Sony CDX-G1200U Service Manual page 25

IC1301 BD9876BEFJ-E2
LX 1
GND 2
CURRENT
SENSE AMP
Q
VC 3 S R
SOFT
CURRENT
START
COMPARATOR
ERROR
FB 4
AMP
1.0 V
IC1304 BD2231G-TR
VIN 1
UNDER-VOLTAGE
LOCKOUT
GND 2
CHARGE
EN 3
PUMP SHUTDOWN
OVER-CURRENT DELAY
PROTECTION COUNTER
VREF REFERENCE
REGULATOR
UNDER
VOLTAGE
LOCK OUT
THERMAL
SHUTDOWN
SHUTDOWN
OSCILLATOR
300 kHz
5 VOUT
/EN
THERMAL
4 /OC
CDX-G1200U/G1201U/G1202U/G1280UM
8 VCC
7 BST
6 EN
5 SYNC
25