Panasonic KX-MB283RU / KX-MB783RU (serv.man4) Service Manual / Supplement ▷ View online
9
KX-MB283RU/KX-MB783RU
2.5.2.
KX-MB783RU MAIN BOARD
2.5.2.1.
MAIN BOARD(1)
[Changed from original section “16.3.1. MAIN BOARD(1)”]
KX-MB783RU SCHEMATIC DIAGRAM (MAIN BOARD No.1) (2/3)
2/3
1
-2
C
E
B
A
D
F
6
7
4
5
RX_DV
2:16I
K1u
C323
J300
NC
()
Z0.1u
C339
10k
R373
220
L367
1
R385
MDIO
2:16I
AFESIFDOUT
3:6I
1M
R387
L361
15
MDC
2:16I
+1.2V
+3.3V
+3.3V
Z0.1u
C330
Z0.1u
C355
Z0.1u
C336
Z0.1u
C328
LEDONR
3:6G
1
R381
1
R380
Z0.1u
C335
RING
2G;4:2C
K0.22u
C306
4.7k
R335
CCDCLK
3:6E
AFESIFEN
3:6I
ASPCLK
4:2D
NC
(
)
R345
F6.98k
R376
Z0.1u
C357
+1.2V
J22p
C313
L363
220
ARXD
4:2D
R393
(
) NC
Z0.1u
C334
+1.2V/BATT
NC
(
)
R341
NC
(
)
R346
CCDSH
3:6F
COL
2:16H
MGINT
2:16G
NC
(
)
R342
CRS
2:16H
+1.2V
AINT
4:2E
AFEVSMP
3:6I
220
L366
Z0.1u
C358
Z0.1u
C337
K1u
C322
+3.3V
+3.3V
+1.2V
R375
220
Z0.1u
C338
DA300
1
2
3
NC
(
)
R343
TX_CLKI
2:16H
Z0.1u
C332
Z0.1u
C324
BTXD
4:2I
Z0.1u
C325
TX_EN
2:16H
R390
(
)
NC
Z0.1u
C363
DP
4:2C
100
R384
IC303
4
NC
3
VOUT
1
VSS
2
VIN
Z0.1u
C333
K0.22u
C308
J12p
C317
AFEMCLK
3:6I
Z0.1u
C354
BBITCLK
4:2J
AFESIFCLK
3:6H
AFERST
4:2E;4:2J
1k
R389
220
L365
NC
(
)
R347
NCCDON
3:4J
TXD[0-3]
2:16H
220
L371
XSYSRST
3K;2:3I
Z0.1u
C359
BRXD
4:2I
Z0.1u
C361
BSPCLK
4:2I
Z0.1u
C321
180k
R388
Z0.1u
C329
+3.3V
AFEADC[0-3]
3:6H
+1.2V
ABITCLK
4:2D
AFECLK
4:2D;4:2J
+3.3V/BATT
10k
R372
Z0.1u
C331
4.7k
R303
RXD[0-3]
2:16J
+3.3V
220
L370
RX_ER
2:16I
1
R382
LEDONB
3:6F
Z0.1u
C362
K0.22u
C304
K1u
C319
Z0.1u
C353
Z0.1u
C364
+3.3V
LEDONG
3:6G
NC
(
)
R344
L364
220
220
L368
X303
32.768KHz
Z0.1u
C360
Z0.1u
C327
K0.22u
C305
Z0.1u
C352
RX_CLKI
2:16I
ATXD
4:2D
220
L369
J22p
C310
J27p
C311
C316
J33p
C314
470
R374
1k
R378
C398
(
)
NC
TDO
TMS
TDI
TRSTN
TCK
X300
12MHz
X301
24.576MHz
J27p
C318
X302
L350
L355
L356
L349
L354
L354
L353
L358
L352
L352
L351
L359
L348
J22p
R340
J22p
R348
C315
10k
R315
10k
R316
10k
R354
NC
(
)
R350
R351
NC
(
)
(
)
R349
NC
10k
R352
10k
R305
10k
R355
NC
(
)
R353
L357
1
2
3
K0.1u
C312
22k
R339
L300
1
2
4
3
NC
(
)
R394
+3.3V
D306
1
IO1
2
VN
3
NC1
4
NC2
5
VP
6
IO2
D307
NC
()
1
2
3
CN300
1
VBUS
2
D-
3
D+
4
GND
5
6
7
8
