Unknown board for car need fix.

[Jonazz]

Hi Community

 

I have some few q´s about a board there inside this vintage car.

My car have the digital dash
https://drive.google.com/open?id=1ufGQuhZ-SDCN6eLmb1X6ssmDrw7pd4Z6


 

The board have a broken componet that i can´t find out what is so i have replace it:
https://drive.google.com/open?id=1p9QeC4Vs85zRiGfiLvNVN0ltkgMS2HqK

Here it is? what is it? where can i buy a new one?
https://drive.google.com/open?id=1KU9jeeU6tjrZ9n5kw1pyqrXPagUAVLb0
Someone tells me its a National Semiconductor TO-220-5??
 
i want to keep the electronics alive for longer and now its starts to become old so want to replace what needed to be replaced.

can the community help me telling me the componets so i can buy new ones.

https://drive.google.com/open?id=1buNIjWZPVoKo3OQcdKCRjq_KsJvIeQWn
https://drive.google.com/open?id=1Mmh5z3EyWdGubFfIKVGvIjdzIOo3uDn1
https://drive.google.com/open?id=1gTPWkqzelHPPYM0ZjX_MUzd25wumCV_x
https://drive.google.com/open?id=1x16kRkMxtk6P_oDbFzIh_U9WYhrYDQDO

Hope you alle can help me.

 

//Jonas Villadsen

[GeorgeOfTheJungle]

That's, very likely, a switchmode regulator, an LM2576 or something like that. Let us see a photo of the other side of the pcb.

[Jonazz]

Here you got the back side

https://drive.google.com/open?id=1A9wH8dg_8RasHU6sIN1Y5TFlQk7e4-mQ
https://drive.google.com/open?id=1ABoCJ7R9rfZ0p_fWbS60rgAl_CjimDW-
https://drive.google.com/open?id=1AKFNMVjOqMiYrN522V0q0ddMh9wFoQMg
https://drive.google.com/open?id=1AGj5SjtKHp4j24QS0ToRNgixuwOmP9LO

[SilverSolder]

Hi Jonas,  You might get more help if you attach the images to your post, rather than linking to them.

Many people will not click on unverified links (you shouldn't either!).

[GeorgeOfTheJungle]

If that's a 2576, pin #1 (Vin)  should go to BAT/+12V, pin #3 to pin #63 of the HD44790 (GND), and pin#2 (OUT) to HD44790 pin#22 (Vcc) through a coil. Follow the pcb traces with the tester, look at the datasheets, and try to guess if it makes sense. For example: looking at the diagram in page #1 of the LM2576 pdf, try to find D1, COUT and L1 in the pcb.

LM2576:
https://www.ti.com/lit/ds/symlink/lm2576.pdf
HD44790:
https://pdf1.alldatasheet.com/datasheet-pdf/view/129657/HITACHI/HD44790.html

Many people will not click on unverified links (you shouldn't either!).

Watt? Why? It's a google drive link.

[Jonazz]

Hi
I tried to put in the pics but eevblog did not put them in.
why i had to go with the link thing.
i can try again.

[SilverSolder]

Many people will not click on unverified links (you shouldn't either!).

Watt? Why? It's a google drive link.

Where I work, you would be taken out back and shot by the IT security bods for clicking on a link that leads to...   what?  Nobody knows what is at the end of a link that looks like someone's Google Drive.  In particular, a new forum member that could be a mobster for all any of the established community knows (Jonazz, this is not directed at you personally of course!).

"Think before you click"

[Jonazz]

Why are you wasting my/our time with this?
im here to get information from experts TI can not help me.
i want to fix this with help from all over.
if i dont have time to sit down and learn how this forum works then i have to take the fastest way likes. from my own drive.

[Gyro]

Where I work, you would be taken out back and shot by the IT security bods for clicking on a link that leads to...   what?  Nobody knows what is at the end of a link that looks like someone's Google Drive.  In particular, a new forum member that could be a mobster for all any of the established community knows (Jonazz, this is not directed at you personally of course!).

"Think before you click"

Whilst I agree that in-post images are, by far, preferable in all respects, the OP is far from unique in doing it. I'm not sure why you're choosing this thread to make such an issue of it. He's a newbe with straightforward question.

[GeorgeOfTheJungle]

Nobody knows what is at the end of a link that looks like someone's Google Drive.

Bollocks. You never know what's at the other end until you 1)click and 2)get the response.

[Mr. Scram]

Whilst I agree that in-post images are, by far, preferable in all respects, the OP is far from unique in doing it. I'm not sure why you're choosing this thread to make such an issue of it. He's a newbe with straightforward question.

It's been remarked in other threads as well. 

[james_s]

Many people will not click on unverified links (you shouldn't either!).

Watt? Why? It's a google drive link.

Where I work, you would be taken out back and shot by the IT security bods for clicking on a link that leads to...   what?  Nobody knows what is at the end of a link that looks like someone's Google Drive.  In particular, a new forum member that could be a mobster for all any of the established community knows (Jonazz, this is not directed at you personally of course!).

