KX-PRW110UAW, KX-PRWA10RUW - Panasonic Telephone Service Manual (repair manual). Page 11

11

The power is supplied to the DECT BBIC, QSPI FLASH MEMORY, FLASH MEMORY, EEPROM and Charge Contact from AC
Adaptor (+5.5 V) as shown in Fig.101. The power supply is as follows;

• DECT BBIC (IC501): 

DC Jack (+5.5 V) 

→ IC302 → IC501

DC Jack (+5.5 V) 

→ IC302 → Q302 → IC501

DC Jack (+5.5 V) 

→ IC302 → D501 → Q501 → IC501

• EEPROM (IC502): 

DC Jack (+5.5 V) 

→ IC302 → IC501→ IC502

• Charge Contact (CHARGE+): 

DC Jack (+5.5 V) 

→ R371 → R372 → D362→ CHARGE+

• QSPI FLASH MEMORY (IC503): 

DC Jack (+5.5 V) 

→ IC302 → IC501 → IC503 

<Fig.101>

AC Adaptor 

DCP

IC302

Q302

IC501 

IC503

IC502

+5.5 V 

1.8 V 

Q301

2.4 V 

CHARGE+

D362

R372

R371

DC

Jack

3.3 V 

DCM

1

2

3

On

DC

S

1.8 V

Reset

(IC501(RSTN))

Off