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noackm
Joined: 16 Jul 2007
Posts: 25
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| Posted: Sat Apr 05, 2008 5:47 pm Post subject: G70 properly mechanical setup done, now what? |
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Personally i think i have now a proper mechanical setup.
Now whats coming up now? Watching grahams Setup dvd the next step is a proper setup of the raster. on the dvd it is done (as far as i understand grahams speaking  ) with pin, size and zone...but this is 1292 and not a G70.
So my question is, do i also use Cent as described in the handbook? And second do i have to move the pj (vertically and horizontally)after setting up the raster to get the crosshatch in the middle of the screen?
Michael
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AFryia
Joined: 09 Mar 2006
Posts: 965
Location: S.E. Michigan VPH-G70Q
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| Posted: Sat Apr 05, 2008 6:19 pm Post subject: |
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Pin, Zone are jumping ahead a couple steps. These are for setting up geometry. Zone is for fine tuning so resist using it till the very end.
The very first time it is recommended you setup starting with P2 internal oscillator. Then you can copy these to the other memory blocks and touch up as you add input sources.
If your PJ is 100% original I would reset to Factory Data and reset all Zone(s) to 128 (neutral) Pin, Skew, Key, and Bow will be somewhat close.
Then in Service Mode you center the raster on each tube with Cent and Size.
Yes, after the patterns are centered tilt the PJ to center horizontally. You also will need to run a couple iterations of lens flap (scheimpflug) and Blue Red toe (left/right tube aim). As you adjust the lens flap it will shift the pattern because of the optics, it is still center on the tube face DO NOT! correct electronically. Touch up the PJ tilt and R/B toe and check your lens flap again. It will take a couple iterations at least.
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noackm
Joined: 16 Jul 2007
Posts: 25
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| Posted: Sun Apr 06, 2008 11:29 am Post subject: |
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The Raster is centered on the tube face, the tube toeing seems to be ok now. Should i start now with magnetically focus or with line aligment.
Btw,
Thanks for all the kind help, this stuff is sometimes confusing and use strongly my patience 
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noackm
Joined: 16 Jul 2007
Posts: 25
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| Posted: Sun Apr 06, 2008 7:23 pm Post subject: |
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Now i have done the the magnetic focus and after several iterations i combined and converged the colors. For the first time it looks not so bad.
there are two things left.
First i have some distorsions on the bottom line, looks like not sharp with a shadow.
Second if i put on a extermal signal the picture move too the left, imho too much. The signal is coming from my HTPC with a ATi card and it is 1920 x1080. 50Hz
any suggestions to this points
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AFryia
Joined: 09 Mar 2006
Posts: 965
Location: S.E. Michigan VPH-G70Q
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| Posted: Sun Apr 06, 2008 9:53 pm Post subject: |
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| noackm wrote: | Now i have done the the magnetic focus and after several iterations i combined and converged the colors. For the first time it looks not so bad.
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Did you check astigmatism before MAG focus? If you display the dot pattern and ramp up and down the MG All, the center dots should not move, well very little.
| noackm wrote: |
First i have some distorsions on the bottom line, looks like not sharp with a shadow.
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This could be normal depending on how much raster you are trying to use. If you have exhausted all other controls (pin, pin bal, key, key bal, skew, bow,) it might be time for a little Zone adjustment.
| noackm wrote: | Second if i put on a extermal signal the picture move too the left, imho too much. The signal is coming from my HTPC with a ATi card and it is 1920 x1080. 50Hz
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Your signal is 1080i I assume. 1080p might be too much for the PJ even at 50Hz.
I assume you performed initial registrations using the internal oscillators P2, then P3, and finally P4.
When you input your signal is the preset memory block the same block you performed registration for?
I would expect preset memory #3 or #4 to be called up. The lower displayed number (10-99) is the user memory number. This is the one specific to the input signal and must be converged also. Every new/different scan frequency will use a unique user memory block that needs to be converged.
