View Single Post
Old 10-23-2018, 09:21 AM   #10
Chungalin
Badcaps Veteran
 
Chungalin's Avatar
 
Join Date: Jul 2014
City & State: Menorca
My Country: Spain
Line Voltage: 230V 50Hz
I'm a: Professional Tech
Posts: 315
Default Re: Sony CD player CDP-397 repair, No Disc, fixed

Addendum to original CDP-397 repair: it wasn’t so easy, like almost all repairs. That’s why this, as a job, sucks.

The CD returned two weeks later with even weirder/crazy behavior. When it was able to play a disc I noticed some audio artifacts similar to bad reading or massive jitter. Touching the front board close to IC302 seemed to improve or fix the problem. Upon closer inspection I saw that IC291 had many broken solder joints, because of repeated heating/cooling effect over years of use. It has some sense, because replaced caps were related to this regulator, and working close to that IC worsened solder joints state.
Chungalin is offline   Reply With Quote