SHARP
LC-80LE633U
huge 80" tv that needs 2 people to move around.
got from a friend
it was his friends tv
he said they were watching it and heard a pop
then it wouldnt turn on again.
checked voltages on psu.
high voltage present.
pfc standby voltage ~175vdc on all 4 caps so seems ok.
no voltage on cold side.
no 5vsb.
measured voltage on components to see where it is and where it isnt.
found resistor R7133 to have 175v going into it but nothing coming out.
found resistor R7133 to be open.
removed, and found small hole in it.
resistor code: red red gold gold
according to the app on my phone
it means 2.2 ohms +- 5%
what resistor should i replace it with so this doesnt happen again?
should i go with a higher ohm resistor? and what about watts? does the color code tell you anything about how many watts it can handle? do i have to use ohms law?
LC-80LE633U
huge 80" tv that needs 2 people to move around.
got from a friend
it was his friends tv
he said they were watching it and heard a pop
then it wouldnt turn on again.
checked voltages on psu.
high voltage present.
pfc standby voltage ~175vdc on all 4 caps so seems ok.
no voltage on cold side.
no 5vsb.
measured voltage on components to see where it is and where it isnt.
found resistor R7133 to have 175v going into it but nothing coming out.
found resistor R7133 to be open.
removed, and found small hole in it.
resistor code: red red gold gold
according to the app on my phone
it means 2.2 ohms +- 5%
what resistor should i replace it with so this doesnt happen again?
should i go with a higher ohm resistor? and what about watts? does the color code tell you anything about how many watts it can handle? do i have to use ohms law?
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