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Crumbtrail TV Forums: TV Equipment: TV Repair Forum:
LG 60 inch plasma tv picture messed up

 

 


shelby5041
User

Jul 21, 2017, 1:48 AM

Post #1 of 15 (1428 views)
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LG 60 inch plasma tv picture messed up Can't Post

hi

i have a 60 inch lg plasma

tv powers on fine but after about 15 min the picture/image starts to do funky things...sparkles.....funky neon colors wavy outlines on images....and sometimes picture looks great....it goes bad to good to bad to bad to good etc etc...mostly bad though but its random

but if i put on an empty video input and hit menu osd the menu osd looks great.....but when i have tv on antenna input the picture is all solarized ..sparkles...and if i hit menu the menu osd looks solarized

but then if i again go to an input thats unused and hit menu ..the menu osd looks great....

i checked the voltages coming from ps during the good and bad picture and the voltages are good.. vs=196 va=60 and i get 5v



shelby5041
User

Jul 21, 2017, 1:52 AM

Post #2 of 15 (1425 views)
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Re: [shelby5041] LG 60 inch plasma tv picture messed up [In reply to] Can't Post

note..there are 2 bulged caps that i can see

one is on power supply near output to y but i get good voltages 10v 3300uf

the other one is on z board 100v 150uf

i thought these may have been the issues but i dont believe they do since im getting good voltages to y and z board


jts1957
Veteran


Jul 21, 2017, 2:01 AM

Post #3 of 15 (1423 views)
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Re: [shelby5041] LG 60 inch plasma tv picture messed up [In reply to] Can't Post

Change 'em. Just 4 grins. Smile


-------------------------
Location: Far, Far Away


shelby5041
User

Jul 21, 2017, 12:52 PM

Post #4 of 15 (1416 views)
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Re: [jts1957] LG 60 inch plasma tv picture messed up [In reply to] Can't Post

thank you

i will order the caps...

one note....when i tested the tv 2 days ago it would work great on brighter images but on darker images there were 2 distintive grainy distorted areas...

when i tested yesterday it changed.....the image got really funky looking and then would go to good and then funky and then semi good...random pattern....light and dark images seem to not have same pattern as day before...

and during all of these times the vs and va were to spec


shelby5041
User

Jul 21, 2017, 12:53 PM

Post #5 of 15 (1415 views)
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Re: [shelby5041] LG 60 inch plasma tv picture messed up [In reply to] Can't Post

is there a way to post photos

i dont see any icon to attach photos


jts1957
Veteran


Jul 21, 2017, 4:22 PM

Post #6 of 15 (1412 views)
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Re: [shelby5041] LG 60 inch plasma tv picture messed up [In reply to] Can't Post

https://en.wikipedia.org/...age-sharing_websites


-------------------------
Location: Far, Far Away


shelby5041
User

Aug 13, 2017, 4:35 PM

Post #7 of 15 (1316 views)
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Re: [jts1957] LG 60 inch plasma tv picture messed up [In reply to] Can't Post

update

voltages i took the other day...

vs good
va good
vg good
vsc out of range
vsetup out of range

note:...if i disconnect the power cord from y to control logic board...vsc and vsetup are then good

i replaced the y board....no change in symptoms or voltages

i replaced the logic board...no change in symptoms of voltages

any ideas?


shelby5041
User

Aug 13, 2017, 4:36 PM

Post #8 of 15 (1314 views)
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Re: [shelby5041] LG 60 inch plasma tv picture messed up [In reply to] Can't Post

zbias..good


shelby5041
User

Aug 13, 2017, 4:38 PM

Post #9 of 15 (1312 views)
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Re: [shelby5041] LG 60 inch plasma tv picture messed up [In reply to] Can't Post

model# of tv is LG60PC1D


jts1957
Veteran


Aug 13, 2017, 6:29 PM

Post #10 of 15 (1308 views)
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Re: [shelby5041] LG 60 inch plasma tv picture messed up [In reply to] Can't Post

Twaining Manwel: https://elektrotanya.com/...al.rar/download.html


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Location: Far, Far Away

(This post was edited by jts1957 on Aug 13, 2017, 6:31 PM)


shelby5041
User

Aug 13, 2017, 7:27 PM

Post #11 of 15 (1299 views)
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Re: [jts1957] LG 60 inch plasma tv picture messed up [In reply to] Can't Post

Thanks fore manyule will downlode when kan


shelby5041
User

Aug 14, 2017, 8:06 AM

Post #12 of 15 (1291 views)
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Re: [shelby5041] LG 60 inch plasma tv picture messed up [In reply to] Can't Post

thanks 1957

would anyone know why i would have good vsc and good vsetup voltages without control logic board connected but when connected i get both voltages out of range?


shelby5041
User

Aug 14, 2017, 8:29 AM

Post #13 of 15 (1290 views)
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Re: [jts1957] LG 60 inch plasma tv picture messed up [In reply to] Can't Post

hi 1957

i am a tv technician but i do appreciate the training manual...it is loaded with information...not sure i can understand it but i will try.

are these avail for most tvs on that site?

or was this manual from you?

thanks


jts1957
Veteran


Aug 14, 2017, 6:25 PM

Post #14 of 15 (1271 views)
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Re: [shelby5041] LG 60 inch plasma tv picture messed up [In reply to] Can't Post

That site has what it has. Many are under model, some under chassis/family.


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Location: Far, Far Away


shelby5041
User

Aug 21, 2017, 11:51 AM

Post #15 of 15 (1215 views)
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Re: [jts1957] LG 60 inch plasma tv picture messed up [In reply to] Can't Post

here is a link to video i took of my tv and how its acting


https://www.youtube.com/watch?v=J4bPdD0ZgdM

any ideas?

 
 
 


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