Panasonic KX-MB283RU / KX-MB783RU (serv.man3) Service Manual / Supplement ▷ View online
25
KX-MB283RU/KX-MB783RU
KX-MB283RU SCHEMATIC DIAGRAM (MAIN BOARD No.3) (2/2)
2/2
3
-2
C
E
B
A
D
F
K0.1u
C537
AFESIFCLK
1:11C
DA500
1
2
3
J100p
C556
K0.1u
C542
1.2k
R542
+5VD
1.2k
R544
47
R558
K1000p
C553
4.7k
R555
NCCDON
1:11C
10u/6.3V
C530
+3.3V
K1000p
C554
AFESIFDOUT
1:11C
K0.1u C543
+3.3V
LEDONG
1:11C
1.2k
R550
AFEVSMP
1:11B
K1u
C545
K1000p
C551
K0.1u
C533
10u/6.3V
C531
1.2k
R541
LEDONB
1:11D
AFESIFEN
1:11C
1.2k
R554
+7V
+5VA_C
Z0.1u
C552
AFEADC[0-3]
1:11B
CCDSH
1:11B
AFEMCLK
1:11B
IC503
1
AGND2
2
DVDD1
3
VSMP
4
MCLK
5
DGND
6
SEN
7
DVDD2
8
SDI
9
SCK
10
OP0
11
OP1
12
OP2
13
OP3/SDO
14
AVDD
15
AGND1
16
VRB
17
VRT
18
VRX
19
VRLC/VB
20
VINP
470
R547
L504
+5VD
L501
K0.
1
u
C5
40
K0.1u
C536
AP1
CN510
1
SIG
2
DG
3
+3.3V
4
VREF
5
DG
6
SI
7
DG
8
CLK
9
VLED
10 LED_G
11 LED_R
12 LED_B
11 LED_R
12 LED_B
K0.1u
C534
1.2k
R546
+5VA_C
LEDONR
1:11C
PWD
1:2J
CRM5
1:2H;2:12C
CRM2
1:2H;2:12C
Z0.1u/50V
C525
AP1
CN509
1
CR_A
2
CR_B
3
CR_XA
4
CR_XB
CRM3
1:2H;2:12C
CRM0
1:2H;2:12C
Z0.1u
C567
K1u
C509
CRM1
1:2H;2:12C
K0.01u/50V
C522
CRMEN
1:2I
K1000p
C527
Z0.1u
C566
1k
R533
K1000p
C528
+24V
K0.01u/50V
C520
K1000p
C529
K1000p
C526
+3.3V
CRM4
1:2H;2:12C
CCDCLK
1:11B
J100p
C547
10k
R534
R537
F1(3216)
R536
F1(3216)
MVREF
2:12D
1k
R538
10k
R539
1.2(1608)
R548
27
R553
IC502
1
VM1
2
NC1
3
BOUT2
4
NC2
5
RCSB
6
NC3
7
BOUT1
8
NC4
9
AOUT2
10
NC5
11
RCSA
12
NC6
13
AOUT1
14
NC7
15
VM2
17 BC2
18 BC1
19 VREFA
20 VREFB
21 VCC
22 S5VOUT
23 GND
24 PWMSW
25 PHA1
26 PHB1
27 IN0
28 IN1
29 IN2
30 IN3
31 ENABLEA
16
VPUMP
32 TJMON
FLT501
1
2
3
4
FLT500
1
2
3
4
1k
R552
33
R549
22
R543
39
R556
6.3V/100u/105
C549
16V/22u/105
C550
35V/47u/105
C524
10u/6.3V
C538
+3.3V
Q518
B
E
C
Q522
B
C
E
Q521
D
S
G
Q514
B
C
E
Q516
B
C
E
Q517
B
C
E
K0.
