Sony VPL-HS51 Service Manual page 121

GA (1/2)STR-A6169 (IC100)
STARTUP 5
UVLO
+ INTERNAL
– BIAS
OFF TIMER
PWM LATCH
+
S Q
–
BIAS
R
–
+
BURST
+
–
FB
–
+
VPL-HS50/HS51
2
OVP
+
–
LATCH DELAY
TSD
8 D
7 D
POWER MOS FET
DRIVE
OLP
+
–
BLANKING
DISCHARGE
OCP
+ 1 SOURCE/OCP
–
BUFFER
3 GND
4
GA GA
GA (1/2) TK11133CSCL-G (IC102)
5
1
GA (2/2) MZ1540 (IC300)
1
1 2
Drain Gate
6-29 6-29
OVER HEAT &
CONTROL
OVER CURRENT
CIRCUIT
PROTECTION
–
+
BANDGAP
REFERENCE
2
2 3 4 5 6 7 8 9 10 11
3 4 5 6 7 8 9 10
Input Source Zero Drain GND Comparator Vcc Cathode
Voltage Current Output
Sensing Sensing
4
3