BAT300
1
2
3
IC300
Y23
AFESEL0
Y24
AFESEL1
Y26
DP
AA24
AFERST
AA25
RING
AB24
BTXD
AB25
BRXD
AC24
ATXD
AD26
ARXD
AE26
ABITCLK
AC25
BBITCLK
AD25
ASPCLK
AC26
BSPCLK
AB26
AFECLK
Y25
EXMDMCS
AA26
EXTINT
AF5
COL
AD6
CRS
AE6
TX_CLKI
AF6
TX_EN
AC7
TXD0
AD7
TXD1
AE7
TXD2
AF7
TXD3
AC8
TX_ER
AE8
RX_CLKI
AD8
RX_DV
AF8
RXD0
AC9
RXD1
AD9
RXD2
AE9
RXD3
AD10
RX_ER
AF9
MDIO
AE10
MDC
AF10
MGTINT
AF18
LSI_TCK
AD16
LSI_TRSTN
AF17
LSI_TMS
AE17
LSI_TDI
AC16
LSI_SCAN_ENABLE
AC19
LSI_TN
AF19
LSI_CW_TAP
AE18
LSI_PROCMON
AD17
LSI_TDO
AE19
LSI_IDDT
C2
AFEADC1
D3
AFEADC2
C1
AFEADC3
D2
AFEADC4
D1
AFEADC5
E3
AFEADC6
E2
AFEADC7
F3
AFESIFCLK
G4
AFESIFEN
G3
AFESIFDIN
H4
AFESIFDOUT
C5
OEB
A3
NCCDON
C4
LEDONR
B3
LEDONG
A2
LEDONB
AF11
USBVBUS
AE12
USBID
AE13
USBDM
AF13
USBDP
AC12
USBREXT
AF12
USBVDDA33_BIAS
AD14
USBVDDA12_SQ
AE15
USBVDDA12PLL
AF14
USBVDDA33
AE16
USBVDDA12
AD12
USBVSSA33_BIAS
AE14
USBVSSA12_SQ
AF15
USBVSSA12PLL
AD13
USBVSSA33
AD15
USBVSSA12
AC15
USBXIN
AF16
USBXOUT
AD4
NBATRST
AE5
RTCPWRDWN
A6
CCDCLK
B5
AFEVSMP
B4
AFERSMP
A4
AFEMCLK
B1
AFEADC0
A5
NCCDCP
B6
NCCDRS
C6
CCDSH
IC300
B2
VSS_1
P11
VSS_2
P12
VSS_3
P13
VSS_4
P14
VSS_5
P15
VSS_6
P16
VSS_7
R11
VSS_8
R12
VSS_9
R13
VSS_10
R14
VSS_11
R15
VSS_12
R16
VSS_13
T11
VSS_14
T12
VSS_15
T13
VSS_16
T14
VSS_17
T15
VSS_18
T16
VSS_19
AD24
VSS_20
AE25
VSS_21
AB23
VSS_22
AC23
VSS_23
Y4
VSS_24
Y1
VSS_25
L11
VSS_26
L12
VSS_27
L13
VSS_28
L14
VSS_29
L15
VSS_30
L16
VSS_31
M11
VSS_32
M12
VSS_33
M13
VSS_34
M14
VSS_35
M15
VSS_36
M16
VSS_37
N11
VSS_38
N12
VSS_39
N13
VSS_40
N14
VSS_41
N15
VSS_42
N16
VSS_43
AC4
VSS_44
AC5
VSS_45
AD3
VSS_46
AE2
VSS_47
C3
VSS_48
F4
VDD2_1
E23
VDD2_2
D6
VDD2_3
D10
VDD2_4
D14
VDD2_5
P23
VDD2_6
K23
VDD2_7
AA23
VDD2_8
AB4
VDD2_9
AC22
VDD2_10
AC17
VDD2_11
AC13
VDD2_12
N4
VDD2_13
D22
VDD2_14
U4
VDD2_15
AC6
VDD2_16
AD5
VDD2RTC
K4
VDDIO33_1
D13
VDDIO33_2
D17
VDDIO33_3
P4
VDDIO33_4
U23
VDDIO33_5
AC10
VDDIO33_6
N23
VDDIO33_7
AC14
VDDIO33_8
AF3
VDDIO33OSC
D24
NC1
AE11
NC2
AD23
NC3
C26
DOTCLKIN
D25
DOTCLKOUT
AF24
MDMCLKIN
AE23
MDMCLKOUT
AF4
RTCCLKIN
AE4
RTCCLKOUT
C25
PLL24VDD
B26
PLL240VSS
AE24
PLL393VDD
AF25
PLL393VSS
AF2
PLL266VDD2
AE3
PLL266VSS2
C24
VSS_49
B25
VSS_50
K1
VSS_51
