Sony XBR-55X900H Service Manual page 25
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- Service manual (108 pages) ,
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- Reference manual (29 pages)
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2020/06/27 06:31:32 (GMT+09:00)
1.3 No Power DDCON/LDO
BM5 and BM5S Board Model
Board
Operation IC Ref
BM5/BM5S
LDO
BM5/BM5S
LDO
BM5/BM5S
DC/DC
BM5/BM5S
DC/DC
BM5/BM5S
DC/DC
BM5/BM5S
DC/DC
BM5/BM5S
DC/DC
BM5/BM5S
DC/DC
BM5/BM5S
DC/DC
BM5/BM5S
LDO
BM5/BM5S
DC/DC
BM5/BM5S
DC/DC
BM5/BM5S
LDO
BM5/BM5S
DC/DC
BM5/BM5S
DC/DC
SECTION 1
T R O U B L E S H O O T I N G
Voltage supply
IC400
5.0V_MAIN_H
IC403
3.3V_MAIN_H
IC600
5V_MAIN/5V_AUDIO
IC601
3.3V_MAIN/3.3V_AUDIO
IC603
1.0V_TU_P
IC801
1.1V_M5_DDR
IC802
0.9V_M5_STBY
IC803
1.8V_STBY
IC804
0.8V_M5_CORE
IC806
1.8V_M5_ET_STBY
IC807
1.8V_M5
IC808
1.0V_M5
IC809
3.3V_M5_STBY
IC810
0.8V_M5_CPU
IC811
0.8V_M5_GPU
SECTION 2
S E C T I O N 3
Checking item summary
Output ref.
Enable pin
C414/CL400
R408(shorted)
C416/CL402
R413(shorted)
C610/JL601
R600(shorted)/CL604
C619/JL603
R610(shorted)/CL605
C630/CL607
R631(shorted)/JL607
C806/JL801
R913(shorted)
C809/CL803
R908(shorted)
C812/CL811
R822(shorted)
C846/JL803
R849(shorted)/CL816
C818/JL808
R832(shorted)
C823/JL811
R833(shorted)/CL827
C829/JL813
R839(shorted)/CL828
C816/CL831
R917
C861/JL816
R914/CL829
C874/JL818
R915/CL830
SECTION 3
SECTION 4
Enable source
Fuse
P_ON_#2
F400
P_ON_#2
P_ON_#2
F600
P_ON_#2
F601
P_ON_#2 or IC1000 #AL18
(EWS_PWR_ON)
R804/R907 (3.3V_STBY)
R804/R907 (3.3V_STBY)
R804 (3.3V_STBY)
P_ON_#1
F802
IC1000 #AN19
(ETHER_PWR_EN)
P_ON_#2
F800
P_ON_#2
F801
R917(3.3V_STBY)
P_ON_#2
F803
P_ON_#2
F804
P_ON_#1 : P-on u-com IC401 #pin12
P_ON_#2 : P-on u-com IC401 #pin13
SECTION 5
SECTION 6
Vcc ref.
C413
-
C415
C601
C618
-
C628
-
C801/CL819
-
C807/CL822
-
C810/CL824
C831
-
C817/CL826
C822
C828
-
C815
C855
C868
25
SYS SET
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