Re: Pioneer Dvr-320 fuzzy tuner image



Richard Crowley wrote:

connection layout:
aerial -----> sony vcr vhs ----> pioneer ---> tv sony
pioneer out (scart - rgb) ---> tv sony (scart - rgb)
sony vcr vhs out (scart - rgb) ---> pioneer in (scart - rgb)

So what I don't see there is where you took your reference
monitor ("tv sony"?) and looked at the signal directly out
of the tuner ("sony vcr vhs"?) to see what the picture looks
like at that point. Systematic differential diagnosis techniques
suggests looking at the signal at each step to see where it goes
wrong.

RGB usually going to look better than composite (or even
Y/C) But the chain is only as good as the weakest link.
You don't seem to have identified your weakest link yet.

I'll make it a little more detailed:

The aerial goes into the "tv input" of the Sony vhs vcr; from there it goes straight into the Pioneer Dvr-320; from there the aerial goes into the tv (daisy-chained).

The Sony vcr and the Pioneer dvr-320 are separately connected to the sony tv via 2 separates scart cables (using rgb).

The picture looks slightly softened and suffers of comb filter's artifacts only if I use the pioneer as a tv recorder.
Looking the picture coming from the sony vcr or directly on the tv OR playing a commercial dvd on the Pioneer the picture is PERFECT.
And it's just perfect even if I record something on the pioneer using the scart as a source (but only in rgb mode - composite or y/c exhibit the same softening behaviour).

In a few words it seems as the Pioneer has a built-in kind of filter that is active only on the aerial-composite-y/c inputs, filter that softens the image too much and add comb artifacts (ugly ones).

Is this reasonable?
.