sony kdl-46w5100 no red light standby, on green off red light flash 14 times

[mydang]

I need help any people know what wrong of my tv, please

1- As soon I plug into power no red led standby show front TV, check voltmeter has ST-By 3..3 v
2- As soon press power button green light on working but no backlight or sound then 5-10 second green light off by itself then
3- Red light on and flash 14 times stop then keep flash 14 times keep cycling

BUT one thing if as soon I plug tv to power the turn tv on then I use wire to connect pin st-by 3.3v to backlight pin then I see
Backlight working bright and logo tv sony show on screen then off after a 4-5 second, every time I do that backlight on
Please I need all people here to help and tell me what is wrong
Thank you

[tvtimmy]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

Tcon most likely.

[neilc6]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

Check for 12V on Tcon fuse.

https://www.badcaps.net/forum/showthread.php?t=66995

[mydang]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

Check for 12V on Tcon fuse.

https://www.badcaps.net/forum/showthread.php?t=66995

checked t-con fuse is 12 volts

Thank you

[mydang]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

Tcon most likely.

brand new t-con but no luck , Thank

[neilc6]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

checked t-con fuse is 12 volts

Thank you

Did you check both sides of the fuse?

[budm]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

If you do have 12V on both ends of the fuse with ref, to GND. What happen if you remove the cables between T-CON and the LCD panel?
BTW, can we see the whole back side of the TV showing all the boards?

[mydang]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

Did you check both sides of the fuse?

yes both side is 12v
thx

[mydang]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

Thank you all people help me
14times red light flash tell us is bad t-con or panel is not right so far
now I attached a picture I found the problem from the inverter board
Please take a look a picture

[budm]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

Can we get good clear straight shot pictures of the whole bottom side of this DN1 board?
SONY D1N_1-878-620-12
D6615 SONY P/N 6-501-776-01 DIODE P/N MAZ8150GMLS0 (15V Zener)

[mydang]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

Can we get good clear straight shot pictures of the whole bottom side of this DN1 board?
D6615 SONY P/N 6-501-776-01 DIODE P/N MAZ8150GMLS0

thank here is the whole picture dn1

[mydang]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

Can we get good clear straight shot pictures of the whole bottom side of this DN1 board?
SONY D1N_1-878-620-12
D6615 SONY P/N 6-501-776-01 DIODE P/N MAZ8150GMLS0 (15V Zener)

Thank you for your help look clear , please tell me what value smd diode to replace for D6615

[budm]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

See post #10

[mydang]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

Can we get good clear straight shot pictures of the whole bottom side of this DN1 board?
SONY D1N_1-878-620-12
D6615 SONY P/N 6-501-776-01 DIODE P/N MAZ8150GMLS0 (15V Zener)

Thank I understand what is diode i need sorry i am new here to learn

[mydang]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

Can we get good clear straight shot pictures of the whole bottom side of this DN1 board?
SONY D1N_1-878-620-12
D6615 SONY P/N 6-501-776-01 DIODE P/N MAZ8150GMLS0 (15V Zener)

Hi! Budm
i attached the picture for you to look
can i use this kind of zener diode to replace D6615 instead of MAZ8150GMLS0
Thx

[budm]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

You can, you just have to solder it in place properly.

[mydang]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

Thank Budm your help is appreciated

[budm]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

BTW, check the fusible resistor that feed that VCC pin of the IC.
Also, are you sure it was 14-blink code?

[mydang]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

BTW, check the fusible resistor that feed that VCC pin of the IC.
Also, are you sure it was 14-blink code?

Yes bubm i double check again red light linking flash 14 time then stop hafl second then flash 14 time then stop and keep flash every 14 times
thax

[mydang]

Re: sony kdl-46w5100 no red light standby, on green off red light flash 14 times

Budm please tell me how come the BACKLIGHT pin even stand by and power on no Dc voltage on that pin, i think it should have volt to kick on backlight for tv