ARCHIVED FORUM -- March 2012 to February 2022READ ONLY FORUM
This is the second Archived Forum which was active between 1st March 2012 and 23rd February 2022
I thought I'd post details of what I did to repair one of the HDMI ports on my BV7-40 in case anyone else experiences the same problem...
A while ago I started having problems with one of the HDMI inputs - I would sometimes get a green picture from my BM5 and having swapped cables around I had narrowed this down to a physical problem with port D as usually moving the HDMI plug a little would restore the correct picture but it was not always easy to find a position that would maintain this once I'd let go of the plug. I'd been putting off investigating any further primarily as this would involve removing the TV from it's wall bracket and these things are not exactly light, but last night no amount of reseating the cable would result in a correct picture so this evening I decided see if I could determine the problem.
Looking at the socket closely showed that three of the pins were shorter than they should be - initially I was concerned that they had broken off, but under the microscope it was clear that they were still intact but had been pushed back into the casing of the socket.
.
Having removed the video engine PCB the problem can also be seen from the rear of the HDMI connector
I managed to improve the situation a little, by gently pushing the pins forward from the rear of the connector with a small screwdriver, but it was clear that to push them far enough I needed to be pushing them from higher up inside the connector, so I devised a tool for doing this by bending a red spade crimp in a vice to form a 'hook' on the end and then pushing a small screwdriver into the crimp.
By inserting this up into the rear of the HDMI connector I was able to push the pins fully back into place
The end result... port now looks like it should and is working perfectly
I also put a couple of drops of threadlock on the rear of the port (where I had been inserting the tool) in order to try and discourage any further movement of the pins and a repeat of the problem.
Martin.