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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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Sony PFM-500A3WU plasma panel
I've got this Sony plasma monitor here that an aquaintance picked up for
free. From what I hear it was dropped, though initial inspection revealed that the glass panel is intact. Powering up the unit results in a quick flash of the screen lighting up then the unit shuts down, blinks the power indicator several times and repeats the cycle. Opened the thing up and found no signs of physical damage but to my dismay the boards along the right edge of the screen with the driver chip blobs on them have two chips on each board with what appears to be craters blown in them. I'm not experienced with plasma screens at all but these boards appear to be directly bonded to the glass panel. Is there any hope of salvaging this unit? Obviously I lack the tools to do it myself but is it even worth looking into having done or would it be best to scrap the thing or sell it on ebay? Seems this model currently retails for around $6k, ouch. |
#2
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"James Sweet" wrote in message news:... I've got this Sony plasma monitor here that an aquaintance picked up for free. From what I hear it was dropped, though initial inspection revealed that the glass panel is intact. Powering up the unit results in a quick flash of the screen lighting up then the unit shuts down, blinks the power indicator several times and repeats the cycle. Opened the thing up and found no signs of physical damage but to my dismay the boards along the right edge of the screen with the driver chip blobs on them have two chips on each board with what appears to be craters blown in them. I'm not experienced with plasma screens at all but these boards appear to be directly bonded to the glass panel. Is there any hope of salvaging this unit? Obviously I lack the tools to do it myself but is it even worth looking into having done or would it be best to scrap the thing or sell it on ebay? Seems this model currently retails for around $6k, ouch. I should add that it blinks service codes 12 and 22. |
#3
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"James Sweet" wrote in message news:... I've got this Sony plasma monitor here that an aquaintance picked up for free. From what I hear it was dropped, though initial inspection revealed that the glass panel is intact. Powering up the unit results in a quick flash of the screen lighting up then the unit shuts down, blinks the power indicator several times and repeats the cycle. Opened the thing up and found no signs of physical damage but to my dismay the boards along the right edge of the screen with the driver chip blobs on them have two chips on each board with what appears to be craters blown in them. I'm not experienced with plasma screens at all but these boards appear to be directly bonded to the glass panel. Is there any hope of salvaging this unit? Obviously I lack the tools to do it myself but is it even worth looking into having done or would it be best to scrap the thing or sell it on ebay? Seems this model currently retails for around $6k, ouch. I should add that it blinks service codes 12 and 22. |
#4
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I doubt you will be able to service this yourself, unless the fault is
simple. You can try to contact the Sony service department, or simply take the gamble and have an estimate done. I have a feeling the former owner may have done this, and the cost of servicing it was too high... -- Jerry G. ====== "James Sweet" wrote in message news:LWQ1d.8389$iS2.7240@trnddc09... I've got this Sony plasma monitor here that an aquaintance picked up for free. From what I hear it was dropped, though initial inspection revealed that the glass panel is intact. Powering up the unit results in a quick flash of the screen lighting up then the unit shuts down, blinks the power indicator several times and repeats the cycle. Opened the thing up and found no signs of physical damage but to my dismay the boards along the right edge of the screen with the driver chip blobs on them have two chips on each board with what appears to be craters blown in them. I'm not experienced with plasma screens at all but these boards appear to be directly bonded to the glass panel. Is there any hope of salvaging this unit? Obviously I lack the tools to do it myself but is it even worth looking into having done or would it be best to scrap the thing or sell it on ebay? Seems this model currently retails for around $6k, ouch. |
#5
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I doubt you will be able to service this yourself, unless the fault is
simple. You can try to contact the Sony service department, or simply take the gamble and have an estimate done. I have a feeling the former owner may have done this, and the cost of servicing it was too high... -- Jerry G. ====== "James Sweet" wrote in message news:LWQ1d.8389$iS2.7240@trnddc09... I've got this Sony plasma monitor here that an aquaintance picked up for free. From what I hear it was dropped, though initial inspection revealed that the glass panel is intact. Powering up the unit results in a quick flash of the screen lighting up then the unit shuts down, blinks the power indicator several times and repeats the cycle. Opened the thing up and found no signs of physical damage but to my dismay the boards along the right edge of the screen with the driver chip blobs on them have two chips on each board with what appears to be craters blown in them. I'm not experienced with plasma screens at all but these boards appear to be directly bonded to the glass panel. Is there any hope of salvaging this unit? Obviously I lack the tools to do it myself but is it even worth looking into having done or would it be best to scrap the thing or sell it on ebay? Seems this model currently retails for around $6k, ouch. |
#6
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"James Sweet" wrote in message news:JKR1d.8118$5t4.7988@trnddc01...
"James Sweet" wrote in message news:... I've got this Sony plasma monitor here that an aquaintance picked up for free. From what I hear it was dropped, though initial inspection revealed that the glass panel is intact. Powering up the unit results in a quick flash of the screen lighting up then the unit shuts down, blinks the power indicator several times and repeats the cycle. Opened the thing up and found no signs of physical damage but to my dismay the boards along the right edge of the screen with the driver chip blobs on them have two chips on each board with what appears to be craters blown in them. I'm not experienced with plasma screens at all but these boards appear to be directly bonded to the glass panel. Is there any hope of salvaging this unit? Obviously I lack the tools to do it myself but is it even worth looking into having done or would it be best to scrap the thing or sell it on ebay? Seems this model currently retails for around $6k, ouch. Driver chips are most definetely fried If they are indeed bonded to the panel, then there is no chance of repairing it without the specialised re-bonding tools (similar to LCD screens). About all you can do is send the screen back to the manufacturers for refurbishment. -A I should add that it blinks service codes 12 and 22. |
#7
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"Andre" wrote in message om... "James Sweet" wrote in message news:JKR1d.8118$5t4.7988@trnddc01... "James Sweet" wrote in message news:... I've got this Sony plasma monitor here that an aquaintance picked up for free. From what I hear it was dropped, though initial inspection revealed that the glass panel is intact. Powering up the unit results in a quick flash of the screen lighting up then the unit shuts down, blinks the power indicator several times and repeats the cycle. Opened the thing up and found no signs of physical damage but to my dismay the boards along the right edge of the screen with the driver chip blobs on them have two chips on each board with what appears to be craters blown in them. I'm not experienced with plasma screens at all but these boards appear to be directly bonded to the glass panel. Is there any hope of salvaging this unit? Obviously I lack the tools to do it myself but is it even worth looking into having done or would it be best to scrap the thing or sell it on ebay? Seems this model currently retails for around $6k, ouch. Driver chips are most definetely fried If they are indeed bonded to the panel, then there is no chance of repairing it without the specialised re-bonding tools (similar to LCD screens). About all you can do is send the screen back to the manufacturers for refurbishment. -A Yep that's what I figured, seems ridiculous to me that the chips are on the flex boards bonded right to the panel, why not on the board that the flex boards plug into?! Oh well. I'll tell the owner that, perhaps it'll be cost effective to have it factory serviced. |
#8
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I am an owner of a PFM 500A3WU with the exact same problem.
And it wasnt dropped, just moved carefully form location ot location. All my research tells me the panel would need to be replaced. And with sony this is VERY cost prohibitive, especially when you factor in the cost for new EDTV 42" plasma displays and the 500A3WU is a first generation plasma. Very dissapointing especially when dealing with Sony service. If you ever find a solution please post. But I think you and I are both out of luck and a plasma TV poorer (luckily for you yours was free) |
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