Sony Bravia KDL-40W5500 - 14 blinks problem

[vinceroger69]

Re: Sony Bravia KDL-40W5500 - 14 blinks problem

did you do the test in post 15?

[jetadm123]

Re: Sony Bravia KDL-40W5500 - 14 blinks problem

From what you provided the main cap is putting out 389VDC, which means the PFC circuit is on. You also say the back_light_on command, which comes from the main board, is 0V. At this point, I suggest you test the voltages at connector CN6150. If those voltages check good, then you could have a bad main board.

[jetadm123]

Re: Sony Bravia KDL-40W5500 - 14 blinks problem

Re-reading your chart in post 16, it looks like your INV_ERROR pin has been triggered, which indicates a problem in the inverter section. Suspect this is what's preventing the BACKLIGHT_LIGHT_ON command from being sent. Check the resistor as budm/vinceroger69 suggested.

[neilc6]

Re: Sony Bravia KDL-40W5500 - 14 blinks problem

Maybe this thread applies https://www.badcaps.net/forum/showthread.php?t=66995

[turbosl2]

Re: Sony Bravia KDL-40W5500 - 14 blinks problem

What was your fix. I am having something similar but a little more complex of an issue on a similar TV

[can1363]

Re: Sony Bravia KDL-40W5500 - 14 blinks problem

Tried update, formatted FAT32 (was already FAT32, reformatted neverthless), plugged in then turned on TV. After 2 secs flash drive leds blinked a couple of times, then off for 2-3 secs, then blinked couple of times then stopeed. And approximately 4-5 secs TV led started infamous 14 red blinks and turned off.

Alper merhaba, benzer bir sorunu bende yaşıyorum şuan. Konu hakkında çözüme varabilmiş miydin? Teşekkürler. Can ERDOĞAN (Turkish)

Hello Alper, I'm having a similar problem right now. Were you able to come to a solution on the issue? Thank you. (English)