Chosen Solution
My Pioneer BDP-140 has worked flawlessly for around 8 years. However, lately when I insert CD-audio and DVD-video discs it just displays the message “UNK DISC” and refuses to play said discs (the discs do not even spin). Blu-ray discs playback is normal. Some things I already tried with no success: Loaded default settings Firmware reflash (v1.20) Firmware downgrades (v1.17, v1.10 and v1.08) Replaced entire loader assembly Any help would be greatly appreciated.
@hp78 that is a tough one since you already replaced the loader I would assume that the issue must then come from somewhere on the main board. I suggest you start with something like this Flowchart
and go through those. Also, try the service mode and see if that shows you anything unusual. Pioneer BDP 140 Rrv4263