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ELECTRICAL TROUBLESHOOTING GUIDE
No 3.3V_NOR
No 1.5V_DDR
Is the VCC
3.3 VA supplied to IC209
pin5?
Is the VCC
12 VA supplied to IC206
pin1?
Is there any voltage
on IC209 pin4?
Is there any voltage
on IC206 pin5?
Refer to No 3.3VA_MICOM.
Check 12 VA on SMPS board.
Check IC209 and replace.
Check IC206 and replace.
Check PWR_CTL5 or voltage on IC302 (Micom).
Check PWR_CTL4 or voltage on IC302 (Micom).
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
POWER SUPPLY ON MAIN BOARD