Hi,
I picked up a 50" Samsung Plasma display panel. I found it at my local recycling drop off, where I have found and successfully replaced caps on a Wharfedale LCD TV. I have no experience with plasma.
The unit powers on into stand-by (I here a few clicking sounds like relays, but no picture. (haven't tested sound). It then resumes stand-by after 15mins.
I would like to replace individual components, but not sure which components/boards to focus on. I understand MOSFETS and CAPS on either Y-sustain, buffer or X-board are commonly faulty. But piecing this information from many fragmented posts in different threads can be time consuming and confusing.
Since I found this TV had already been opened, I'm wondering whether some strange soldering points indicate a previous repair attempt? some components look as if they're missing, or perhaps on the other side. Also the revision date of the x-board seems inconsisten with the other boards. Two of the heat sinks on the Power supply board are cold when operating.
Perhaps, this is irrelevent since I would like to get started on testing components. I would appreciate any help with procedures.
I've attached a photo (dimly lit, but with most boards labelled.) I can supply a better photo tomorrow if necessary.
Thank you!
Here are the specifications:
PS50C91HD
YB(UP)
MODEL NO 50" HD W2A GVE YB(UP)
PCB NO. LJ41-05121A
PBA NO. LJ92-01491A
REV R 1.0 07/04/05
YB(LOW)
MODEL NO 50" HD W2A GVE YB(LOW)
REV R 1.0 07/04/05
PCB NO. LJ41-05122A
PBA NO. LJ92-01492A
Y-MAIN (2L)
MODEL NO 50" HD W2 PLUS Y-MAIN (2L)
PCB NO. LJ-41-05120A
PBA NO. LJ92-01490A/B/C/D
REV R 1.3 07/06/04
POWER SUPPLY BOARD
MODEL NO W2A 50 BN44-00162A
REV 1.0
X-MAIN
MODEL NO 50" HD W2 PLUS X-MAIN (2L)
PCB NO. JL41-05118A
PBA NO. LJ92-01489A/B/C/D
REV R 1.3 07/06/19
DRIVER BOARD (?)
MODEL NO BN41-00888C
2007 06 07
BUFFER (F)
MODEL NO 50HD W2A PULS LOGIC BUFFER_F
PCB NO. LF41-04222A
PBA NO. JL92-01404A
REV NO. R1.6 07/06/12
BUFFER - UNKNOWN?
PBA NO. LJ-9201403A
I picked up a 50" Samsung Plasma display panel. I found it at my local recycling drop off, where I have found and successfully replaced caps on a Wharfedale LCD TV. I have no experience with plasma.
The unit powers on into stand-by (I here a few clicking sounds like relays, but no picture. (haven't tested sound). It then resumes stand-by after 15mins.
I would like to replace individual components, but not sure which components/boards to focus on. I understand MOSFETS and CAPS on either Y-sustain, buffer or X-board are commonly faulty. But piecing this information from many fragmented posts in different threads can be time consuming and confusing.
Since I found this TV had already been opened, I'm wondering whether some strange soldering points indicate a previous repair attempt? some components look as if they're missing, or perhaps on the other side. Also the revision date of the x-board seems inconsisten with the other boards. Two of the heat sinks on the Power supply board are cold when operating.
Perhaps, this is irrelevent since I would like to get started on testing components. I would appreciate any help with procedures.
I've attached a photo (dimly lit, but with most boards labelled.) I can supply a better photo tomorrow if necessary.
Thank you!
Here are the specifications:
PS50C91HD
YB(UP)
MODEL NO 50" HD W2A GVE YB(UP)
PCB NO. LJ41-05121A
PBA NO. LJ92-01491A
REV R 1.0 07/04/05
YB(LOW)
MODEL NO 50" HD W2A GVE YB(LOW)
REV R 1.0 07/04/05
PCB NO. LJ41-05122A
PBA NO. LJ92-01492A
Y-MAIN (2L)
MODEL NO 50" HD W2 PLUS Y-MAIN (2L)
PCB NO. LJ-41-05120A
PBA NO. LJ92-01490A/B/C/D
REV R 1.3 07/06/04
POWER SUPPLY BOARD
MODEL NO W2A 50 BN44-00162A
REV 1.0
X-MAIN
MODEL NO 50" HD W2 PLUS X-MAIN (2L)
PCB NO. JL41-05118A
PBA NO. LJ92-01489A/B/C/D
REV R 1.3 07/06/19
DRIVER BOARD (?)
MODEL NO BN41-00888C
2007 06 07
BUFFER (F)
MODEL NO 50HD W2A PULS LOGIC BUFFER_F
PCB NO. LF41-04222A
PBA NO. JL92-01404A
REV NO. R1.6 07/06/12
BUFFER - UNKNOWN?
PBA NO. LJ-9201403A
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