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noackm
Joined: 16 Jul 2007
Posts: 25
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| Posted: Mon Apr 07, 2008 12:27 pm Post subject: |
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| AFryia wrote: |
Did you check astigmatism before MAG focus? If you display the dot pattern and ramp up and down the MG All, the center dots should not move, well very little. |
I checks Astigmatism, for the first time it should be Ok.
| AFryia wrote: |
This could be normal depending on how much raster you are trying to use. If you have exhausted all other controls (pin, pin bal, key, key bal, skew, bow,) it might be time for a little Zone adjustment. |
Forgot to say that did not any Zone adjustments due to lack of time. This is one step of next weekend or if i have a free evening.  The thing is that in the moment the size of crosshatch is bigger on the top and the bottom as the screen
| AFryia wrote: |
Your signal is 1080i I assume. 1080p might be too much for the PJ even at 50Hz.
I assume you performed initial registrations using the internal oscillators P2, then P3, and finally P4.
When you input your signal is the preset memory block the same block you performed registration for?
I would expect preset memory #3 or #4 to be called up. The lower displayed number (10-99) is the user memory number. This is the one specific to the input signal and must be converged also. Every new/different scan frequency will use a unique user memory block that needs to be converged. |
It is 1080i, what i like to try is the 1080p 48Hz. As far as i know Brian Hampton is running this kind of source (PS3) with his G70
I did only perform initial registration with p2 oscillators, i have to admit that i don't know now for what P3 and P4 Oscillator registrations are. May you explain me this in a few words
If i setup 1080i i receive preset memory 4 /11 and i think 11 stand for user memory?
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AFryia
Joined: 09 Mar 2006
Posts: 965
Location: S.E. Michigan VPH-G70Q
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| Posted: Mon Apr 07, 2008 10:18 pm Post subject: |
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| noackm wrote: |
I did only perform initial registration with p2 oscillators, i have to admit that i don't know now for what P3 and P4 Oscillator registrations are. May you explain me this in a few words
If i setup 1080i i receive preset memory 4 /11 and i think 11 stand for user memory? |
P4 is the internal memory block for 64Khz horizontal X 60Hz vertical scan rate. P2, and P3 are for lower scan rates, see page 106 of the manual.
The closest match to your input signal happens to be P4 (preset memory #4). The first available user memory block is 11.
So with your input signal, preset memory 4 loads and any subseqent change in convergence or setings is saved to user memory 11.
If you input a second signal it may load 4/11 if it closely matches your first. It may load 4/12, 13, maybe 3/15, 2/17 etc. depending on the scan rate and available memory block.
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noackm
Joined: 16 Jul 2007
Posts: 25
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| Posted: Tue Apr 08, 2008 6:24 am Post subject: |
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| AFryia wrote: |
P4 is the internal memory block for 64Khz horizontal X 60Hz vertical scan rate. P2, and P3 are for lower scan rates, see page 106 of the manual.
The closest match to your input signal happens to be P4 (preset memory #4). The first available user memory block is 11.
So with your input signal, preset memory 4 loads and any subseqent change in convergence or setings is saved to user memory 11.
If you input a second signal it may load 4/11 if it closely matches your first. It may load 4/12, 13, maybe 3/15, 2/17 etc. depending on the scan rate and available memory block. |
Now i have understood this memory thing. Next Weekend i have plenty of time and my family is out of the house the hole weekend.
What do you think about external patterns. imho it is the better source as the internal patterns.
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AFryia
Joined: 09 Mar 2006
Posts: 965
Location: S.E. Michigan VPH-G70Q
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| Posted: Tue Apr 08, 2008 11:18 pm Post subject: |
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I setup basic convergence and geometry with the internal patterns P2, P3, and P4. I ignore small errors in geometry and don't apply any Zone adjustment. Actually I also quickly setup P1 and I think P0 so that my HTPC POST screen is legible at VGA scan rates.
Then like you mention I'll run external patterns from my HTPC to fine tune (and apply zone if necessary).
When I have the HTPC test patterns fully converged, I notice the PJ test patterns are off a little. So yes use an external pattern for the final geometry and convergence adjustments.
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noackm
Joined: 16 Jul 2007
Posts: 25
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| Posted: Fri Apr 11, 2008 5:51 am Post subject: |
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Regarding P3, P4 and the others Preset memorys. How do i have to save the settings. Is it pushing the memory button once or is it saving to all (after setting P2 correctly).
