JVC D Series Horizontal Smearing on the Composite Input

[BenM86]

Originally Posted by Alex KL-1

The "all-in-one" TV IC core can perhaps have different internal settings for each input, or simply the composite ones uses the comb filtering and that perhaps are not optimized (unlikely, but...)...
A lot of "perhaps" due to all these programmable IC's and it's features hidden for the users and even technicians; perhaps one bad choice for given model etc...

Difficult to pinpoit any direct culprit.

Originally Posted by vol.2

You should also read this https://docs.google.com/document/d/1...it?usp=sharing

if you haven't before.

Thanks! My particular model is a AV-32D302 with a Hitachi tube. And it uses the TB1253AN jungle chip and supposedly has a 3 line digital comb filter. I assume the comb filter is housed inside the jungle IC? Wonder if the IC has simply wore out.