Hello,
My Hitachi 43UWX10B will not power on properly. The power light will flash and I hear a clicking noise. I openned up the back and saw a green LED flashing. The id on the circuit board for this LED is DP25.
Can anyone help me with this?
Thanks,
Scott
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47 Answers
Re: Flashing Power Light
Located in the power supply section of the unit.
There is a pico fuse (soldered in fuse) that opens up and there is no high voltage. The second click
that you hear when the set is turned on. This can be diagnosed With set unplugged, with an ohm meter
with a simple continuity test. I think the pico fuse is 4 amps , I am not absolutely sure. I have seen this problem in that unit previously. There
is also a convergence problem that occurs with that set. Scrivitron.
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Yes,the LED power lite on the front panel stable?Yes,mean the DM power supply board is good.LED power like blinking,mean the DM power supply board is dead.DM power supply is good,still making that clicking sound,when turn on.Mean ur Blast board is dead,that the board that help to light up the projection lamp.
2 flashes space 2 flashes to 9 flashes space 9 flashes
once we know these we can pretty much determine the problem. None are good of course! They are all faults that need a repairman to intervene. There is no magic fix!
Please reply and I will give you the answer based on the sequence
This tv have different causes for no power.
Can you tell me if any light on the chassis is off?, if so, let me know the location part number.
Common problem is IC output ( short) or convergence STKs ICs.
Thank you
I doubt if its the fuse. We just helped a customer with a very similiar problem. Its more likely that the convergence IC have failed and shorted out. When this happens one of the symproms is that the TV will shut down and chirp. Goto www.TvRepairKits.com and click the contact us button. They can provide you with more instructions on how to test if this is the problem.
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