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AFryia
Joined: 09 Mar 2006
Posts: 965
Location: S.E. Michigan VPH-G70Q
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| Posted: Sat Apr 12, 2008 3:10 pm Post subject: |
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I don't know why but it is generally accepted that you set up a G70 starting with the internal osc pattern P2.
Then you hold the Memory key for anywhere from 5-20 seconds to save to "all" memories. Now all presets memories have the same settings as P2.
Lets say you now setup P3. You briefly press the memory button to save only to P3. Same for P4, only save P4 settings to P4.
I haven't done it in a while but I believe you can copy preset memory P3 to P4. The reason is that P3 is a closer match to P4 than P2 is. So you're starting point for P4 would be closer using the P3 settings than P2.
For the preset memories do not use zone. Make sure zone is NULL or 128.
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noackm
Joined: 16 Jul 2007
Posts: 25
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| Posted: Mon Apr 14, 2008 11:01 am Post subject: |
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| AFryia wrote: | I don't know why but it is generally accepted that you set up a G70 starting with the internal osc pattern P2.
Then you hold the Memory key for anywhere from 5-20 seconds to save to "all" memories. Now all presets memories have the same settings as P2.
Lets say you now setup P3. You briefly press the memory button to save only to P3. Same for P4, only save P4 settings to P4.
I haven't done it in a while but I believe you can copy preset memory P3 to P4. The reason is that P3 is a closer match to P4 than P2 is. So you're starting point for P4 would be closer using the P3 settings than P2.
For the preset memories do not use zone. Make sure zone is NULL or 128. |
Afryia thanks for all the patience while explaining and the successful help you`ve gave me 
My first setup done by myself is finished for the moment. I still have things to do but i do enjoy now the picture.
Do you have any idea why sometimes the pj changes the memory block from 4/13 to 13/13
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AFryia
Joined: 09 Mar 2006
Posts: 965
Location: S.E. Michigan VPH-G70Q
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| Posted: Wed Apr 16, 2008 12:07 am Post subject: |
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| noackm wrote: |
Do you have any idea why sometimes the pj changes the memory block from 4/13 to 13/13 |
I'm not sure.
I used to experience that when I ran the older firmware (no memory copy function).
Try changing the Frequency Sensitivity. I believe that is applied to RGB sources.
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noackm
Joined: 16 Jul 2007
Posts: 25
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| Posted: Thu Apr 24, 2008 7:09 pm Post subject: |
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| AFryia wrote: |
I'm not sure.
I used to experience that when I ran the older firmware (no memory copy function).
Try changing the Frequency Sensitivity. I believe that is applied to RGB sources. |
I cant even change that. Is there a chance to get newer firmware?
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rabies_70
Joined: 15 Feb 2007
Posts: 1189
Location: Carlsbad, CA
TV/Projector: Sony G70Q
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| Posted: Thu Apr 24, 2008 9:14 pm Post subject: |
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I'm just curious because I thought I heard that upgrading or flashing the firmware can result in a catastrophic failure. Anyone with the skinny know if thats true?
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I am an iconoclast
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AFryia
Joined: 09 Mar 2006
Posts: 965
Location: S.E. Michigan VPH-G70Q
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| Posted: Thu Apr 24, 2008 10:02 pm Post subject: |
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For my firmware change I changed out all the "Y" boards as a matching set.
My understanding you can do the same thing by just changing the appropriate ROM chips.
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noackm
Joined: 16 Jul 2007
Posts: 25
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| Posted: Fri Apr 25, 2008 7:02 am Post subject: |
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Where do i get the Firmware Roms and how do i exchange them. Somebody has done this before?
I have read some statements that it seems not easy to be done
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AFryia
Joined: 09 Mar 2006
Posts: 965
Location: S.E. Michigan VPH-G70Q
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| Posted: Sat Apr 26, 2008 4:31 pm Post subject: |
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| noackm wrote: | Where do i get the Firmware Roms and how do i exchange them. Somebody has done this before?
I have read some statements that it seems not easy to be done |
There were two G70 experts that were able to provide the firmware upgrade. Bruce and Terry come to mind but don't quote me on that.
The change to my understand was as simple as changing 3 or 4 IC chips. They are mounted in sockets so just pull them out.
Or you can do what I did and get your hands an a complete set of "Y" boards.
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