Denon S-101 Service Manual page 36

BD9781HFP (IC810: 1U-3695)
B D 9 7 8 1 H V F P
1 2 3 4
BD9002HFP (IC811: 1U-3695)
B D 9 0 0 2 H V F P
1 2 3
BD4828G (IC203: 1U-3694)
1 5 N.C .
V
OUT
V 2
DD
G ND 3 4 N.C .
5~35V
220μF
24KΩ
10KΩ
5 6 7
4 5 6 7
V
IN
1
1μF
Vref
SOFT
START
ERROR AMP PWM
INV
6 COMPARATOR
150KΩ
Vref
4700μF
OSC
5
FB
RT
3
390KΩ
0 1μF
1
V
IN
Vref
ERROR AMP PWM
3
COMPARATOR
INV
RESET
Vref
OSC
6
SS
5
FB
RT
7
LM3671 (IC912: 1U-3694)
V 1 5 SW
IN
GND 2
EN 3 4 FB
36
EN/SYNC
7
ON/OFF
L:OFF
H:ON
SYNC
DRIVER
LATCH
SW
2
RESET
TSD
V
IN
CURRENT LIMIT 4
GND
UVLO
DRIVER
LATCH
2
SW
TSD
V
IN
CURRENT LIMIT 4
GND
S-101
33μH
VO
330μF