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  #61  
Old 09-09-2013, 11:10 PM
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TinCanAlley TinCanAlley is offline
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Quote:
Originally Posted by Eric H View Post
Is there a screw in the center of the cap on the inside? If so you probably just loosen that screw and pull out the old wire, reverse process to install.
I haven't removed the cap yet, but if I look closely, the pink lead from the divider isn't all the way forward like the anode. I'm attaching a pic. It's the best one I have of it clean. I can find plenty of pics when it was dirty and you couldn't see through it.

I guess I'll know tomorrow when I ground it and remove it.
Attached Images
File Type: jpg Anode Cap.jpg (24.7 KB, 20 views)
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  #62  
Old 09-10-2013, 09:58 AM
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zeno zeno is offline
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Quote:
Originally Posted by TinCanAlley View Post
I haven't removed the cap yet, but if I look closely, the pink lead from the divider isn't all the way forward like the anode. I'm attaching a pic. It's the best one I have of it clean. I can find plenty of pics when it was dirty and you couldn't see through it.

I guess I'll know tomorrow when I ground it and remove it.
Thats the old style connector. If you have a NOS tripler use
the larger brown one off it. Usually they have a small phillips
clamping the wires down. Thats IF it has 2 holes !

The 103-193 came in at least 2 styles. Fat grey ones & later
plain old black. Dont worry about them unless they have been
changed.

Grounds I assume you checked the terminal strip grounds.

When u attack the jail bars. I think you have a generator.
Hook it up & if it has a staircase pattern ( stripes going from
white to black across the screen) look at the video with the
scope. You will see two lines of a staircase. This shows you
how the levels relate to the pattern. Go to the IF output
( point 38 or C1 on Sams)
first at 7875 cycles & you will see 2 lines of the pix complete
with staircases at apx 1.5 V. This is raw unblanked video
sync & all. Next put the generator on blank raster.
If the bars have been introduced at that point you will
see 10 little bumps, if not nothing but a line between the
horz pulses. Work your way to the right Q203 B, Q203 C,
Q204 B, Q204 E, etc until you see them. The pattern will
get bigger & be blanked but you will see two lines.

One other thing. Odds are this set ran for years with too
much HV. Check the ABL that is off the tripler at R362.
CR223, R359, 360, Q201 etc.

While you are at it get an old book or look on internet for
what the things on the scope are. Sync pulses,
burst, back porch, blacker than black etc. It will help you
a lot.

73 fer now Zeno
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  #63  
Old 09-10-2013, 12:45 PM
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TinCanAlley TinCanAlley is offline
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Quote:
Originally Posted by Eric H View Post
If you still haven't changed the Focus Divider I would start with that.

If it's arcing then it's defective, anything defective in the HV circuits has the potential to put interference on the screen, so start with that then look elsewhere if that doesn't help.
I changed the focus divider, and while it didn't help with the bars or moire, it did give me better focus control and a sharper image.

The wire was just press fit into the anode cap. I'm attaching a couple pics of the wire removed and the cap. There was no crimping or set screw. The farther you insert the wire, the tighter it gets.
Attached Images
File Type: jpg Anode Cap Small (1).jpg (34.6 KB, 7 views)
File Type: jpg Anode Cap Small (2).jpg (30.6 KB, 8 views)
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Pioneer SX-1080, Pioneer PL-115D, Pioneer CT-F9191, Pioneer RG-1, Wollensak 8050A, Akai 4000DS MkII, Pioneer CS-05 & Polk 1.2TL

Denon 5803A, Pioneer DVL-700, Pioneer CT-W603RS, Toshiba HD-A3, D-Link DSM-520, Dish VIP-722, Polk 1.2TL, CSi5, LS/fx, RT-800 and PSW-650
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  #64  
Old 09-10-2013, 12:49 PM
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TinCanAlley TinCanAlley is offline
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Quote:
Originally Posted by zeno View Post
Thats the old style connector. If you have a NOS tripler use
the larger brown one off it. Usually they have a small phillips
clamping the wires down. Thats IF it has 2 holes !

The 103-193 came in at least 2 styles. Fat grey ones & later
plain old black. Dont worry about them unless they have been
changed.

Grounds I assume you checked the terminal strip grounds.

When u attack the jail bars. I think you have a generator.
Hook it up & if it has a staircase pattern ( stripes going from
white to black across the screen) look at the video with the
scope. You will see two lines of a staircase. This shows you
how the levels relate to the pattern. Go to the IF output
( point 38 or C1 on Sams)
first at 7875 cycles & you will see 2 lines of the pix complete
with staircases at apx 1.5 V. This is raw unblanked video
sync & all. Next put the generator on blank raster.
If the bars have been introduced at that point you will
see 10 little bumps, if not nothing but a line between the
horz pulses. Work your way to the right Q203 B, Q203 C,
Q204 B, Q204 E, etc until you see them. The pattern will
get bigger & be blanked but you will see two lines.

