Hello

I recently got a hold of Pioneer CLD-D515 unit. There is couple of connectors that I have no idea what they are. Another is 6.3mm female plug with three wires and another is 3.5mm male plug with one wire going to it. Any idea what these connections might be?

Pictures.

https://flickr.com/photos/64230389@N05/sets/72157699484276315

Thanks.

It appears that the previous owner did some kind of mod job but I can’t tell with the pics (some of the writing on the circuit board is hard to read on the first pic and could use a wider angle shot of the second pic to get a better view of the ICs that were used).

In any case, why not ask the previous owner if they recall the purpose of it?

That's pretty odd.

(If I was modding a 515 i would bypass the PALB board, that would increase the picture quality a lot especially on NTSC disks!)

Thanks for the answers. I’ll try to take better pictures. I have talked to previous owner, but the mod was there before him and he knew nothing about it.

I wonder if this was a Jackass attempt to use some type of PA amp or guitar amp?? Or possibly connecting your mic to use for Karaoke

You might be on to something....

Just did a quick search on the chip w/ the labeling of HCF4077BEY and it appears this is meant to be some kind of power amp related IC. In any case, it was a poor attempt at a mod of any kind (I would never have a set of wires exit the player in such a messy fashion and not even label what the plugs do).

So at this point, I would just identify what doesn't appear to be a factory part and then have them carefully removed (including all the jumper wires). The good news; it does appear that the wires were ran out of a pre-existing opening so at least the person who did the mod didn't deface the back panel.

Well that might be the best solution for now. I´ll try to find (or build) AC3 output board and replace the current mess.

Thank you all.

That’s odd..... I guess your machine is missing the AC3-RF output? I thought that all CLD-D515’s came with the jack.

Well not in Europe.

Well... in case this might help, here is my recent posing of my scratch built AC3-RF board (if you haven’t seen it already).

Scratch built AC3-RF board installed in my ProScan, PSLD43

You can probably find the points by looking around inside for labeling or if not you’ll need the schematics for the player.

Thank! I've seen many instructions, but this well detailed.

BTW, does anyone have a spare AC3-RF output board for sale?

There's apparently two versions of it in Europe, one with and one without.