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Motorola Pr400 Detailed 6881096c25 B Manual

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    							UHF 465-495 MHz (8486634Z02-O) Schematic Diagrams, Overlays, and Parts Lists12-556881096C25-BJune, 2005UHF (465-495 MHz) Radio Parts List (8486634Z02-O)Circuit 
    RefMotorola 
    Par t No.DescriptionC1
    2109445U32
    CAP, 8pF
    C2 2109445U26 CAP, 9.1pF
    C3
    2109445U18
    CAP, 4.3pF
    C4 2109445U27 CAP, 10pF
    C5
    2109445U32
    CAP, 8pF
    C6 2109445U24 CAP, 7.5pF
    C7
    2109445U26
    CAP, 9.1pF
    C8 2109445U18 CAP, 4.3pF
    C9
    2109445U22
    CAP, 6.2pF
    C10 2109445U13 CAP, 2.7pF
    C11
    2113743L07
    CAP, 390pF
    C12 Not_Placed CAP, 8.2pF
    C13
    2109445U07
    CAP, 1.5pF
    C14 2109445U07 CAP, 1.5pF
    C20
    2113743L07
    CAP, 390pF
    C21 2109445U53 CAP, 68pF
    C23
    2113743L07
    CAP, 390pF
    C25 2113743L07 CAP, 390pF
    C26
    2113743L07
    CAP, 390pF
    C27 2109445U25 CAP, 8.2pF
    C28
    2109445U27
    CAP, 10pF
    C29 2109445U22 CAP, 6.2pF
    C30
    2109445U38
    CAP, 16pF
    C31 2109445U21 CAP, 5.6pF
    C32
    2109445U22
    CAP, 6.2pF
    C33 2109445U42 CAP, 24pF
    C34
    2109445U22
    CAP, 6.2pF
    C35 2109445U22 CAP, 6.2pF
    C36
    2109445U39
    CAP, 18pF
    C37 2109445U25 CAP, 8.2pF
    C38
    2109445U20
    CAP, 5.1pF
    C39 2109445U13 CAP, 2.7pF
    C41
    2109445U27
    CAP, 10pF
    C42 2109445U25 CAP, 8.2pF
    C43
    2109445U40
    CAP, 20pF
    C44 2109445U26 CAP, 9.1pF
    C45
    2109445U37
    CAP, 15pF
    C46 Not_Placed CAP, 10pF
    C47
    Not_Placed
    CAP, 10pF
    C48 0662057M01 RES, 0
    C49
    Not_Placed
    CAP, 3.9pF
    C51 2113743N48 CAP, 82pF
    C52
    2109445U41
    CAP, 22pF
    C53 2109445U26 CAP, 9.1pF
    C55
    2113743M24
    CAP, 0.1uF
    C56 2113743E20 CAP, 0.1uF
    C57
    2113743M24
    CAP, 0.1uF
    C58 2113743N16 CAP, 3.9pF
    C59
    2113743N12
    CAP, 2.7pF
    C60 2113743M24 CAP, 0.1uF
    C61
    2113743N46
    CAP, 68pF
    C62 2113743M24 CAP, 0.1uF
    C63
    2113743M24
    CAP, 0.1uF
    C64 2113743M24 CAP, 0.1uF
    C65
    2113743M24
    CAP, 0.1uF
    C66 2113743M24 CAP, 0.1uF
    C67
    2113743M24
    CAP, 0.1uF
    C68 2113743M24 CAP, 0.1uF
    C69
    2113743M24
    CAP, 0.1uF
    C70 2113743N53 CAP, 130pF
    C71
    2113743E20
    CAP, 0.1uF
    C72 2113743M24 CAP, 0.1uF
    C73
    2113743L33
    CAP, 4700pF
    C74 2113743N42 CAP, 47pF
    C80
    2109445U41
    CAP, 22pF
    C81 2109445U45 CAP, 33pF
    C82
    2109445U46
    CAP, 36pF
    C90 2113743M24 CAP, 0.1uF
    C91
    2311049A57
    CAPP, 10uF
    C92 2113743E20 CAP, 0.1uF
    C93
    Not_Placed
    CAP, 3.6pF
    C99 2113743M24 CAP, 0.1uF
    C100
    2113743L07
    CAP, 390pF
    C101 2113743M24 CAP, 0.1uF
    C102
    2113743M24
    CAP, 0.1uF
    C103 2113743L07 CAP, 390pF
    C104
    2113743N22
    CAP, 6.8pF
    C105 Not_Placed CAP, 3.9pF
    C106
    2113743L07
    CAP, 390pF
    C107 Not_Placed CAP, 27pF
    C108
    2113743L07
    CAP, 390pF
    C109 2113743M24 CAP, 0.1uF
    C111
    2113743L07
    CAP, 390pF
    C112 2113743M24 CAP, 0.1uF
    C113
    2113743L07
    CAP, 390pF
    C114 2113743L07 CAP, 390pF
    C115
    2311049A07
    CAPP, 1uF
