Back Board; No.1 - Panasonic KX-NCP500GR Service Manual

13.18. Back Board

13.18.1. No.1

1
A
CN100
A1 RINGER
RINGER
B1 nCS_SYNC_B
nCS_SYNC_B
A2 RING_SYNC
RING_SYNC
B2
nHALT
A3
GND
B3
GND
A4
GND
B4
GND
A5
nLOS
B5 AC_ALM
AC_ALM
B
A6 nFAN_ALM
nFAN_ALM
B6 DC_ALM
DC_ALM
A7 CT_NETREF
CT_NETREF
B7
CTS1
A8 CT_FRAME
CT_FRAME
B8
RXD1
A9 CT_D[6]
CT_D[6]
B9 nLEDALM
nLEDALM
A10 CT_D[7]
CT_D[7]
B10
DSR
A11
GND
B11
GND
A12
GND
B12
GND
CT_D[4]
A13
CT_D[4]
B13
+3.3V
A14 CT_D[5]
CT_D[5]
B14
DCD1
CT_D[2]
A15
CT_D[2]
B15
DTR
A16 CT_D[3]
CT_D[3]
B16 nLEDRUN
nLEDRUN
A17 CT_D[0]
CT_D[0]
B17
TXD1
A18 CT_D[1]
CT_D[1]
C
B18
RTS1
A19
GND
B19
GND
A20
GND
B20
GND
A21
EC_nINT
B21
CT_C8
A22 EC_nCDET
EC_nCDET
B22
EC_CLK
A23
EC_AD[14]
B23 EC_nTRDY
EC_nTRDY
A24
EC_AD[15]
B24 EC_nSTOP
EC_nSTOP
A25
EC_AD[12]
EC_nFRAME
B25
EC_nFRAME
A26
EC_AD[13]
EC_nPERR
B26
EC_nPERR
A27
EC_AD[10]
B27 EC_nCBE[0]
EC_nCBE[0]
A28
EC_AD[11]
B28
EC_PAR
A29
EC_AD[8]
B29
EC_nRST
A30
EC_AD[9]
B30 EC_nCBE[1]
D EC_nCBE[1]
A31
EC_AD[6]
B31
EC_AD[1]
A32
EC_AD[7]
B32
EC_AD[0]
A33
EC_AD[4]
B33
EC_AD[3]
A34
EC_AD[5]
B34
EC_AD[2]
A35
+15VPT
B35
POWERGND
A36
+15V
B36
+40V
A37
+15VPT
B37
POWERGND
A38
+15V
B38
+40V
A39
+15VPT
B39
POWERGND
A40
+15V
B40
POWERGND
PG
DG
E
+40V +15VPT
J100 0
J101 0 C100 0.1u
J102 0 C101 0.1u
J103 0 C102 0.1u
J104 0 C103 0.1u
J105 0 C104 0.1u
J106 0 C105 0.1u
J107 0 C106 0.1u
J108 0 C107 0.1u
F
J109 0 C108 0.1u
C109 0.1u
DG
FG
DG
2
nHALT
nLOS
CTS1
RXD1
DSR
+3.3V
DCD1
DTR
TXD1
RTS1
EC_nINT
CT_C8
EC_CLK
EC_AD[14]
EC_AD[15]
EC_AD[12]
EC_AD[13]
EC_AD[10]
EC_AD[11]
EC_PAR
EC_AD[8]
EC_nRST
EC_AD[9]
EC_AD[6]
EC_AD[1]
EC_AD[7]
EC_AD[0]
EC_AD[4] +15V
EC_AD[3] +15VPT
EC_AD[5]
+40V
EC_AD[2]
+40V
+15V +3.3V
C110 0.1u C119 0.1u C126 0.1u
C111 0.1u C120 0.1u C127 0.1u
C112 0.1u C121 0.1u C128 0.1u
C113 0.1u C122 0.1u C129 0.1u
C114 0.1u C123 0.1u C130 0.1u
C115 0.1u C124 0.1u C131 0.1u
C116 0.1u C125 0.1u C132 0.1u
C117 0.1u C133 0.1u
DG
C118 0.1u C134 0.1u
PG
C135 0.1u
DG
DG
3
C143
220uF
C144
220uF
PG
C136 0.1u
C137 0.1u
C138 0.1u CN100
C139 0.1u
C140 0.1u
C141 0.1u
C142 0.1u
DG
KX-NCP500GR SCHEMATIC DIAGRAM No.1 (1/2)
121
4 5
+40V
+15VPT
CN102
A1
A2
A3
PG
EC_CLK
A4
A5
EC_nTRDY
A6
EC_nFRAME
A7
EC_nCBE[0]
A8
EC_AD[5]
A9
A10 B10
EC_AD[0]
A11 B11
EC_AD[2]
A12 B12
EC_AD[4]
A13 B13
A14 B14
EC_AD[6]
A15 B15
EC_AD[8]
A16 B16
EC_AD[10]
A17 B17
A18 B18
EC_AD[12]
A19 B19
EC_AD[14]
A20 B20
EC_nINT
A21 B21
A22 B22
CT_D[0]
A23 B23
CT_D[2]
A24 B24
CT_D[4]
A25 B25
CT_D[6]
A26 B26
A27 B27
CT_NETREF
A28 B28
CT_FRAME
A29 B29
A30 B30
Reserve-A31
A31 B31
Reserve-A32
A32 B32
Reserve-A33
A33 B33
nVM_DHW
A34 B34
Reserve-A35
A35 B35
nBATT
A36 B36
nFAN_ALM
A37 B37
+30V
A38 B38
RINGER
A39 B39
nHALT
A40 B40
A41 B41
DC_ALM
A42 B42
A43 B43
DIAG_R
A44 B44
A45 B45
POWERTYPE[0]
DG
RFS2
RFS2(CN102)
RFS1(CN103)
IPCMPR(CN104)
KX-NCP500GR
(1)
(2)
+15V
+15VPT
B1
B2
B3
PG
EC_nSTOP
B4
B5
EC_nPERR
B6
EC_PAR
B7
EC_nCBE[1]
B8
EC_nRST
B9
EC_AD[1]
EC_AD[3]
EC_AD[5]
EC_AD[7]
EC_AD[9]
EC_AD[11]
nVM_CLK
EC_AD[13]
EC_AD[15]
EC_nCDET
nVM_FH
CT_D[1]
CT_D[3]
CT_D[5]
CT_D[7]
MASTER/nS
CT_C8
nLOS
Reserve-B31
Reserve-B32
Reserve-B33
nVM_UHW
Reserve-B35
Reserve-B36
Reserve-B37
+30V
+3.3V
RING_SYNC
nCS_SYNC_B
(3)
AC_ALM
DIAG_T
RINGER_AC
POWERTYPE[1]
DG