Samsung PN58B650s1fxza clicking

[Gootch46]

Hey there all Hope everyones well, Ok I know this tv has been gone over in the threads a couiple of times and trust me I have read them over and over and am still having issues with this tv . It does the norm clicks when you turn it on, cycles through shuts off then clicks back on, I get NO pictures (sound: havent hooked any source to it yet) I have tried the unplugging of the Y main, does same thing. I have tried the X-main off ,still nothing. Both unplugged, nothing.
I have tried the PSon and the VSon jumped with a resistor, pins 3 & 4 jumped on logic board and lvds cable off, and still nothing. If I unplug power to main/video board with said adjustments made, TV doesnt even come on. I ested the Y-buffer boards didnt seem to show a short there .
ok I have tested the V's on the plugs and will list them . Can someone please help me to see what I am doing wrong here . I am just a hobbyist here and couldnt pass up a free 58" tv. Thank you in advance. Hopefully we can figure this thing out.

Voltages on the plugs
PwB to Y-Main are as follows Panel states (VS 202v) (VA 55v) (VSC -190) (Ve 95 )

VS--- Peaks at 200v then settles at 193v
VS--- Peaks at 200v then also settles at 193v
GND--0v
GND--0V
VCC-- 14.96v (supposed to be 15v)
GND--0v
GND--0v
VA--- Peaks at 56v settles at 53v
VA--- Peaks at 56v settles at 53v

Pwb To X-Main

VS--- 193v (peaks at 202 before drop)
VS--- 193v (peaks at 202 before drop)
GND--0v
GND--0v
Vcc---14.96v

Pwb to Main Board

AcDet-- 4.4v
15v---- 14.94v
GND--- 0v
D5.3--- 5.15v
D5.3--- 5.15v
GND---0v
GND---0v
Vamp--18.02v
GND--- 0v
stby--- 5.15v
VSon-- 3.21v
PSon---3.26v

Pwb to Logic board

VSon---3.216v
PSon---3.26v
GND---0v
GND---0v

The Va test point is 193v
The VS test point is 53v

Hope this Helps or if you need other readings let me know, Thank you in advance for looking into this with me.



The pictures are the exact same tv and were borrowed from MyEvolution . Thank you for those.

[Gootch46]

Re: Samsung PN58B650s1fxza clicking

UPDATE*
Throwing a main board at it, Will let you know the effect. Thanks for the help.

[mmartell]

Re: Samsung PN58B650s1fxza clicking

Try heating the mainboard thoroughly with a hair dryer and see if symptoms change. There is a known fault in the "A" series where a surface mount tantalum cap fails and causes similar problems - don't know if it carried over at to "B" series. Check the board for any NEx AS7 caps and if present solder a 47uf 10v electrolytic across them. Good luck.

[Gootch46]

Re: Samsung PN58B650s1fxza clicking

Thank you for the info!!!! As I was looking acrossboard for the Cap you spoke of I found this Lil spot and took a picture of it. It is located at the far right , top of main board by the screw hole.
I circled it in red on main board.

[Andrew F. Ali]

Re: Samsung PN58B650s1fxza clicking

That doesn't look good...That is your problem right there...If you can replace it that should fix your issue...if not get the new Main Bd as first intended.

[Gootch46]

Re: Samsung PN58B650s1fxza clicking

Yea looks like it, Thanks. I am trying to read numbers off it, can't quite make out the bottom numbers and letters. I am going to try and fix anyway and see what happens,maybe get a working board out of it, Thanks.

[ReeceyBurger123]

Re: Samsung PN58B650s1fxza clicking

Ic numbers:

https://www.google.co.uk/search?q=z1..._AUIBygA&dpr=1

[Gootch46]

Re: Samsung PN58B650s1fxza clicking

Thanks man

[ReeceyBurger123]

Re: Samsung PN58B650s1fxza clicking

Yeah and merry christmas to you as well......

[budm]

Re: Samsung PN58B650s1fxza clicking

Check the resistance between LX pin and GND to see if it shows low resistance (<100 Ohms).

[Andrew F. Ali]

Re: Samsung PN58B650s1fxza clicking

Yeah and merry christmas to you as well......

+1

[ReeceyBurger123]

Re: Samsung PN58B650s1fxza clicking

+1

+1 2 op

[ReeceyBurger123]

Re: Samsung PN58B650s1fxza clicking

Op hopefully we can fix this Tv together and is doesn't catch a flame and burn your place down, please keep us updated

[Gootch46]

Re: Samsung PN58B650s1fxza clicking

yea hopefully we dont get it right to the EDGE and not get it right.......

[ReeceyBurger123]

Re: Samsung PN58B650s1fxza clicking

Ohh no he knows my second name what am I going to do help help, good job Im always on the EDGE of violently snapping

[Gootch46]

Re: Samsung PN58B650s1fxza clicking

Hey kid with your satan references and second names ? I'm here to try and fix a tv not Slap the wet from behind your ears , so if your not here to help then step the F off my posts I neither have the time nor the patience to deal with kids. Thanks so far anyway you've helped people with anything along the way now run off to your room and play.

[mmartell]

Re: Samsung PN58B650s1fxza clicking

[ReeceyBurger123]

Re: Samsung PN58B650s1fxza clicking

Well you made the first smart ass quote towards me when I did nothing wrong on that other thread, Im here to help not argue but you did cause this

[Gootch46]

Re: Samsung PN58B650s1fxza clicking

Installed new main board and TV powers up normal of course without a picture , but all voltages are where they are supposed to be per the panel specs. I am not sure about the sound as I have no source plugged in. What would my next move be? If the picture on these plasmas wasnt so spectacular they wouldnt be worth the weight in donuts. but that is just my opinion.

[Gootch46]

Re: Samsung PN58B650s1fxza clicking

So , do I need a source hooked to this to get an active screen or do you think this main board is bad also? It does have the normal 1 second blink and all the voltages are right where they need to be ? any suggestions? Thanks