KX-UT248RU, KX-UT248RU-B (serv.man2) - Panasonic PBX Service Manual Simplified (repair manual). Page 7

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7
KX-UT248RU/KX-UT248RU-B
1.3.4.
Main Board No.4
Change from the Original Service Manual Section 12.4
(10)
(9)
+
-
+
-
C
E
B
A
D
F
3
6
4
2
5
8
7
HSSPOUT
001:4E
C140 330p
R130
0
DG
BKLT
001:2B
L101
C106 0.22u
C109100p
SPP
001:4D
DG
DG
C170 0.1u
DG
DG
C115
1u
C105 0.22u
C131
NC
C128
1000p
C129
0.01u
DL101
1
2
3
C113
1000p
SPAMPEN
001:9D
C118
NC
C130
NC
C108100p
SPN
001:4D
L102
C176 1000p
R121 220
C136
NC
R123 2.2k
R128
0
C110 100p
R120
220
R107 470
D102
R129
0
R131 2.2k
R132
0
C177
NC
R125
220
C139
NC
C138 NC
JK101
1
2
3
4
5
C137
0.47u
C193
NC
C135
0.47u
D106
C192 330p
R133
0
D107
C191
NC
R126
220
R165 330
C194 NC
L105
HEADSET_SPOUT
001:4F
HEADSET_MIN
001:4D
C166 10u
C150
1u
R166 2.2k
C165 1000p
I2C_SDA
001:2B
ASICRST
001:2B
L103
OPE_VCC
003:A3
L104
R168
0
R169
0
L106
INT0
001:8C
DG
ASICCLK
001:2B
I2C_SCL
001:2B
C168 0.1u
L107
C141 1000p
IC101
1
STBY
2
NC
3
IN+
4
IN-
5
OUT+
6
VDD
7
GND
8
OUT-
9
FIN
D101
D105
R140 470
R134 470
C149 100p
R145 NC
R160
0
R161
0
HSMICINP
001:4D
HSMICINN
001:4D
C155
100p
C154
100p
C151 0.1u
D104
C167
NC
C156 NC
C162 NC
C164
NC
C124 0.47u
C125 0.47u
BKLTP
SPN
OPE-GND
MICN
MICP
BKLTN
SPP
MIP
SP
HESMIC2
MIN
HESSPOUT2
3.3VA
5V
VDD50
3.3VA
D103
DG
L109
SN
5V_PNL
CN101
1
2
3
4
5
6
7
8
9
10
11
12
13
14
3.3VA
DL102
1
2
3
3.3VA_F
C111 10u
IC102
1
NC
2
GND
4
VDD
5
VOUT
3
CE
C189
10u
DG
DG
DG
C107
10u
DG
DG
R103
0
DG
SPIM_CLK
SPIM_MOST
SPIM_CS0
SPIM_MISO
DG
DG
R105
4.7k
BT_FS
001:10F
BT_DIN
001:10F
BT_DOUT
001:10E
R109
150
R110
1M
DG
R111
470
C172 1u
C174 1u
R108 470
C143
100p
DG
C144
100p
C119
1u
C120
1u
DG
C134
100p
C142
100p
C122
1u
C121
1u
MIN
001:4D
MIP
001:4D
AG
DG
R149
100
CD_nRST
001:7C
C173
0.01u
C116
0.1u
C117
100p
C112
0.1u
C114
100p
C127
0.1u
C132
100p
DG
DG
C171
0.1u
C175
100p
DG
DG
C180
100p
C182
0.1u
C185
100p
C187
0.1u
C178
10u
C198
0.1u
C184
100p
DG
C197
0.1u
C181
100p
C186
100p
C1000
0.1u
