Sony KD-55X7 E Series - 2 X Blinking - Main Power Error

19
LD Board
2 times
Blinking
Change LD-
Board
LD-Board
Check DC voltage at
Q1002
18V – 20V?
*Typical: 19.5V
Yes
No
Change
LD-board
Change
Adaptor
No
Adaptor
Take out adaptor
and check the output voltage.
18V – 20V?
(Refer Figure 1)
*Typical: 19.5V
Yes
Figure 1: How to check adaptor’s output
voltage.
+ve
-ve
Ensure that
+ve probe is
touching the
needle.
3.1 : 2x Blinking – Main Power ErrorPower Error