K3
VSS_52
D23
VSS_53
D4
VSS_54
D5
VSS_55
E4
VSS_56
BAT301
NC
()
1
2
L
D308
TXD[2]
AFEADC[0]
TXD[1]
TXD[3]
RXD[0]
RXD[2]
RXD[3]
RXD[3]
RXD[1]
AFEADC[3]
AFEADC[2]
AFEADC[1]
TXD[0]
TP for ARM JTAG
8p 50
8p 50
16MHz
24.576MHZ
12MHZ
32.768KHZ
Changed
10
KX-MB283RU/KX-MB783RU
2.5.2.2.
MAIN BOARD(4)
[Changed from original section “16.3.4. MAIN BOARD(4)”]
K.T.
KXMB283RU
KXMB783RU
KXMB783RU
(1)
(2)
(3)
(4)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(12)
(13)
(14)
(14)
(15)
(16)
(17)
KX-MB783RU SCHEMATIC DIAGRAM (MAIN BOARD No.4) (2/2)
4
-2
2/2
CID
MONITOR_RX:
TONE
HS RX:
HS TX:
MONITOR_RX:
FAX-TX,RX:
HS
-TX,RX:
C
E
B
A
D
F
6
7
8
SPMUTE
1:2I
51k
R230
K0.015u
C226
EXTRLY
1:5G
L217
10k
R238
120k
R242
RLY100
1
2
3
4
5
R229
NC
( )
10k
R235
DG
K1u
C232
+5VA
L219
0
R251
DG
+5VA
2.49k(1/2W)
R116
L218
+3.3V
DG
HOOK
1:5G
J100p
C101
10(3216)
R225
DG
L225
0(3216)
R126
1.8k
R234
100k
R118
+5VD
L220
DG
51k
R231
K0.015u
C227
DG
IC204
1
CD
2
FC2
3
FC1
4
VIN
5
VO1
6
VCC
7
GND
8
VO2
4.7k
R239
150k
R241
1k
R236
10(3216)
R240
68
R228
K0.022u
C231
150k
R226
K1u
C233
C242
NC
(
)
120k
R227
0
R250
DG
DG
6.3V/100u
C224
100k
R117
DG
680
R232
DG
+5VA
6.3V/100u
C236
CIDRLY
1:2I
C103
(
)
NC
DG
16V/47u
C229
12k
R237
(
)
R128
NC
+5VD
L226
D103
4
1
3
2
1.8k
R233
K1u
C230
K1000p
C243
5.6k
R252
DG
L100
31AJ601
L101
31AJ601
L106
L102
RLY101
NC
1
2
3
4
5
L103
L105
D200
NC
( )
1
2
2
3
DG
18RK102SN
L232
L233
NC
( )
1mH
L111
1mH
L110
DG2
D102
250V 0.01u
C113
L.F
L238
1
4
3
2
16V/22u
C246
L107
2
3
1
4
R125
( )
NC
R122( )
NC
(
)
R131
NC
R133
L223
L221
L224
L222
SA101
1000V
L239
NC
( )
L240
NC
( )
R123
120k
1
C119
Q103
B
C
E
12(1W)
R129
12(1W)
R134
R135
J
ZNR100
NC
()
R120
(
)
NC
(
)
R132
NC
R255
NC
(
)
R256
NC
(
)
C248
NC
(
)
C249
NC
(
)
CN200
1
SP+
2
SP-
3
GND
4
HOOK
5
MIC-
6
MIC+
7
HSSP-
8
HSSP+
470p/250V
C115
470p/250V
C114
SA100
21
Q106
B
E
C
( )
Q101
NC
B
C
E
Q105
B
C
E
Q100
B
C
E
Q104
B
C
E
(
)
D101
NC
AK
D100
AK
D105
A
K
D104
A
K
L108
L109
L216
0
L237
0
R124
J
CN101
1
2
3
4
5
6
7
8
CN100
1
2
3
4
5
6
7
8
F100
C126
(
)
NC
K0.01u
C112
K0.01u
C125
K0.01u
C228
K3900p
C234
POS100
J
Changed
Changed
MONITOR-RX
10
KX-MB283RU/KX-MB783RU
2.5.2.2.
