Re: PN60E530A3F no picture, sound, getting 10v on VS, 0 VA
Another line came up for some reason. So after testing the ribbons by leaving the ribbons on and off I determine two ribbons that are the direct the cause of the line. Neither of them look like they are bad at least from the outside. One of the is attached to the logic main, and the other one is attached to the board to the right of the logic main. At this point is it worth replacing the the logic board and the other board....
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Re: PN60E530A3F no picture, sound, getting 10v on VS, 0 VA
You are not far from right in this one. If I had left ribbons unseated properly before with such a small margin of error I am sure it could be. Based on samsungs specifications and training there are 2 possible causes:
bad panel
bad logic board
connections
I would like to believe the logic board is fine since it allowed me to turn the panel on, and I just recently replaced it. I will verify the connections and clean them all out with alcohol....
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Re: PN60E530A3F no picture, sound, getting 10v on VS, 0 VA
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...
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Re: PN60E530A3F no picture, sound, getting 10v on VS, 0 VA
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...
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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:
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....
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Re: PN60E530A3F no picture, sound, getting 10v on VS, 0 VA
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....
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Re: PN60E530A3F no picture, sound, getting 10v on VS, 0 VA
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....
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PN60E530A3F no picture, sound, getting 10v on VS, 0 VA
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...
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