Power Supply Circuit - Panasonic KX-TG6611RUB Service Manual

4.2.2.

Power Supply Circuit

The power is supplied to the DECT BBIC, QSPI 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 (IC7):
DC Jack (+5.5 V) → IC2 → IC7
DC Jack (+5.5 V) → IC2 → Q9 → IC7
DC Jack (+5.5 V) → IC2 → Q8 → IC7
• EEPROM (IC401):
DC Jack (+5.5 V) → IC2 → IC7→ IC401
• Charge Contact (TP16):
DC Jack (+5.5 V) → R56 → R55 → D22→ TP16
• QSPI FLASH MEMORY:
DC Jack (+5.5 V) → IC2 → IC7 → IC431
DCP
DC
DCM
Jack
AC Adaptor
1 DC S
2
1.8 V
3
Reset
(IC7_61pin)
5.5 V
IC2
R56
On
KX-TG6611RU/KX-TG6611UA/KX-TG6611CA/KX-TG6612CA/KX-TGA661RU
2.4 V
Q9
1.8 V
Q8
R55 D22
<Fig.101>
9
2.85 V
3.0 V
IC7
3.0 V
TP16
Off
IC401
IC431