Sony CDX-GT420U Service Manual page 33

IC803 TPS40200DRG4 (MAIN Board (3/3))
RC 1
SS 2
SOFT-START
OVERCURRENT
COMP 3
FB 4
IC804 TPS2051BDRG4 (MAIN Board (3/3))
GND
1
IN 2
CHARGE
PUMP
IN 3
DRIVER
EN 4
UVLO
IC805 TC7WH123FU(TE12R) (MAIN Board (3/3))
VCC RX/CX CX
8 7 6
1 2 3
A B CLR
CDX-GT420U/GT424U/GT427UE/GT470U/GT470US
UVLO
OSC
E/A AND SS
REFFERENCE
AND
700mV
ENABLE E/A
CS
CURRENT
LIMIT
THERMAL
SENCE
Q
5
4
GND
PWM
LOGIC
DRIVER
OUT
8
7 OUT
6
OUT
5 OC
VDD
8
7 ISNS
6 DRV
5 GND
33