27
1.3 No Power DDCON / LDO
Please Refer page 24-25 for Ref No.
DDCONs Check *Philippines Only
Check Enable
IC608 #pin4 / R631
Is voltage >2.5V?
1.2 No Power U-Com Failure
Or Change IC608
Change D600
no
no
START
yes
Change DDCON
IC603
Check Vcc voltage
C628
Is voltage >3V?
yes
Check
D600
Is diode alive?
no
yes
Check 3.3V_STBY.
Power board
Change D601
no
Check Vcc voltage
C628
Is voltage >4V?
yes
Check
D601
Is diode alive?
no
yes
Check 5V_MAIN DDCON (IC600)
Check IC600 Vcc voltage
C601
Is voltage >12V?
no
yes
Board
Operation
IC Ref
Voltage supply
BM5S21
DC/DC
IC603
1.0V_TU_P
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
27
SYS SET
2021/02/04 23:38:48 (GMT+09:00)