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

10-34
2
1
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 NJM324
R597
C568 R509 U501-A
C517 C523
4.7K
2.2K
10nF 22nF 1nF
R529 47K
+3.3V
R530 47K
R531 47K
C570
47pF
R540 47K

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

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