Sony NV-U74 Service Manual page 36

NV-U74
IC3005 TPS61027DRCR
EN 1
BACKGATE
CONTROL
VOUT 2
–
FB 3
+
+
ERROR
–
AMP
LBO 4
–
+
GND 5
LOW BATTERY
COMPARATOR
IC3504 TPA2010D1YZFR
INTERNAL
OSCILLATOR
+
PWM
BRIDGE
–
BIAS
CIRCUITRY
1 2 3 4
IC4502, 4503 SN74LVC2G53DCUR
1
COM SWITCH
SWITCH
INH 2
GND 3
GND 4
36
OSCILLATOR
CONTROL
TEMPERATURE
LOGIC
CONTROL
REGULATOR
GATE VMAX
CONTROL CONTROL
ANTI-
+
–
RINGING
H-
5 6 7 8 9
8
VCC
7
Y1
6 Y2
5 A
10 PGND
9 SW
8 PS
7 LBI
6 VBAT
IC4501 S-T111B33MC-OGSTFG
ON/OFF 1
VSS
2
NC
3
OVER CURRENT
PROTECTOR
REFERENCE
ON/OFF
VOLTAGE CIRCUIT
CIRCUIT
5 VIN
4 VOUT