Do RCA "prison TVs" have a unique chassis number?

[ESigma25]

Originally Posted by dieseljeep

I have a few of these sets, one without DTV tune and three with. AFAIC, they are rather good working sets. I didn't run across one that had limited volume.
I said it before, it is an interesting piece and people question me about it.

I did see something like "Auto Volume Control" in settings that I turned off, so that should hopefully sort the volume issue.

But without knowing if the schematic I have shows me the missing parts I need, I can't have composite video input. I have the PDF of the schematics but I'm not gonna lie, I can't read them worth a damn.

Also, the model number is "J13805CL", and the chassis is "ATC106" as mentioned before.