Marantz CD6000 OSE Error

If you are getting the "Error" message whilst playing certain brands of CD-R Discs, then a capacitor modification might help. I understand that this mod is only for when the error message appears whilst playing some recorded CD-R discs.

If you are seeing this message all the time for every disc, then chances are that the motor is going or on the way out. The TOC Reading Followed by Error article might help in that scenario.

Occasionally, some brands of CD-R discs will not play. The CD player tries to scan them for a few seconds, and then displays ERROR on the front display. Sometimes the player will display No Disc and lock up. When that happens, one has to switch OFF the unit and start again.

According to the Marantz Service Bulletin of June 2003, a small number of CD players were unable to play certain CD-R discs. This affected a very small number of CD Players.

The solution was to place a capacitor (10 pF / 50 V) across position 2509 on the HF Amp PCB. However, before you all run to get your soldering irons hot, the following models and later will not require the modification as they already have a capacitor.

SMD components are very difficult to solder so do NOT do this mod if you are not a qualified and experienced engineer. In order to carry out the modification, please refer to the following articles.

• Antex Vintage Soldering Iron
• Standard Capacitor Values

You should always follow the service bulletin and use Marantz authorised parts to keep your CD player working to peak specifications.

This is the HF amp PCB belonging to my Marantz CD6000 OSE model CD6000F/T1B. It is located under the CD Player Transport Mechanism. This means one has to remove the whole mechanism to gain access to the underneath.

The photograph above shows position 2509. Unfortunately, there is nothing there because my CD player is an earlier model. Hence, this one requires the modification.

Essentially, it boils down to the capacitor going across pin 6 and pin 5 of IC 7404 (PC74HCU04D) chip. This chip is an inverting function buffer gate in a DIP package, so it is very easy to work with, for qualifier engineers.

I decided not to use an SMD, but instead use a conventional component. For one thing, SMDs are so small that it would be difficult to solder one without a large magnifying glass and a pair of tweezers.

10 pF is the same as 0.01 nF, and 0.00001 µF, and it just so happens, I had a 10 pF polyester-film capacitor. The capacitor code is 100J, where J indicates 5 % tolerance. I have a great article on capacitor values and codes to help engineers figure out the correct component.

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