![background image](http://html.mh-extra.com/html/panasonic/kx-mb1520fx7/kx-mb1520fx7_service-manual_275220260.webp)
260
KX-MB1520FX7/KX-MB1520FX8/KX-MB1520FXW/KX-MB1530FX7/KX-MB1530FXW
16.2. Main Board (KX-MB1520)
16.2.1. Main Board (1)
C
E
B
A
D
F
3
4
2
1
FRMA[14]
FRMA[2]
FRMA[13]
FRMA[1]
FRMA[12]
FRMA[0]
FRMA[11]
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]
FRMA[23]
FRMA[24]
+3.3V
CRM2
2:6E
MMA
2:5C
POUT
2:7D
NSDWE
6E
CRM1
2:6F
TRS
2:3C
SNREG
2:5B
NFRCE
7C
SDLDM1
6F
NSDCS
6E
FRMD[0-7]
9A
CRM4
2:6F
R368
47
SNPICK
2:5B
SDCLK
6E
KTXD
2:2A
R367
47
RA317
47
1
2
3
4
5
6
7
8
NSDRAS
6E
PSTART
2:2D
+3.3V
SDCKE
6E
MSEL1
2:5C
CRMEN
2:6F
FRMA[0-24]
7C
RA318
47
1
2
3
4
5
6
7
8
RA319
47
1
2
3
4
6
7
8
M-TDO
NAPC
2:2E
M-TDI
SDLDM0
6D
TOPCVR
2:3C
MRST
2:5C
XSYSRST
2:3B;5C;7B
PWD
2:6E
M-TRSTN
HTRCTL
2:3B
KSCLK
2:2A
SDMA[0-12]
6D
OPERST
2:2A
NSDCAS
6E
MMB
2:5C
NLDEN
2:2E
SDBA0
6E
CHG
2:3C
L344
15AG102
RA316
47
1
2
3
4
5
6
7
8
NVIDEO
2:2E
TNR
2:2D
CRM5
2:6F
RA314
47
1
2
3
4
5
6
7
8
R369
47
M-TMS
CRM0
2:6E
CRM3
2:6E
DEV
2:3C
RA315
47
1
2
3
4
5
6
7
8
FANON1
2:5A
SDBA1
6E
+3.3V
NFROE
7C
REGIST
2:2D
THRMSTR0
2:2A
R302
F49.9
NFRWE
7B
M-TCK
KSTART
2:2A
POLCLK
2:2F
RA320
47
1
2
3
4
6
5
5
7
8
SDMD[0-15]
THRMSTR1
2:3B;2:7D
NHSYNC
2:2E
FANDET1
2:5A
+3.3V
R363
10k
R360
NC
( )
R361
10k
R362
NC
( )
R338
10k
TP_CHKSEL
R304
100
R365
( )
NC
R364
10k
RA321
47k
1
2
3
4
5
5
5
5
6
7
8
RA322
47k
1
2
3
4
6
7
8
RA323
47k
1
2
3
4
6
7
8
RA324
47k
1
2
3
4
6
7
8
IC300
SDMD0
T1
SDMD1
T2
SDMD2
U1
SDMD3
U2
SDMD4
V1
SDMD5
V2
SDMD6
W1
SDMD7
W2
SDMD8
AA1
SDMD9
AA2
SDMD10
AB1
SDMD11
AB2
SDMD12
AC1
SDMD13
AC2
SDMD14
AD1
SDMD15
AD2
SDMD16
F1
SDMD17
F2
SDMD18
G1
SDMD19
G2
SDMD20
H1
SDMD21
H2
SDMD22
J1
SDMD23
J2
SDMD24
L1
SDMD25
L2
SDMD26
M1
SDMD27
M2
SDMD28
N1
SDMD29
N2
SDMD30
P1
SDMD31
P2
SDUDM0
E1
SDUDM1
R1
SDLDM0
R2
SDLDM1
AE1
NSDCS
P3
NSDCS2
H3
SDBA1
M4
SDBA0
N3
NSDCAS
T3
NSDRAS
T4
NSDWE
U3
SDCKE
V3
SDCLK
Y2
SDCLK2
K2
BZVDD33
R3
BZRST33
R4
FRMD5
D15
FRMD6
C15
FRMD7
A16
FRMA0
B16
FRMA1
D16
FRMA2
C16
FRMA3
A17
FRMA4
B17
FRMA5
C17
FRMA6
A18
FRMA7
B18
FRMA8
D18
FRMA9
C18
FRMA10
A19
FRMA11
A21
FRMA12
B21
FRMA13
D21
FRMA14
C21
FRMA15
A22
FRMA16
B22
FRMA17
A23
FRMA18
C22
FRMA19
B23
FRMA20
A24
FRMA21
B24
FRMA22
A25
FRMA23
C23
FRMA24
E24
NFRCE
A13
NFROE
B13
NFRWE
C13
SDMA0
L4
SDMA1
L3
SDMA2
J4
SDMA3
J3
SDMA4
AC3
SDMA5
AB3
SDMA6
AA4
SDMA7
AA3
SDMA8
Y3
FRMD0
A14
FRMD1
B14
FRMD2
C14
FRMD3
A15
FRMD4
B15
SDMA9
W4
SDMA10
M3
SDMA11
W3
SDMA12
V4
IC300
IO0
U24
IO1
U25
IO2
G24
IO3
F26
IO4
J26
IO5
J25
IO6
J23
IO7
U26
IO8
T24
IO9
T23
IO10
T25
IO11
T26
IO12
R24
IO13
R23
IO14
R25
IO15
R26
IO16
P24
IO17
P25
IO18
P26
IO20
N26
IO21
H26
IO22
N25
IO23
N24
IO24
F23
IO25
M26
IO26
M25
IO27
J24
IO28
H25
IO29
A7
IO30
B7
IO31
C7
IO32
D7
IO33
M23
SCIO0
AF20
SCIO1
AE20
SCIO2
AC20
SCIO3/EXSEN0
AD20
SCIO4/EXSEN1
AF21
SCIO5/EXSEN2
AE21
SCIO6/EXSEN3
AC21
SCIO7
AD21
SCIO12
AF22
SCIO13
AE22
SCIO14
AF23
SCIO15
AD22
SCIO16
W23
SCIO17
W24
SCIO18
W25
IO34
M24
IO35
L26
IO36
L25
IO37
L23
IO38
L24
IO39
K26
IO40
K25
IO41
K24
IO42/MMA
A12
IO43/MMXA
B12
IO44/MMB
D12
IO45/MMXB
C12
IO46/OPMA
A11
IO47/OPMXA
B11
IO48/OPMB
D11
IO49/OPMXB
C11
IO50/CRM0
A10
IO51/CRM1
B10
IO52/CRM2
C10
IO53/CRM3
A9
IO54/CRM4
B9
IO55/CRM5
C9
IO56/ADFMEN
D9
IO57/CRMEN
A8
IO58
G26
IO59
G25
IO60
F25
IO61
F24
IO62
H24
IO63
H23
IO64
E26
