Sony XBR-52HX909 No Power -Red LED blinks 5 times

[budm]

Re: Sony XBR-52HX909 No Power -Red LED blinks 5 times

This TV uses LED backlights, still cannot find the error codes for this TV yet, still researching. Try disconnected the CN6752 which feeds the LED backlights assemblies and see what happen.
Please take the DC voltage readings on CN6151, CN6152 also.

[tom66]

Re: Sony XBR-52HX909 No Power -Red LED blinks 5 times

Please avoid adding pictures to posts in line, instead use the manage attachments feature in future.
I need a picture of the chassis to determine what design this uses (24V or high voltage inverter.)

[DigitalStone]

Re: Sony XBR-52HX909 No Power -Red LED blinks 5 times

Pic of Powerboard:

[DigitalStone]

Re: Sony XBR-52HX909 No Power -Red LED blinks 5 times

Completely Black. Not a hint of Flicker.
Thinking it might be the inverter board. (RUNTK4332TP)

Have to dig out the meter and take some measurements.

[tom66]

Re: Sony XBR-52HX909 No Power -Red LED blinks 5 times

In a dark room, does the screen appear to glow, or flicker when first powered up?

[DigitalStone]

Have a XBR-52HX909. Will power on for a few seconds then shut itself off. White Sony LED logo will come on at bottom of tv. Click then off. Will blink 5 times on front Red Led then stop for a minute then blink 5 times again.

No Menu will come up ( No OSD). Nothing when switching inputs.
Screen looks like it doesn't even start up.

Have tried leaving unplugged overnight. Does the same thing next morning.

Did visual inspection on power board ( Sony 1-474-239-11 G6 ) couldn't see any problems.

Cant find service manual for the unit. Spend all morning googling different #'s and phrases but haven't turned up any ideas on the cause. Thought I would ask if anyone knew the problem off the bat or what the 5 blinking LED's meant.

Really hoping I can fix it.

Appreciate any advice.