| Author |
Message |
jeffslife
Joined: 17 Apr 2010
Posts: 4190
Location: ohio usa
|
| Posted: Wed Oct 13, 2010 8:43 pm Post subject: Badly out of focus blue |
|
|
OK,
here I go again, The blue on my pj is so far out of focus I cant even tell its an H on the H pattern,
adjusting the lens barely does anything. Whats wrong? I understand blue isnt nearly as sharp but even
my old zenith had better focus. Any help is appreciated.
Keeo in mind im a clueless idiot.
_________________
We are ALL job creators !
|
|
| Back to top |
|
 |
MikeEby
Joined: 24 Jun 2007
Posts: 5237
Location: Osceola, Indiana
|
| Posted: Wed Oct 13, 2010 8:46 pm Post subject: |
|
|
First you need to find out if its mechanical or electronic focus problem. If you look into the lense and see if the "H" pattern is in focus. If it doesn't look too bad...Then it could just be a mechanical focus issue.
Mike
_________________
Doing HD since the last century!
|
|
| Back to top |
|
|
jeffslife
Joined: 17 Apr 2010
Posts: 4190
Location: ohio usa
|
| Posted: Wed Oct 13, 2010 8:52 pm Post subject: |
|
|
looking in the lens it is about half as sharp as G or R
_________________
We are ALL job creators !
|
|
| Back to top |
|
|
garyfritz
Joined: 08 Apr 2006
Posts: 12088
Location: Fort Collins, CO
|
| Posted: Wed Oct 13, 2010 9:17 pm Post subject: |
|
|
I assume you've tried to fix it with electronic focus?
If I remember right, the center focus zone controls the whole raster. Try adjusting the center zone and see if that helps.
|
|
| Back to top |
|
|
jeffslife
Joined: 17 Apr 2010
Posts: 4190
Location: ohio usa
|
| Posted: Wed Oct 13, 2010 10:16 pm Post subject: |
|
|
When I go to center zone all that comes up is the numbers there is no pattern on the screen and I cant get one to come up.
I tried looking into the lens but it doesnt seem to transfer to the screen
I know im doing something wrong
I just dont know what
_________________
We are ALL job creators !
|
|
| Back to top |
|
|
jeffslife
Joined: 17 Apr 2010
Posts: 4190
Location: ohio usa
|
| Posted: Wed Oct 13, 2010 10:58 pm Post subject: |
|
|
I turned off the pj then turned it back on and put it back in service mode.
I was able to get the center zone box to come up and make some adjustments
it still aint great
but much better than before,thank you all
_________________
We are ALL job creators !
|
|
| Back to top |
|
|
AFryia
Joined: 09 Mar 2006
Posts: 965
Location: S.E. Michigan VPH-G70Q
|
| Posted: Wed Oct 13, 2010 11:35 pm Post subject: |
|
|
Depending on the source frequency all tubes are automatically defocused. There is a table in the manual showing this.
If you toggle the MG button you should see the text "defocus" in the lower right corner toggle off and on.
A slightly defocused blue is actually a good thing for acheiving proper grayscale. That's a whole other topic in itself.
I wouldn't worry about it seriously. Just try to get the focus for the entire screen somewhat uniform.
_________________
My Volt Blog
|
|
| Back to top |
|
|
jeffslife
Joined: 17 Apr 2010
Posts: 4190
Location: ohio usa
|
| Posted: Wed Oct 13, 2010 11:48 pm Post subject: |
|
|
thanks I feel a little better now.I was thinking I had a major problem
_________________
We are ALL job creators !
|
|
| Back to top |
|
|
cinema mad
Joined: 25 Nov 2009
Posts: 219
|
| Posted: Thu Oct 14, 2010 5:18 am Post subject: |
|
|
Yep The reason behined Blue Defocus is for better Gray scale tracking
but some times you need to defocus the blue even more than the defult setting..
|
|
| Back to top |
|
|
|
|
