Read Panasonic KX-MB263RU / KX-MB263UA (serv.man6) Service Manual Supplement online
24
KX-MB263RU/KX-MB263UA
3.3.4.
MAIN BOARD (4)
[Changed from original section “15.5. MAIN BOARD (4)”]
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(2)
(3)
(4)
(4)
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KX-MB263RU/KX-MB263UA SCHEMATIC DIAGRAM (MAIN BOARD No.04) (1/2)
4
-1
1/2
CID
MONITOR_RX:
TONE
HS RX:
HS TX:
MONITOR_RX:
FAX-TX,RX
:
HS
-TX,RX
:
C
E
B
A
D
F
3
2
1
4
5
L208
NC
( )
R214
NC
( )
+5VD
R208
NC
(
)
C217
NC
( )
C111
NC
(
)
C203
NC
( )
C108
NC
(
)
C201
NC
(
)
ASPCLK
1:7C
+3.3V
DG
C102
NC
(
)
L212
NC
(
)
BTXD
1:7B
DG
L211
NC
( )
R103
NC
(
)
R119
NC
(
)
R108
NC
(
)
+5VA
R104
NC
(
)
IC201
NC
NC
3
Input
4
GND
5
Output
2
DET
1
VCC
C207
NC
(
)
DG
RING
1:2G;1:7B
R107
NC
(
)
R212
NC
( )
DG
C209
NC
(
)
C216
NC
( )
VREF
C212
NC
(
)
AFECLK
1:7C;2D
+3.3VA2
HSSPMUTE
1:2H
ABITCLK
1:7B
R217
NC
( )
R205
NC
( )
R210
NC
(
)
R223
NC
( )
R206
NC
(
)
R244
NC
(
)
R203
NC
(
)
C204
NC
( )
R220
NC
(
)
DG
R200
NC
(
)
C210
NC
(
)
C200
NC
(
)
R218
NC
(
)
DG
AINT
1:7C
+5VA
C220
NC
( )
R215
NC
(
)
L209
NC
( )
R207
NC
(
)
( )
C214
NC
DP
1:7B
R209
NC
( )
R224
NC
( )
R105
NC
(
)
IC202
NC
1
AOUT
2
A-IN
3
A+IN
4
V-
5
B+IN
6
B-IN
7
BOUT
8
V+
BSPCLK
1:7C
C107
NC
NC
(
)
VREF
L204
NC
(
)
DG
R219
NC
( )
ARXD
1:7B
C215
NC
( )
L205
NC
(
)
+3.3VA1
+3.3VA1
C100
NC
(
)
DAOUT
1:2J;3:11B
+3.3VA2
R115
NC
(
)
L210
NC
( )
L203
NC
( )
C211
NC
(
)
R111
NC
(
)
R106
NC
(
)
DG
C205
NC
( )
L215
NC
( )
C202
NC
(
)
AFECLK
1:7C;2J
DG
DG2
R211
NC
( )
BBITCLK
1:7B
R222
NC
(
)
IC203
NC
1
CD
2
FC2
3
FC1
4
VIN
5
VO1
6
VCC
7
GND
8
VO2
+3.3V
DG
+3.3VA1
C221
NC
( )
C208
NC
(
)
DG
ATXD
1:7B
R221
NC
(
)
BRXD
1:7B
R201
NC
(
)
C213
NC
( )
C218
NC
( )
C219
NC
( )
AFERST
1:7B;2E
+3.3VA1
DG
C106
NC
(
)
+3.3VA2
DG
AFERST
1:7B;2J
DG
DG
C245
NC
(
)
L213
NC
( )
L214
NC
( )
L229
NC
(
)
L230
NC
( )
R245 (
)
NC
(
)
R130
NC
R114
NC
( )
IC101
NC
1
QE
2
DCT
3
RX
4
IB
5
C1B
6
C2B
7
VREG
8
RNG1
9
RNG2
10
VREG2
11
SC
12
QE2
13
QB
14
DCT3
15
IGND
16
DCT2
IC100
NC
1
MCLK
2
*FSYNC
3
SCLK
4
VD
5
SDO
6
SDI
7
FC/*RGDT
8
*RESET
9
C2A
10
C1A
11
AOUT/*INT
12
GND
13
VA
14
M0
15
*RGDT/FSD/M1
16
*OFHK
IC200
NC
1
SPKRR
2
MBIAS
3
HDST
4
SDI
5
SDO
6
*FSYNC
7
MCLK
8
SCLK
9
*RESET
10
MIC
11
LINEI
12
VD
13
VA
14
GND
15
LINEO
16
SPKRL
R112
NC
(
)
R113
NC
( )
R246
NC
(
)
DG
L202
NC
( )
C110
NC
( )
C109
NC
(
)
R253
( )
NC
C247
NC
( )
DG
R254
NC
(
)
CNGMUTE
1:5I
R110
( )
NC
R109
( )
NC
(
)
C120
NC
C244 (
)
NC
C105
NC
( )
C104
NC
( )
Q102
NC
B
C
E
C222
( )
NC
Q200
NC
B
C
E
(
)
R243
NC
DG
R102
NC
(
)
R101
NC
(
)
( )
R136
NC
( )
R137
NC
L206
NC
(
)
C238
NC
( )
L227
NC
(
)
L200
NC
( )
C121
NC
( )
(
)
C123
NC
C122
NC
( )
HS-TX
HS-RX
FAX-TX
FAX-RX
I
C
3
0
0
0
0
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