PN60E530A3F no picture, sound, getting 10v on VS, 0 VA

[jaysonfp]

TV gets boot sound but no picture. Light in front flashes 6 times, then it gets the boot sound.

I had replaced y buffer, and y main. That did not get the panel to do get a picture, or boot. Suspecting power supply, main logic, or main control board.


I tested the connector from PSU to main controller board. The pins are getting the right readings for standby (5v), and the pins for that connector are reading the right voltage indicated on the board such as the 15v, or 5volts etc.

VS is reading 10v, VA 0v. Well below what it states in the tv.

[dick_barton]

Re: PN60E530A3F no picture, sound, getting 10v on VS, 0 VA

There should be a white sticker on the back of the panel giving the voltages for the set similar to the attachment.

Some photo's of your boards and showing interconnection would be useful.

With the set powered off check the VA resistance to see if there's a short circuit to chassis.

Have a read through these posts. https://www.badcaps.net/forum/showth...ht=PN60E530A3F

[tvtimmy]

Re: PN60E530A3F no picture, sound, getting 10v on VS, 0 VA

Try running the test patterns. The E series is plagued with mainboard problems.

[jaysonfp]

Re: PN60E530A3F no picture, sound, getting 10v on VS, 0 VA

There should be a white sticker on the back of the panel giving the voltages for the set similar to the attachment.

Some photo's of your boards and showing interconnection would be useful.

With the set powered off check the VA resistance to see if there's a short circuit to chassis.

Have a read through these posts. https://www.badcaps.net/forum/showth...ht=PN60E530A3F

Thank you Dick tomorrow I will post pictures, I apologize if I lacked any information. I ended up doing a few things.

To test if the power supply is working I had to jump the power supply to PS-ON and Ground.

I tested VS at that point with X board and Y board disconnected to power.

VS tested at 211v VA tested at 57v which were the right specs attached to the tv.

I am thinking it is either the logic, or the main board so far.

[jaysonfp]

Re: PN60E530A3F no picture, sound, getting 10v on VS, 0 VA

Try running the test patterns. The E series is plagued with mainboard problems.

Right now the tv is not turning on at all. I did jumper 3-4 on the logic board with all cables connected as normal. There were no test patterns showing at this moment.

[dick_barton]

Re: PN60E530A3F no picture, sound, getting 10v on VS, 0 VA

So testing the power supply with X & Y boards disconnected brought up VS and VA to their correct voltages.

There looks like a short circuit on one of these boards so with the power to the set still off and the X & Y boards still disconnected, use your meter set to ohms and measure the VA & VS points on each board to chassis and report the resistance shown on the meter for each board.

[jaysonfp]

Re: PN60E530A3F no picture, sound, getting 10v on VS, 0 VA

So testing the power supply with X & Y boards disconnected brought up VS and VA to their correct voltages.

There looks like a short circuit on one of these boards so with the power to the set still off and the X & Y boards still disconnected, use your meter set to ohms and measure the VA & VS points on each board to chassis and report the resistance shown on the meter for each board.

Left power on, and disconnected power to x n y board.

on the 200k settings of the ohmeter the results were the following:

60k for vs
52k for VA

[dick_barton]

Re: PN60E530A3F no picture, sound, getting 10v on VS, 0 VA

I tested VS at that point with X board and Y board disconnected to power.

So VS and VA were at the correct voltages with the power supply connected to the Xsus but disconnected from the Ysus. Have I read that right?

If that is the case then you have a fault on the Ysus board or with the Ybuffers.

[brucetv]

Re: PN60E530A3F no picture, sound, getting 10v on VS, 0 VA

Observe the led blink rate with everything connected on the main logic control board. Is it blinking every second or every 6 seconds? If it's 6 seconds try unplugging the cable from the YMain board coming from the Zsus board and also the ribbon cable on the YMain. Turn it on and observe blink rate. If it's every second you have a problem with your YMain or buffer boards. Pull the boards and check for shorts on both the YMain and the buffer boards. Check C5046 C5162 C5160 and look for cracks in U5014 on the YMain which are common faults on this board. Make sure when you buy a used YMain board to check for shorts BEFORE you install it because there are a lot of Ebay sellers selling bad boards.

