The Star Wars (Atari) repair and maintenance topic

[Belike]

Buy a new deflection pcb....

Thanks Michael, I knew I can always count on you.

André@ Thanks for the tip, I also prefer the original amplifone monitor, maybe one day...........
By the way, I made tons of pics from all the connectors and the def.pcb, I wanted to be sure to reinstall it in the correct way, that is not so simple like a MTC 900.

[Muerto]

Buy a new deflection pcb....

Thanks Michael, I knew I can always count on you.

Hehe, couldn't resist with a lame answer... 

[level42]

We'll forgive you.......................on September the first !

Béla, I can help you with the board if you want...you can send it, I'll have to work on a WG6100 soon anyway (right Atarimania ) !

[Belike]

Thanks André, I will a try to test those transistors, that Dez advised me on Klov, if I fail, I will send it to the Master!

[level42]

I really have no idea why he wants you to test those.

If I read your story correctly the collapse happened after you had been wiggling and disconnected and re-connected the connectors, right ?
Thus I think there's something wrong with the connection. Transistors don't all of a sudden go bad because you wiggle a connector somewhere IMHO.

Maybe you can make a macro pic of that connector (solder side) ?

Anyway Dez is a great guy and has done miracle things with recreating Amplifone hardware so he does know what he's talking about, and it can't really harm to check them....

[Belike]

Here we go:

[Etienne MacGyver]

These look like cracked / bad solderjoints to me..





Better reflow all..

[level42]

Yup...2nd pic riht most pin of the commector....pretty obvious crack in the soldering. Did you try to move that pin while looking at the soldering ?
The 3rd from the right also looks suspicious already....

Anyway, they all look dull, renew at least all the connctor solderings....

[level42]

Yup, just zoomed in on that first pic and Etienne is 100% right all of those show obvious cracks.

The one on the left of the left-most circle is bad too and so is the one lower right hand side of the right-most red circle.


Conclusion, do all connector pins like I said, totally remove the solder, then inspect again to see if the track and the solder island around the pin is notcracked !! before soldering it again....

[Etienne MacGyver]

i didn't even zoom 

[level42]

i didn't even zoom 

Saw the one's you circled without zooming too, but with I saw two more

[level42]

Here's a brilliant drawing I just made....

this shows what I mean with the possible crack between the solder island and the track....



Check this using a magnifying glass or similar and AFTER you removed the old solder and BEFORE you do the new soldering.

[Belike]

Nice one André!
I just did the job and aslo replaced a broken 0,47uf 35V cap, but nothing changed.
I also made a continuity test on the new soldered areas and they are fine by now, seems like there is something else broken.
I will also give a try to those transistors soon.

[Superully]

man, andré, you are an artist!!!

[level42]

It is rather expressive don't you think ? Those minimalistic lines ? Yeah....I'm pretty happy with it, although, as you know, a piece of art is never really finished....

 

Béla....man that's too bad I had such good hope ! So...you're basically at what level now, right side dark or.... no picture at all ?