KDL-40W580B, KDL-40W590B, KDL-40W600B, KDL-40W605B, KDL-40W607B, KDL-40W609B, KDL-48W580B, KDL-48W590B, KDL-48W600B, KDL-48W605B, KDL-48W607B, KDL-48W609B, KDL-60W605B, KDL-60W607B, KDL-60W610B, KDL-60W630B - Sony TV Service Manual (repair manual). Page 30

Read Sony KDL-40W580B / KDL-40W590B / KDL-40W600B / KDL-40W605B / KDL-40W607B / KDL-40W609B / KDL-48W580B / KDL-48W590B / KDL-48W600B / KDL-48W605B / KDL-48W607B / KDL-48W609B / KDL-60W605B / KDL-60W607B / KDL-60W610B / KDL-60W630B Service Manual online

Chassis: RB2G, HM
Chassis: RB2G, HM 
30
2.2 LED BLINKING 4x (LED Voltage Error)
2 LED Blinking
2. LED Blinking
2-2-3.  4 times blinking
4-time blinking
4 time blinking
Check 
LED driver
Between 0.49V to 1.32V
BACKLIGHT_MON
on the B* Board
 For HT, HM, change LD board.
 For HE, change Panel.
B* Board
 
2.2-3 - LED Blinking: 4x Blinking
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