Turn on tv, one of the lights on front panel comes on,click noise from inside, (in back) all green led lights stay, on main board a single red led light flashing <(protect led)>(there is no pauses between flashing)and making beeping noise. i do not have the original remote but i do have a directv universal remote thinking that since this tv has a directv built in ,it should work,right? i tried to program with remote using code 00819 but no change.HELP!
SOURCE: chirping noise and flashing front power light.
hey techman - when you say shorted do you mean shorted in the IC or where the ic solders to the board?
SOURCE: Flashin power light - wont come on
The "green light flashing to the chirping" circuit may be defective. Not a basic diagnosis--service literature and/or knowledge of each green light circuit will be needed.Possible shop repair.
SOURCE: Hitachi 50ux58b
If you have Hitachi model number 50UX58B, 60UX58B, 50UX58K, 60UX58K, 50SBX78B or 60SBX78B and you have the following symptoms you may want to grab a repair kit from www.TvRepairKits.com. They have put together a kit that includes the parts and instructions to fix these models. This is a fairly common problem with the above model numbers. It is typically caused by a blown capacitor and pico fuse. Again, you can get a kit from the above address.
Here are the symptoms...
Primary Symptom: No Audio or Video. Power light will come on briefly then shut off.
Other Possible Symptoms : The green LEDs on the circuit board light up for a few seconds then turn off.
Hope this helps,
SOURCE: continued from no picture no sound just clicking
HI, this is total power supply failure. you and a dual power supply unit that, universally, powers all devices directly. there are no ballast in this set so, you will have to replace the Power controls and the fly-back transformers as well. this will fix this unit.
SOURCE: Have a Hitachi 53sdx89BA Rear Projection TV. Turn
Discharged Flyback Transformer. Removed main pc board from bottom of TV and flipped over, no apparent damaged components or blown board traces were found. Noticed a lot of flux in various areas on the board that seemed unusual (maybe TV was worked on before as I bought a showroom demo at Circuit City). Used a plastic screwdriver to remove all flux between connections on ICs, Transformers, Flyback Transformer, and various other components. Cleaned all debris, dust and crud accumulation (TV is over 10 years old and there was alot around the Flyback Transformer) from both sides of board using a lightweight paint brush.
Used a magnifying glass to check all solder joints for possible cold solders and found none. Did the same for Power Supply Board. Checked various ICs and Power Transistors for opens or shorts (in machine) and they seemed fine. Reinstalled boards, said a few Hail Mary's and fired it up.
The protector Led no longer flashed under power and lo and behold I got picture and sound!
I cleaned the lens on the projectors (again 10 years of dust accumulation) did a magic focus adjustment and it works fine!
After reading other fixes, I fully expected it to die after 10 minutes so I left it on all day and against all odds it still works.
What was the fix......Dirt buildup on and around Flyback and other components,,,,,,Flux conducting electricity between contacts on Flyback and other components.....or oxidation on connectors between Power Supply and Main Board.....I don't know.... all I know is that for the moment I saved around $ 300 - 400 in repair bills by doing it myself.
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SAME PROBLEM STARTED ON 12/23/08
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