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CD player skipping - can it be almost unnoticeable ?

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Posted on March 13, 2017 at 08:49:51
horst
Audiophile

Posts: 64
Joined: April 24, 2004
( English isn't my first language, please bear with me ... )

Some weeks ago I replaced the CD mechanism in my CD transport with a new one .

The player is a 47 labs Shigaraki, which is using a cheap Sanyo mechanism that is readily available on Ebay and such .

Since then, I had the odd feeling that the player might be missing parts of some recordings .
As I mostly listen at low volumes, and have changed other components as well during that time, I didn't think much of it and considered it just a minor change in presentation .

But today I listened to an old CD I had recorded myself, and all the tracks would play, yet skip or jump forward just a tiny bit and then continue .
Not as usual, when a faulty CD gets stuck or jumps to the next track, or the mechanism acts up at a certain point during replay .
Just bits of music missing, playing fine otherwise .

Apart from that (possibly imagined) issue, the new mechanism also takes quite a bit longer to read the contend of a CD, and play it after hitting the play button, than the old one .

Which makes me wonder, is even it possible for a CD mechanism to not read small parts of a recording, without being noticeably malfunctioning ?




 

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RE: CD player skipping - can it be almost unnoticeable ?, posted on March 13, 2017 at 09:04:28
oldmkvi
Audiophile

Posts: 6360
Joined: April 12, 2002
The new drive could be faulty, or installed incorrectly, or have a smudge on the lens from the installation.

 

RE: CD player skipping - can it be almost unnoticeable ?, posted on March 13, 2017 at 09:43:30
mlsstl
Audiophile

Posts: 114
Location: Midwest
Joined: September 1, 2015
It could also be an issue of a poorly calibrated laser. Factories do make mistakes, or it could have been bumped around during shipping.

 

If the replacemetn is cheap enough. I would buy another one and try it, posted on March 14, 2017 at 13:27:18
3+4=5
Audiophile

Posts: 402
Location: Midwest
Joined: December 24, 2016
I have swapped laser parts between players.
Some work better than others in a swap.

And yes the player can have small gaps as it tries to correct for poor data reading.

Other things may be the connectors.
Try pulling the multi pin connectors off and reset them back on.

Another problem might be the spindle holding the CD may be too high or too low. Usually it is a simple press fit on the motor, and it may not be at the correct height.
If you still have the old one, check and compare the exact height of the spindle CD rest even a tiny difference could cause the problem. As the CD may be just at the edge of the laser ability to reach it, or too close and bumps it.

 

RE: If the replacemetn is cheap enough. I would buy another one and try it, posted on March 16, 2017 at 07:31:44
horst
Audiophile

Posts: 64
Joined: April 24, 2004
Thanks, good advice !
The joys of DIY ..

 

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