"Think before you click"

Where I work, Google Drive is used for hosting all of our internal documentation. It was not my choice to migrate to G-suite but whatever. I block all scripts by default so not too concerned about clicking on a link.

[jancumps]

I advised the OP to post the question here, when I saw his question on another website where we didnt’t know the answer.

I should have warned him that attitude towards new members is going down the drain here lately

[james_s]

Well there are a few people who lack tact, but hopefully that doesn't scare him off. I'm happy to help at any rate, although not familiar with that specific component. I don't see any other parts on there that I would replace unless they are determined to be bad. It should even be possible to repair the broken off part if a replacement cannot be located. You can use a file to grind down the epoxy to expose enough of the broken leads to solder new wires to.


Here are the pictures for those who are paranoid about links.

[Macbeth]

Car make: Unknown
Car model: Unknown (the owner knows, but hey, it's "Vintage")
Board function: Unknown
Random links: Untrustworthy
New Poster: Unknown/Untrustworthy/Troll

How somebody doesn't provide the bare minimum information without having to be co-erced when asking such a simple request is beyond me.

[SilverSolder]

Poor design decision to have a component flapping in the breeze on an automotive board...   almost bound to suffer from metal fatigue like this due to vibrations.

I agree with @james_s,  the easiest is to re-mount the component that fell off (and glue some supporting structure on the board to make it last...)

Perhaps the whole board can be sourced from the US, where they should be common enough...  (eBay?)  -  assuming the car is an 80's/90's Pontiac Firebird

[Jonazz]

Pontiac firebird 88 with digital dash.

[SilverSolder]

Car make: Unknown
Car model: Unknown (the owner knows, but hey, it's "Vintage")
Board function: Unknown
Random links: Untrustworthy
New Poster: Unknown/Untrustworthy/Troll

How somebody doesn't provide the bare minimum information without having to be co-erced when asking such a simple request is beyond me.

People are such utter snowflakes nowadays too, you can't point out simple facts without upsetting their delicate sensibilities.  Why, the other day I pointed out to a lady at work that her bottom is a bit on the large side.  As a thanks, she almost slapped me!   Sheeez....

[Jonazz]

The board show the miles plus can change some settings.
The problem is. its the owner before me who lost the part.
So i dont have it.
Interresting to see how evil and down looking this community is! like to where it is embarrising.
I was in my good mind asking for help here! but TI can not help. and you just kicking me and pissing on me.
Hope you feel good there back behind your screen.

[SilverSolder]

Pontiac firebird 88 with digital dash.

Cool car!  -  you can probably easily source that part from the US, once the part number has been identified.

[james_s]

Car make: Unknown
Car model: Unknown (the owner knows, but hey, it's "Vintage")
Board function: Unknown
Random links: Untrustworthy
New Poster: Unknown/Untrustworthy/Troll

How somebody doesn't provide the bare minimum information without having to be co-erced when asking such a simple request is beyond me.

Make and model are irrelevant, unless one of us is familiar with that specific car in which case we would recognize it anyway. The board function is not unknown, he said it's part of a digital dashboard and it has a clearly visible HD44790 LCD controller on it, I think that's obvious. Would it matter anyway though? I've reverse engineered plenty of unknown boards, it's not that difficult to figure out what the unknown part is. They're not random links, they're Google drive links, the danger is relatively low. New poster, so what? We all start out as a new poster, how do you expect someone to know all the etiquette right off the bat? Cut him some slack for being new.

How somebody can feel it necessary to throw such a fit over something so minor is beyond me. 

[GreyWoolfe]

Why are you wasting my/our time with this?
im here to get information from experts TI can not help me.
i want to fix this with help from all over.
if i dont have time to sit down and learn how this forum works then i have to take the fastest way likes. from my own drive.

[/quote] Interresting to see how evil and down looking this community is! like to where it is embarrising.
I was in my good mind asking for help here! but TI can not help. and you just kicking me and pissing on me.
Hope you feel good there back behind your screen.

I am not looking to throw fuel on the fire and I will not get into the fact that some responses may have been less than stellar, but think on this.  You can't control others' behavior but you can choose how you respond.  When you respond in kind to perceived bad behavior, you open yourself up to be viewed the same.

 Just for information, if your images are too large, you can't post them.  I use Irfanview to resize the images to fit the parameters.  1024 X 728 works well.  Good luck on fixing the issue.  The old firebirds were neat cars.

[Jonazz]

I do think it is impossible to find a skrapped board to install it into my car..
Not many cars had these digital dashes...
Also for the time they.. where unstable but cool looking!
And this is only the first board the preowers all ready took it out... after this board i have to go into all the other boards.
Did not know that only that small part was that rare.. :/

[Haenk]

Zooming in reveals the part missing.

(Yes I know, first time poster, blah blah, dubious picture on the Interwebs thingie 'n stuff...)

[GeorgeOfTheJungle]

Maybe 1573 is GMs code for the LM1575-33 ?

https://pdf1.alldatasheet.com/datasheet-pdf/view/203233/NSC/LM1575_07.html