Thanks so much for this site! Can't tell you how helpful it's been!
I'm finally back to working on my "Dumpster-TV" which initially just showed a solid green screen, but after replacing the Main board it worked--more or less. It never turned on perfectly--it would require several unplug/replug/turn-on cycles until it "caught", then it was fine. It got worse and worse, until now it seems never to "catch".
The symptom is the red standby light which is solid when power is plugged in, goes to a slow blink when "ON" is pressed (and there's a "click". The display glows brighter as the red light power gets brighter--then goes dark when it goes out, and the cycle repeats indefinitely After the initial turn on there is never any further response from the remote or buttons--it needs to be unplugged/replugged to get back to standby (solid red light).
Never any sound of course--I don't think it's getting that far.
I figured power board, ordered and installed a new one--no change.
I tried removing the ribbon cable as Tom has suggested in many threads and jumped the logic board for the Test Pattern--and---I get a White - Black - Red - Black pattern. Those look fine, but there's no other colors(!) which makes me think this is a messed up test pattern--and possibly a bad logic board?
Since I already replaced the power board with no change--and am on my 2nd main board as well--and when it initially showed this behavior it was possible to get it to eventually work (and it worked fine until powering off in those cases) -- is that a logic-al guess? The logic card does have a flashing light - 1 long, 4 shorts I think, but from my reading those don't tell anyone much. Are there any other tests I can perform to try to nail it down? My wife is not amused I've already bought two cards and am still no where.Already reset all the cables and such--no change.
I attached all the relevant pics of the TV. Thanks a million!
I'm finally back to working on my "Dumpster-TV" which initially just showed a solid green screen, but after replacing the Main board it worked--more or less. It never turned on perfectly--it would require several unplug/replug/turn-on cycles until it "caught", then it was fine. It got worse and worse, until now it seems never to "catch".
The symptom is the red standby light which is solid when power is plugged in, goes to a slow blink when "ON" is pressed (and there's a "click". The display glows brighter as the red light power gets brighter--then goes dark when it goes out, and the cycle repeats indefinitely After the initial turn on there is never any further response from the remote or buttons--it needs to be unplugged/replugged to get back to standby (solid red light).
Never any sound of course--I don't think it's getting that far.
I figured power board, ordered and installed a new one--no change.
I tried removing the ribbon cable as Tom has suggested in many threads and jumped the logic board for the Test Pattern--and---I get a White - Black - Red - Black pattern. Those look fine, but there's no other colors(!) which makes me think this is a messed up test pattern--and possibly a bad logic board?
Since I already replaced the power board with no change--and am on my 2nd main board as well--and when it initially showed this behavior it was possible to get it to eventually work (and it worked fine until powering off in those cases) -- is that a logic-al guess? The logic card does have a flashing light - 1 long, 4 shorts I think, but from my reading those don't tell anyone much. Are there any other tests I can perform to try to nail it down? My wife is not amused I've already bought two cards and am still no where.Already reset all the cables and such--no change.
I attached all the relevant pics of the TV. Thanks a million!
Attached Files
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