Potential new project! Color Admiral!

[zeno]

All I see is the L blue conv is way off. Otherwise it looks pretty normal
for an aged Maggy. On Maggys there is what we called a "Brownulator"
switch. Turn it OFF if its on. It gives the pix an overall brown to it.
Always turn off any auto color schemes while working on a set.
One last thing is ground lugs. Where the PCB's are soldered to the
steel frame resolder them. Can cause strange int problems on most
brands of TV.

73 Zeno
LFOD !

[Yamamaya42]

Originally Posted by zeno

All I see is the L blue conv is way off. Otherwise it looks pretty normal
for an aged Maggy. On Maggys there is what we called a "Brownulator"
switch. Turn it OFF if its on. It gives the pix an overall brown to it.
Always turn off any auto color schemes while working on a set.
One last thing is ground lugs. Where the PCB's are soldered to the
steel frame resolder them. Can cause strange int problems on most
brands of TV.

73 Zeno
LFOD !

I'm aware of the convergence issues, have not really tried to mess wit it yet, cause when I pull the CRT later this summer on a 100+ day to try and fix the cataract, the convergence will be messed up all over again!

[Yamamaya42]

Hopefully the new 6MK8 demod tube will clear up the slightly bleedy red, another symptom is, when color pot is turned up all the way, all color is lost, flashes to greenish tone for a bit, then BW. Backing off, color pops back on strong.

[dieseljeep]

Originally Posted by Yamamaya42

Hopefully the new 6MK8 demod tube will clear up the slightly bleedy red, another symptom is, when color pot is turned up all the way, all color is lost, flashes to greenish tone for a bit, then BW. Backing off, color pops back on strong.

The 6MK8 is a selected 6HS8. I had a GE branded one that had the 6HS8 number sand blasted like GE was famous for, but had the 6MK8 number printed on like the logo.
The last Warwick Sears hybrid used a 5MK8.

[Yamamaya42]

New tubes did not help the color shadow much, it's still there, chroma bandpass may be slightly off alignment, not much I can do about it, as I don't have the rig to adjust it, fine tuning has no effect on the shadow.

V22 must have been weak, ( color killer/burst amp) 6KE8, because when the new one was put in, color intensity levels were MUCH lower then with the old OEM one, I thought this very strange at first, until I found that the color killer pot R10 had been turned up almost past 2/3s past max, turning it way down got strong colors back with the new tube.

As someone said before, this chassis is picky about tubes, especially the 6GH8As it seems. :O

[old_tv_nut]

Can you post a picture of the "color shadow?" I'm not picturing it in my mind.

[Yamamaya42]

Originally Posted by old_tv_nut

Can you post a picture of the "color shadow?" I'm not picturing it in my mind.

I will try to get better examples tonight, but you can see it in the V on his vest, a bleed to the right with reds, its there on all colors, but seen most on red.
http://suzaku.live-evil.org/0610231942.jpg

[old_tv_nut]

What is the source? If it's a VCR, ignore it, as the poor bandwidth of the tape chroma can mask any effects of the TV alignment.

[Yamamaya42]

Source is a Sony DVPSR210P DVD Player, playing videos from blu-ray videos that were converted down to DVD format.

[Yamamaya42]

I just happen to like using Lost in Space because of the loud gaudy outfit colors, and it's period correct for the set!

[Yamamaya42]

pics of color echo

paused DVD lost in space

http://suzaku.live-evil.org/0616232041.jpg

color off
http://suzaku.live-evil.org/0616232042.jpg

pro DVD
Futurama paused
http://suzaku.live-evil.org/0616232047.jpg

http://suzaku.live-evil.org/0616232049.jpg

fine tuning has no effect

[old_tv_nut]

Originally Posted by Yamamaya42

fine tuning has no effect

That indicates it's not due to IF misalignment.
So, it could be a misadjusted 4.5 MHz trap or the color bandpass alignment, etc. - something following the video detector.

[Yamamaya42]

That's what I thought, where I can adjust the 4.5 MHz trap by eye, but as of yet, I don't yet have the tools to adjust the color bandpass alignment, and I'm not foolish enough to try THAT by eye, cause it would only make it worse.

[Yamamaya42]

I have done all I can do with this Maggie pretty much chassis wise, next step would be CRT cataract repair, I'm still not sure what tube it even has yet, as the number is blocked by the x-ray shield, I just know it's a heat removal type, and it's risky with this tube.

All I can say is I like this chassis type the least so far, due to it being so finicky about the tubes you put in it, change any tubes in the color section, and you almost HAVE to go through the color AFC procedure for best results, or keep swapping tubes till you get optimum picture.
Not something I have seen with RCA and clones.

[Yamamaya42]

From everything I've seen, this CRT type has the most risk with cataract removal, due to the RCA type of bonded safety glass and the rectangle shape, hot wire method does not work, like on the green gooey Zenith type, unfortunately heat is one of the few things to get it to let go, but can also cause uneven stress on the tube.
It's not like there has not been a lack of very hot days to leave it out in direct sunlight to warm it up, but most likely to get it off a heatgun will be needed, and there is always risk with that no matter what especially with these rectangle tubes.