IO65
E25
IO66
D26
MMPWR
B8
OPMPWR
C8
CRMPWR
D8
HTRCTL
AD19
THRMSTR0
C19
THRMSTR1
D19
TONE
B20
THRMAVDD
A20
THRMAVSS
B19
TONEAVDD
C20
SCIO19/EXSEN4
W26
SCIO20
V23
SCIO21
V24
SCIO22
V25
SCIO23
V26
SCIO24
G23
TONEAVSS
D20
TEST
AC11
CLKSEL
AD11
NWDTRST
AC18
NRST
AD18
R391
10k
L345
15AG102
L346
15AG102
L347
15AG102
RA325
47
1
2
3
4
5
6
7
8
C326
K0.01u
C351
J100p
NREADY
2:2F
POLON
2:2F
+3.3V
UARTRX
R399
10k
UARTTX
BELL
3:6B
CNGMUTE
3:6E
CIDRLY
3:6B
SPMUTE
3:7D
LINERLY
3:6C
DAOUT
2:2A;3:6E
P_SHORT
3:3B
BREAK
3:5B
ALC
3:3C
MSEL2
2:5C
MMPWR
2:5C
DRUM_LIFE
2:3D
OPC_CNTCT
2:3D
VFUSECUT
2:3C
PWRDWN
2:1B
C300
K0.1u
C301
K0.1u
C309
K0.027u
FAX_RX
3:3D
CID_RX
3:4D
F_MUTE
3:3D
IC301
2 VDD
4
OUT
1
GND
3
CD
DTMFMUTE
3:4D
R370
NC
( )
L372
15BD601
wADF
NC
wFAX
10K
10K
10K
NC
10K
w/oADF
10K
w/oLAN
NC
NC
10K
NC
NC
wLAN
w/oFAX
1/3
1
-1
KX-MB1520FX MAIN BOARD (No.1) (1/3)
R360
R365
R364
R363
R362
R361
(1-2 Phase excitation)
CRM0
CRM1
CRM2
CRM3
CRM4
CRM5
Summary of Contents for KX-MB1520FX7
Page 52: ...52 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 6 10 3 5 Waveform ...
Page 56: ...56 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW ...
Page 68: ...68 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW ...
Page 75: ...75 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW wave form ...
Page 77: ...77 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW wave form ...
Page 100: ...100 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 10 1 2 Button Code Table ...
Page 108: ...108 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW KX MB1530 ...
Page 141: ...141 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 12 3 8 3 Skew ...
Page 147: ...147 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 12 3 9 2 Skew ADF ...
Page 159: ...159 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW ...
Page 161: ...161 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW ...
Page 166: ...166 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW ...
Page 167: ...167 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW ...
Page 175: ...175 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW Toner detection flow ...
Page 188: ...188 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 2 CHG 3 TRA ...
Page 189: ...189 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 4 DEV DC ...
Page 190: ...190 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 5 DEV AC ...
Page 191: ...191 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 6 TRA ...
Page 218: ...218 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 14 10 How to Remove LVPS ...
Page 236: ...236 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 14 24 7 Fuser section ...
Page 255: ...255 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW 15 6 1 NG Example ...
Page 258: ...258 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW Memo ...
Page 263: ...263 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW Memo ...
Page 271: ...271 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW Memo ...
Page 288: ...288 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW Memo ...
Page 294: ...294 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW Memo ...
Page 395: ...395 KX MB1520FX7 KX MB1520FX8 KX MB1520FXW KX MB1530FX7 KX MB1530FXW ...