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Yes this is normally an indication that the HV has exceeded 33,000V. The first thing to check is the rgulator circuit. If you plan on attempting this repair yourself, please udate this and I'll look up the specifics.
If you need the service manual, perform a Google search. There are a number of sites that have the manual available for sale. I am not aware of any free site that would have it. THe cost should be around $10-$15.
This may be a problem in the HV section of your TV. My question is do you have raster, or is the screen totally black? If you have raster then this is a video problem, if the screen is totally black then it is a HV problem. In either case if you do not have a background in electronics I would suggest that you take your TV to a qualified TV technician. If you do have a background you will need the following items:
A schematic diagram of your TV set to know where the test points are and to see what voltages and or signals should be at what point in your TV set A multimeter to measure AC voltages. DC voltages, and Resistance when needed. An Oscilloscope to measure signals that should be present in various sections of the TV as shown by the schematic. A signal generator to create the proper input signal for testing.
These are the major tools needed, not to mention a soldering iron, and a de-soldering tool
Most likely the modules you put in also blew again.
The reason is that there is a fault in another section of the set. For an example, the main power supply may also be defective. If its output voltages are not in spec damage will be done.
Many times when there are failures it is very important also locate the cause of the failure. This type of diagnostics can be involved and will require experience with a solid knowledge of the TV set, the proper test equipment, tools, and the service manuals.
The authorized service center is equiped, and has properly trained technicians that can service your set.
the part number for the high voltage transformer, according to another post for this tv is 258512. See below:
posted on Sep 03, 2008
jdenton77 Rank: Apprentice Rating: 85%, 1 votes
Yes, i had the same issue. High voltage trans. and the HV distributor (splitter) goes bad on there tv, they are known for that. I have the part numbers for the HVT p/n 258655 and HV distributor(splitter) p/n 258512. The two p/n are for HD56W58 proj. tv
Sounds as though there is an intermitant, heat-related problem with the HV transformer. You can order this at a tv parts shop or from Sony (probably more expensive) the part number should be on the part or on a schematic. If not, the parts dealer can look it up from the model number.
Just replace it... it is called the High Voltage Splitter. One red wire is the high voltage input from the flyback (high voltage) transformer, 3 red wires are the high voltage outputs that go to the 3 picture tubes and the red wire by itself is the focus wire going to the focus block. Does your splitter have a small PC board on the side of it? What is the exact model or chassis number of your set? With that info I can give you the RCA part number of the splitter which makes ordering it much easier.
Yes, i had the same issue. High voltage trans. and the HV distributor (splitter) goes bad on there tv, they are known for that. I have the part numbers for the HVT p/n 258655 and HV distributor(splitter) p/n 258512. The two p/n are for HD56W58 proj. tv.