7
KX-TG8411HGB/KX-TGA840FXB
4 Technical Descriptions
4.1.
Block Diagram (Base Unit)
Analog
Front
End
T
o TEL_LINE
Bridge
Rect
D3D3
Hook Switch
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
To AC Adaptor
Limit
Resistor
Charge
Detector
CHARGE
CONTACT
(Optional)
VUNREG
3.0V
Reg.
IC1
2.4V
Reg.
Q9
1.8V
Reg.
Q8
3.0 V
2.4 V
1.8 V
BBIC
IC401
IC7
KX-TG8411 BLOCK DIAGRAM
(BASE UNIT)
MOD/DEMOD
Charge
Pump
43
2.5V
X
T
A
L
X
1
X1
1
0.3
68
M
H
z
IC
801
R
X
n
R
X
p
T
X
p
T
X
n
P
on
P
S
E
L
V
DD
-P
A
D
R
V
4
3
6
7
T
X
on
R
X
on
D801
6
72
AN
T1
AN
T2
9
8
AN
T1
ANT2
R
F
P
A
ANT1
AN
T2
78
73
74
80
L
1
L2
L1
L2
2
Содержание KX-TG8411HGB
Страница 2: ...2 KX TG8411HGB KX TGA840FXB ...
Страница 14: ...14 KX TG8411HGB KX TGA840FXB 4 6 Signal Route ...
Страница 15: ...15 KX TG8411HGB KX TGA840FXB 5 Location of Controls and Components 5 1 Controls 5 1 1 Base Unit 5 1 2 Handset ...
Страница 22: ...22 KX TG8411HGB KX TGA840FXB 7 6 Troubleshooting ...
Страница 23: ...23 KX TG8411HGB KX TGA840FXB Cross Rreference For Service Hint P 26 ...
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Страница 25: ...25 KX TG8411HGB KX TGA840FXB ...
Страница 26: ...26 KX TG8411HGB KX TGA840FXB 7 7 For Service Hint Cross Reference Battery Charge P 16 ...
Страница 27: ...27 KX TG8411HGB KX TGA840FXB 8 Service Mode 8 1 Engineering Mode 8 1 1 Base Unit ...
Страница 29: ...29 KX TG8411HGB KX TGA840FXB 8 1 2 Handset ...
Страница 38: ...38 KX TG8411HGB KX TGA840FXB Cross Reference Check Point Base Unit P 46 ...
Страница 40: ...40 KX TG8411HGB KX TGA840FXB Cross Reference Check Point Handset P 50 ...
Страница 55: ...55 KX TG8411HGB KX TGA840FXB 10 1 2 Handset ...
Страница 56: ...56 KX TG8411HGB KX TGA840FXB 10 1 3 Charger Unit ...
Страница 57: ...57 KX TG8411HGB KX TGA840FXB 10 2 How to Replace the Handset LCD ...
Страница 79: ...79 KX TG8411HGB KX TGA840FXB Memo ...
Страница 92: ...92 KX TG8411HGB KX TGA840FXB 15 3 Cabinet and Electrical Parts Charger Unit ...
Страница 93: ...93 KX TG8411HGB KX TGA840FXB 15 4 Accessories and Packing Materials 15 4 1 KX TG8411HGB ...
Страница 94: ...94 KX TG8411HGB KX TGA840FXB 15 4 2 KX TGA840FXB ...