Sony KDF-55WF655K Service Manual page 10

Self-Diagnosis Block Diagram
H4 board
IC41
Temp
sensor
KD board
Audio
amp
7:Audio
A board
+3.3V
8:D-OVP
+2.5V
G1 board
6:LowB
DD6V
DTL5
G2 board
IC6902
Display Engine u-com
FAN PROT
4:Temp
IIC-E
LAMP-COVER
LAMP-PROT
LAMP-HV-DET
IIC-WE
CN6029
23
CN6020
C26
CN6029
23
error
CN6006
15
KDF-55WF655K/60WF655K
CN6000
4:Fan
Fan1
2
92
FAN1-PRT
Fan2
5
FAN2-PRT
8
Fan3
FAN3-PRT
Fan4
11
FAN4-PRT
T board
CN6022 S8001
3:Lamp cover
94 14
5:Lamp
95 8 Lamp driver
driver
13
96
HV-DET
14
IC3801 WE u-com
IIC-WE
IIC-TV
IIC-TV
CN6019
A8
128
126
A14
B14 129
CN6017
12:ATSC
127
16
OVP
CN6023
DTL MDL5V
5
– 9 –
RM-KD001
SW
Lamp
B
IC3604 TV u-com
SP_DC_PROT
D_OVP
LB_ERROR
ATSC_OVP
Digital Box
RM-KD001