[jaysonfp]

Re: PN60E530A3F no picture, sound, getting 10v on VS, 0 VA

So VS and VA were at the correct voltages with the power supply connected to the Xsus but disconnected from the Ysus. Have I read that right?

If that is the case then you have a fault on the Ysus board or with the Ybuffers.

Initially I suspected power supply but upon jumping the power supply board it actually ruled it out since the right voltages were read.

With power on, with either logic cable being removed from either x or y the same readings of 10 v on vs, and 0 va were read. It can't be both boards at this point.

This lets me know it is the logic main, or perhaps the main board.

[jaysonfp]

Re: PN60E530A3F no picture, sound, getting 10v on VS, 0 VA

Observe the led blink rate with everything connected on the main logic control board. Is it blinking every second or every 6 seconds? If it's 6 seconds try unplugging the cable from the YMain board coming from the Zsus board and also the ribbon cable on the YMain. Turn it on and observe blink rate. If it's every second you have a problem with your YMain or buffer boards. Pull the boards and check for shorts on both the YMain and the buffer boards. Check C5046 C5162 C5160 and look for cracks in U5014 on the YMain which are common faults on this board. Make sure when you buy a used YMain board to check for shorts BEFORE you install it because there are a lot of Ebay sellers selling bad boards.

Not blinking at all, read my previous post. I did get a replacement y board and buffer same issue. It appears to be main logic.

[dick_barton]

Re: PN60E530A3F no picture, sound, getting 10v on VS, 0 VA

I’m not had much to do with plasma sets but I believe that you can eliminate any problem with the mainboard by disconnecting the ribbon going from it to the control board and jump Pin 3 & 4 on the control board. A test pattern should appear as suggested in an earlier post. If the test pattern fails to display then before you do anything else check VA & VS voltages.

Should they be low I would consider retesting the power supply as you did in an earlier post but use 2 off 100W lamps in series connected between VS and ground. The lamps should light.

It could well be that the VS line cannot provide the full current needed by the set and is going into shutdown. Just my thoughts.

[jaysonfp]

Re: PN60E530A3F no picture, sound, getting 10v on VS, 0 VA

I'm not had much to do with plasma sets but I believe that you can eliminate any problem with the mainboard by disconnecting the ribbon going from it to the control board and jump Pin 3 & 4 on the control board. A test pattern should appear as suggested in an earlier post. If the test pattern fails to display then before you do anything else check VA & VS voltages.

Should they be low I would consider retesting the power supply as you did in an earlier post but use 2 off 100W lamps in series connected between VS and ground. The lamps should light.

It could well be that the VS line cannot provide the full current needed by the set and is going into shutdown. Just my thoughts.

So when I looked at the plasma manual for servicing this was the power on sequence:

1. 5V STBY SMPS to Main
2. PS_ON
3. PS_ON
4. VS_ON
Main to SMPS (all Low Voltages on) SMPS thru X-Board to Logic Board Logic Board thru X-Board to SMPS (VS & VA voltages turned on)


Next the 4. The same PS ON signal, (3.3V- 0V) is sent from the SMPS
CN804 connector to the X- Buffer Board and down to the Logic Buffer Boards to the Logic Board.
5. When the Logic Board sees the PS ON command it sends The VS_ON command that then returns from the Logic Board back thru this same pathway turning on the VS Sustain & VA Address
on the SMPS.
6. SMPS then sends VS Sustain Voltage through the same CN804 connector thru the X-Buffer
Board up and out to the X/Y Main
& the VA Address Voltage through the X-
Buffer Board down to the Logic Buffer Boards for their operating Address supply.


So with all cables connected we are getting standby voltage to main just fine to main board. All the pins voltages per the board are also fine as well such as 3.5v, and 15v.

So if the logic board does not see the ps-on command, we are not going to be able to get the VS_ON command at all. After jumping the PS-On command manually it appears to be getting the right vs, and va voltages.

[dick_barton]

Re: PN60E530A3F no picture, sound, getting 10v on VS, 0 VA

So when I looked at the plasma manual for servicing this was the power on sequence:

What manual are you referring to?

So if the logic board does not see the ps-on command, we are not going to be able to get the VS_ON command at all. After jumping the PS-On command manually it appears to be getting the right vs, and va voltages.

