Figure 10-26. Transmitter Audio Filter And Sub-Tone (Mdc1200 And Qcii) Schematic Diagram - Motorola P100 Series Detailed Service Manual

10-34
MIC1
0B27P44 (2.8mm)
C543
1.2nF
C522
5.6nF
R508
TO_VCTCXO&VCO 1K 6 R514 R515
7 24K
12K
5
NJM324
U501-B
R597
C568 R509
C517 C523
4.7K
10nF 2.2K 1nF
22nF
R529 47K
+3.3V
R530 47K
R531 47K
R540 47K

Figure 10-26. Transmitter Audio Filter and Sub-tone (MDC1200 and QCII) Schematic Diagram

+3.3V
J601
0980683Z01
R194 1
3
6.8K
2
C140
47nF 4
2 5
6
1
7
C142 L604
C141
470pF 2.2uH(1608) PROGRAM_DATA
NA
CR601
KDZ5.1V
1/2VCC
+5V
4
NJM324
C529 C530
U501-E
0.1uF 10nF
U502-E
11
NJM324
C544
NA
R519
C524
2M
33nF
8
R516 R518
2 R517 R538
1 10K 15K 5.6K
8.2K
3 NJM324
U502-C
NJM324
U501-A
C542
C525
C548
10nF
330P
NA C547
NA
R536
330K
R544 R526
100R 4.7K
1
NJM324
U502-A
PTT1
FUN_KEY1
FUN_KEY2
PTT2
C570
47pF
R537
Q505
KRA305 1K
+3.3V
Q504
KRC404
TX_AF2
R137
4.7M
C135 47pF
C139
R135
10K
0.1uF(K) CR117
13
KDS160E
14
12
1/2VCC
C137
R136 NJM324
0.1uF(K)
100K U105-D
CR116
+3.3V
KDS160E
R111
C136
NA
0.1uF
R120
47K
Q114
VOX_EN
KRC404
C518
5.6nF
C520
4.7nF
13
R511
R510
C546 9
R513 R512 14
8.2K 15K
0.1uF(K)
8 12
10K 20K
10
NJM324
NJM324
U501-D
R539
U501-C
330K
C549 C521
C550 C519
1.2nF
560pF 560pF 1.2nF
EV_U/D
MOD_CON_CS
+3.3V
+3.3V
U508
8
1
U/D VDO R131
10R
7 2
NC VSS C191
R104 R105
6 220pF
A 3
B C1038 47K
47K
5 47pF
4
R598 W
CS/
20K
MCP4011(503)
C100
1uF(1608)
R599
NA
C528
R520
18nF
560K
9
10
R521
330K
1/2_VCC
R541
C536 330K
15nF
R528
2 R527
82K
100K
3
C551
10uF/10V(A)
C537
2.2nF
Circuit Board/Schematic Diagram and Parts List (VHF: 136–174 MHz)
VOX
R138
220K
C138
0.22U(K)F(1608)
R103
150K
C101
C111
C103
1uF(K) R102
R101
1uF(K) 47pF
10K 47K
R162
C102
R117
820R
R107 2.2nF
8.2K
3.9K
C104
150pF
U101_PIN29(CSN)
U101_PIN30(CLK)
U101_PIN31(SDATA)
+3.3V
R181
150R R150
10K(1%)
C1039
47pF
C153
R106
1uF(K)
47K
R151
C154
12K(1%)
1uF(K)
C119 1
R141
IN+
10nF
100K
2
IN-
R140
3
GS
68K
4
VREF
5
INH
6
PWDN
R146
C120
7
0R
15pF NC
FL102 8
OSC1
3.5795MHz
9
OSC2
C117 1.2nF 10
VSS
DTMF_DEC_EN
R145
MT88L70
R143 91K
1M
C115
27pF C116
27pF C118
10uF / 16V
R144 100K
TONE_INPUT
C106
R118 R116
47nF
1.2K
47K
DTMF/MDC_ENC
R110
270K
C107
0.1uF(K)
C105
15nF
+3.3V
C121
33nF
20
VDD
19
ST/GT
R142
18
EST
330K
17
U101_PIN72
STD
16
NC
15
U101_PIN63
Q4
U101_PIN64
Q3
13 U101_PIN65
Q2
12 U101_PIN66
Q1
11
TOE
U103