View Full Version : How do I get rid of horizontal lines?
Magnavox300 05-11-2012, 11:32 PM Just finished recapping my 1960 Magnavox.
I just put it all back together and can't get the picture back!
There are about 6 or 7 black lines on a slight diagonal angle,
and I cant really see the picture.
Does the set need alot of time to warm up after new capacitors were installed?
I have had it going for more than one hour and no difference.
I don't want to mess with the fine tuning in the lower back, since the picture was perfect before I took it apart.
Unless maybe the new capacitors changed the tuning?
Anyone have any ideas?
Thanks!
Magnavox300
mstaton 05-12-2012, 12:03 AM Do you have sound? You sure it's not just the horizontal hold adjustment. pics would help
Eric H 05-12-2012, 12:07 AM It sounds like you just need to adjust the Horizontal Hold, if the normal Hold control doesn't have enough range there should be a Horiz Frequency coil somewhere on the chassis that may need tweaked.
Magnavox300 05-12-2012, 12:21 AM Here is a pic.
I tried adjusting the horiz. hold , but nothing.
I will try the Horiz frequency.
Magnavox300 05-12-2012, 12:22 AM Oh and yes, I do have good sound!
mstaton 05-12-2012, 12:26 AM It should do "something' when you turn that control. If it doesn't, you need to go back and check your work in that section. The frequency may be off a tad.
Magnavox300 05-12-2012, 12:40 AM The lines aren't moving at all, they stand still.
I tried the Horiz freq. and if I turned it plus or minus,
the lines would start moving, so I put it back to where it was.
Magnavox300 05-12-2012, 01:29 AM Got it!!!!
Special thanks to mstaton, and Eric H.
I could never have done it without your expertise!!
I went back, and tried turning the Horiz.Freq alot further,
and slowly it started to get less and less lines, 5,4,3,2 then crystal clear!
I will plan on posting some photos of this great set within a couple days.
It's my first set, I could never have completed it without all the help from everyone here at VideoKarma!!
Magnavox300
mstaton 05-12-2012, 01:31 AM Looks nice. Glad to help
snelson903 05-12-2012, 02:50 AM thats it ,now your hooked you will be on the hunt for another. looks great good job !
vts1134 05-12-2012, 06:57 AM Congrats on your first set!
Just curious, does your horizontal hold control still not affect the picture at all?
old_coot88 05-12-2012, 08:01 AM Got it!!!!
Special thanks to mstaton, and Eric H.
I could never have done it without your expertise!!
I went back, and tried turning the Horiz.Freq alot further,
and slowly it started to get less and less lines, 5,4,3,2 then crystal clear!
I will plan on posting some photos of this great set within a couple days.
It's my first set, I could never have completed it without all the help from everyone here at VideoKarma!!
Magnavox300
Great job sir.:rockon: Welcome to the affli.. er, addiction. Just for yukkles, turn the set off for about 5 - 10 seconds and then back on. See if the Horiz is slow locking in or comes on in sync immediately. If slow, the H osc tube is getting a bit tired. It's a quickie way of showing up marginally weak tubes (like vert. out, Hor. out etc.). Handy item to bookmark for future referance.
holmesuser01 05-12-2012, 10:19 AM Which CRT does your set use? I've got a 23" and a 24" Maggie entertainment center very similar to yours. Only thing I've done is replace the big capacitors in the power supply, so far... Picture looks very good...
Magnavox300 05-12-2012, 07:24 PM Congrats on your first set!
Just curious, does your horizontal hold control still not affect the picture at all?
Thanks!
When I first looked at all the capacitors I had to replace, I thought it was too much for me to do!! Now that i finished it, it wasn't hard at all!
It was actually very enjoyable to recap and can't wait to redo another one!
Yes the horizontal hold does affect the picture.
Actually I need to adjust it each time I turn it on.
So maybe I need to replace the tubes like old_koot88 said.
Magnavox300
Magnavox300 05-12-2012, 07:46 PM Which CRT does your set use? I've got a 23" and a 24" Maggie entertainment center very similar to yours. Only thing I've done is replace the big capacitors in the power supply, so far... Picture looks very good...
Hi, mine is a 21" tube. CRT Part # 21DLP4
I was second guessing replacing all the caps, but glad I did anyway, so now I can enjoy it without worrying!!
Magnavox300
DavGoodlin 05-15-2012, 12:46 PM Adjusting horizontal hold is a lost art, especially since the control was usually in the back and not even used since the mid-70's.
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