Panasonic KT-TS2388RUB Service Manual page 10

KX-TS2388RUB/KX-TS2388RUW/KX-TS2388CAB/KX-TS2388CAW/KX-TS2388UAB/KX-TS2388UAW
4.2.5. Initializing Circuit
4.2.5.1. Function
This circuit is used to initialize the CPU when the batteries are installed.
4.2.5.2. Circuit Operation
When the batteries is inserted into the unit, then the voltage is regulated by IC302 and power is supplied to the CPU. The set
can operate in the circuit voltage diagram.
Q862
Reset
R862
R833
Stop
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Reset Circuit
(2AP PCB)
VCC
IC861
1 VOUT 4
GND
C862
2 VCC 3
NC
Vcc
IC801 (105)
Stop
IC801 (81)
Reset
IC801 (50)
IC302
VIN
5 1
VOUT
2
GND
STBY
4 3
NC
3.3 V
3.3 V
3.3 V
2.7 V
CPU Reset
10
Regulator
(1AP PCB)
Battery 4.5V