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Author Topic: LCD-3 fazor drivers disassembled  (Read 994 times)

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Drakkard

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LCD-3 fazor drivers disassembled
« on: June 05, 2015, 04:13:36 PM »

I never saw pictures of LCD disassembled. Recently Snorry - one of our Russian famous modders was asked to mod LCD-3 fazors. I think it might be interesting..
Here is the story in Russian - forum.doctorhead.ru/index.php?showtopic=30187&st=0
Does not look good if you ask me... Problems with dimensions and accuracy all around. Reminds me of TDS, heh. He said earlier versions of LCD-2 were better.
There is a lot of pictures that are much self-explanatory, but I can translate it later if anyone interested.
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n3rdling

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Re: LCD-3 fazor drivers disassembled
« Reply #1 on: June 05, 2015, 05:13:44 PM »

So it looks like Audeze is etching their circuit into metalized plastic film.  What disturbs me is their etching pattern: instead of etching the entire useless area (under the magnet) away, they're simply isolating it from the trace.  This is great for them as they don't have to spend much time etching, but they're leaving all that unnecessary mass on the diaphragm.  That probably helps to explain their poor treble performance.  A product with such a high price tag should have more work put into it...this is pretty bush league.  Looks like they don't even bother to wash the chemicals off either.  "State of the art" my ass lol

The other major problem is the way they're making contact with the trace.  That mechanism is made for failure.  The higher the tension/louder the signal, the more stress that contact joint is gonna incur, and it'll eventually break the trace. 

Is this a new unit?  If it isn't, you can't really put much weight into the small dings on the diaphragm as that could just be due to user environment.  That said, a dustcover wouldn't hurt.

The more I see the internals of these modern orthos, the more disappointed I'm becoming. :(

If you talk to the guy, do you think you could ask him to measure the spacer thickness?  Just something I've always been curious about in orthos and can't find any info on.
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smitty1110

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Re: LCD-3 fazor drivers disassembled
« Reply #2 on: June 05, 2015, 07:44:57 PM »

Well, that killed any lingering desire to buy the LCD-3.
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aufmerksam

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Re: LCD-3 fazor drivers disassembled
« Reply #3 on: June 05, 2015, 07:56:26 PM »

Are we sure those are legit LCD-3? I only ask because the diaphragm looks almost too shitty. Didn't Tyll take LCD apart at some point? I looked for photos, and saw a hifi-man diaphragm on IF, but I thought he did the same with an LCD, no? I am not apologizing for Audeze, I did NOT like the LCD-3 when I briefly owned it.
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jerg

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Re: LCD-3 fazor drivers disassembled
« Reply #4 on: June 05, 2015, 08:10:22 PM »

forum.doctorhead.ru/index.php?showtopic=30187&st=0

You sure the bright stripes are the tracing, and not the space between the tracing? It looks like he is shining light through the membrane, so only areas without conductive tracing are brightened.
Edit nvm I see what you mean, a lot of waasted space
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Anaxilus

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Re: LCD-3 fazor drivers disassembled
« Reply #5 on: June 05, 2015, 08:29:20 PM »

forum.doctorhead.ru/index.php?showtopic=30187&st=0

Tyll posted pics of the old pre-fazor LCDs. The ones we have universally said sound better around here. When they function as intended that is.
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briskly

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Re: LCD-3 fazor drivers disassembled
« Reply #6 on: June 05, 2015, 09:48:36 PM »

Where would that be? He tore apart an HE-6 to the driver for the Audeze review, but left the LCDs mostly whole.

One of the things they brought up was the change in damping material, from foam and felt layers (was this just the early version 3?) to a papery damping behind the driver. It looks the same as the rear of the LCD-X and Fazored LCD-2.
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Drakkard

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Re: LCD-3 fazor drivers disassembled
« Reply #7 on: June 05, 2015, 10:38:52 PM »

Is this a new unit?  If it isn't, you can't really put much weight into the small dings on the diaphragm as that could just be due to user environment.  That said, a dustcover wouldn't hurt.
Not exactly sure what you mean, but if you are referring to the pictures where some junk is marked on the diaphragm - its not outside, it is between the layers. So it got there at the factory..
Important note - as you can see on the last photos - it is almost impossible to disassemble without damaging the diaphragm. Seems it was made intentionally, as Snorry said there wasnt such problems with LCD-2
There is also some viscous substance on the diaphragm. That makes repairing almost impossible - you cant solder to it.
If you talk to the guy, do you think you could ask him to measure the spacer thickness?  Just something I've always been curious about in orthos and can't find any info on.
Sure, I can ask. On our model its 1mm now, I think. We also tried 0.5 and 1.5 - not much of a difference, besides sensitivity.
« Last Edit: June 05, 2015, 11:14:09 PM by Drakkard »
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Drakkard

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Re: LCD-3 fazor drivers disassembled
« Reply #8 on: June 05, 2015, 10:46:51 PM »

Are we sure those are legit LCD-3?
Is there any fake LCD-s around? I never heard of fake planars.. Never saw any other detailed LCD driver photos before as well, so dunno.
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Ringingears

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Re: LCD-3 fazor drivers disassembled
« Reply #9 on: June 06, 2015, 12:06:13 AM »

Tyll posted pics of the old pre-fazor LCDs. The ones we have universally said sound better around here. When they function as intended that is.
Maybe I'll let Bill-p have a go at my LCD-2r2's. Better than having them Fazored.  Rather have a C grade original than an F grade Fazor.
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