Sony MHC-V11 Service Manual page 42

MHC-V11
• IC Block Diagrams
– MAIN Board –
U1 EUP3490
U2 EUP3504
MHC-V11
U4 SY8089A
U10 G527
Output Reverse-Voltage Output Reverse-Voltage
IN IN
Under Under
Voltage Voltage
Lockout Lockout
EN(EN) EN(EN)
Bandgap Bandgap
Reference Reference
GND GND
42 42
Protection Protection
NMOS NMOS
Switch Switch
Over-Temperature Over-Temperature
Charge Charge
Protection Protection
Pump Pump
Current Current
Limit Limit
OUT OUT
FLAG FLAG
SET SET