No sound/picture and red power light always on (Hitachi 43FDX15B)
I have acquired the set above (Hitachi 43FDX15B) and when I plug it in, there is the red power light but no picture or sound. I've taken the back panel off to see what's inside and I see one red LED by the video board, and 3 out of 4 green LEDs on closer to the screen. There is also a green LED on the side of the TV on the board where the power cord goes into. I hear the relay clicking when I press the power button but the Red Power light is on no matter what, along with no picture or sound. Any ideas on what is going on?
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Re: No sound/picture and red power light always on...
When u turn the tv on,u hear alot of clicking?That mean the Ballast that help the projection bulb to work is dead.Change the Ballast,might as well change the bulb too.U don't know what is the condition of the projection bulb in.
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Just a thought, but check all of the pico fuses for a blown fuse. The pico fuses look like a small yellow resistor. Some Hitachi's are famous for having a blown hi-volt ceramic capacitor and a blown pico fuse.
I think the red led on is a short protect indicator, but I could be mistaken.
This can be caused by a few things. The red crt/picture tube is going bad, which it would have to be replaced, tube can cost anywhere around $195 and up, if it is available. Another problem can be a bad transistor or IC on the red crt circuit board. Either way it should be taken to a repair shop. The average cost for repair could be over $300.
Well Dr. Hitachi has a sequence of L.E.D lights in back of set that lights up in accordance to what is wrong with set. there are about 8. so you need to first get someone to turn on and while looking notice which lights up first and goes out first. This tell the tech what is wrong with set. From my experience with Hitachi, I have replaced many Convergence amps which are the big STK's392-*** or something close to this depending on the set. But it most of the time gives some kind of indication before going out. Like color problems not matching up. Red, Blue or Green out of line, mostly on corners of set. If no color problems then next would be sound problems, and vertical problems. Either problem will give a no High Voltage problem like yours. Also it has little pica fuses, sometimes yellow in color. These can be open also. There are many areas to check but if you are willing you can find the problem. Remember to be safe at checking anything with set plugged in. Turn off first. Hope this helps!
Sounds like you may have a sticking Relay S901 on the power board. Tapping the Relay may Make The Light Go On And Off. The relay part number is FJ00142 if you can find someone to work on the set for you as it would involve soldering in the new part. The number on the relay may be ALKS329 with the former part number being the Hitachi Part number.