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Question
I have a panasonic 5 CD changer player, 2006 model. It suddenly stopped producing sound but can still show on the small lcd screen the tracks being played or radio playing. The trouble shooting has not worked when i tried it and someone i consulted thought the problem could be some transistor so i wasn't sure whether to believe him thats why i consulted the expert. Please help. Thank you in advance.
Here are the possible causes for no sound when the disc seems to be playing properly:
- Bad DAC (Digital to Analog Converter) - a special IC
- Dead or weak laser diode inside the optical pickup.
- Optical pickup badly out of adjustment.
- Output transistor circuit defective (very rare, however).
I will require testing to determine which is the real problem. Unfortunately, the cost of repair for all these possibilities is often more expensive than just purchasing a new CD player or changer. Sorry for the bad news.
Best wishes in Botswana!
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Answers by Expert:
Cleggsan
Expertise
Audio Design Engineer; systems, loudspeakers, cd/dvd players, etc. I am knowledgeable in all high end audio equipment and installations. MAKE SURE YOU GIVE A MAKE AND MODEL NUMBER AND CAR IF IT IS AN AUTO QUESTION. Note: I am getting some who ask good questions that take a lot of time to research but then the questioner fails to read the answer. Please don't ask questions unless you are seriously looking for an answer. If you find an answer to your question otherwise then let me know with your reply. Thank you.
Experience
Have been associated with audio design, standards, testing and component systems for over 40 years.
Organizations
Life Fellow Member of Audio Engineering Society
Life Senior Member of Institute of Electronic and Electrical Engineers
Publications
Review technical manuscripts for IEEE Spectrum
Write occasionally for high-end audio publications
Education/Credentials
BSEE/MSCS/MBA
Past/Present Clients
Past Employee/advisor to several well known audio products manufacturers
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