My trusty old Pioneer CLD-D515 has developed a fault in that it is refusing to play the digital sound from any of my discs - it outputs analogue sound only.
This means it will no longer play CDs or discs without an analogue soundtrack. No problem though with the video on any disc - both PAL and NTSC.

Any ideas what the cause could be and whether it's repairable?

The CLD-D515 doesn't have a Digital output, I suppose it gets converted to analog and should output on Analog L/R?

Julien

That’s how every player that had Digital Sound did it until they started adding digital outs.

I think he means the player doesn’t use the track at all. This can potentially occur if the grip ring slips but other than that I have no ideas. Since CDs are affected I’d say this isn’t that.

So what does a CD do? Does it play and track and all that and just lacks sound?

Thanks for the replies.
When playing a CD the display shows as the CD playing with track and time details etc but there is no sound output at all.
Same for when playing a LD -unless you select one of of the analogue tracks (where available).
There's definitely something wrong because it's always played CDs and digital tracks on LDs in all the years I've had the machine.

So it still allows you to switch to the Digital track, but it’s just silent?

In that case I would look for failing capacitors in the audio section.

Yes, exactly.
Thanks for your help Signofzeta. Can you post a link to the section you are suggesting please?

You would need to buy the Service Manual (we don't have it yet) online and check the schematics around the audio section with a tester for a broken path.

Julien

The 315 should be close enough, aside from lack of PAL analogue audio support and dual-side play. It'll almost certainly be based on the same motherboard, so everything about digital audio should be identical.

https://manuals.lddb.com/LD_Players/Pioneer/CLD/CLD-S315/CLD-S315-EN-Service%20Manual.pdf

I think based on the front panel design, the 515 might be a derivative of the 504. Here is the link for the service manual...

https://manuals.lddb.com/LD_Players/Pioneer/CLD/CLD-D504/CLD-D504-EN-Service-Manual_Scan.pdf

Also, are you using the Scart or RCA outputs to connect the player to your system?

Thanks for all your help.
I've tried swapping the Scart for the RCA connections but it makes no difference - still analogue tracks only.

I've found a copy of the service manual for the CLD-D515, ref RRV1603. Happy to upload it if that helps.
It's quite a slim manual though and says to "refer to the service manual RRV1356"
Does the RRV1356 ref help at all?

There is a service manual with parts lists, schematics, and adjustment procedure. The other is a service guide with block diagrams and descriptions of how the player works. You need schematics to check power to the D/A’s and output op amps or open signal lines.

RRV1603 is the AC3 addendum - There is a guide for the S104 (RRV1188) that I'd like to get someday if it ever pops up somewhere, but I don't know if there's an equivalent for the 504/515/604.