Marantz NR1605/U1B - 6. SMPS

NO
NO
NO
Is IC4140 (TOP258MG) damaged?
Are there the damage in D4142 /
D4143 / D4144 / D4145 / IC4140?
Repair the short circuited area(s) by the
soldering of the PCB.
Check the damage of each part.
Replace the damaged part(s).
Replace the damaged part(s).
Has a fuse (F4140) broken?
Are there any short circuits caused by
the soldering of the PCB?
Are any parts damaged?
Replace the IC4140 (TOP258MG) and
D4142 / D4143 / D4144 / D4145.
DC 5V is not output.
YES
YES
YES
YES
YES
YES
6. SMPS
92