0
1u
C5
44
K0.01u
C546
560
R571
0
L505
AFEADC[1]
AFEADC[2]
AFEADC[3]
AFEADC[0]
TO FLAT
BED & ADF
BED & ADF
TO FBM
6
7
5
8
9
SI
1.32ms
CLK
4.46MHZ
26
KX-MB283RU/KX-MB783RU
3.3.4.
MAIN BOARD (4)
[Changed from original section “16.2.4. MAIN BOARD (4)”]
KX-MB283RUSCHEMATIC DIAGRAM (MAIN BOARD No.04) (1/2)
4
-1
1/2
(1)
(2)
(3)
(4)
(4)
(5)
(6)
(7)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(12)
(13)
(14)
(15)
(16)
(17)
CID
MONITOR_RX:
TONE
HS RX:
HS TX:
MONITOR_RX:
FAX-TX,RX
:
HS
-TX,RX
:
C
E
B
A
D
F
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
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
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
( )
( )
( )
( )
( )
( )
( )
( )
( )
( )
( )
( )
( )
( )
( )
( )
( )
( )
( )
( )
( )
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
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
L227
NC
L200
NC
C121
NC
C123
NC
C122
NC
3
4
2
5
1
This circuit is not used in KX-MB283RU.
HS-TX
HS-RX
FAX-TX
FAX-RX
I
C
3
0
0
0
0
27
KX-MB283RU/KX-MB783RU
KX-MB283RU SCHEMATIC DIAGRAM (MAIN BOARD No.04) (2/2)
4
-2
2/2
(1)
(2)
(3)
(4)
(4)
(5)
(6)
(7)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(12)
(13)
(14)
(15)
(16)
(17)
This circuit is not used in KX-MB283RU.
CID
MONITOR_RX:
TONE
HS RX:
HS TX:
MONITOR_RX:
FAX-TX,RX
:
HS
-TX,RX
:
C
E
B
A
D
F
SPMUTE
1:2I
R230
NC
C226
NC
( )
( )
( )
( )
EXTRLY
1:5G
L217
NC
R238
NC
R242
NC
RLY100
NC
1
2
3
4
5
R229
NC
R235
NC
DG
C232
NC
+5VA
L219
NC
R251
NC
DG
+5VA
R116
NC
L218
NC
( )
( )
( )
( )
( )
( )
( )
+3.3V
DG
HOOK
1:5G
C101
NC
R225
NC
( )
( )
( )
( )
( )
( )
( )
( )
( )
( )
( )
DG
L225
NC
R126
NC
R234
NC
R118
NC
+5VD
L220
NC
DG
R231
NC
C227
NC
DG
DG
IC204
NC
1 CD
2 FC2
3 FC1
4 VIN
2 FC2
3 FC1
4 VIN
5
VO1
6
VCC
7
GND
8
VO2
R239
NC
( )
R241
NC
R236
NC
R240
NC
R228
NC
C231
NC
R226
NC
C233
NC
C242
NC
( )
R227
NC
R250
NC
DG
DG
C224
NC
R117
NC
DG
R232
NC
+5VA
C236
NC
CIDRLY
1:2I
C103 ( )
( )
( )
NC
DG
C229
NC
R237
NC
