KX-TG6511RUB, KX-TG6511RUT, KX-TG6511RUM, KX-TG6512RUB, KX-TGA650RUB, KX-TGA650RUT, KX-TGA650RUM, KX-TGA651RUB, KX-TGA651RUT, KX-TGA651RUM - Panasonic Telephone Service Manual (repair manual). Page 7

Read Panasonic KX-TG6511RUB / KX-TG6511RUT / KX-TG6511RUM / KX-TG6512RUB / KX-TGA650RUB / KX-TGA650RUT / KX-TGA650RUM / KX-TGA651RUB / KX-TGA651RUT / KX-TGA651RUM Service Manual online

7
KX-TG6511RU/KX-TG6512RU/KX-TGA650RU/KX-TGA651RU
4 Technical Descriptions
4.1.
Block Diagram (Base Unit)
Analog
Front
End
To TEL_LINE
Bridge
Rect
 D3
 D3
Hook Switch
Q4,Q5
Q4,Q5
Audio
Bell/Caller ID
Interface
CPU
18
16
23
20
21
19
24
BELL
HOOK
Off-Hook Line Voltage
25
A/D
D/A
ADPCM
Codec Filter
DSP
Speech Encoding
Speech Decoding
BMC
Burst Encoding
Burst Decoding
RF
PLL
5
3
77
75
9
10
EEPROM
SCL
SDA
57
58
44
Charge
Detector
(Optional)
BBIC
IC401
IC7
KX-TG6511/6512 BLOCK DIA
GRAM 
(BASE UNIT)
MOD/DEMOD
Charge
Pump
43
2.5V
XTAL
X1X1
10.368
MHz
IC801
RX
n
RX
p
TX
p
TX
n
P
on
PSEL
V
DD
-PADRV
4
3
6
7
TX
on
RX
on
D801
6
72
ANT1
ANT2
9
8
ANT1
ANT2
RF PA
ANT1
ANT2
78
73
74
80
L1
L2
2
To AC Adaptor
Limit
Resistor
CHARGE
CONTACT
IC2
Q9
Q8
2.4V
Reg.
1.8V
Reg.
3.0 V
2.4 V
1.8 V
DCP
DCM
IC3
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