So I just downloaded the CLD-D703 manual from the LD player manual thread and there's a block diagram that seems to suggest that the CLD-503's composite goes through a 3-line digital comb filter. But after that diagram there's a much more complicated looking diagram for the CLD-703 that shows a line connected to the two composite RCA outputs labeled "DIRECT COMPOSIT" that seems to have no connection to the block labeled "3LINE COMB". I was under the impression that the CLD-D703 was one of those recombined Y/C players, is that true?

Yes, the 703 is re-combined Y/C, same design as the 704.

In theory the player could be modified to output direct composite, right? If so, the result should be an improved picture assuming we then feed it through a modern comb filter (HDTV, scaler, etc).

...but HOW to modify it for direct composite. I'm guessing that is quite a challenge.

What you have to do is grab the composite signal before the IC and performs the (3D filtering/TBC/digitization/DNR) and rebuffer it to the proper peak to peak levels. This actually gives you an analog output but no TBC.

Why not buy a CLD-S201, or S104 that is a completely analog machine which adds analog TBC? Probably better than modifying the 703, you can get these players for $50 or less.

The Signal to Noise ratio is going to be a limiting factor in these players though. Would it be that hard to engineer a circuit that makes the direct composite from the LD player work with a TV? The problem is the composite signal before the TBC is not a 75 Ohm Impedance correct?

Or buy an LD-S2 or HLD-X0.

TLK

According to this thread, all the LD-S2's BNC output does is bypass the character generator. It is still comb filtered then recombined.

http://www.avsforum.com/avs-vb/showthre ... 672&page=9

Kurtis Bahr said:

"Now the LD-S2 has output #2 for both Composite and S-Video and it claims to be a more pure output. It is but the difference is that the video signal bypasses the character generator circuit that adds the on-screen data, all of the video outputs on the LD-S2 are digitized and Y/C separated inside the machine. Removing the character generator circuit does help. I'm trying to get a service manual for the X0 and if I ever do I'll confirm if it is just the character generator bypassed just like the LD-S2. The basic chassis is the same between the S2 and X0 but due to the MUSE capability there are some internal differences."

I remember reading that some time ago, too. Thanks for the reminder.

TLK

The CLD-97 and HLD-X0 have a separate composite D/A conversion. These two are digitally recombined.

But I agree if you really want the best analog look buy a LD-S2 or HLD-X0.

I was thinking of trying this as well.
Does anyone have a schematic for the CLD D703?
Many thanks for any help.Audio section as well if poss

Smiffy