A DVD player at stake!

It was time to bid goodbye to an old Phillips DVD player.

[**Link to the instructable I published on this.**](https://www.instructables.com/id/Parts-to-Salvage-From-a-DVDCD-Player/)

Removed the AC main cable and unscrewed the enclosure.

⚠️ Ensured that all the capacitors are safely discharged by touching them with a metal part. ⚠️

Then I looked for its service manual (thankfully I found it here) and followed the part removal procedure.

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Took things apart one be one.

1. The power supply

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The power supply is perhaps the best thing to salvage from such a device and is totally worth the time.

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From the service manual I got to know the voltages at the different connector pins. I was pleased to find 5V, 12V and -12V all regulated DC outputs from a single board.

I could use this to run opamps that need voltages at both polarities and well I needn’t explain the potential use of a 5V supply :P

And all this was present as a single isolated board.

From the diagram below it was quite obvious that this is a well designed and stable supply.

Update : 20/5/2019 : After lying around for a while, I finally made use of the power supply board to charge lead acid batteries. To bring down the voltage to the required levels I used a regular buck converter module.

2. The Front Board

The front board consists of the following parts:

IR module
switches
LED display
Mic with amplifier

Looks like those standard 3 pin IR LEDs out there.

The display uses a ET6202 LED driver which appears to have been used with an arduino too (check this). So this looks like a good catch!

This board had a mic, an 8.3K potentiometer ( measured it using a multimeter), and an amplifer. The pot is used to adjust the gain of the mic.

3. The DVD tray

3.1 Motors + a wonderful switch

[enter video here]

3.2 Lens, Neodymium magnets and more…

Took a closer look and found that the optical reader was from SONY.

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Scraped off the white drop of glue (visible in the above images) and removed the outer cover.

https://youtu.be/hNsJkvjbRbk

Yoohoo…Time to play around with it…

The above shown are images I took with the lens supplementing my phone camera. The fingerprint ridges look so deep!!

The lens when held above a phone’s screen, the pixels are perfectly visible. The different combination of RGB LEDs that create wonderful images on screen. Beautiful.