The picture was flashing the picture was dim i check the power supply i found about four of them blown i replace them i then check all the voltage they were ok but still get flashing picture

Red Power LED
flashes once
every two
seconds.
OR
Red Power LED
flashes four
times, once
every second,
followed by a
two second
pause.
None Power failure
(power supply is
overloaded).
1. Check that the voltage selector,
located on the rear of the power
supply, is set to the appropriate
voltage. Proper voltage setting
depends on your region.
2. Open the hood and ensure the 4-wire
power supply cable is seated into the
connector on the system board.
3. Check if a device is causing the
problem by removing ALL attached
devices (such as hard, diskette, or
optical drives, and expansion cards).
Power on the system. If the system
enters the POST, then power off and
replace one device at a time and
repeat this procedure until failure
occurs. Replace the device that is
causing the failure. Continue adding
devices one at a time to ensure all
devices are functioning properly.
4. Replace the power supply.
5. Replace the system board.

It is possible but a voltage check of the power supply will tell if it is bad or something downstream is pulling voltage down, power light going dim means something is really loading the supply down.

Two ways to approach this--the red should be on all the time---as for the others you have to look to see which goes out first or last---each is connected to a voltage source--a primitive self check.

Voltage checks usually don't reveal much==the voltages will come up and go down instantly.

If that red is dim and flashing it is at the input of the primary part of the power supply

Good day!

Actually if your TV have problem like that it is not on the inverter.That problem could be on the power supply or the system board.

Follow this D.I.Y procedures to find the exact problem of your TV.

1. Remove the back cover of your TV.
2. After that,find the power supply board.
3. If you already found the power supply,plug-in your TV and power it ON.Check the input voltage of it,using multimeter (AC range).If the power supply have no input voltage the problem could be the power cord.Replace it.
4. If the power supply have the input voltage,try to test the output voltage if have 5vdc for the system and logic supply,12vdc for the sounds and 24vdc for the back-light inverter.Use your multimeter tester (DC range) to test that.
5. If the power supply have a voltage outputs such as 5vdc,12vdc and 24vdc and the problem is still there.The problem could be the main board.Replace it with the same type and model # because the main board is no very difficult to fix and its very sensitive.
6. If the power supply have no output voltage or the voltage is too low,just ignore the step # 5 because the problem is not on the main board,its on the power supply board.

Check the following to fix the power supply board:

• Fuse: Check the fuse if it is busted or blown.
• Power transistor (regulator): Check the regulator if it is shorted or leak.
• Resistor: Check the resistors specially the one that have a low resistance that near the power regulator.
• Capacitor: Also check the capacitors if it is leak or bulging top.

NOTE: If you found any defective parts or components that mention above replace it with the same value,type and ratings.

I hope this solution will be helpful.Thank you and good luck.

Hello

Your TV is now in dead condition I should say. You should strart from its power supply regulation section itsef to rectify the fault. Look into the fuse, a glass fuse is there, in power supply board. If It has found blown, make sure that there is something short in either power supply regulator side, of on the other part of the printed circuit board.
You just place a fuse of same rating as used, if the fuse is blown. If the fule you installed newly also blows off, check first the retifier stalk for any leak. The stalk contains four diodes, even any one of them gets shorte, fule will blow up. If there is no leak in the retifier stalk, measure the voltage resistance across the main filter capacitor, a bulky one capacitor fitted in the power regulator section. If you see a full deflection on meter, it means that there is some dead short inside the power regualtor system.
Usually Sony uses STR regulated type power supplies, and some uses MOSFET [Metal Oxide Semiconductor Field Effect Transistors], as switching elements. Bothe of these types can be shorted, due to a high voltage spikes, or a sudden supply failure and restart.
Check out short test on these components, out of board, that is, desolder it out from the circuit board. You just resolder one by one and measure the resistance ad described above. Thus you can find out the exact component, that have a short. If any of these components shorted, check the entire power regulator section for any more component failure, like zener diode short, resistors opened, and so on. You should have a concept of soldering and a little knoledge in electronics. There will be a MOV [Metal Oxide Varistor] fitted across the power supply input, which look like a disc capacitor. it will get shorted when a certain voltage spike occures abvve its rated voltage, and apply a dead short at the supply stage. If any of them used, desolder it out and check for any leak, and is found leaky, replace it. It is used as a saftey measure, and without it the set will work fine.
Just check these and if you find any difficulty, contact me through Fixya. Ok.

The common fault often points the problem being to the power supply or the main printed circuit board.
If you are tech-savvy, you can open the back of the unit and measure, using a multimeter, the voltages from the power supply printed circuit board as well as the main printed circuit board, if the power supply is sending insufficient voltages, its common that you will get the flashing red lights.
Also check for any blown capacitors on the power supply as well as any shorted resistors. I hope this helps.

A 6 blink SOS shutdown, you would want to be looking at the SC, SU and the SD boards. One of those boards is causing the malfunction. Possibly, but unlikly(I have to mention it for just in case reasons) the PDP panel could have blown those boards.

Just out of curiosity, what was the original problem that made you call the first repair guy?

Contact Pioneer at 1-800-421-1404 about getting an in-home power supply replacement. This is a known issue with some plasma displays. Some of you would experience a loud pop and then the power supply fails. You get a red light below the ON button, when you press on, the red light will turn green for a second and then back to red. The plasma display will not turn on after the power supply fails. Call Pioneer at 1-800-421-1404.
Brought to you by http://abstravel.com and http://reservaciones.com

common fault on hitachi is the -26 volt supply is bad,ther should be voltage markings near or around the led's,find the b+ one thats missing or being pulled down

The place is call wwww.servicemanuals.net ,you can get it download or a paper copy,for this set I dont know the price but it will give it to you when you put the model number.Check for shorted horizontal output and loose conections,sometimes intermitant conection damage this transistor.Be careful