Read Panasonic KX-TG8288UAT / KX-TG8287UAT / KX-TGA828UAT / KX-TGA828RUT Service Manual online
7
KX-TG8288UAT/KX-TG8287UAT/KX-TGA828UAT/KX-TGA828RUT
4 Technical Descriptions
4.1.
Block Diagram (Base Unit)
TX
LINE1
T
R
CN101
CN301
Bridge
PC102
Q101, Q102
D101
HOOK
SW
Hybrid
Q105
CPU
Analog Front End 1
D/A
A/D
Analog Front End 2
D/A
A/D
Burst Encoding
Burst Decoding
Speech Encoding
Speech Decoding
RF
Interface
28
26
TXDA
RXDA
25
12
40
36
RSSI
SYCL
SYDA
SYEN
ANT1
ANT2
RF Module
18
16
31
2
8
21
14
13
12
EEPROM
SCL
CS
CS
42
83
80
79
94
84
SDA
6
5
66
67
9
10
11
23
12
102
100
101
11
Caller ID
Bell
L1 Bell
RX
TX
RX
81
AC Adaptor
3.3V Reg.
4V Reg.
3V Reg.
2.5V Reg.
1.8V Reg.
3.3V
4V
2.5V
1.8V
3V
BBIC
IC502
Q302
Q301
IC302
IC301
IC303
IC101-2
IC101-1
IC102-1
LINE2
T
R
CN201
Bridge
Q201, PC202
D201
HOOK
SW
Hybrid
Q205
118
110
114
13
Caller ID
Bell
In use
In use
L2 Bell
L2 Bell
L1 Bell
41
IC201-2
IC201-1
IC102-2
SP-Phone/TAM
DATA Bus
Address Bus
IC601
Flash (Program)
IC603
LCD Drive
IC607/IC608
LED Drive
IC606
Key matrix
IC605
4
3
2
8
1
Flash (TAM)
TAM-RESET
SPI CLK
SPI DI
SPI DO
IC602
IC501
IC801
KX-TG8288 BLOCK DIA
GRAM (BASE UNIT)
21
22
XTAL
X
5
0
1
10.368MHz
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