Read Panasonic KX-TS710EXB / KX-TS710EXS Service Manual online
7
KX-TS710EXB/KX-TS710EXS
4.2.
Circuit Operation
4.2.1.
Construction
The circuit mainly consists of DSP as shown in the block diagram.
4.2.1.1.
DSP: IC201
Function
Interface circuit
USB, Speaker, Receiver, MIC, LED, Key
USB, Speaker, Receiver, MIC, LED, Key
4.2.1.2.
EEPROM : IC261
All setting data is stored.
ex. X'tal frequency adjustment value
ex. X'tal frequency adjustment value
4.2.2.
Power Supply Circuit
The power is supplied via USB VBUS as shown below.
4.2.3.
USB Signal
The communication data is sent and received between DSP(10, 11) and D+/D-.
DSP(40) is a terminal to detect the suspend mode.
DSP(25) is a terminal for USB pull-up control.
DSP(40) is a terminal to detect the suspend mode.
DSP(25) is a terminal for USB pull-up control.
Click on the first or last page to see other KX-TS710EXB / KX-TS710EXS service manuals if exist.