Question about Proscan 47LB45H 47 in. LCD TV
One of the many reasons could be the power supply
PROSCAN 40LD45Q LCD TV POWER SUPPLY AYL400201
these may look like these
One may have to open up the TV and check:
( Before ordering )
for possible bad components
( and board confirmation If it is the same on the link )
like for visual, capacitors in orange circle
If there seems no bulge or swelling capacitor,
then Voltages should be measured ( yellow box )
How to use a multimeter
If the initial ( standby voltages like 5V ) are gone
then these board should be replaced or
Although there are still fuses on the power supply
These power supply have Transistors
How to test MOSFET
There could be other causes but let us start from the
power supply first.
Posted on Sep 04, 2010
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Posted on Jan 02, 2017
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