Tek 2467B@Papy Smurf : Thanks for the BOM ! Only 25 bucks for the whole lot from Mouser... I so wish Mouser (or Digikey) had operations in Europe so I could get the same prices !
Have to make do with Farnell with has less choice and is more expensive. The same BOM will probably cost me 50/100% as much
@TerraOperative : Thanks for the video ! Wow that was an excellent one ! 40 minutes of 2467B goodness, TSP levels of quality !
![ThumbsUp :-+](https://www.eevblog.com/forum/Smileys/default/icon_smile_thumbsup.gif.pagespeed.ce._JElyJQqdB.gif)
I learned an awful lot in that video for sure !
![Cheesy :D](https://www.eevblog.com/forum/Smileys/default/xcheesy.gif.pagespeed.ic.KPzuH4J-TG.png)
Wow you recreated the convoluted front panel flatflex, I am impressed !
![Shocked :o](https://www.eevblog.com/forum/Smileys/default/xshocked.gif.pagespeed.ic.CrwtrNUjLO.png)
I meant to ask you how it costs but I understand you have a partnership with PCBWay so you probably got it for and do'nt even know how much they would have charged ?
Anyway, looks like I will leave that flat flex well alone unless I really need to clean those pots !
![Laughing :-DD](https://www.eevblog.com/forum/Smileys/default/smiley_laughing.gif.pagespeed.ce._hfWAz_QHO.gif)
... but good to know that if I screw it up anyway, you have the Gerbers ready for me to get a new cable done !
![Cheesy :D](https://www.eevblog.com/forum/Smileys/default/xcheesy.gif.pagespeed.ic.KPzuH4J-TG.png)
So looks like I have an Mk1 scope then... the CPU board has the Lithium battery + RAM, not the later integrated NVRAM.
My scope is even older than yours.. battery dated December 1988 ! The ASICs on the main board are dated 6+ months prior to that, April/May 1988.
Thanks for the great detail about the battery replacement, I ought to do that before it's too late I guess !
![Scared :scared:](https://www.eevblog.com/forum/Smileys/default/scared.gif)
Not touching the flat flex for now, however I still need to pull the front panel regardless, because one of the green status LEDs is kaput IIRC !
Too bad the main board needs to come out to pull the front panel
![Face Palm :palm:](https://www.eevblog.com/forum/Smileys/default/xfacepalm.gif.pagespeed.ic.EBDwh1hCfo.png)
Looks like most of the misery comes from having to desolder each and every BNC socket eh ? But looks like if approached calmly and one is taking his time, it should not be that difficult/risky of a job. I guess I shall see...
Problem is finding a new LED with the characteristics as the old one ! So that the colour and brightness are identical (enough) to "blend" with the others !
![Sad :(](https://www.eevblog.com/forum/Smileys/default/xsad.gif.pagespeed.ic.L3FGyzQrjB.png)
I guess back then there were no high brightness LEDs, so I need to get old school technology LEDs, to begin with. But then need one with the same wavelength and brightness / luminosity !
I will look in the part list, maybe there is a manufacturer part number in there, I could look up the datasheet to find specs and try to find something similar....
If not I guess I will have to buy many different makes and models and try them all to see which one gives the most acceptable result, gonna be time consuming !
![Face Palm :palm:](https://www.eevblog.com/forum/Smileys/default/xfacepalm.gif.pagespeed.ic.EBDwh1hCfo.png)
I see a lot of electrolytic caps on the main boar as well !
Not touching this board unless proven faulty AND until I have decent soldering gear. Need a powerful iron for this kind of large multi-layer boards, as well as a solder sucker iron gizmo like you have. Not going to risk damaging the board with my old 50 Watt Magnastat Weller...
![Undecided :-\](https://www.eevblog.com/forum/Smileys/default/undecided.gif.pagespeed.ce.cCZ6w-jWpR.gif)
Thanks again for the video !!!
![ThumbsUp :-+](https://www.eevblog.com/forum/Smileys/default/icon_smile_thumbsup.gif.pagespeed.ce._JElyJQqdB.gif)
BLACK WIRE: Oh wow yeah you were right, it's a pass-through for the fan !
![Shocked :o](https://www.eevblog.com/forum/Smileys/default/xshocked.gif.pagespeed.ic.CrwtrNUjLO.png)
Boy fro a distance it's everything but not obvious ! There is not much insulation between the inner and outer par, and the solder and wire strands wrapped around it hid 90% of the insulation, all you could see is a tiny bit of brown stuff (the insulation material..) that I simply mistook / assumed to be some flux residue !
![Confused :-//](https://www.eevblog.com/forum/Smileys/default/confused0024.gif.pagespeed.ce.5xOqKkq0Co.gif)
But once desoldered yes, the pass through it perfectly visible and there is no mistaking any more !
![Grin ;D](https://www.eevblog.com/forum/Smileys/default/xgrin.gif.pagespeed.ic.QVVz6XIT20.png)
The black plastic bracket right next to it is in the way big time, but it takes a couple seconds to remove / unscrew it, then you get much better access for the soldering iron...
Oh, and now I have the PSU freed, I looked more closely at the RIFA caps and sure enough one of them was responsible for all the smoke that escaped the scope('s butt !
![Laughing :-DD](https://www.eevblog.com/forum/Smileys/default/smiley_laughing.gif.pagespeed.ce._hfWAz_QHO.gif)
Look at that cap !
![Scared :scared:](https://www.eevblog.com/forum/Smileys/default/scared.gif)
OK so let's get cracking now !
![ThumbsUp :-+](https://www.eevblog.com/forum/Smileys/default/icon_smile_thumbsup.gif.pagespeed.ce._JElyJQqdB.gif)
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