MAIN BOARD(4)
[Changed from original section “16.3.4. MAIN BOARD(4)”]
K.T.
KXMB283RU
KXMB783RU
KXMB783RU
(1)
(2)
(3)
(4)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(12)
(13)
(14)
(14)
(15)
(16)
(17)
KX-MB783RU SCHEMATIC DIAGRAM (MAIN BOARD No.4) (2/2)
4
-2
2/2
CID
MONITOR_RX:
TONE
HS RX:
HS TX:
MONITOR_RX:
FAX-TX,RX:
HS
-TX,RX:
C
E
B
A
D
F
6
7
8
SPMUTE
1:2I
51k
R230
K0.015u
C226
EXTRLY
1:5G
L217
10k
R238
120k
R242
RLY100
1
2
3
4
5
R229
NC
( )
10k
R235
DG
K1u
C232
+5VA
L219
0
R251
DG
+5VA
2.49k(1/2W)
R116
L218
+3.3V
DG
HOOK
1:5G
J100p
C101
10(3216)
R225
DG
L225
0(3216)
R126
1.8k
R234
100k
R118
+5VD
L220
DG
51k
R231
K0.015u
C227
DG
IC204
1
CD
2
FC2
3
FC1
4
VIN
5
VO1
6
VCC
7
GND
8
VO2
4.7k
R239
150k
R241
1k
R236
10(3216)
R240
68
R228
K0.022u
C231
150k
R226
K1u
C233
C242
NC
(
)
120k
R227
0
R250
DG
DG
6.3V/100u
C224
100k
R117
DG
680
R232
DG
+5VA
6.3V/100u
C236
CIDRLY
1:2I
C103
(
)
NC
DG
16V/47u
C229
12k
R237
(
)
R128
NC
+5VD
L226
D103
4
1
3
2
1.8k
R233
K1u
C230
K1000p
C243
5.6k
R252
DG
L100
31AJ601
L101
31AJ601
L106
L102
RLY101
NC
1
2
3
4
5
L103
L105
D200
NC
( )
1
2
2
3
DG
18RK102SN
L232
L233
NC
( )
1mH
L111
1mH
L110
DG2
D102
250V 0.01u
C113
L.F
L238
1
4
3
2
16V/22u
C246
L107
2
3
1
4
R125
( )
NC
R122( )
NC
(
)
R131
NC
R133
L223
L221
L224
L222
SA101
1000V
L239
NC
( )
L240
NC
( )
R123
120k
1
C119
Q103
B
C
E
12(1W)
R129
12(1W)
R134
R135
J
ZNR100
NC
()
R120
(
)
NC
(
)
R132
NC
R255
NC
(
)
R256
NC
(
)
C248
NC
(
)
C249
NC
(
)
CN200
1
SP+
2
SP-
3
GND
4
HOOK
5
MIC-
6
MIC+
7
HSSP-
8
HSSP+
470p/250V
C115
470p/250V
C114
SA100
21
Q106
B
E
C
( )
Q101
NC
B
C
E
Q105
B
C
E
Q100
B
C
E
Q104
B
C
E
(
)
D101
NC
AK
D100
AK
D105
A
K
D104
A
K
L108
L109
L216
0
L237
0
R124
J
CN101
1
2
3
4
5
6
7
8
CN100
1
2
3
4
5
6
7
8
F100
C126
(
)
NC
K0.01u
C112
K0.01u
C125
K0.01u
C228
K3900p
C234
POS100
J
Changed
Changed
MONITOR-RX
10
KX-MB283RU/KX-MB783RU
2.5.2.2.
