I looked at my ss board and it had a short transistor dg302.So I ordered the kit from shop jimmy.i recieved the kit and installed it and it shorted out again.i noticed on the kit for the tc-p50ut50 one the was a ic but not on the tc-p55ut50.is there another component that shorts out.
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Tc-p55ut50 8 blinks
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Re: Tc-p55ut50 8 blinks
I would always replace it if there is any doubt.
You can check the resistance from the output to Vcc or ground.
Or use an oscilloscope to check the gate with the IGBT missing - it should swing between 0 and 15V, and not be stuck at either end.Last edited by tom66; 09-21-2015, 02:02 PM.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.
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Re: Tc-p55ut50 8 blinks
Originally posted by ricosavy View PostSI4840DY Is this the same chip
Here's a tip. JRC = Japanese Radio Company, 4840 is the IC number
Google JRC 4840
And this should be it.
good luckAttached Files
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Re: Tc-p55ut50 8 blinks
Makes sound like it can be used but i am not sure waiting for dg302 to come i order i will try find orginal one if not i will try bd8694.i am thinking this ic driver is probably my problem.What is strange is shop jimmy includes the ic driver for 50" tv and not the 55 one.
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Re: Tc-p55ut50 8 blinks
Originally posted by ricosavy View PostMakes sound like it can be used but i am not sure waiting for dg302 to come i order i will try find orginal one if not i will try bd8694.i am thinking this ic driver is probably my problem.What is strange is shop jimmy includes the ic driver for 50" tv and not the 55 one.
Luck of the draw.
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Re: Tc-p55ut50 8 blinks
Here is what i have found out bd8694 is actually in the kit used for the tc-p50ut50 it is the bigger size ic chip.the tc-p55ut50 uses the smaller one.i will have to look at the diagram for the tc-p50ut50 to see if they are wired the same.and the only difference would be size.ic152 is the bd8694 that is used on the model tc-p50ut50 and it does not use and it does not use ic153.the board numbers are the same just the chips are different in size.and they both have the spots where to mount the chips
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