One other thing. Odds are this set ran for years with too
much HV. Check the ABL that is off the tripler at R362.
CR223, R359, 360, Q201 etc.

While you are at it get an old book or look on internet for
what the things on the scope are. Sync pulses,
burst, back porch, blacker than black etc. It will help you
a lot.

73 fer now Zeno
When you say check the terminal strip grounds, do you mean check to see if they're soldered to the chassis?

My generator doesn't have the stairs, but I have been wanting to get a newer one. Any suggestions on an inexpensive, but decent one?

The ABL you mentioned I'll take a look. I do have a new Q201 and can get an NOS CR223 (Zener Diode) if need be.
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Pioneer SX-1080, Pioneer PL-115D, Pioneer CT-F9191, Pioneer RG-1, Wollensak 8050A, Akai 4000DS MkII, Pioneer CS-05 & Polk 1.2TL

Denon 5803A, Pioneer DVL-700, Pioneer CT-W603RS, Toshiba HD-A3, D-Link DSM-520, Dish VIP-722, Polk 1.2TL, CSi5, LS/fx, RT-800 and PSW-650
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  #65  
Old 09-10-2013, 01:00 PM
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TinCanAlley TinCanAlley is offline
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When all these problems are fixed, I'm putting this fiber optic sign proudly over the set. Right now it's hanging from the ceiling.
Attached Images
File Type: jpg Zenith Sign Small (3).jpg (29.6 KB, 8 views)
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Denon 5803A, Pioneer DVL-700, Pioneer CT-W603RS, Toshiba HD-A3, D-Link DSM-520, Dish VIP-722, Polk 1.2TL, CSi5, LS/fx, RT-800 and PSW-650
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  #66  
Old 09-10-2013, 01:43 PM
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Username1 Username1 is offline
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From Zeno's post;
"first at 7875 cycles & you will see 2 lines of the pix complete
with staircases at apx 1.5 V. This is raw unblanked video
sync & all. Next put the generator on blank raster.
If the bars have been introduced at that point you will
see 10 little bumps, if not nothing but a line between the
horz pulses.
. Work your way to the right Q203 B, Q203 C,
Q204 B, Q204 E, etc until you see them. The pattern will
get bigger & be blanked but you will see two lines."

Your best bet, starting fresh as you are, is to look at these items as he stated, but your bars will be easier to spot as he said with blank raster however you get it. But pay attention to the stairs, or whatever you have, then go to blank, and you will see the part of the trace that makes up the tv picture, the bars will be in that space.

Can you upload that schematic to some free ftp spot and post a link to it, then just delete it after those interested in this thread get a copy....?
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Last edited by Username1; 09-10-2013 at 01:49 PM.
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  #67  
Old 09-10-2013, 01:58 PM
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TinCanAlley TinCanAlley is offline
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Location: So Cal, CA
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Would this generator work for what I need to do? It seems to also have a horizontal output, so I think that might help with the scoping?

http://www.ebay.com/itm/LEADER-ELECT...item1c35b17803
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Denon 5803A, Pioneer DVL-700, Pioneer CT-W603RS, Toshiba HD-A3, D-Link DSM-520, Dish VIP-722, Polk 1.2TL, CSi5, LS/fx, RT-800 and PSW-650
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  #68  
Old 09-10-2013, 02:36 PM
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zeno zeno is offline
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Quote:
Originally Posted by TinCanAlley View Post
Would this generator work for what I need to do? It seems to also have a horizontal output, so I think that might help with the scoping?

http://www.ebay.com/itm/LEADER-ELECT...item1c35b17803
That would work pissah. Be sure it comes with leads & manual
& a good guaranty.

Read this from Sencore.
http://www.broadcaststore.com/pdf/mo...20-%204053.pdf

Nice sign, had the same one at shop in white. Owner
scooped it up, I grabbed a Chromacolor II wall banner & some other
Zenith relics. Sure wish I took the parts stock, bin after bin of
NOS Zenith. All in dump now

BTW DONT put that scope on the boost or HOT collector unless
it has a 1KV probe. If you like to see fire trucks try it.

73 Zeno
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  #69  
Old 09-10-2013, 03:19 PM
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Username1 Username1 is offline
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All that generator is missing is a button labeled "automatically fix my tv"

Very nice pdf from Sencore about the ntsc signal..... Everyone should have it.....
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