R128
NC
+5VD
L226
NC
D103
NC
4
1
3
2
R233
NC
C230
NC
( )
C243
NC
( )
( )
R252
NC
DG
L100
NC
L101
NC
POS100
NC
L106
NC
L102
NC
RLY101
NC
1
2
3
4
5
L103
NC
L105
NC
D200
NC
( )
1
2
2
3
DG
L232
NC
L233
NC
L111
NC
L110
NC
DG2
D102
NC
C113
NC
L.F
L238
NC
1
4
3
2
C246
NC
L107
NC
2
3
1
4
R125
( )
NC
R122
( )
NC
( )
R131
NC
R133
NC
L223
NC
( )
( )
( )
( )
L221
NC
L224
NC
L222
NC
SA101
NC
L239
NC
L240
NC
( )
( )
R123
NC
NC
C119
Q103
NC
B
C
E
R129
NC
R134
NC
R135
NC
ZNR100
NC
( )
R120
NC
( )
R132
NC
R255
NC
( )
( )
R256
NC
C248
NC
( )
( )
C249
NC
CN200
NC
1 SP+
2 SP-
3 GND
4 HOOK
5 MIC-
6 MIC+
7 HSSP-
8 HSSP+
C115
NC
C114
NC
SA100
NC
21
Q106
NC
B
E
C
( )
Q101
NC
B
C
E
Q105
NC
B
C
E
Q100
NC
B
C
E
Q104
NC
B
C
E
D101
NC
AK
D100
NC
AK
NC
D105
NC
D104
A
A
K
K
( )
( )
( )
( )
( )
L108
NC
L109
NC
L216
NC
L237
NC
( )
R124
NC
CN101
NC
1
2
3
4
5
6
2
3
4
5
6
7
8
CN100
NC
1
2
3
4
5
6
2
3
4
5
6
7
8
F100
NC
C126
( )
NC
C112
NC
C125
NC
C228
NC
C234
NC
6
7
9
5
8
MONITOR-RX
28
KX-MB283RU/KX-MB783RU
3.4.
Schematic Diagram (KX-MB783RU)
3.4.1.
MAIN BOARD (1)
[Changed from original section “16.3.1. MAIN BOARD (1)”]
KX-MB783RU SCHEMATIC DIAGRAM (MAIN BOARD No.1) (1/3)
1/3
1
-1
C
E
B
A
D
F
3
2
1
4
(1-2 Phase excitation)
CRM0
CRM1
CRM2
CRM3
CRM3
CRM4
CRM5
+3.3V
CRM2
2:12C;3:6D
MMA
3:13G
POUT
3:9C
NSDWE
2:3D
CRM1
2:12C;3:6D
TRS
3:14C
SNREG
3:10J
NFRCE
2:3K
NREADY
3:13J
SDLDM1
2:3F
NSDCS
2:3E
FRMD[0-7]
2:6I
HOOK
4:13I
DAOUT
3:11B;4:2H
R306
NC
( )
HVERR
3:14B
CRM4
2:12C;3:6D
RING
7B;4:2C
47
R368
ADFMEN
2:12C
SNPICK
3:10K
SDCLK
2:3F
KTXD
3:11B
47
R367
47
RA317
1
2
3
4
5
6
7
8
CIDRLY
4:13F
Z0.1u
C301
NSDRAS
2:3E
DOCU
2:9D
PSTART
3:9G
+3.3V
SDCKE
2:3F
MMXA
3:13G
CRMEN
3:6D
Z0.1u
C300
FRMA[0-23]
2:3K
47
RA318
1
2
3
4
5
6
7
8
47
RA319
1
2
3
4
5
6
7
8
M-TDO
NAPC
3:13K
UARTRX
47
R308
M-TDI
SDLDM0
2:3D
TOPCVR
3:14B
MMXB
3:13G
XSYSRST
10E;2:3I
PWD
3:7C
M-TRSTN
47
R309
FANON2
3:9E
HTRCTL
3:15E
EYECLK
L347
KSCLK
3:11B
SDMA[0-12]
2:2C
OPERST
3:11B
NSDCAS
