Read Panasonic KX-MB763RU (serv.man2) Service Manual Supplement online
24
KX-MB763RU
3.3.4.
MAIN BOARD (4)
[Changed from original section “16.5. MAIN BOARD (4)”]
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KX-MB763RU 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
0
R214
+5VD
100
R208
K1u
C217
K2700p
C111
K0.022u
C203
K0.1u
C108
K0.1u
C201
ASPCLK
1:7C
+3.3V
DG
K0.1u
C102
L212
BTXD
1:7B
DG
L211
F1M
R103
47k
R119
3.65k(1/2W)
R108
+5VA
1.07k(1/2W)
R104
IC201
3
Input
4
GND
5
Output
2
DET
1
VCC
Z0.1u
C207
DG
RING
1:2G;1:7B
5.1M(2125)
R107
22k
R212
DG
6.3V/330u
C209
K1u
C216
VREF
16V/10u
C212
AFECLK
1:7C;2D
+3.3VA2
HSSPMUTE
1:2H
ABITCLK
1:7B
180k
R217
0
R205
8.2k
R210
27k
R223
1k
R206
47k
R244
0
R203
K0.018u
C204
150k
R220
DG
150k
R200
K0.1u
C210
6.3V/100u
C200
270k
R218
DG
AINT
1:7C
+5VA
K1000p
C220
1M
R215
L209
100k
R207
( )
C214
NC
DP
1:7B
1k
R209
10k
R224
0
R105
IC202
1
AOUT
2
A-IN
3
A+IN
4
V-
5
B+IN
6
B-IN
7
BOUT
8
V+
BSPCLK
1:7C
K0.1u
C107
VREF
L204
DG
1k
R219
ARXD
1:7B
K1000p
C215
L205
NC
(
)
+3.3VA1
+3.3VA1
K0.1u
C100
DAOUT
1:2J;3:11B
+3.3VA2
73.2(1/2W)
R115
L210
L203
Z0.1u
C211
150
R111
5.1M(2125)
R106
DG
K0.1u
C205
L215
K0.1u
C202
AFECLK
1:7C;2J
DG
DG2
15k
R211
BBITCLK
1:7B
180k
R222
IC203
1
CD
2
FC2
3
FC1
4
VIN
5
VO1
6
VCC
7
GND
8
VO2
+3.3V
DG
+3.3VA1
K3300p
C221
K0.1u
C208
DG
ATXD
1:7B
150k
R221
BRXD
1:7B
150k
R201
K1000p
C213
J220p
C218
J220p
C219
AFERST
1:7B;2E
+3.3VA1
DG
50V/1u
C106
+3.3VA2
DG
AFERST
1:7B;2J
DG
DG
K0.1u
C245
L213
L214
L229
L230
3.3k
R245
(
)
R130
NC
F536(3216)
R114
IC101
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
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
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
15M
R112
15M
R113
R246
NC
(
)
DG
0(1608)
L202
120p
C110
120p
C109
8.2k
R253
K0.022u
C247
DG
1M
R254
CNGMUTE
1:5I
R110
( )
NC
R109
( )
NC
K0.01u
C120
K0.01u
C244
33p/250V
C105
33p/250V
C104
Q102
B
C
E
C222
( )
NC
Q200
B
C
E
(
)
R243
NC
DG
R102
R101
56
R136
56
R137
L206
0
C238
L227
0(1608)
L200
0(1608)
10p/250V
C121
(
)
C123
NC
C122
NC
( )
HS-TX
HS-RX
FAX-TX
FAX-RX
I
C
3
0
0
0
0
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