Einleitung
This teardown illustrates how to deconstruct the HP MR Headset (DE). This teardown also identifies some of the components within the HMD, and is open to any edits or suggestions for unidentified elements.
Werkzeuge
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HMD Specs:
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Two high-resolution liquid crystal displays at 1440 x 1440
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2.89” diagonal display size (x2)
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Front hinged display
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Double padded headband and adjustment knob
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Built-in audio out and microphone support through 3.5mm jack
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Single 4.00m/0.60m removable cable with HDMI 2.0 (display) and USB 3.0 (data) for connectivity
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Remove the foam protector from the velcro-type adhesive strip.
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Remove the two eye-rings with a flat head screwdriver.
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Also with a flat head screwdriver, carefully pry apart the outer plastic shell from the HMD
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To remove the next layer of protective plastic, you'll need to remove 16 screws
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1 on each side
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and 14 on the front
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Now that the screws are removed, the next plastic layer can be removed.
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The cable will still be connected to the adjustable head strap. This can be removed easily by prying it off with a flathead screwdriver
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In the bottom left corner of the HMD, you'll find the audio jack and the board attached to it.
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With a flat head screwdriver, gently pry the connector from the headphone jack board. Once the board has been disconnected, it will fall right out.
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Remove four more screws. The bottom left screw will release the audio board support.
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Peel back the lenses at a 45° angle from the bottom up.
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You'll then see two yellow strips held with black protective tape. Peel back the tape with tweezers.
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Also with tweezers, remove the yellow tape over the connection between the PCB and the lenses.
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With the lenses removed, you can begin separating the PCB from whats left of the HMD.
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Remove the four screws to remove the two metal clips on each side of the PCB.
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After removed the PCB, you can see the front camera sensor compartment.
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Remove 4 screws to disassemble the front camera sensor on each side.
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Cameras were not easily identifiable, however, they looked identical to the cameras we found in our Acer MR HMD teardown. Also had similar part numbers to the the Microsoft Surface 3 rear camera.
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The metal cover to the PCB can be easily pried apart with a flat head screwdriver.
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After doing this, the two screws connecting the cable to the PCB is revealed.
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Remove the two screws, then pop off the connector straight up, not at an angle.
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Cypress CYUSB3064-BZXC SuperSpeed USB Bridge Controller
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Cypress CYUSB3304-68LTXI HX3 USB 3.0 Hub
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STMicroelectronics medium-density STM32F103C8 performance line microcontroller.
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The main cable is a USB and HDMI to a proprietary connector.
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Instead of plugging directly into the HMD, the proprietary connector plugs into a receptacle which is attached to an embedded connector (shown on the PCB in steps nine and ten).
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After finding an active cable module within the Acer headset, we were curious as to why the HP headset had no chips on their cable. So we opened up the proprietary connector on the cable (Do not do this. You won't be able to easily put it back together)
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Under the plastic shell, we found a similar Spectra7 cable module similar to that of the Acer Windows HMD
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Spectra7 VR8050 USB 3.0 Cable Equalizer
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Spectra7 HT8181 HDMI 2.0 Cable Equalizer
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19 Kommentare
This is fantastic thank you! Any plans on tearing down the other four MR headsets from Microsoft?
Hi there,
I am wondering if anyone knows the components I have highlighted.
[IMG]http://i63.tinypic.com/2hxsz1f.jpg[/IMG]
[IMG]http://i66.tinypic.com/2mm5zyu.jpg[/IMG]
[IMG]http://i63.tinypic.com/33w8hop.jpg[/IMG]
My HP WMR unit had a power surge and has burnt out most of these components.
A good electrical engineer friend of mine has cast a close eye over all the other components on the board, showing no physical damage (which I know doesn’t mean that they all ok).
I live in hope that I will be able to repair my WMR headset, as I have myself had plenty of experience with SM components.
Just identifying the values of these components is proving to be mighty tricky!
I believe (A) 6 pin “EDVGA” are voltage regulators - SOT23-6?
(B) Transistor? - “NA ID9” ?
Appreciate any help :)
Paul
Any info on the sensor in the center mounted between the lenses?