20 Most Recent Sony MegaStorage CDP-CX355 300-Disc CD Changer Questions & Answers

I suggest getting the repair manual from Sony. I did years ago and it was the best move I ever made.
Worked with electronics both as a hobby and in the Air Force and nothing beats working with a manual. With the Sony CD changer you need it to even get at the innards to begin repair. I’d try and help you further but I have neither the unit or manual any longer
Good luck!!

Sony MegaStorage... | Answered on Dec 21, 2019

Something must be jammed so a trip to a Technician will resolve that. This is one of the reason I never buy changers of any kind because over the years I have had to fix so many cartridge, platter and other changers that are all designed poorly enough to make the 90 day period but not last too much longer. The Sony ES models are the best but they were big money back then- I have a broken one in my shop now.

Sony MegaStorage... | Answered on Jul 24, 2017

Could be some dust or debris in the unit. Also be careful that you are not putting fingermarks near the hole section of each CD you put in, as the CD plays from the centre out.

Sony MegaStorage... | Answered on Jul 04, 2017

Do the lights come on, on the front?

Sony MegaStorage... | Answered on Jan 06, 2017

Maybe Sony can explain if you inquire.

Sony MegaStorage... | Answered on Oct 14, 2016

You have to remove the cabinet to expose the inner workings. Once inside, you should be able to see the stuck CD. Be careful to avoid damaging any parts of the player mechanism as you work the CD back into the carriage. You may find that once the CD is back in place normal operation resumes.

Sony MegaStorage... | Answered on Sep 04, 2016

Hi There are many things that can cause your problem, I can tell you the most likely ones, but I recommend you don't take the unit apart, as the mech. in a 300 disk changer is complicated & delicate, and you may just cost yourself alot more money than getting it repaired. The symptoms you sescribe can be caused by failing laser pickup, dirty laser lense (especially if you've done home renvations with drywall), split drive gear that moves the laser on the sled rails, or even a hair or piece of dirt in the gear teeth of that same gear. The unit will play fine, until it hits the tooth where the debris are, then it skips, or jumps back a bit and starts again until it hits the same spot. Also..badly scratched or finger printed disks will cause that, but that is the first thing most people check. I wish it was something you could repair yourself, but my best advise is to take it to a reputable repair shop, and hope it is not a bad laser, as that is a fairly expensive repair. Hope this helps, Good Luck!

Sony MegaStorage... | Answered on Jan 15, 2016

These models often get broken loading parts in front of the pickup assembly. If you could take a good picture of the front of the mech, I may be able to identify what is broken.

Sony MegaStorage... | Answered on Sep 01, 2015

Part is not available. search ebay you might find one for parts.

Sony MegaStorage... | Answered on Aug 25, 2015

The belt in the back of the player under the hood is either broke or has came off the rollers. You will need to take the top off and replace the belt a rubber band will work as a temporary fix till you can order a new belt.

Sony MegaStorage... | Answered on Nov 28, 2014

Maybe the opto sensors around the carousel are dirty or not working, the machine needs to know what position it's at for selecting the right number

Sony MegaStorage... | Answered on Nov 11, 2014

The belts last about 15 years, less depending on usage. Sounds like it's time for a belt replacement. Check out softduds on eBay, he can replace belts and adjust these players, he has lots of experience.

Sony MegaStorage... | Answered on Aug 25, 2014

Sensors on side of carosel not working or a fault on one of the boards

Sony MegaStorage... | Answered on Aug 09, 2014

Not easily. You basically have to take out the turntable and everything above it. Then you have to make sure the gears are aligned properly as you do it. Not a job for the faint-hearted. I would strongly recommend having a pro do it. There's a guy on eBay, softduds, who does this very well and I would recommend him highly. He really knows these units and can calibrate to factory specs, in the process replacing all the belts.

Sony MegaStorage... | Answered on Aug 01, 2014

Get the power supply checked by someone competent

Sony MegaStorage... | Answered on Jul 12, 2014

Not finding what you are looking for?
Sony MegaStorage CDP-CX355 300-Disc CD Changer Logo

118 questions posted

Ask a Question

Usually answered in minutes!

Top Sony Audio Players & Recorders Experts


Level 3 Expert

8597 Answers


Level 3 Expert

5699 Answers

The Knight
The Knight

Level 3 Expert

76204 Answers

Are you a Sony Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

View Most Popular

Sony Audio Players & Recorders

  • Sony Audio Players & Recorders

Most Popular Question

sony cdp cx300 new belts mechanism

  • Audio Players & Recorders