520 STFM C070789-001 Rev F2

[friijy2001]

Hi everyone,

Another one I am tinkering with and this one seems to boot but opened her up before I look at doing the fixes.

51200390919_5ba4bda106_z.jpg

I have a couple of questions if someone on here who may have a similar board could answer?

1. This is a 2 CHIP TOS version 1 so want to upgrade to TOS 1.4 and noticed some extra wires around the TOS chips, I was going to buy a set 6 chip TOS chips, remove the wires and just solder them in to the sockets. I am assuming the wires are to convert to a 2 chip version so just removing them will be fine?
2. It looks like it has been upgraded to 1MB but seems to be missing the capacitors next to the chips, I was just going to add these in. Is there any reason they are not soldered on the board? any thoughts?

Hope that all makes sense

[PhilC]

(Just moved this into the blog forum as its not really a hardware issue topic}

[friijy2001]

(Just moved this into the blog forum as its not really a hardware issue topic}

Thank you Phil, still finding my way around

[exxos]

@friijy2001 could you upload the image onto the forum please, and upload a higher resolution as we cannot see where that wire is connected, but probably a track repair.

[friijy2001]

@friijy2001 could you upload the image onto the forum please, and upload a higher resolution as we cannot see where that wire is connected, but probably a track repair.

Please find attached, it may be larger than the forum but hope you can see it. If all else fails I will take a zoomed image later and make reference to the PIN numbers

834E2C76-0259-439B-A4C7-00548C168FA4.jpeg

[rubber_jonnie]

@friijy2001 could you upload the image onto the forum please, and upload a higher resolution as we cannot see where that wire is connected, but probably a track repair.

Please find attached, it may be larger than the forum but hope you can see it. If all else fails I will take a zoomed image later and make reference to the PIN numbers

834E2C76-0259-439B-A4C7-00548C168FA4.jpeg

I've edited to be an inline image rather than an attachment, as this is preferred.

[friijy2001]

It seems like the wires connect the lo TOS pins to various parts of the board.

[Steve]

1 - I would buy a TOS switcher. They look socketed, so super-easy job, why make work for yourself.
2 - I would install the caps, they are available on exxos store

[stephen_usher]

Those bodge wires looks as though someone's removed the original sockets and broken some traces.

[friijy2001]

Those bodge wires looks as though someone's removed the original sockets and broken some traces.

Thank you for this, I just noticed the 2 chip 1.4’s are out of stock at present. Can these be re-wrote on mine or shall I just wait for them to come back in stock?