2:3D
MMB
3:13G
NLDEN
3:13K
HSSPMUTE
4:8G
SDBA0
2:3E
UARTTX
CHG
3:14C
L344
47
RA316
1
2
3
4
5
6
7
8
NVIDEO
3:13L
TNR
3:9G
CRM5
2:12C;3:6D
47
RA314
1
2
3
4
5
6
7
8
47
R369
M-TMS
CRM0
2:12C;3:6C
CRM3
2:12C;3:6D
EXTRLY
4:11B
DEV
3:14C
47
RA315
1
2
3
4
5
6
7
8
FANON1
3:10H
SDBA1
2:3E
SPMUTE
4:12G
+3.3V
CNGMUTE
4:6J
NFROE
2:3K
L345
REGIST
3:9G
THRMSTR0
3:11B
F49.9
R302
L346
NFRWE
2:3I
EYEDAT
POLON
3:13I
100k
R391
M-TCK
RPS
2:9C
KSTART
3:11B
POLCLK
3:13I
47
RA320
1
2
3
4
5
6
7
8
SDMD[0-15]
THRMSTR1
3:9D
10
R392
47
R307
NHSYNC
3:13K
FANDET1
3:10H
FANDET2
3:9E
+3.3V
R463
NC
(
)
10k
R460
R461
NC
(
)
10k
R462
PICK
3:9E
10k
R338
TP_CHKSEL
IC301
1
DS
2
VSS
3
NC
5
VDD
4
OUT
100
R304
J100p
C351
XLANRST
2:16J
NC
(
)
R465
10k
R464
10k
R399
+3.3V
47k
RA321
1
2
3
4
5
6
7
8
47k
RA322
1
2
3
4
5
6
7
8
47k
RA323
1
2
3
4
5
6
7
8
47k
RA324
1
2
3
4
5
6
7
8
K0.01u
C326
IC300
T1
SDMD0
T2
SDMD1
U1
SDMD2
U2
SDMD3
V1
SDMD4
V2
SDMD5
W1
SDMD6
W2
SDMD7
AA1
SDMD8
AA2
SDMD9
AB1
SDMD10
AB2
SDMD11
AC1
SDMD12
AC2
SDMD13
AD1
SDMD14
AD2
SDMD15
F1
SDMD16
F2
SDMD17
G1
SDMD18
G2
SDMD19
H1
SDMD20
H2
SDMD21
J1
SDMD22
J2
SDMD23
L1
SDMD24
L2
SDMD25
M1
SDMD26
M2
SDMD27
N1
SDMD28
N2
SDMD29
P1
SDMD30
P2
SDMD31
E1
SDUDM0
R1
SDUDM1
R2
SDLDM0
AE1
SDLDM1
P3
NSDCS
H3
NSDCS2
M4
SDBA1
N3
SDBA0
T3
NSDCAS
T4
NSDRAS
U3
NSDWE
V3
SDCKE
Y2
SDCLK
K2
SDCLK2
R3
BZVDD33
R4
BZRST33
D15
FRMD5
C15
FRMD6
A16
FRMD7
B16
FRMA0
D16
FRMA1
C16
FRMA2
A17
FRMA3
B17
FRMA4
C17
FRMA5
A18
FRMA6
B18
FRMA7
D18
FRMA8
C18
FRMA9
A19
FRMA10
A21
FRMA11
B21
FRMA12
D21
FRMA13
C21
FRMA14
A22
FRMA15
B22
FRMA16
A23
FRMA17
C22
FRMA18
B23
FRMA19
A24
FRMA20
B24
FRMA21
A25
FRMA22
C23
FRMA23
E24
FRMA24
A13
NFRCE
B13
NFROE
C13
NFRWE
L4
SDMA0
L3
SDMA1
J4
SDMA2
J3
SDMA3
AC3
SDMA4
AB3
SDMA5
AA4
SDMA6
AA3
SDMA7
Y3
SDMA8
A14
FRMD0
B14
FRMD1
C14
FRMD2
A15
FRMD3
B15
FRMD4
W4
SDMA9
M3
SDMA10
W3
SDMA11
V4
SDMA12
IC300
U24
IO0
U25
IO1
G24
IO2
F26
IO3
J26
IO4
J25
IO5
J23
IO6
U26
IO7
T24
IO8
T23
IO9
T25
IO10
T26
IO11
