Marantz NR1506 /U1B Service Manual page 81

Operation waveform for each part
A
After primary side rectification
(Caution: High voltage, electric shock)
OPTION
OPTION
SMPS unit
(Unloaded)
A
Set
A
(Caution: High voltage, electric shock)
OPTION
OPTION
IC4140
IC_TOP268VG
81
B
Primary drain
T4140
EE2525
OPTION
B
B
C
After secondary rectifications
1 3
2
BKT4142
C
C