Read Panasonic KX-TGP600RUB / KX-TPA60RUB Service Manual online
16
KX-TGP600RUB/KX-TPA60RUB
4.7.
Circuit Operation (Handset)
4.7.1.
Construction
The circuit mainly consists of DSP part as shown in the block diagram.
4.7.1.1.
DSP: IC1
Function
• Battery Low, Power down detect circuit
• Ringer Generation
• Interface circuit
• Ringer Generation
• Interface circuit
Speaker, Mic, LED, Key, LCD, Flash Memory
• RF part
PLL Oscilator, Detector, Compress/Expander, Amplifier for reception/trnsmission
Start up waves
4.7.1.2.
FLASH MEMORY: IC100
All setting data is stored.
ex: ID code, user setting (Phonebook, program data)
ex: ID code, user setting (Phonebook, program data)
1.6V
36msec
4msec
4msec
BATTERY
Reset (RSTN)
C18 (IC1 pin 53 side)
C18 (IC1 pin 53 side)
1.8 V
1.2 V
3.0 V
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