So if you manually jump PS_ON all the voltages including VA & VS are right; so does the set run?

[jaysonfp]

Re: PN60E530A3F no picture, sound, getting 10v on VS, 0 VA

What manual are you referring to?

File name is samsung_2012_tv_and_certification_course.pdf


So if you manually jump PS_ON all the voltages including VA & VS are right; so does the set run?

I had to since at first I thought it was the power supply. Standby was getting the right voltage, and so were the rest of the pins going to from power supply board to main control board. Manual says to disconnect power to X and Y prior to jumping the power supply if I am not mistaken, to prevent damaging boards. The Y main in this tv connects to the X via a cable. The x connects to the power supply board via another cable.

Just got a notification that my replacement logic has arrived so lets see what happens when I replace it.

[jaysonfp]

Re: PN60E530A3F no picture, sound, getting 10v on VS, 0 VA

What manual are you referring to?


So if you manually jump PS_ON all the voltages including VA & VS are right; so does the set run?

Dick I made some progress. The main logic was bad, the new logic's led turned on instantly, and now I was able to turn on the tv but the image is having issues. I will give you great detail about what has taken place since then.

Once the main logic was replaced the tv still had no image. The light was blinking very slow with everything connected, and the voltages weren't right.
I took out the ribbon cable from the y-main that goes into the main logic, and the led in the main logic instantly started blinking normal at the rate of once per second. The voltages for VS, VA, VS and etc were in normal range.

I had replaced the Y-main, and the Y-buffer boards with ebay parts. So my quest was to determine if the issue was the Y-Main or the Y buffer boards. Maybe in the process of storing parts I might have mixed up my Y lower buffer boards with the good and the bad. I ended up swapping the Y lower with the other one I had stored and the TV booted up just fine. The only thing is that there are black lines horizon and vertical. The voltages are all running fine.

Here are the images with the tv with and without source. There

https://ibb.co/x2TgmPc
https://ibb.co/9pp7ysX
https://ibb.co/0XMsSrw
https://ibb.co/jDwc2kx

At this point is hard to tell what is causing this.

[dick_barton]

Re: PN60E530A3F no picture, sound, getting 10v on VS, 0 VA

The black horizontal bands look as though the Ybuffer cables may not be cleanly connected at those points ie the panel ribbon cables that connect the panel to the buffer board at the position of the black bands.
Take them out and carefully and check there is no damage to the contacts at the ends of the cables using a magnifying glass if possible and re-insert carefully.

It's always best to add your pictures to your post for people at a later date to see.

[jaysonfp]

Re: PN60E530A3F no picture, sound, getting 10v on VS, 0 VA

The black horizontal bands look as though the Ybuffer cables may not be cleanly connected at those points ie the panel ribbon cables that connect the panel to the buffer board at the position of the black bands.
Take them out and carefully and check there is no damage to the contacts at the ends of the cables using a magnifying glass if possible and re-insert carefully.

It's always best to add your pictures to your post for people at a later date to see.

Dick what about the vertical line you see there. I felt they were inserted all the way but I will take your advice and come back.

[jaysonfp]

Re: PN60E530A3F no picture, sound, getting 10v on VS, 0 VA

The black horizontal bands look as though the Ybuffer cables may not be cleanly connected at those points ie the panel ribbon cables that connect the panel to the buffer board at the position of the black bands.
Take them out and carefully and check there is no damage to the contacts at the ends of the cables using a magnifying glass if possible and re-insert carefully.

It's always best to add your pictures to your post for people at a later date to see.

Also, if I seat the cables and is still like this could it be buffer boards or the y board being bad too?

[jaysonfp]

Re: PN60E530A3F no picture, sound, getting 10v on VS, 0 VA

The black horizontal bands look as though the Ybuffer cables may not be cleanly connected at those points ie the panel ribbon cables that connect the panel to the buffer board at the position of the black bands.
Take them out and carefully and check there is no damage to the contacts at the ends of the cables using a magnifying glass if possible and re-insert carefully.

It's always best to add your pictures to your post for people at a later date to see.

I had to adjust the screws in the y buffers and inserted them alll the way as far in and straight and the horizontal lines are gone but it appears the vertical line is still there. What do you suggest?