Originally Posted by Jeremy Anderson
Okay, I got into playing with the service mode, and I've now completely eliminated the need for the 1dB line level attenuator. The following is for those using component video, and requires that you own The Avia Guide To Home Theater. HDMI/DVI users shouldn't need this, as color decoding is reportedly correct for those inputs. The following are detailed instructions for lining up the color decoder so that blue, green and red are all set to NTSC standards (though PAL users should be able to do this too if they have a PAL version of AVIA).
First, put in the Avia Guide to Home Theater and go to the color bars section. Set the lamp mode on the Z3 to HIGH. If you have a line level attenuator on the Cr component lead, you can take it out of the line. Put up the BLUE COLOR BARS and adjust COLOR and TINT in the user menu while holding the blue filter over your eyes (see Avia's instructions on this for more details). Once you have color and tint lined up, the rest will be done in the service menu. IMPORTANT NOTE: Before you change ANYTHING in the service menu, write down your original values!!!! The defaults are listed in the service manual, but be warned nonetheless.
1. To enter the service menu, press and hold the MENU and INPUT buttons on the projector for 5 seconds. An "S" will appear in the corner of the screen. When the S is on screen, press and hold the SCREEN button on the remote until the service menu appears.
2. Press the SELECT key on the remote until the Group Number changes to 4.
3. Press POINT UP until the Item Number changes to 15.
4. On your DVD player, go to Avia's RED COLOR BARS pattern and look through the red filter.
5. Adjust item 15 with the POINT LEFT and POINT RIGHT buttons until you have red and white at the same level (the saturation section of the screen). Oddly, raising the value actually lowers the level... so to bring red push down, you want to raise this value.
6. Press POINT UP to go to Item 16. Adjust this left and right until you have the HUE portion of the pattern matching while looking through the red filter. You might have to bounce back and forth between items 16 and 15, making adjustments until you can no longer see the boxes blinking on the red color bars pattern.
7. Once you have red lined up, change to Avia's GREEN COLOR BARS pattern and look through the green filter.
8. Press UP until you're on Item 17. Adjust using left and right until green and white are at the same level.
9. Press up to go to Item 18 and adjust the hue portion of the green pattern until that matches. As with red, you may have to ping-pong between 17 and 18 to get both saturation and hue to match up.
10. Once you've done this, change to Avia's COLOR DECODER CHECK (first item in Special Tests). If you've properly adjusted the color decoder with the above steps, the red should match up to the white background at the 0% mark when looking through the red filter (meaning that red is now at the proper level), the green should match at 0% when looking through the green filter, and blue should match at 0% when looking through blue.
11. If you're satisfied that all three colors are at 0%, press the POWER button once to exit the service menu. You can now change your lamp mode back to where it was before.
You should end up with FAR better yellows, and thus far the greens seem improved for me (most notably on football and baseball fields). For reference, here's what I ended up with for settings across the board with a CC20R and CC10Y filter combo in place, starting with POWERFUL mode (slightly modified from ROne's last CC20R/CC10Y settings and compared to my ISF'd RPTV):
Gain R +10
Gain G +3
Gain B -9
Offset R -13
Offset G +5
Offset B +7
Gamma R 0
Gamma G 0
Gamma B 0
Auto Black Stretch Off (this changes black level based on the average picture level, and should always be left off, especially when calibrating contrast/brightness)
Contrast Enhancement Off
Transient Improvement Off
Service menu Items (480p - defaults will differ if you're using 720p/1080i):
Item New Default
15 +13 +10
16 +13 +6
17 +5 +9
18 +2 +7
The caveats: The color decoder values are different for each resolution. In other words, if you have a 720p pattern on screen, the defaults for items 15-18 will be different. The service manual (link posted in thread previously) has the default values for items 15-18 in each display resolution.
Happy tweaking, all! I'm off to spin a couple of DVD's on this thing! I'll report back after I get my CC30R filter and try ROne's optimized settings for that.