Has anyone calibrated the camera afterwards.

spider [ol'head]

On Tue, 20 Apr 2010 20:34:03 +0000, sipder wrote:


Has anyone calibrated the camera afterwards.

spider [ol'head]

As a former service tech I can tell you there are no physical settings for
the CCD they are all electronic and any pots that may find have little to
do with it's settings.

To properly calibrate and re-regester the CCD you need three things. 1 a
proper light box and test patterns. 2 the calibration / service computer
or a computer interface with the proper software. and finally 3 Sony's
manual for the correct voltage readings and waveforms.

I forgot to include the 20mhz dual trace scope and fluke VOM meter in my
list of tools.

That is why when those required repair of the main camera functions they
were always returned to Sony it was a lot cheaper.

As well as the procedure being lengthy and involve to the point it was not
economical to service locally. The service computer alone cost over
$500.00 at the time and was not a high demand repair tool since most out
of warranty damaged CCD units meant the recorder was totally hosed and
would cost more than a new one to fix.

Gnack

On Apr 20, 1:34*pm, sipder wrote:
Has anyone calibrated the camera afterwards.

spider [ol'head]

ELECTRONICS:
From memory, the amplitude of linear array CCDs varies over a range of
3:1 amplitude over the product line. Do not know where, if any,
adjustment is made to compensate for that on your system.

PHYSICAL:
optically you'll have to refocus, get the right distance between
lensing and the 'surface' of the CCD and make sure you keep that as a
plane
= centering, distance, and tilt

We used to store data in nonvolatile memory during a 'calibration'
procedure. Might require external system/software to do something
like that

Robert Macy wrote in

oups.com:

On Apr 20, 1:34*pm, sipder wrote:
Has anyone calibrated the camera afterwards.

spider [ol'head]

ELECTRONICS:
From memory, the amplitude of linear array CCDs varies over
a range of 3:1 amplitude over the product line. Do not
know where, if any, adjustment is made to compensate for
that on your system.

PHYSICAL:
optically you'll have to refocus, get the right distance
between lensing and the 'surface' of the CCD and make sure
you keep that as a plane
= centering, distance, and tilt

We used to store data in nonvolatile memory during a
'calibration' procedure. Might require external
system/software to do something like that



Thanks to all who answered.

Got the camera for a "song." When it worked it was fine.
Sometimes
the picture was unclear though always 'a.o.k' when i used
the A/V
input and when playing r/w dvds. I replaced the 'ccd' without
problem
but I noticed the focusing had changed. It can auto-focus
from about
6 inches to about 20 feet . Greater distances require that i
use the
W/T to focus on an object. I have the service manual and it
involves
quite an elaborate procedure. I was hoping someone had a
'quick
and dirty fix' to my focusing problem .

For now I will use the camera as it is, but will try to shim
the 'ccd'
in the future [if life lasts] to see if focusing is better.

Thanks again

spider [ol'head]

p.s.

A guy that can't spell his 'nic' thinks he can fix a
camcorder [LOL]...
My old and decrepit fingers have a mind of their own ...