MAIN BOARD(4)
[Changed from original section “16.3.4. MAIN BOARD(4)”]
K.T.
KXMB283RU
KXMB783RU
KXMB783RU
(1)
(2)
(3)
(4)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(12)
(13)
(14)
(14)
(15)
(16)
(17)
KX-MB783RU SCHEMATIC DIAGRAM (MAIN BOARD No.4) (2/2)
4
-2
2/2
CID
MONITOR_RX:
TONE
HS RX:
HS TX:
MONITOR_RX:
FAX-TX,RX:
HS
-TX,RX:
C
E
B
A
D
F
6
7
8
SPMUTE
1:2I
51k
R230
K0.015u
C226
EXTRLY
1:5G
L217
10k
R238
120k
R242
RLY100
1
2
3
4
5
R229
NC
( )
10k
R235
DG
K1u
C232
+5VA
L219
0
R251
DG
+5VA
2.49k(1/2W)
R116
L218
+3.3V
DG
HOOK
1:5G
J100p
C101
10(3216)
R225
DG
L225
0(3216)
R126
1.8k
R234
100k
R118
+5VD
L220
DG
51k
R231
K0.015u
C227
DG
IC204
1
CD
2
FC2
3
FC1
4
VIN
5
VO1
6
VCC
7
GND
8
VO2
4.7k
R239
150k
R241
1k
R236
10(3216)
R240
68
R228
K0.022u
C231
150k
R226
K1u
C233
C242
NC
(
)
120k
R227
0
R250
DG
DG
6.3V/100u
C224
100k
R117
DG
680
R232
DG
+5VA
6.3V/100u
C236
CIDRLY
1:2I
C103
(
)
NC
DG
16V/47u
C229
12k
R237
(
)
R128
NC
+5VD
L226
D103
4
1
3
2
1.8k
R233
K1u
C230
K1000p
C243
5.6k
R252
DG
L100
31AJ601
L101
31AJ601
L106
L102
RLY101
NC
1
2
3
4
5
L103
L105
D200
NC
( )
1
2
2
3
DG
18RK102SN
L232
L233
NC
( )
1mH
L111
1mH
L110
DG2
D102
250V 0.01u
C113
L.F
L238
1
4
3
2
16V/22u
C246
L107
2
3
1
4
R125
( )
NC
R122( )
NC
(
)
R131
NC
R133
L223
L221
L224
L222
SA101
1000V
L239
NC
( )
L240
NC
( )
R123
120k
1
C119
Q103
B
C
E
12(1W)
R129
12(1W)
R134
R135
J
ZNR100
NC
()
R120
(
)
NC
(
)
R132
NC
R255
NC
(
)
R256
NC
(
)
C248
NC
(
)
C249
NC
(
)
CN200
1
SP+
2
SP-
3
GND
4
HOOK
5
MIC-
6
MIC+
7
HSSP-
8
HSSP+
470p/250V
C115
470p/250V
C114
SA100
21
Q106
B
E
C
( )
Q101
NC
B
C
E
Q105
B
C
E
Q100
B
C
E
Q104
B
C
E
(
)
D101
NC
AK
D100
AK
D105
A
K
D104
A
K
L108
L109
L216
0
L237
0
R124
J
CN101
1
2
3
4
5
6
7
8
CN100
1
2
3
4
5
6
7
8
F100
C126
(
)
NC
K0.01u
C112
K0.01u
C125
K0.01u
C228
K3900p
C234
POS100
J
Changed
Changed
MONITOR-RX
