Hi All this tv comes on with good sound and picture but goes off after 20 seconds with LED flashing 4 times I suspect main pcb, any other ideas would be great.
Thanks Marcus.
Thanks Marcus.
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Re: sony KDL-46W905A
Quick google search says 4 blinks is the backlight. Try turning down the backlight level and turn off any setting that may change the backlight level with ambient light. -
Re: sony KDL-46W905A
Service manual for KDL-40W900A found by googling. Should be similar. Most likely bad backlights.
4X LED Driver Error [LD_ERR] (HG/TE Model) - Panel ModuleComment
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Re: sony KDL-46W905A
Thanks for the reply neilc6 I will look in to the backlights further.
Thanks Marcus.Comment
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I was asked to look at a Sony KD-55X8509C as it was not powering on, no lights.
On inspection, there was no physical issues.
I seated all cables and repowered the TV, then the LED light flashed Green / Amber.
- this seems to indicate repairing required, done by Firmware update.
so downloaded the latest Firmware from Sony website and wrote to 4Gb USB drive.
Inserted the drive and repowered the TV.
LED changed to white flashing/pulsing ... and it sat there for over an hour.
i was unsure what was happening so repowered the TV and now it just... -
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As far as I understood, steady flashing either means insufficient power or a CPU/GPU/Motherboard issue. I use the original 65watt power supply.
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