MAYBE...A POWER SUPPLY BOARD REPAIR CAN COST YOU MAYBE $300-$500. OR MAYBE A FEW CAPACITORS..SMALL REPAIR. AFTER 13 YEARS, IF IT IS THE POWER BOARD, YOU MAY WANT TO INVEST TO A NEW MODEL.
a tv has two components, firstly a power supply produces high voltage to trigger a line transformer, in turn a transformer produces smaller voltages. firstly check if the ht is constantly been produced from a supply, if this is there than go to a line transformer, and check voltages at the output.
If you turn on your set and you hear a clicking noise, or a ticking sound. You most likely have a shorted Horizontal Output Transistor (Refered to as a HOT)
I would recommend that you contact a local servicer in your area and see if they can come to your house and diagnose the problem and give you an esimate for the repair. This can be tricky to diagnose and the potential for electrical shock is very high. So I would be careful if you wish to repair it yourself.
I have done this repair before and I think that you should be able to get a servicer to your home and repair the set for somewhere between $350.00 - $450.00 depending on the parts that are needed and the area in which you live.
I hope that this helps you with this issue. If you have any further questions or, if you wish to repair it yourself please post back and I will try to help you as much as I can. Thanks for using FixYa asnowman
First put a flatenned moving box to cover the screen and then put a blanket on the screen and then tape it up. This would help with the scratches. Get two long flat ropes than can slide under the tv (side to side) and the tie the ends together, get a helper and then both you and the helper put the ropes behind your neck while lifting and also supporting with your hands. This is how professional movers do it. Once its in a truck, put the flat side facing the truck wall and tie it up.
look at the convergance board it will be the one on the left there re two stk semi-conductors tward the back of the board. most likly one of them are bad but sometimes the soldering can be faulty. look for signs of cold solder if so just resolder and should be good if not also look for burnt resistors. it will be obvious finding the stk 's can be done by using google and just type in the stk # finding the resistors you might try calling panasonic to find the part #by telling them the location of the burnt resistor. good luck. mind you that the soldering of the stk (semi-conductors) you will want to use a heat sink on each terminal you solder otherwise you take a chance of burning the conductor befor you ever get to use it, if you have no exp. soldering i wouldnt sugest trying it !!!!
You need to replace both STKs. They are pretty obvious to find in the unit. They are normally mounted to the same heat sink and will typically be about 3 inches long each, maybe 2 or so high...Front should read something like STK350-120
Check the Power Cord: Ensure that the power cord is securely plugged into both the TV and the power outlet. Make sure there are no visible signs of damage to the power cord or the plug.
Inspect the Power Outlet: Try plugging another electronic device (such as a lamp or a phone charger) into the same outlet to verify if it is functioning properly. If other devices work fine, then the issue is likely not with the power outlet.
Check for Tripped Circuit Breakers: Check your circuit breaker or fuse box to see if a circuit breaker has been tripped or a fuse blown. If so, reset the circuit breaker or replace the fuse and try plugging in your TV again.
Test with Different Power Source: If possible, try plugging your TV into a different power source altogether, such as a different room or building. This will help determine if the issue is specific to the power source you were previously using.
Contact Panasonic Support: If none of the above steps resolve the issue and your TV still does not power on, it's likely that there is a hardware problem with the TV itself. In this case, you may need to contact Panasonic customer support for further assistance or to arrange for repairs. Be sure to provide them with details of the troubleshooting steps you've already taken.
Check the Input Source: Make sure you have selected the correct input source on your TV for the device you are using. Use the remote control to cycle through the input options until you find the one connected to your video source.
Check Video Connections: Ensure that all video cables (such as HDMI, component, or composite cables) are securely connected between your TV and the device you are trying to watch content from. A loose or faulty cable connection could result in a loss of video signal.
Restart the TV and Video Source: Try restarting both your TV and the device you are trying to watch content from. Power off both devices, wait a few moments, and then power them back on. This can sometimes resolve temporary glitches or issues with the video signal.
Check for Software Updates: Make sure your TV's firmware is up-to-date. Sometimes software updates can resolve compatibility issues or bugs that may be affecting video playback. Check the settings menu on your TV for an option to update the firmware, or visit the manufacturer's website for instructions on how to do so.
Reset Video Settings: If you've made any changes to your TV's video settings, such as resolution or picture mode, try resetting them to their default values. This can sometimes resolve issues with video playback.
Try a Different Device: If possible, try connecting a different device (such as a DVD player or gaming console) to your TV to see if the issue persists. This can help determine whether the problem lies with the TV itself or with the original device you were using.
Contact Panasonic Support: If none of the above steps resolve the issue, it's possible there may be a hardware problem with your TV. In this case, you may need to contact Panasonic customer support for further assistance or to schedule a repair.
Turn off and unplug the projector.
Locate the lamp cover on the projector.
Remove the lamp cover.
Take out the old lamp.
Insert the new lamp.
Replace the lamp cover.
Reset the lamp hours:
Press the Enter button to display the "Option" menu.
Use the 5 or 6 button to select "Lamp Runtime".
Press and hold the Enter button for approximately 3 seconds.
The "Lamp Runtime" will change to "Time Reset [Power Off]".
Turn off the power and disconnect the power cord.
Finally, plug in and turn on the projector.
Remember to consult your projector's operating instructions manual for specific details and safety precautions. How to change Panasonic vx 400 xga projector lamp change or replace (youtube.com)
