7
KX-TG2853BXS/KX-TG2854BXS/KX-TGA280BXS
4 Technical Descriptions
4.1.
Block Diagram (Base Unit)
Analog
Front
End
To TEL_LINE
CN101
A
B
Bridge
Rect
D103
Hook Switch
Q104, Q105
Audio
Caller ID
Interface
CPU
BELL
HOOK
Off-Hook Line Voltage
D/A
A/D
ADPCM
Codec Filter
DSP
Speech Decoding
Speech Encoding
BMC
Burst Decoding
Burst Encoding
RF
Interface
IC701
RXDA
ANT1
ANT2
TXDA
RSSI
SYCL
SYDA
SYEN
RF Module
XTAL
X1
10.368 MHz
SP-AMP
IC402
Flash
Memory
IC501
To AC Adaptor
CN301
Limit
Resistor
CHARGE
CONTACT
3.45V
Reg.
IC301
3.0V
Reg.
Q2
1.8V
Reg.
Q3
3.45V
3.0V
1.8V
Bell
Interface
IC1
BBIC
KX-TG2853/2854 BLOCK DIA
GRAM
(Base Unit)
Summary of Contents for KX-TGA280BXS
Page 2: ...2 KX TG2853BXS KX TG2854BXS KX TGA280BXS ...
Page 6: ...6 KX TG2853BXS KX TG2854BXS KX TGA280BXS 3 Specifications ...
Page 15: ...15 KX TG2853BXS KX TG2854BXS KX TGA280BXS 4 6 Signal Route ...
Page 17: ...17 KX TG2853BXS KX TG2854BXS KX TGA280BXS 5 1 2 Cordless Handset 5 1 3 Charger 5 2 Display ...
Page 18: ...18 KX TG2853BXS KX TG2854BXS KX TGA280BXS 6 Installation Instructions 6 1 Connections ...
Page 22: ...22 KX TG2853BXS KX TG2854BXS KX TGA280BXS 7 1 2 Programming Using the Direct Commands ...
Page 25: ...25 KX TG2853BXS KX TG2854BXS KX TGA280BXS 7 5 Copying Phonebook Items 7 6 Error Message ...
Page 26: ...26 KX TG2853BXS KX TG2854BXS KX TGA280BXS 7 7 Troubleshooting ...
Page 27: ...27 KX TG2853BXS KX TG2854BXS KX TGA280BXS ...
Page 28: ...28 KX TG2853BXS KX TG2854BXS KX TGA280BXS ...
Page 29: ...29 KX TG2853BXS KX TG2854BXS KX TGA280BXS ...
Page 30: ...30 KX TG2853BXS KX TG2854BXS KX TGA280BXS 8 Test Mode 8 1 Test Mode Function Base Unit ...
Page 44: ...44 KX TG2853BXS KX TG2854BXS KX TGA280BXS 11 1 2 Handset ...
Page 45: ...45 KX TG2853BXS KX TG2854BXS KX TGA280BXS 11 1 3 Charger Unit ...
Page 46: ...46 KX TG2853BXS KX TG2854BXS KX TGA280BXS 11 2 Fix the LCD to the Main P C Board Handset ...
Page 57: ...57 KX TG2853BXS KX TG2854BXS KX TGA280BXS Memo ...
Page 62: ...62 KX TG2853BXS KX TG2854BXS KX TGA280BXS Memo ...
Page 80: ...80 KX TG2853BXS KX TG2854BXS KX TGA280BXS 16 3 Cabinet and Electrical Parts Charger Unit ...
Page 82: ...82 KX TG2853BXS KX TG2854BXS KX TGA280BXS 16 4 2 KX TG2854BXS ...
Page 83: ...83 KX TG2853BXS KX TG2854BXS KX TGA280BXS 16 4 3 KX TG280BXS ...