Sony HBD-DZ170 Service Manual page 62

HBD-DZ170/DZ171/DZ175/DZ310/DZ510/DZ610/DZ810
IC901 STR-F6138-LF1352 (POWER Board) (DZ170/DZ171/DZ175)
IC901 STR-F6168-LF1352 (POWER Board) (DZ310/DZ510/DZ610/DZ810)
Reg1
Internal
Bias
62
UVL0
+
OVP
ON=16V
–
OFF=10.5V
TSD
IOLP
+
–
Volp
OSC
Reg3
Current mirror
Reg2
Delay
Rg2
Rg3
Rg1
Delay
Latch
OCP1
+
–
Vocp
INH1
+
–
Vth1
Boottom Skip
Logic
INH2
+
–
OCP2
Vth2
Logic
FB
OCP2
Vocp(BSIN,OUT)
5 FB/OLP
VCC
4
3 D
POWER
MOS FET
2 GND
1 OCP/SYNC