Today's Message Index:
----------------------
1. 07:45 AM - Flickering C90 Display (Shane Sexton)
2. 07:49 AM - VC button on C90? (Shane Sexton)
3. 11:48 AM - Re: Flickering C90 Display (Matt Dralle)
4. 12:23 PM - Re: VC button on C90? (Matt Dralle)
5. 02:21 PM - Re: Flickering C90 Display (Shane Sexton)
Message 1
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| Subject: | Flickering C90 Display |
--> XDP4000X-List message posted by: "Shane Sexton" <shnsx@comcast.net>
I hope someone can help. I have a c90 faceplate, and the EL backlight will
randomly go light to dark. Could it be the EL strip behind the lcd panel? I
have another unit and faceplate, so the problem lies in this faceplate.
Message 2
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| Subject: | VC button on C90? |
--> XDP4000X-List message posted by: "Shane Sexton" <shnsx@comcast.net>
I have 2 C90's and I notice that the VC button seems to really do nothing at
all. It si supposed to change the sound from warm, deep, spacial, ex..., and
I notice nothing. Keep in mind, I have no external DSP hooked up, so this
should work. Do others seem to make a real difference?
Message 3
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| Subject: | Re: Flickering C90 Display |
--> XDP4000X-List message posted by: Matt Dralle <dralle@matronics.com>
At 07:45 AM 8/20/2006 Sunday, you wrote:
>--> XDP4000X-List message posted by: "Shane Sexton" <shnsx@comcast.net>
>
>I hope someone can help. I have a c90 faceplate, and the EL backlight will
>randomly go light to dark. Could it be the EL strip behind the lcd panel? I
>have another unit and faceplate, so the problem lies in this faceplate.
Hi Shane,
I'm recollecting from the times I've had my C90 faceplate apart that the power
to the EL Backlight is via two small soldered connection standoffs. Seems highly
likely that one or both of these connections has become unsoldered/broken
and simply touching up with the soldering iron would remedy the problem. If you
take this little project on, however, be warned that the connections to the
_LCD_ are extremely delicate and if you mis-handle the display in the least you
will end up with one or more rows of stuck on pixels. Its been a while since
I've had the faceplate apart, so I can't remember if you can check the BL connections
without having to disturb the LCD connections. Maybe.
One last word of caution. When you take the faceplate apart, do it on a large,
cleared off table with a clean white towel spread out. There are a number of
very small parts and springs that will fall out of the faceplate when you pull
it apart and if you're not careful, they will easily become lost since they're
so small. For example, the "Eject" button has a tiny tiny spring that isn't
attached to the button. Boing....
Good luck!
Matt Dralle
Matt G Dralle | Matronics | PO Box 347 | Livermore | CA | 94551
925-606-1001 V | 925-606-6281 F | dralle@matronics.com Email
http://www.matronics.com/ WWW | Featuring Products For Aircraft
Message 4
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| Subject: | Re: VC button on C90? |
--> XDP4000X-List message posted by: Matt Dralle <dralle@matronics.com>
At 07:49 AM 8/20/2006 Sunday, you wrote:
>--> XDP4000X-List message posted by: "Shane Sexton" <shnsx@comcast.net>
>
>I have 2 C90's and I notice that the VC button seems to really do nothing at
>all. It si supposed to change the sound from warm, deep, spacial, ex..., and
>I notice nothing. Keep in mind, I have no external DSP hooked up, so this
>should work. Do others seem to make a real difference?
Can't really comment here. I've mostly always driven XDP-4000x's with my C90.
My recollection of testing the VC on the bench was pretty under whelming though.
Didn't really seem to do much, as you've indicated. I want to say that it
by passes the internal Treble/Bass controls too, so if you've got these turned
up, you might notice more or less impact.
Matt Dralle
Matt G Dralle | Matronics | PO Box 347 | Livermore | CA | 94551
925-606-1001 V | 925-606-6281 F | dralle@matronics.com Email
http://www.matronics.com/ WWW | Featuring Products For Aircraft
Message 5
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| Subject: | Flickering C90 Display |
--> XDP4000X-List message posted by: "Shane Sexton" <shnsx@comcast.net>
Thanks alot for this warning, I'f had a couple face plates apart already to
refurb with new plastics, and boing! lost that little spring on one of them.
I took a spring from a broken CDrom drive and fabricated one very similar. I
did check the connections to the EL strip, and they look fine. I am
wondering if just replacing the EL strip would remedy this problem, I found
a 1"x 5" strip which looks exactly like the one for the C90, but I would
need a 3/4 x 4 one, which seems impossible to find. The parts store.com or
Sony fot the matter won't sell this piece alone, but they do for th 910 and
others, strange. From what I have read, there should be an oscilator
somewhere which controls frequency, inturn actually controls the brightness,
and this has to be in the faceplate because the other one is fine. There is
a white fuse looking thing on the FP board, which is labled "OSC", I wonder
if this is the culprite?
-----Original Message-----
From: owner-xdp4000x-list-server@matronics.com
[mailto:owner-xdp4000x-list-server@matronics.com]On Behalf Of Matt
Dralle
Sent: Sunday, August 20, 2006 2:45 PM
Subject: Re: XDP4000X-List: Flickering C90 Display
--> XDP4000X-List message posted by: Matt Dralle <dralle@matronics.com>
At 07:45 AM 8/20/2006 Sunday, you wrote:
>--> XDP4000X-List message posted by: "Shane Sexton" <shnsx@comcast.net>
>
>I hope someone can help. I have a c90 faceplate, and the EL backlight will
>randomly go light to dark. Could it be the EL strip behind the lcd panel? I
>have another unit and faceplate, so the problem lies in this faceplate.
Hi Shane,
I'm recollecting from the times I've had my C90 faceplate apart that the
power to the EL Backlight is via two small soldered connection standoffs.
Seems highly likely that one or both of these connections has become
unsoldered/broken and simply touching up with the soldering iron would
remedy the problem. If you take this little project on, however, be warned
that the connections to the _LCD_ are extremely delicate and if you
mis-handle the display in the least you will end up with one or more rows of
stuck on pixels. Its been a while since I've had the faceplate apart, so I
can't remember if you can check the BL connections without having to disturb
the LCD connections. Maybe.
One last word of caution. When you take the faceplate apart, do it on a
large, cleared off table with a clean white towel spread out. There are a
number of very small parts and springs that will fall out of the faceplate
when you pull it apart and if you're not careful, they will easily become
lost since they're so small. For example, the "Eject" button has a tiny
tiny spring that isn't attached to the button. Boing....
Good luck!
Matt Dralle
Matt G Dralle | Matronics | PO Box 347 | Livermore | CA | 94551
925-606-1001 V | 925-606-6281 F | dralle@matronics.com Email
http://www.matronics.com/ WWW | Featuring Products For Aircraft
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