Denon DVD-2910 Service Manual page 78

TOP245Y (IC901)
CONTROL (C)
Z C
SHUNT REGULATOR/
ERROR AMPLIFIER
I FB
CURRENT
ADJUST
EXTERNAL
CURRENT LIMIT (X)
LINE-SENSE (L)
FREQUENCY (F)
R E
BD4730G (IC319)
Tab Internally
Connected to
SOURCE Pin
V C
+
- 5.8 V
-
4.8 V
+ 5.8 V
INTERNAL UV
COMPARATOR
V I (LIMIT)
LIMIT
SOFT
START
ON/OFF
V BG + V T
STOP LOGIC
1 V
V BG
STOP SOFT-
OV/UV
START
LINE D MAX
DC MAX
SENSE DC MAX
CLOCK
HALF
SAW
FREQ.
OSCILLATOR WITH JITTER
LIGHT LOAD
FREQUENCY
REDUCTION
5 4
TOP
VIEW
1 2 3
V
CC
5
V
OUT
4
Vref
3
GND
7 D
5 F
4 S
3 X
2 L
1 C
0
INTERNAL
SUPPLY
1
SOFT START
÷ 8
SHUTDOWN/
AUTO-RESTART
HYSTERETIC
THERMAL
SHUTDOWN
S Q
-
R
+
PWM
COMPARATOR
µCOM RESET
78
DVD-2910/955
DRAIN (D)
-
+
CURRENT LIMIT
COMPARATOR
CONTROLLED
TURN-ON
GATE DRIVER
LEADING
EDGE
BLANKING
SOURCE (S)
PI-2639-060600