Sony HCD-HDX265 - POWER BOARD IC BLOCK DIAGRAMS; Power Board IC Block Diagrams

75
HCD-HDX265/HDX266/HDX267W/HDX465/HDX466/HDX665
OVER
CURRENT
PROTECT
2
LOGIC
OSC
INTERNAL BIAS
DELAY
DELAY
LATCH
CURRENT
MIRROR
OVER
CURRENT
PROTECT
2
OVER
CURRENT
PROTECT
1
FEED
BACK
INH
2
INH
1
BOTTOM
SKIP
LOGIC
OCP/INH
1
S/GND
2
DRAIN
3
VCC
4
FB/OCP
5
UNDER VOLTAGE
LOCK OUT
OVER LOAD
PROTECT
THERMAL
SHUT DOWN
OVER VOLTAGE
PROTECT
SWITCHING
REGULATOR
BLOCK
– POWER Board –
IC901 STR-F6138-LF1352 (Except HDX265: E, Australian models)
IC901 STR-F6168-LF1352 (HDX265: E, Australian models)
5 841 2 3
GND
6
FB/OLP
7
N.C.
STARTUP
VCC
D
N.C.
SOURCE/OCP
+
−
–
+
+
−
+
−
+
−
+
−
+
−
Q
S
R
DISCHARGE
BLANKING
BUFFER
TSD
DELAY LATCH
INTERNAL
BIAS
OFF TIMER
PRC LATCH
BURST
FB
OCP
OLP
DRIVE
OVP
UVLO
POWER
MOS FET
IC921 STR-V153