Motorola PM400 Service Manual Page 202
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- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
Rated. / 5. Based on customer reviews
UHF 25-40 W Band 2 PCB 8486577Z01 / Schematics 4-11
100.n
C2076
150.n
L204
3900pF
C2012
3900pF
C2030
DNP
DNP
L203
150.n
D203
C2069
1.2p
6.2pF
C2064
100.0n
L211
L206
12.5n
2.4p
C2066
8.200p
100.0n
L213
C2063
L207
7.80n
D204
1
SH201
SHIELD
VCO
Shield
V_SF
Q201
C2062
12p
L214
47nH
47.
R232
R221
220.
C2057
5.1p
C2056
12pF
C2061
5.1p
VCO_MOD
V_SF
C2059
5.1p
C2073
1.p
5.1p
C2058
R233
47.
R212
47.K
6.8K
R211
47nH
L215
R222
220.
680nH
L201
120.p
C2038
V_SF
18.
R235
100n
C2009
V_SF
C2040
120.p
C2008
0.1uF
51.
R231
10n
C2022
680nH
L202
2.7K
R216
0662057A62
3.6K
R215
1.n
C2021
120.p
C2039
C2010
100n
C2042
120.p
C2041
120.p
510.
R220
0.1uF
C2011
C2007
0.1uF
L209
100.0n
100.0n
L208
V_SF
1.K
R218
0.
R203
C2044
3.3p
C2043
6.8p
C2019
120.p
120.p
C2018
R230
75.
9R
IF200
1
2113740L13
6.2pF
C2071
L216
18.n
2113740L13
C2070
6.2pF
15p
C2060
TX_INJ
SHIELD
SH202
1
R223
220.
100n
C2003
C2037
120.p
2113740F53
120pF
C2065
C2032
120.p
R214
4.7K
L212
33n
R227
82.
820.
1n
R219
R213
C2031
1
3
2
4.7K
BFS540
Q200
RX_INJ
R201
10.K
120.p
C2029
NC
NC
19
TRB_IN
16
TX_BASE
15
TX_EMITTER
1
TX_IADJ
10
TX_OUT
13
TX_SWITCH
14
VCC_BUFFERS
18
VCC_LOGIC
GND_LOGIC
17
12
PRESC_OUT
5
RX_BASE
6
RX_EMITTER
2
RX_IADJ
8
RX_OUT
7
RX_SWITCH
3
SUPER_FLTR
50U54
U201
4
COLL_RFIN
20
FLIP_IN
11
GND_BUFFERS
9
GND_FLAG
D205
VCOBIC Shield
TO SHEET 2
UHF2 (438-470 MHz) 25-40 W Synthesiser and VCO (Sht 2 of 2)
- Foreword 3
- Document Copyrights 3
- Disclaimer 3
- SAFETY INFORMATION 10
- Chapter 1 12
- INTRODUCTION 12
- 3.2 Motorola Online 13
- 3.3 Mail Orders 13
- 3.4 Telephone Orders 13
- 3.5 Fax Orders 13
- 4.0 Radio Model Information 14
- 1-4 INTRODUCTION 15
- Chapter 2 16
- MAINTENANCE 16
- 2-2 MAINTENANCE 17
- 2-4 MAINTENANCE 19
- 2-6 MAINTENANCE 21
- 2-8 MAINTENANCE 23
- SERVICE AIDS 24
- 2.0 Test Equipment 25
- OVERVIEW 30
- 1-2 OVERVIEW 31
- 2.3 Keypad Keys 33
- 2.6 Speaker 34
- 3.1 Power Supplies 35
- 3.2 SPI Interface 35
- 3.3 Keypad Keys 36
- 3.4 LCD Driver 36
- 3.7 Speaker 37
- (see table on next page) 39
- Key_Row Voltage TP402 40
- 2.1 Control Head Failure 41
- SHOWN FROM SIDE 1 46
- Control Head CM200 Schematic 47
- Bottom Side 49
- Top Side 49
- UHF2, 1-25 W, 438-470 MHz 58
- mP U403 90
- OL 79B02969C76-O 97
- OL 79B02969C78-O 97
- SHOWN FROM SIDE 2 98
- OL 79B02969C77-O 98
- OL 79B02969C79-O 98
- DC & AUDIO 100
- SHEET 2 OF 8 102
- 73D02968C74-O 102
- FRACN_63A27 103
- SHEE 5 OF 8 104
- TO SHEET 1 105
- SHEET 6 OF 8 106
- SHEET 7 OF 8 108
- SHEET 8 OF 8 110
- SHEET 3 OF 8 111
- List 1-25 W 112
- COMPARTMENT 123
- Option Board 126
- Keypad/Display 126
- CM200/CM300/PM400 150
- Computer Software Copyrights 151
- Table of Contents 152
- UHF2, 25-40 W, 438-470 MHz 156
- 2.0 Technical Specifications 157
- Transmitter 158
- Receiver 158
- THEORY OF OPERATION 160
- 2.2 Receiver Back End 161
- 3.3 Final Stage 162
- 3.4 Directional Coupler 162
- 3.5 Antenna Switch 162
- 3.6 Harmonic Filter 163
- 3.7 Power Control 163
- 4.1 Reference Oscillator 163
- 4.2 Fractional-N Synthesizer 164
- 4.4 Synthesizer Operation 166
- 5.1 Radio Power Distribution 167
- 5.2 Protection Devices 169
- 5.3 Automatic On/Off 169
- 5.6 SBEP Serial Interface 171
- 2-14 THEORY OF OPERATION 173
- 7.0 Transmit Audio Circuits 174
- 2-16 THEORY OF OPERATION 175
- 8.1 Sub-Audio Data (PL/DPL) 176
- 8.2 High Speed Data 177
- 9.1 Squelch Detect 178
- 2-20 THEORY OF OPERATION 179
- 9.4 Handset Audio 180
- 10.2 Alert Tone Circuits 181
- Chapter 3 182
- TROUBLESHOOTING CHARTS 182
- uP U403 188
- 3-8 TROUBLESHOOTING CHARTS 189
- Chapter 4 192
- Internal SPKR+ Jumper 197
- MRF1513’s Thermal pad 199
- LVFRACN Shield 201
- VCOBIC Shield 202
- FRONT-END SHIELD 203
- MIXER SHIELD 203
- IFAMP_DEC1 204
- IFAMP_DEC2 204
- AUDIOOUT 204
- AUDIO_FEED 204
- POWER SUPPLY 205
- TO SHEET 2 208
- UHF3, 25-40 W, 465-495 MHz 256
- VCOBIC Shield 330
- VCO Shield 330
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