Read Panasonic KX-UT248RU / KX-UT248RU-B (serv.man2) Service Manual Simplified online
5
KX-UT248RU/KX-UT248RU-B
1.3.2.
Main Board No.2
Change from the Original Service Manual Section 12.2
(13)-
(2)
(12)-
(1)
(13)-
(1)
(12)-
(1)
(12)-
(2)
(11)
(2)
(16)-
(2)
(20)-
(2)
(23)-
(2)
(17)-
(2)
(21)-
(2)
(14)-
(2)
(18)-
(2)
(22)-
(2)
(15)-
(2)
(19)-
(2)
(17)-
(1)
(21)-
(1)
(16)-
(1)
(20)-
(1)
(23)-
(1)
(15)-
(1)
(19)-
(1)
(14)-
(1)
(18)-
(1)
(22)-
(1)
L1
L2
C
E
B
A
D
F
3
6
4
2
5
8
7
MDI_WA_P
MDI_WA_N
MDI_WB_P
MDI_WB_N
MDI_WC_P
MDI_WC_N
MDI_WD_P
MDI_WD_N
MDI_PA_P
MDI_PA_N
MDI_PB_P
MDI_PB_N
MDI_PC_P
MDI_PC_N
MDI_PD_P
MDI_PD_N
MDI_WC_N
MDI_WC_P
MDI_WD_N
MDI_WD_P
MDI_WA_N
MDI_WB_N
MDI_WB_P
mdi_wa_p_1
mdi_wa_n_1
mdi_wb_p_1
mdi_wb_n_1
mdi_wc_p_1
mdi_wc_n_1
mdi_wd_n_1
mdi_wd_p_1
MDI_WA_P
MDI_PA_N
MDI_PB_P
MDI_PC_P
MDI_PB_N
MDI_PC_N
MDI_PD_P
MDI_PD_N
MDI_PA_P
mdi_pd_n_1
mdi_pb_n_1
mdi_pa_n_1
mdi_pd_p_1
mdi_pc_n_1
mdi_pc_p_1 mdi_pb_p_1
mdi_pa_p_1
DG
JK402
1
2
3
4
5
6
7
8
9
JK401
1
2
3
4
5
6
7
8
9
C418
0.1u
DG
C419
0.1u
C420
0.1u
E_TXEN
001:6C
E_RXD1
001:6C
E_TXD0
001:6C
E_TXD1
001:7C
E_TXD2
001:9C
E_TXD3
001:7C
E_RXD0
001:7C
E_RXD2
001:9C
E_RXD3
001:6C
D409
4
1
3
2
DG
R449
75
C447
0.047u
R450
75
R451
75
R456
75
C448
0.047u
C449
0.047u
C450
0.047u
C465
0.01u
DG
C466
0.01u
C467
0.01u
C468
0.01u
C469
0.01u
C470
0.01u
C471
0.01u
C472
0.01u
DG
E_MDIO
001:6C
E_TXER
001:6C
E_RXCLK
001:8C
E_TXCLK
001:7C
R410
47
E_RXDV
001:7C
R406
47
E_CRS
001:6C
R408
47
E_COL
001:6C
E_MDCLK
001:6C
PHY_nRST
001:6C
PHY_INT
001:6C
C403
0.01u
R401
0
DG
R421
1k
R422
1k
R425
1k
R424
1k
R423
1k
R416
1k
DG
R426
4.7k
R427
4.7k
R428
NC
R429
NC
DG
R418
4.7k
R420
4.7k
R415
4.7k
DG
PoE_VSS
LF409
1
2
3
4
C457 1000p 100
PoE_G
D403
1A
C404
1u25
C444
1u
100
PoE_DC
R403
1M
DG
C454
NC
R432
75
C412
0.047u
R430
75
C411
0.047u
R433
75
C413
0.047u
DG
C414
0.047u
R431
75
D411
4
1
3
2
C421
0.1u
C422
0.1u
C423
0.1u
C424
0.1u
C432
0.1u
C427
0.1u
C430
0.1u
DG
C431
0.1u
C428
0.1u
C426
0.1u
C429
0.1u
C446
0.1u
C437
0.1u
C440
0.1u
DG
C445
0.1u
C438
0.1u
C436
0.1u
C439
0.1u
C433
0.1u
C479
0.1u
DG
C474
0.1u
C477
0.1u
C476
0.1u
C475
0.1u
C478
0.1u
C480
0.1u
D401
DG
DG
C456
NC
C455
NC
C451
22u
100
C417
10u
C425
10u
C435
10u
C473
10u
R417
2.49k
1%
L407
L402
L414
L401
L409
L410
L412
L413
C453
0.033u
25
R448
4.42k
1%
R447
24.9k
1%
R445
100k
1%
C463
560p
50
C462
15p
50
PoE_G
C441
0.22u
C464
1u
25
C443
NC
C461
1u
100
C442
1u
100
R438
1.5k
R434
0
R435
0
R411
10k
R439
510
C409
NC
D404
D405
DG
D414
D408
DG
D413
D407
D412
D406
DG
DG
D419
D415
DG
D420
D416
DG
D421
D417
DG
D422
D418
DG
R446
75k
F401
1A
C407
4.7u
LF410
23
14
LF411
23
14
LF413
23
14
LF414
23
14
D423
NC
D410
D402
R407
4.7k
R442
4.7k
1
2
3
45
6
7
8
DG
R436
4.7k
R441
4.7k
R413
NC
R458
4.7k
C452
0.047u
1.2V
VDD33
VDD33
AVDD12
VDD12
12V
3.3V
VDD33
AVDD33
VDD33
AVDD33
AVDD12
VDD12
VDD33
