Pioneer PDR-555RW

Hello,

I have a Pioneer PDR-555RW that does not want to load a CD.
The player shows "CD - CD-R - CDRW - CHECK DISC" and that's all.


The error code is:

0255 P6

P6 = The unit does not read the inserted disc and stops. (CHECK DISC display) / TOC READ

84300008

*4 = TOC, PMA read (including SETUP)
30 = TOC area search
00 = -
08 = "Improper A/D value of RFT, RFB"




What I figured out so far:

Having this unit set to the test mode, I have no problems playing a pressed CD. But I am not able to play a CD-R in test mode.
So maybe that is the reason the player is not able to detect the medium?

In another thread, I read about cleaning the TOC Switch S601 but that does not change anything.
According to the service manual, I should check PC651.

Maybe someone has a hint or an idea.




Greetings,
Klaus
 
Last edited:
Hi,

I have recognized an interesting behavior.
Until now, this was the status quo:

Normal Mode:
CD: No TOC READ
CD-R: No TOC READ

Test Mode:
CD: Playable
CD-R: Not playable

I have set the laser power to a minimum and have increased it step by step to test whether a CD-R becomes playable or not.

Setting the laser power to about 50%, the player can perform the TOC READ and play a CD-R.
But it is still not able to complete the TOC READ with a CD.

Setting the laser power to nearly maximum, the player can perform the TOC READ with a CD. After finishing the TOC READ, I can decrease the laser power to about 50%, and the player can play the CD.

So at it seems the player needs to set the laser power to nearly maximum to complete the TOC READ on a normal cd, but it does not require that high laser power to play the CD.


Greetings,
Klaus
 
The laser on that model is optimized for CDR media which makes it easier for it to read that over standard aluminum vapor deposition CDs. What does the eye pattern look like when it does manage to play back a standard CD? You may have a fogged lens on the underside which is very hard to clean. Has this unit been used in a dirty or smoke filled environment?
 
Hi,


sorry for the very very late response and thanks for your answer.
The Eye pattern looks good while playing CDs.


It's only the TOC Read for pressed CDs the player can't perform.
That is only possible if I have set the playback laser power to nearly maximum.


The recorder is a used device but it is very clean in the inside.
 

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