Sony BRAVIA... | 143 views | 1 helpful votes
Sony BRAVIA... | 634 views | 1 helpful votes
Sony BRAVIA... | 287 views | 1 helpful votes
Here are some basic steps that will help you fixing the problem.
I'm assuming that your unit is dead set without an standby LED
light and your outlet is live.1.Power cord - check the cord it might be opened (no
continuity).This is due to frequent bending,pulling. 2. Power switch - check for dry joints, open contact. 3.Check the internal fuse-
sometimes the fuse fail because of the power
surge, replacing with new one will cure the problem, If this is the case I
would advice you to use surge protector/AVR (Automatic Voltage Regulator).
However if the fuse blew again this is an indication that you have a shorted parts in the power supply, you may visit the
linkhttp://www.fixya.com/support/r8053361-fuse_keeps_blowing for more info. If no reaction and
still the unit didn't power up then you have an open parts on the power supply.
4.If you see that the fuse is intact , don't attempt to touch anything
because there some fatalcomponents
stored electricity enough to hurt you with a simple mistake only. I would
advice you to look for a
professional to troubleshoot
the power supply. If you want to repair it yourself make sure that you have
necessary tools and test
instrument. First check bad solder joints(re-solder all
cold solder), leaky
electrolytic capacitor(sometimes it has bulged at the top but not all, you better
have a capacitor checker), open/shorted regulator transistor/IC(mounted in heat
sink), open fusible resistor (caused by shorted regulator
Transistor/IC), shorted zener
You may also replace the power supply board, try online like
ebay.com and shojimmy.com.
Also check if your unit is under warranty before opening the back
panel, it will void the warranty. Avail it because the manufacturer of your
unit will fix it for free or a little charge only.
Hope I helped you.
Have a nice day!
Thanks for using fixya.
Sony BRAVIA... | 155 views | 0 helpful votes
Sony BRAVIA... | 2,535 views | 3 helpful votes
Sony BRAVIA... | 325 views | 0 helpful votes
Sony BRAVIA... | 323 views | 0 helpful votes
You may power on the unit in the dark room and directly shine the
flashlight to the LCD monitor. You will barely see an image or picture because
the fault is either the inverter
board or the lamp (backlight).
You may isolate the problem but it will require you some tools and test instruments.
Also, you must know some basic safety
precaution in electronics
Best way to find the faulty parts between the two you need to test
the output of the inverter board. You can do it
using the voltmeter or if does not available you may
substitute a two 12v car bulb
in series to the output of the inverter board. Powering on the unit and
look if the bulb will glow or not.
Yes, your lamp was busted. No, the inverter board fail.
You may look online for the replacement of defective parts. If you
can't fix it yourself, I would advice you to send it to your local Sony service center or look for a professional to troubleshoot the problem. Also,
check if the unit is under warranty,
avail it because the manufacturer of your unit will fix it for free or a little
charge only. Don't attempt to open the back cover because it will void the warranty.
Hope I helped you.
Have a nice day!
Thanks for using Fixya.
Sony BRAVIA... | 64 views | 0 helpful votes
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