Sony KF-42WE610 Service Manual page 12

<Self-Diagnosis block diagram>
LCD Engine u-com
H3/A board
IC41
4:Temp
Temp
IIC-E
sensor
G3/A board
+3.3V
8:D-OVP
+2.5V
49
+1.8V
6:+B OVP
+17V
53
17V-DET
G1/A board
C2 board
IC3208
3:Lamp
cover
27
LAMP COV
5:Lamp
driver
LAMP DRV 28
Lamp
LAMP PROT 29
4:Fan
24
FAN PROT
IC3405
CN8022
MAIN u-com
D-OVP
7:Audio
SP-DC-PROT 59
LOW-B-ERR
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KF-42WE610/50WE610/60WE610
K
RM-Y913
A board
T/A board
S3999
CN8014
SW
3
2
1
HV-DET
CN8003
Lamp driver
1
LAMP-PRT
Fan1
2
FAN1-PRT
Fan2
5
FAN2-PRT
8
Fan3
FAN3-PRT
IC8504
Audio
amp
IC4704
Audio
amp
AU board
RM-Y913 RM-Y913
Lamp