24
1.3 No Power DDCON / LDO
Check Item Summary
Board
Operation
IC Ref
Voltage supply
Output ref.
Enable pin
Enable source
Fuse
Vcc ref.
BM5S21
DCDC
IC418
5.0V_STBY_H
C508/JL1212
R557
R557(3.3V_STBY)
-
C505
BM5S21
LDO
IC403
3.3V_MAIN_H
C416/CL402
R413(shorted)
P_ON_#2
-
C415
BM5S21
DC/DC
IC600
5V_MAIN/5V_AUDIO
C610/JL601
R600(shorted)/CL604
P_ON_#2
F600
C601
BM5S21
DC/DC
IC601
3.3V_MAIN/3.3V_AUDIO
C619/JL603
R658/CL605
R658(1.8V_BE_DDC)
F601
C618
BM5S21
DC/DC
IC603
1.0V_TU_P
C630/CL607
R631(shorted)/JL607
P_ON_#2 or IC1000 #AL18
(EWS_PWR_ON)
-
C628
BM5S21
DC/DC
IC801
1.1V_M5_DDR
C806/JL801
R913(shorted)
R804/R907 (3.3V_STBY)
-
C801/CL819
BM5S21
DC/DC
IC802
0.9V_M5_STBY
C809/CL803
R908(shorted)
R804/R907 (3.3V_STBY)
-
C807/CL822
BM5S21
DC/DC
IC803
1.8V_STBY
C812/CL811
R822(shorted)
R804 (3.3V_STBY)
-
C810/CL824
BM5S21
DC/DC
IC804
0.8V_M5_CORE
C846/JL803
R849(shorted)/CL816
P_ON_#1
F802
C831
BM5S21
LDO
IC806
1.8V_M5_ET_STBY
C818/JL808
R832(shorted)
IC1000 #AN19
(ETHER_PWR_EN)
-
C817/CL826
BM5S21
DC/DC
IC807
1.8V_M5
C823/JL811
R833(shorted)/CL827
P_ON_#2
F800
C822
BM5S21
DC/DC
IC808
1.0V_M5
C829/JL813
R839(shorted)/CL828
P_ON_#2
F801
C828
BM5S21
LDO
IC809
3.3V_M5_STBY
C816/CL831
R917
R917(3.3V_STBY)
-
C815
BM5S21
DC/DC
IC810
0.8V_M5_CPU
C861/JL816
R914/CL829
P_ON_#2
F803
C855
BM5S21
DC/DC
IC811
0.8V_M5_GPU
C874/JL818
R915/CL830
P_ON_#2
F804
C868
P_ON_#1 : P-on u-com IC401 #pin12
P_ON_#2 : P-on u-com IC401 #pin13
T R O U B L E S H O O T I N G
SAFETY NOTES
SELF DIAGNOSTIC FUNCTION
TROUBLESHOOTING
SERVICE ADJUSTMENT
DIAGRAM
HANDLING GUIDE
24
SYS SET
2021/02/04 23:38:48 (GMT+09:00)