JVC TH-A75R Service Manual page 72

TH-A75R
4.45 STR-F6667B (IC101) : Switching regulator
• Pin layout
• Block diagram
Vin
4
START
REG.
T.S.D.
1-72 (No.21189)
1 5
O.V.P
LATCH
O.S.C
Vth(2)
-
+
C.amp 2
GND
• Pin function
Pin No Symbol
1 O.C.P/F.B Over current/Feedback terminal
2 S
3 D
4 VIN
5 GND
- O.V.P
- T.S.D
DRIVE
Vth(1)
-
+
C.amp 1
1const
R3
5
Function
Source terminal
Drain terminal
Power supply terminal
Ground terminal
Overvoltage protection circuit
Thermal shutdown circuit
R1 3
D
R2
2
S
1 O0.C.P/F.B