My WM-D6C starts playing at high speed, but after a few seconds it slows down to normal speed and continues to do so. When I push stop and play again, everything is fine. But when I stop and wait a minute and then push play, the D6c starts at high speed again and slows down after a few seconds. For sure I replaced the CX20084, but the servo chip is not te cause of this phenomenon. Can someone help me? Thanks in advance!!!