Read Panasonic KX-NCP1290CJ (serv.man2) Service Manual online
5
KX-NCP1290CJ
3 Technical Descriptions
3.1.
Block Diagram
20MH
z
Line Interface Block
CLKOUT(4.096MHz or
2.048MHz)
DSTi
DSTo
nF0b
nC4b
D[7:0]
A[4:0]
nIRQ
LOS
nRxMF
nTxMF
nRES
E1.5o/C1.5o
TX+
TX-
RX+
RX
-
DPLL IC302
f=12.288MHz
(CPU)
IC1
nIRQ1
nRES
nBREQ
nBACK
nWAIT
nIRQ0
PB[0]
nIRQ2
nIRQ3
nIRQ4
nIRQ5
PB[3]
RXD
TXD
PA[11]
PB[10]
Decode
r
(ASIC)
IC2
EC_CLK
EC_AD[15:0
]
EC_BE[1:0]
EC_FRAME
EC_TRDY
EC_STOP
EC_INT
EC_PART
EC_PERR
EC_nRST
EC_IDSEL
EC_DET
LDHW[1:0]
LUHW[1:0]
HW_FH
HW_CLK0
HW_CLK1
L_NETREF
SHW_FH
CT_NETREF
nCT_FRAME_
A
CT_CLK_A
CT_D[7:0]
TCK
TDI
TDO
TMS
TRST
P2[7]
nRESE
T
PLLCL
K
P0[7:0]
P1[3:0]
P2[0]
P2[1]
P2[6]
P3[0]
P3[4]
nCS_DMA
LD[7:0]
LA[12:0]
nRD
,nWR
nCSI
nCS[0]
nIRQ[1]
nIRQ[0]
P2[3]
P2[2]
nLRST
nBREQ
nBACK
nWAIT
+3.3V
J
u
mpe
r
Status
Indecation
x
5
Local
Reset
JTAG
RJ45
(C
O/EXT)
DHW0/DHW1(2.048Mbps)
UHW0/UHW1(2.048Mbps)
CLKOUT(4.096MHz or 2.048MHz)
nSHW_FH(8kHz)
nINT_ISD
DHW0
UHW0
nHW_FH(8kHz)
HW_CLK0(4M)
D7-0
A4-6
nRD,nWR
nCS_ISDN
nINT_ISDN
LOS
nRxMF
nTxMF
ISDN_RST
+3.3V
nREST
20MH
z
+3.3V
Flash
4Mbit
(256k x 16)
SRAM
4Mbit
(256k x 16)
+3.3
V
+
3.3V
+
3.3V
D15-0
A19-0
nRD
nWR
nLBS
nCS0
nCS1
nCS2
nCS3
nCS6
12.288M
z
nINT_ISDN
nINT_DSP
LOS
nRxMF
RYnBY
nCS_ISDN
nCS_DSP
+3.3
v
ISDN_RST
DSP_nRST
nTxMF
LOOPB
HRDY
nCS_DMA
D7-0
AIZ-0
nRD_nWR
nCS1
nINT_ISDN
nCS[0]_S
+3.3V
nRST
nHALT
EC_bus
28
H100 bus
11
CT
_
LO
OSC
16.384MHz
nRESET
RYnBY
nRESE
T
D15-0
A18-1
nWR,nRD
nCS0
D15-0
A18-1
nWR,nRD,nLBS,A0
nCS2
A10
nCS[0]_S
+15V
(PRI-
IC
)
IC301
Serge
EMC
Serge
EMC
Termination
Termination
Transforme
r
Transforme
r
Power
Thermisto
r
DC/DC
Converte
r
KX-NCP1290CJ BLOCK DIAGRAM
IC3
IC5
Click on the first or last page to see other KX-NCP1290CJ (serv.man2) service manuals if exist.