So who's bright idea was this cable?

[Gene Pink]

Left and right audio, and composite video terminated by 75 ohms. Common ground connection (WTF?). This is a media player into my AV system, hard drive to old-school stereo/video.

It was quiet for the first week, before the ground connection deteriorated to 0.000001 ohms.

Video buzz in the audio, sucks. What the hell were they thinking?

Gene

 

[pucho812]

Video buzz in the audio, sucks. What the hell were they thinking?

Gene

"can we save a 10th of a penny on this... it all adds up. " Might be what they were thinking.

 

[JohnRoberts]

Left and right audio, and composite video terminated by 75 ohms. Common ground connection (WTF?). This is a media player into my AV system, hard drive to old-school stereo/video.

It was quiet for the first week, before the ground connection deteriorated to 0.000001 ohms.

Video buzz in the audio, sucks. What the hell were they thinking?

Gene

Can you move the 75 ohm termination so the high current isn't flowing in the cable/connector?

JR

 

[Gene Pink]

Can you move the 75 ohm termination so the high current isn't flowing in the cable/connector?

That would mean digging into a VCR, finding it, and having to put in a switch in case I use another video source.

I decided to do the surgery on the offender, ran a hardwired coax out a new hole, soldered onto that ridiculous TRRS jack. All is quiet now.

Gene

 

[JohnRoberts]

like

JR