Composite video mod problem

[JefferysGhost]

So I finally got around to installing the composite video mod from Vintage Gaming and More. When I first hooked it back up, it worked fine, but, after putting the top back on, it didn't even power up.

After inspection, the black ground input wire had come loose from the board. The trace had de-laminated from the board and broken loose, so I resolldered the black wire to another place nearby on the same trace.

Now it works against, but I've got no sound.

 

Any suggestions?

[xucaen]

did you put the metal plate back on perhaps crushing the yellow wire? I did that and it caused the wire to ground against the plate thus causing no sound. See this: http://youtu.be/FNsEChrT8EE?t=7m35s

[JefferysGhost]

Thanks for the tip! I will check.

[JefferysGhost]

THANKS XUCAUN!!!! That was it!

[JefferysGhost]

Drilling a hole in the metal box (as others have done), and routing the yellow wire thru that, is the solution. My yellow wire was grounding where it was sandwiched between the circuit board and the inside of that metal box.

[freewheel]

You guys replace the RF shielding after modding? I'm not sure I've ever bothered.