Read Panasonic KX-TGP600RUB / KX-TPA60RUB Service Manual online
13
KX-TGP600RUB/KX-TPA60RUB
4.5.5.
Reset Circuit
Function:
This circuit is used to initialize the microcomputer when it incorporates an AC adaptor or PoE HUB.
Circuit Operation:
When the AC Adaptor is inserted into the unit, then the voltage is shifted by IC401 and power is supplied to the DSP.
The set starts to operate when VCC goes up to 3.2 V in the circuit voltage diagram.
The set starts to operate when VCC goes up to 3.2 V in the circuit voltage diagram.
4.5.6.
Clock Circuit
Main system clock (13.824MHz) is generated from X100, and Oscillation circuit consists of X100 and IC101.
This clock is used for basic clock of IC101's all internal clock.
This clock is supplied to IC300 via BCLK output of IC101.
X201 is used by IC100 during its boot sequence.
This clock is used for basic clock of IC101's all internal clock.
This clock is supplied to IC300 via BCLK output of IC101.
X201 is used by IC100 during its boot sequence.
12MHz is generated from X101, and Oscillation circuit consists of X201 and IC101.
This clock is used for USB Interface.
This clock is used for USB Interface.
25MHz is generated from X200, and Oscillation circuit consists of X200 and IC200.
This clock is used for Ethernet Interface. And it is used for basic clock of IC200's all internal clock.
This clock is used for Ethernet Interface. And it is used for basic clock of IC200's all internal clock.
AC ADAPTOR
PoE HUB
IC201
IC103
VCC (3.2V)
RESET (IC101)
IC401
VCC(3.2V)
1.8V at IC 101
RESET (IC101)
BCLK (IC101)
IC101
X100
X201
13.824MHz
12MHz
(BCLK) 13.824MHz
TO IC300
IC200
X200
25MHz
Click on the first or last page to see other KX-TGP600RUB / KX-TPA60RUB service manuals if exist.