Sony KDF-55XS955 Service Manual page 10

Self-Diagnosis Block Diagram
H3(WE)/H4(WF/XS)
board
IC41
Temp
sensor
KD board
Audio
amp
7:Audio
A board
+3.3V
8:D-OVP
+2.5V
G1 board
6:LowB
DD6V
error
DTL5
KDF-55XS955/60XS955
G2 board
IC6902
Display Engine u-com
FAN PROT
4:Temp
IIC-E
LAMP-COVER
LAMP-PROT
LAMP-HV-DET
CN6029
23
CN6020
C26
CN6029
23
CN6006
15
CN6000
4:Fan
2
92
FAN1-PRT
5
FAN2-PRT
8
FAN3-PRT
11
FAN4-PRT
CN6022
3:Lamp cover
14
94
5:Lamp
8
95
13
96
14
IIC-WE
CN6019
A8
A14
B14
CN6017
12:ATSC
16
OVP
CN6023
5
Fan1
Fan2
Fan3
Fan4
T board
S8001
SW
Lamp driver
driver
HV-DET
B
IC3801 WE u-com
IIC-WE
IIC-TV
IC3604 TV u-com
IIC-TV
SP_DC_PROT
128
126
D_OVP
LB_ERROR
129
ATSC_OVP
127
Digital Box
DTL MDL5V
KDF-55XS955/60XS955
Lamp
11