Read Panasonic KX-TDA0490XJ / KX-TDA0490X Service Manual online
7 BLOCK DIAGRAM
VoIP BUSY LED
SH4(7750R)
IC400
IC
40
3,
40
5
RJ45
CN201
DPRAM
(1KB)
IC300
DSP
M82510
Midspeed
IC100
ON LINE LED
Serial
DC/DC
CONVERTER
IC800
+15V
3.3V
1.5V
BB_IF
CN200
LPR(SH1)
IC100
FLASH
1MB
IC102
SRAM
512KB
IC103
16
16
8
8
8
nINT
nINT
Lside
Rside
L_nRST
16
16
16
32
SCI_CN
32
BSC
FPGA
IC301
8
PCM Highway
SCI
SDRAM
64MB
IC501,502
FLASH
8MB
IC500
PBX IF
CT Bus
90 Pin
LPR
LED
Green/Red
CARD SATUS LED
HUDI
Xtal
16M
X400
16
VoIP_nRST
CLKIO(66MHz)
BUS TRANS
16
DSP I/F (sub board)
16
CN
PHY
BCM5221
IC202
rMII
Exp_Bus
SDRAM
16MB
IC107
TDM
OSC
10M
X201
EC Bus
2.5V
PWR_nRST
DC/DC CONVERTER
IC105
3.3V
1.2V
CN1
00
OSC
50M
X200
OSC 12M
X100
OSC 16M
X200
RST IC
IC201
REGULATER
IC801
PLD
IC201
PCC-ASIC
IC202
ALARM LED
DATA LED
LINK LED
IP Engine
ASIC
Power Supply
OPT_nRST
KX-TDA0490XJ/KX-TDA0490X BLOCK DIAGRAM
KX
-T
-T
DA0
490X
J
/
KX
-T
-T
DA0
490X
17
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