Looking for a Toshiba SD-E802A HDDVD drive

admin · Posted: 12 Aug 2024, 07:29

Mine is probably dead.

Stopped playing HDDVD... then DVD... then recently CD.

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Found in:

If you have a sleeping unit that could be recycled!

Julien

admin · Posted: 13 Aug 2024, 12:41

Since I was doing to research on drive vs. model, here are more data points:

The Microsoft XBox 360 Add-Onis using a different connectivity for the drive ref. SD-S802A.

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3rd generation players are using a different drive ref. DAV-RB722:

Julien

jd213 · Posted: 13 Aug 2024, 15:30

Looks like there might be some potentiometers near the laser, have you tried adjusting them or anything?

admin · Posted: 15 Aug 2024, 17:11

jd213 wrote:

Looks like there might be some potentiometers near the laser, have you tried adjusting them or anything?

I couldn't see anything looking obviously like a potentiometer but I'll give it another look, thanks!

Maybe here (taken from https://www.ifixit.com/Guide/Toshiba+HD-A2+Optical+Lens+Replacement/116887)

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Julien

jd213 · Posted: 15 Aug 2024, 17:36

Right, the ones marked VR1 and VR2. Not sure if there's detailed guides out there for adjusting HD DVD lasers, but they shouldn't be too different from DVD lasers.

admin · Posted: 21 Aug 2024, 15:58

So...

The belt is fine.

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This is the exact optical bloc from https://www.repairfaq.org/sam/cdfaq.htm:

I have the readings as follows:

VR1 = 25.57 kΩ
VR2 = 28.24 kΩ

Should I increase (less current) or decrease (more current) these values?

Julien

jd213 · Posted: 21 Aug 2024, 17:56

Lowering the resistance generally increases the laser power, so I'd make a small adjustment, measure the resistance, see if a disc will read, and repeat.

admin · Posted: 07 Jan 2025, 11:47

jd213 wrote:

Lowering the resistance generally increases the laser power, so I'd make a small adjustment, measure the resistance, see if a disc will read, and repeat.

Finally found a screwdriver tiny enough to turn these resistors!

Adjusted a tiny down:

25.57 => 21.65
28.24 => 21.74

Sadly no difference "Disc is not in DVD format" regardless of CDDA, DVD, HDDVD...

Should I keep trying all kinds of values?

Julien

jd213 · Posted: 07 Jan 2025, 18:50

It might require a certain range, but hard to say without a service manual that details the drive itself (the service manual for the HD-A2 doesn't) or someone with experience repairing these.

Might also be a good idea to check the voltages with a multimeter, maybe a bad component (capacitor or something) on the player is preventing the drive from getting enough power.

Looking for a Toshiba SD-E802A HDDVD drive

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