R24
IO12
R23
IO13
R25
IO14
R26
IO15
P24
IO16
P25
IO17
P26
IO18
N26
IO20
H26
IO21
N25
IO22
N24
IO23
F23
IO24
M26
IO25
M25
IO26
J24
IO27
H25
IO28
A7
IO29
B7
IO30
C7
IO31
D7
IO32
M23
IO33
AF20
SCIO0
AE20
SCIO1
AC20
SCIO2
AD20
SCIO3/EXSEN0
AF21
SCIO4/EXSEN1
AE21
SCIO5/EXSEN2
AC21
SCIO6/EXSEN3
AD21
SCIO7
AF22
SCIO12
AE22
SCIO13
AF23
SCIO14
AD22
SCIO15
W23
SCIO16
W24
SCIO17
W25
SCIO18
M24
IO34
L26
IO35
L25
IO36
L23
IO37
L24
IO38
K26
IO39
K25
IO40
K24
IO41
A12
IO42/MMA
B12
IO43/MMXA
D12
IO44/MMB
C12
IO45/MMXB
A11
IO46/OPMA
B11
IO47/OPMXA
D11
IO48/OPMB
C11
IO49/OPMXB
A10
IO50/CRM0
B10
IO51/CRM1
C10
IO52/CRM2
A9
IO53/CRM3
B9
IO54/CRM4
C9
IO55/CRM5
D9
IO56/ADFMEN
A8
IO57/CRMEN
G26
IO58
G25
IO59
F25
IO60
F24
IO61
H24
IO62
H23
IO63
E26
IO64
E25
IO65
D26
IO66
B8
MMPWR
C8
OPMPWR
D8
CRMPWR
AD19
HTRCTL
C19
THRMSTR0
D19
THRMSTR1
B20
TONE
A20
THRMAVDD
B19
THRMAVSS
C20
TONEAVDD
W26
SCIO19/EXSEN4
V23
SCIO20
V24
SCIO21
V25
SCIO22
V26
SCIO23
G23
SCIO24
D20
TONEAVSS
AC11
TEST
AD11
CLKSEL
AC18
NWDTRST
AD18
NRST
FRMA[14]
FRMA[2]
FRMA[13]
FRMA[1]
FRMA[12]
FRMA[0]
FRMA[11]
FRMA[23]
FRMA[6]
FRMA[5]
FRMA[4]
FRMA[18]
FRMA[3]
FRMA[17]
FRMA[16]
FRMA[15]
SDMA[3]
SDMA[2]
SDMA[8]
SDMA[1]
FRMA[22]
SDMA[7]
SDMA[0]
FRMA[21]
FRMD[7]
SDMA[6]
FRMA[20]
FRMD[6]
SDMA[12]
SDMA[5]
FRMA[19]
FRMD[5]
SDMA[11]
SDMA[4]
FRMD[4]
SDMA[10]
SDMA[9]
SDMD[0]
FRMD[3]
FRMD[2]
FRMD[1]
FRMA[10]
FRMD[0]
FRMA[9]
FRMA[8]
FRMA[7]
SDMD[1]
SDMD[2]
SDMD[3]
SDMD[4]
SDMD[5]
SDMD[6]
SDMD[7]
SDMD[8]
SDMD[9]
SDMD[10]
SDMD[11]
SDMD[12]
SDMD[13]
SDMD[14]
SDMD[15]
SDMD[2]
SDMD[3]
SDMD[4]
SDMD[5]
SDMD[6]
SDMD[7]
SDMD[8]
SDMD[9]
SDMD[10]
SDMD[11]
SDMD[12]
SDMD[13]
SDMD[14]
SDMD[15]
TP for MODEM JTAG
271
261
10K
NC
10K
R460 R461 R462 R463 R464 R465
NC
NC
281
NC
10K
10K
10K
10K
NC
NC
761
771
781
NC
10K
NC
NC
10K
10K
10K
10K
10K
NC
NC
NC
10K
NC
NC
10K
10K
NC
10K
NC
10K
10K
NC
NC
Click on the first or last page to see other KX-MB283RU / KX-MB783RU (serv.man3) service manuals if exist.