precisely, I find out after I start the engine - in summer when it's hot ...
Now he also found an error on the EDG -B50 shorted to ground. When I change the engine I will also take care of the B50.

 

 

[Willys]

What is the problem with mileages and such? Are you wanting to sell it after you fixed it and the higher mileage hurts the sale? The SAM swap will instantly take the higher mileage number and you can program the old vin into the SAM from the other car....I did it a few years ago, so i have forgotten how i did it but it is possible.
 

[tyc]

 

I don't want to sell it. I recently bought it to have a car to commute to work.

I want it to be the mileage that was .... I mean it should be the real one with which I bought it (+ how much I brought home ~ 15km). I know there is a possibility but I don't know it and that's why I opened another topic - However, it is not a reconditioning.