Sony KDL-50EX645 6 blinks simple fix

[Sevenqi]

Not able to power on, 6 blinks.

Tested the backlight OK with backlight tester. The problem is the 4 series resistors R602A-D values increased. Looks like everyone is possible to change values.

I jumped the R602D (it's underneath the heatsink) with a wire (on the other side of the board) fixed the problem.

[budm]

Re: Sony KDL-50EX645 6 blinks simple fix

Did you check the DCV on the main filter cap 82uF 450VDC after bypassing the resistor?
Delta DPS-162LP.
https://www.shopjimmy.com/sony-1-895...r-kdl-50ex645/

[dick_barton]

Re: Sony KDL-50EX645 6 blinks simple fix

Why not replace the 4 resistors if that was the problem?

[thommyX]

Re: Sony KDL-50EX645 6 blinks simple fix

There are different kits, but what are their names?
6 flashes IC303, IC601 IC801 R602D
6 flashes Q901 R602D
6 flashes IC601 IC301 D305 ZD306

IC801 is said to be NCP1608
IC601 is said to be 2QS02G
IC303?
Q901?
IC301?
D305?
ZD306?

LG Thomas