Figure 10-23. Microprocessor And Keypad (Mdc1200 And Qcii) Schematic Diagram - Motorola P100 Series Detailed Service Manual

Circuit Board/Schematic Diagram and Parts List (VHF: 136–174 MHz)
+5V
R171 R172 R173
10K 10K 10K
R174 120K
R175 47K
R176 30K
FTV
R177
56K
Q120
C143
KRC404
0.1uF
Q121
KRC404
Q122
KRC404
+3.3V
R194
C140
6.8K
47nF
TX_AF1
MIC1
C142
C141
470pF
NA
DTMF/MDC_ENC
R165
3K(1%)
Q112
R1005 R1004
KTA2014
10nF 10K
BEEP
C E
+3.3V
R167
C198 Q111
R1006 B 100K R169
NA KTA2014
NA 1.2K
C E
R163 R168
100K 100K
B
R164
100K
BEEP_CON
DTMF_CON
SWB+
R153
68K(1%)
LOW_BATT
C195 C194
R154
220pF 0.1U CR101
47K(1%)
NA
Q4
Q3
Q2
Q1
U601_SW
PTT2
20KHZ_SEL
PLL_PS
BUSY
PLL_CLK
PLL_STB
PLL_DATA
RX_EN
SQ_CS
TX_PWR_LOW
TX_PWR_CS
76
QC2_EN QC2_EN
77
BEEP_CON
BEEP_CON
78
MIC_MUTE2
MIC1
79
DTMF_DEC_EN DTMF_DEC_EN
80
FREQ_CON3
81
FREQ_CON2
82
FREQ_CON1
83
AUDIO_MUTE_CON
AUDIO_MUTE_CON
84
TX_EN1 TX_EN1
85
TX_EN2 TX_EN2
86
N/S_SW
N/S_SW
87
RX_TONE_CON1 RX_TONE_CON1
88
RX_TONE_CON2 RX_TONE_CON2
89
EV_U/D EV_U/D
90
TIGHT_SQ
TIGHT_SQ
91
VOX_IN
VOX
92
LOW_BATT LOW_BATT_IN
93
MOD_CON_CS MOD_CON_CS
94
A_GND
95
RSSI_IN
RSSI
+3.3V
96
V_REF
R113
97
A_VCC
47K
C123 C124
98
0.1uF 1nF LCD_CS
99
LCD_CLK
RX_TONE_EN
100
R178
R115
100K
10k
+3.3V
R179 R182
R180
51k 200k
1 2 100k
U107 TONE_INPUT
KIA 7027AT
C145
C144
15pF
0.1uF(K)
R190
R184
FL101
15K
15K
14.7456MHZ
C146 R148
15pF 1M
+3.3V
B_S2
B_S1
A_S2
A_S3
FUN_KEY1
FUN_KEY2
PROGRAM_DATA
LED(GREEN)
LED(RED)
8
1
+3.3V VCC A0
7 2
R189
OC A1
10K
6 3
SCL A2
5
SDA VSS
R139 U104
10K 24LC64
C147
0.1uF(K)
U102_SDATA
U102_SCLK
U102_CSN
50
SW_IN3
DTMF_CON
49
DTMF_CON
48
SW_SCAN1
47
SW_SCAN2
46
SW_SCAN3
45
SW_SCAN4
44
PTT PTT
43
PGM_BUTTON1
42
PGM_BUTTON2
41
PGM_BUTTON3
U101
40
LEFT_BUTTON
M30302FGPGP R193 10K
39
38
RIGHT_BUTTON
37
MDC_EN
36 MDC_EN
LED(RED)
35
LED(GREEN)
34 R195 100R
PRG/CLONE_RX
33 R152 680R
PRG/CLONE_TX
32
FUN_KEY2
31
AK_DATA
30
AK_CLK
AK_CSN
29
BEEP_L_CON1
28
27 PLL_LD
DTMF/MDC_EC
26
DTMF/MDC_ENC
MDC/QC_IN
TONE_IN
R185 R114
0R 10K

Figure 10-23. Microprocessor and Keypad (MDC1200 and QCII) Schematic Diagram

LCD101
LCD_BEACON
+3.3V LCD Flex.PCB
SWB+
J101
05004HR - 07C01S(G)
Q110
KRC101
1
1 2
2 3
3 4
4 5
5 6
6
7
7 8
9
8
9 10
10 11
12
11
13
12
14
13
14 15
15 16
16 17
17 18
18 19
19 20
20 21
22
21
22
GND
2
1
MIC1
0B27P44
10-31
R155
470R
CR110 CR111
R156
SH201
1K
CR112 CR113
R157
1K
CR114 CR115 R158
1K
CR110~CR115 : BL - HG036
+3.3V
L_ARROW R_ARROW
P1 P2 P3
R108 4.7K
1
2 3
R109 4.7K
4 5
6
R112 4.7K
7 9
8
R119 4.7K
* 0 #