Sony KD-43X7 F Series Service Manual page 20

3.2 : 2x Blinking – Main Power Error
LD Board
-ve
Adaptor
LD-Board
No
No
Take out adaptor
Check DC voltage at
2 times
and check the output voltage.
Change
Q1002
Blinking
18V – 20V?
Adaptor
+ve
18V – 20V?
(Refer Figure 1)
*Typical: 19.5V
*Typical: 19.5V
Ensure that +ve
probe is touching
the needle.
Yes
Yes
Change LD- Change LD-
board Board
Figure 1: How to check adaptor's output voltage.
20
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