Sony D-EJ611

CD Walkman

The D-EJ611 was a CD walkman manufactured in approximately 2000 by the Sony Corporation in Malaysia. It was one in a series of virtually similar Walkmans consisting of D-E660, D-EJ610, D-EJ613, D-EJ615, and D-EJ616CK, with main differences being in the accessories supplied with them. They were all based on the CDM-3223EBA CD mechanism and DAX-23E optical pick-up. The unit shown in this article has the following features and specifications.

  • G-Protection with switch
  • Automatic Volume Limiter System (AVLS)
  • Bass Boost
  • Line Output Socket
  • Requires 2 × AA batteries
  • DC input socket
  • Remote Control
  • LCD panel
  • Lock Switch
  • Dimensions: 131 mm × 29 mm × 136 mm
  • Mass: 190-g



This is a basic CD Walkman that has some good advantages going for it. With a pair of alkaline LR6 batteries you can expect approximately 32 hours of operation depending upon the volume level. In this design the digital to analogue conversion uses the 1-bit quartz time-axis control, which very much became the standard in CD Walkmans. The sound quality through the Toshiba TA2120FN headphone amplifier IC is decent providing you use a good pair of headphones.

When I inspected the D-EJ611, I discovered that it has much in common with the D-VJ65 VCD player in that the outside design looks similar, they have the same DAX-23E optical pick-up, and some of the integrated circuits are also the same.


  • Sony CXD3037R
  • Toshiba TB2119F Power Control, Spindle, Sled, Focus, and Tracking Drive
  • TMP88CM22 System Control
  • 3027R (US Model) DSP and D/A Converter
  • 3037R (Except US Model) DSP and D/A Converter
  • Toshiba TA2120FN Headphone Amp
DC Input Socket
G-Protection Switch
LCD and Control Buttons
Remote and Headphone Socket
Volume Control


It’s a lovely CD player that was well designed and manufactured, and consequently they are still sometimes found in pre-used markets. Back in 2000 it was a new iconic look that many people will remember. A broken unit that skips will not be worth anything because parts are difficult to find and very expensive, however a unit in good working order and mint condition together with its accessories could be of value to someone who remembers using it. The following pages of this multi-page article shows the inside electronic engineering.

This Article Continues...

Sony D-EJ611
Electronic Engineering
Optical Laser Mechanism
PCB and Chipset
Battery Compartment