C183
100p
C199
0.1u
C196
0.1u
DG
C188
100p
C123
100p
C126
0.1u
DG
C179
100p
C190
0.1u
UART2_TX
001:5F
UART2_RX
001:5F
R102
150
DG
DG
C1004 0.1u
C1003
0.1u
C1005
0.1u
DG
C1006
0.1u
DG
DG
R112
NC
3.3VA_F
3.3VA
R114
150
R118
150
R117
NC
R119
NC
R113
150
C145 1000p
C133 1000p
DG
R124
150
3.3VA_F
DG
R136 150
R137
150
X101
16.384M
L108
1.2VA
ZL_RX
ZL_TX
C157
22u
C158
22u
C152
330p
C153
330p
DG
AG
AG
AG
AG
AG
AG
AG
AG
AG
AG
AG
AG
AG
AG
AG
AG
AG
AG
BT_BCLK
001:10E
R104
0
R106
0
IC103
29
GPIO5
30
GPIO6
31
SPIS_MOSI
32
*SPIS_CS
33
SPIS_MISO
34
SPIS_CLK
35
VSSIO2
36
VDDIO2
37
SPIM_CLK
38
SPIM_MOSI
39
VSSCORE2
40
VDDCORE2
41
*SPIM_CS0
42
*SPIM_CS1
43
SPIM_MISO
44
GPIO7
45
GPIO8
46
GPIO9
47
GPIO10
54
VDDIO3
55
P0P_CLKO
56
P0PCMO
57
*P0FP/P0ENA1
58
VSSCORE3
59
VDDCORE3
60
P0PCMI
61
NC9
62
PCM_LBCI
63
VSSDPLL
64
VDDDPLL
65
PCM_CLKI
66
VDDOSC
67
VSSOSC
68
VDDOSCIO
69
OSCO
70
OSCI
71
DVSSAPLL
72
DVDDAPLL
79
C0_DACO-
80
C0_AVDD
81
C0_AVSS
82
C0_BFO+
83
C0_ADCI-
84
C0_ADCI+
85
C0_BFO-
86
AGUARD
87
BIAS_VCM
88
BIAS_RF+
89
BIAS_RF-
90
TEST1
91
TEST2
92
C1_BFO-
93
C1_ADCI+
94
C1_ADCI-
95
C1_BFO+
96
C1_AVSS
97
C1_AVDD
4
TMS
5
TCK
6
TDO
7
DGUARD
8
*RST
9
IC
10
UART_RX
11
UART_TX
12
I2S_SCK/P1NA2
13
VSSCORE1
14
VDDCORE1
15
I2S_MCLK/P1P_CLKI/O
16
VSSIO1
17
VDDIO1
18
I2S_LRCK/*P1FP/P1ENA1
19
I2S_SDI/O/P1PCMO
20
I2S_SDI/P1PCMI
21
GPIO0
22
GPIO1
26
NC4
27
GPIO3
28
GPIO4
48
P0ENA2
49
NC5
50
NC6
51
NC7
52
NC8
53
VSSIO3
73
AVSSAPLL
74
AVDDAPLL
75
NC10
76
NC11
77
NC12
78
C0_DACO+
98
C1_DACO-
99
C1_DACO+
100
NC13
1
NC1
2
*TRST
3
TDI
23
GPIO2
24
NC2
25
NC3
C101
22u
C104
22u
C146
1000p
DG
C148
0.01u
R115
2.2
C159 10u
AG
R138
2.2
AG
C160 10u
R127 2.2k
R122 2.2k
R101 330
R116
330
C102 10u
C103 10u
C1001
12p
C1002
15p
IC105
3
2
1
IC105
5
6
7
IC105
4
GND
8
VCC
C1011
0.47u
AG
C1009 33p
3.3VA
R143
4.7k
R144
2.7k
C195
10u
AG
C1010
NC
3.3VA
AG
C163
0.1u
C161
100p
C1012
NC
AG
DG
C1013
NC
C147 0.01u
R148
4.7k
R147
0
C10071000p
C10081000p
C169
470p
R142
30k
R135
0
R146
0
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