DG2
PoEDCOUT
LF401
23
14
LF402
23
14
LF403
23
14
LF404
23
14
C416
100p
C459
100p
C481
100p
C483
100p
C490
100p
C486
100p
C491
100p
C488
100p
C492
100p
C493
100p
C458
100p
C460
100p
C484
100p
C487
100p
C485
100p
C482
100p
C489
100p
C497
100p
C499
100p
C498
100p
C496
100p
C494
100p
C5000100p
C495
100p
C5001
100p
C5003
100p
C5002
100p
R463
1.5k
R459
NC
R460
4.7k
R461
4.7k
R443
4.7k
VDD33
VDD33
T403
4
20
5
24
21
19
22
3
2
1
6
23
17
16
18
13
15
14
12
11
10
9
8
7
T402
4
20
5
24
21
19
22
3
2
1
6
23
17
16
18
13
15
14
12
11
10
9
8
7
PoE-
PoE+
R454 4.7k
1
2
3
4
5
6
7
8
R419
4.7k
Q401
4
5
6
6
7
8
8
32
1
IC401
103
P2MRXDV/P2PTXEN/P2MRXCLTL/P2MCRSDV
104
VDD12_6
105
P2MRXD0/P2PTXD0
106
P2MRXD1/P2PTXD1
107
P2MRXD2/P2PTXD2
108
P2MRXD3/P2PTXD3
109
DVDD_6
110
P2MRXD4
111
P2MRXD5
112
P2MRXD6
113
P2MRXD7
114
VDD12_7
115
SDA/MDIO
116
SCL/MDC
117
LEDDA/LED3/LEDMODE0
118
LEDCK/LED7/LEDMODE1
119
VDDIO
120
*RESET
121
AVDDPLL
122
RSVD11
123
AVSSPLL
124
XTAL1
125
XTAL2
126
AVDD33_6
127
AGND11
128
AVDD33_7
13
AVDD12_2
14
AVDD33_2
15
P0MDICP
16
P0MDICN
17
AGND3
18
AGND4
19
P0MDIDP
20
P0MDIDN
21
AVDD12_3
22
AVDD12_4
23
AVDD33_3
24
P1MDIAP
25
P1MDIAN
26
AGND5
27
AGND6
28
P1MDIBP
29
P1MDIBN
30
AVDD12_5
31
AVDD33_4
32
P1MDICP
33
P1MDICN
34
AGND7
35
P1MDIDP
36
P1MDIDN
37
AVDD12_6
38
AVDD33_5
39
RSVD1
40
RSVD2
41
RSVD3
42
AGND8
43
RSVD4
44
AVDD12_7
45
RSVD5
46
RSVD6
47
AGND9
48
AVDD12_8
49
AGND10
50
RSVD7
51
RSVD8
52
AVDD12_9
53
RSVD9
54
RSVD10
55
WAKEUP
56
BGPIO3
57
INT
58
VDD12_1
59
ENJF
60
LEDSPSEL
61
DVDD_1
62
BGPIO2
63
VDD12_2
64
BGPIO1
65
BGPIO0
66
LED6
67
LED5/AGPIO4
68
LED4/AGPIO3
69
LED2/AGPIO2
70
DVDD_2
71
LED1/AGPIO1
72
LED0/AGPIO0
73
P2SPD1
74
P2SPD0
75
VDD12_3
76
P2LNKSTA
77
P2IF2
78
P2IF1
79
P2IF0
80
DVDD_3
81
RXDLY
82
TXDLY
83
ENEEPROM
84
P2MRXER/P2PTXER
85
VDD12_4
86
P2MTXD7/PHYADR4
87
P2MTXD6/PHYADR3
88
P2MTXD5/FWMODE1
89
P2MTXD4/FWMODE0
90
DVDD_4
91
P2MTXD3/P2PRXD3
92
P2MTXD2/P2PRXD2/RSVD
93
P2MTXD1/P2PRXD1/DISPBLK
94
P2MTXD0/P2PRXD0
95
VDD12_5
96
P2MTXEN/P2PRXDV/P2MTXCTL
97
P2MGTXC
98
P2MCOL/P2PCOL
99
DVDD_5
100
P2MCRS/P2PCRS
101
P2MTXC/P2PRXC
102
P2MRXC/P2PTXC/P2MRCLK
1
NC1
2
NC2
3
ATEST
4
MDI_REF
5
AGND1
6
AVDD33_1
7
AVDD12_1
8
P0MDIAP
9
P0MDIAN
10
AGND2
11
P0MDIBP
12
P0MDIBN
129
DGND
IC402
1
TMR
2
FB
3
COMP
4
SEN
5
NC
6
SENP
7
VDD
8
DET
9
CLASS
10
VSS1
11
RTN
12
RSP
13
RSN
14
COM
15
GATE
16
AUX
17
MODE
18
VBIAS
19
BL
20
FREQ
21
VSS2
R414 4.7k
1
2
3
4
5
6
7
8
C5004
10u
C402
12p
C401
10p
L404
0
R440
150
C5005
NC
C5006
NC
C5007
1000p
C5008 NC
R409
NC
0.5
R444
NC
0.25W
R452
0
DG
C415
NC
L415
L416
R404
100
R405
100
R412
100
1
2
3
4
5
6
7
8
L406
220u
C405
22u
25
R437 0.51 0.5W
L403
C408
0.1u
C5009
10u2
5
C5010
10u2
5
C5011
10u25
C5012
10u2
5
D424
NC
R453
NC
R455
NC
R457
0
L411
NC
X401
25M
1
2
4
3
R402
470
CLASS 0
MAIN BOARD No.2
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