Marantz NR1606/U1B Service Manual page 87

Operation waveform for each part
After primary side rectification
(Caution: High voltage, electric shock)
OPTION
SMPS unit
(Unloaded)
A
Set
A
(Caution: High voltage, electric shock)
OPTION OPTION
OPTION
IC4140
IC_TOP268VG
B
B
87
Primary drain
After secondary rectifications
T4140
EE2525
OPTION
1 3
2
BKT4142
C
C