Sony D-EJ611

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

Review

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.

Chipset

• 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

Value/eBay

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.

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