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Model
KX-TG1105RUJ KX-TG1105RUM KX-TG1106RUM KX-TGA110RUJ KX-TGA110RUM
Pages
87
Size
1.84 MB
Type
PDF
Document
Service Manual
Brand
Device
Telephone / DIGITAL CORDLESS PHONE
File
kx-tg1105ruj-kx-tg1105rum-kx-tg1106rum-kx-tga110ru.pdf
Date
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Panasonic KX-TG1105RUJ / KX-TG1105RUM / KX-TG1106RUM / KX-TGA110RUJ / KX-TGA110RUM Service Manual ▷ View online

13 FREQUENCY TABLE (MHz)
BASE UNIT
HANDSET
Channel No
Transmit Frequency
Receive Frequency
Transmit Frequency
Receive Frequency
1
1897.344
1897.344
1897.344
1897.344
2
1895.616
1895.616
1895.616
1895.616
3
1893.888
1893.888
1893.888
1893.888
4
1892.160
1892.160
1892.160
1892.160
5
1890.432
1890.432
1890.432
1890.432
6
1888.704
1888.704
1888.704
1888.704
7
1886.976
1886.976
1886.976
1886.976
8
1885.248
1885.248
1885.248
1885.248
9
1883.520
1883.520
1883.520
1883.520
10
1881.792
1881.792
1881.792
1881.792
Note:
Channel No. 10: In the Test Mode on Base Unit and Handset.
41
KX-TG1105RUJ / KX-TG1105R UM / KX-TG1106R UM / KX-TGA110RUJ / KX-TGA110RUM
14 BLOCK DIAGRAM (BASE UNIT)
KX-TG1105/1106 BLOCK DIAGRAM (BASE UNIT)
Audio
Hook
Switch
Bridge
Rect
 A/D
 D/A
Analog
Front End
CPU
BBIC
HOOK
RXAF
TXAF
DSP
BMC
Speech Encoding
Speech Decoding
RF 
Interface
Burst Building
Burst Decoding
ADPCM
Codec Filter
EEPROM
IC1
SDA
SCL
SYRI
RSSI
SYEN
RXDA
TXDA
J2
J1
IC2
IC3
4.0V
Reg.
2.65V
Reg.
4.0V
2.65V
VUNREG
40
41
28
24
61
9
5
30
11
63
64
6
5
6
4
RF Module
19
5
12
10
31
Limit
Resistor
CHARGE
CONTACT
18
16
XTAL
10.368
MHz
DTXAF
DTXAF
27
26
BBIC
Interface
ANT1
ANT2
to Tel_Line
                A
                B
to AC Adaptor
KX
-T
G110
5RUJ
/
K
X
-T
G
1105R
UM
/
K
X
-T
G
1106R
UM
/
K
X
-T
G
A110R
UJ
/
K
X
-T
G
A1
10RUM
42
15 CIRCUIT OPERATION (BASE UNIT)
15.1. Outline
Base Unit consists of the following ICs as shown in BLOCK DIAGRAM (BASE UNIT) (P.42).
 
·
 
DECT BBIC (Base Band IC): IC2
 − 
Handling all the audio, signal and data processing needed in a DECT base unit
 − 
Controlling the DECT specific physical layer and radio section (Burst Module Controller section)
 − 
ADPCM codec filter for speech encoding and speech decoding (DSP section)
 − 
Echo-cancellation and Echo-suppression (DSP section)
 − 
Any tones (tone, sidetone, ringing tone, etc.) generation (DSP section)
 − 
DTMF receiver (DSP section)
 − 
Clock Generation for RF Module
 − 
ADC, DAC, timer, and power control circuitry
 − 
All interfaces (ex: RF module, EEPROM, LED, Analog Front End, etc.)
 
·
 
RF Module: IC3
 − 
PLL Oscillator
 − 
Detector
 − 
Compress/Expander
 − 
First/Second Mixer
 − 
Amplifier for transmission and reception
 
·
 
EEPROM: IC1
 − 
Temporary operating parameters (for RF, etc.)
 
·
 
Additionally,
 − 
Power Supply Circuit (+4.0V, +2.65V output)
 − 
Crystal Circuit (10.368MHz)
 − 
Charge Circuit
 − 
Telephone Line Interface Circuit
43
KX-TG1105RUJ / KX-TG1105R UM / KX-TG1106R UM / KX-TGA110RUJ / KX-TGA110RUM
15.2. Power Supply Circuit
The power is supplied to the DECT BBIC, RF Module, EEPROM, Relay Coil, LED and Charge Contact from AC Adaptor (+6V)
as shown in Fig.101. The power supply is as follows:
<Fig.101>
44
KX-TG1105RUJ / KX-TG1105R UM / KX-TG1106R UM / KX-TGA110RUJ / KX-TGA110RUM
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