6. SMPS
DC 5V is not output.
Is IC901 (TOP268EG) damaged?
NO
Is the fuse (F9001) functioning properly?
NO
Are there any short circuits caused by the
soldering on the PCB?
NO
Are any parts damaged?
YES
Replace the IC901 (TOP268EG) and
D9001 - D9004.
YES
Is IC901 (TOP268EG) and D9001 - D9004
damaged?
YES
Repair the short circuited area on the
PCB.
YES
Check the damaged parts.
114
YES
Replace the damaged part.
YES
Replace the damaged part.