    C116 2113743M24 CAP, 0.1uF
    C117
    2113740F65
    CAP, 390pF
    C120 Not_Placed CAP, 8.2pF
    C121
    2113743L07
    CAP, 390pF
    C122 2113740F13 CAP, 2.7pF
    C123
    2113740F17
    CAP, 3.9pF
    C124 2113740F65 CAP, 390pF
    C130
    Not_Placed
    CAP, 3.3pF
    C131 Not_Placed CAP, 2.2pF
    C132
    2113740F23
    CAP, 6.8pF
    C133 Not_Placed CAP, 2.7pF
    C134
    2113740F23
    CAP, 6.8pF
    C135 Not_Placed CAP, 0.5pF
    C136
    2113740F18
    CAP, 4.3pF
    Circuit 
    RefMotorola 
    Part No.Description
    C137 2113740F59 CAP, 220pFC141
    2113740F03
    CAP, 1pF
    C150 2113743L07 CAP, 390pF
    C151
    2113743L07
    CAP, 390pF
    C152 2113743L07 CAP, 390pF
    C153
    2113743K18
    CAP, 0.47uF
    C154 2113743L07 CAP, 390pF
    C156
    2113743L41
    CAP, .01uF
    C157 2113743M24 CAP, 0.1uF
    C158
    2113743L07
    CAP, 390pF
    C159 2113743L07 CAP, 390pF
    C160
    2113743E20
    CAP, 0.1uF
    C170 2113743L07 CAP, 390pF
    C171
    2113743L07
    CAP, 390pF
    C172 2113743L07 CAP, 390pF
    C201
    2113740F59
    CAP, 220pF
    C202 2109445U52 CAP, 62pF
    C203
    2109445U13
    CAP, 2.7pF
    C204 2113743L09 CAP, 470pF
    C205
    Not_Placed
    CAP, 2.7pF
    C206 Not_Placed CAP, 1000pF
    C207
    2113743L09
    CAP, 470pF
    C208 2113743L09 CAP, 470pF
    C209
    2113743L09
    CAP, 470pF
    C210 2113743L09 CAP, 470pF
    C211
    2113743E20
    CAP, 0.1uF
    C212 2113743F18 CAP, 2.2uF
    C213
    2113743L41
    CAP, .01uF
    C214 2113743L17 CAP, 1000pF
    C215
    2113743F18
    CAP, 2.2uF
    C216 2113743E20 CAP, 0.1uF
    C217
    2113743L17
    CAP, 1000pF
    C218 2113743F18 CAP, 2.2uF
    C219
    2113743E20
    CAP, 0.1uF
    C220 2113743N34 CAP, 22pF
    C221
    2113743L41
    CAP, .01uF
    C222 2113743L41 CAP, .01uF
    C223
    2113743L41
    CAP, .01uF
    C224 2113743L41 CAP, .01uF
    C225
    2311049A57
    CAPP, 10uF
    C226 2311049A57 CAPP, 10uF
    C227
    2113743L17
    CAP, 1000pF
    C228 2113743E20 CAP, 0.1uF
    C230
    2113743F18
    CAP, 2.2uF
    C231 2113743L17 CAP, 1000pF
    C232
    2113743E20
    CAP, 0.1uF
    C233 2311049A56 CAPP, 4.7uF
    C240
    2109445U06
    CAP, 1.3pF
    C241 2113743N50 CAP, 100pF
    C243
    0886641Z01
    CAP, 0.1uF
    C244 0888600M25 CAP, .01uF
    Circuit 
    RefMotorola 
    Par t No.Description
    C245
    2311049A08
    CAPP, 1uF
    C251 0888600M03 CAP, 150pF
    C252
    Not_Placed
    CAP, 390pF
    C253 2109445U22 CAP, 6.2pF
    C254
    2109445U15
    CAP, 3.3pF
    C255 2109445U26 CAP, 9.1pF
    C256
    2109445U17
    CAP, 3.9pF
    C257 2109445U35 CAP, 12pF
    C263
    2109445U22
    CAP, 6.2pF
    C264 2109445U14 CAP, 3.0pF
    C265
    2109445U21
    CAP, 5.6pF
    C266 2109445U14 CAP, 3.0pF
    C267
    2109445U26
    CAP, 9.1pF
    C268 2109445U01 CAP, 0.5pF
    C270
    2113743L07
    CAP, 390pF
    C271 2113743L07 CAP, 390pF
    C272
    2113743E20
    CAP, 0.1uF
    C273 2113743L41 CAP, .01uF
    C274
    2113743E20
    CAP, 0.1uF
    C275 2113743L07 CAP, 390pF
    C276
    2109445U16
    CAP, 3.6pF
    C281 2113743L07 CAP, 390pF
    C282
    2109445U18
    CAP, 4.3pF
    C283 2113743L07 CAP, 390pF
    C284
    2113743L07
    CAP, 390pF
    C285 2113743E20 CAP, 0.1uF
    C286
    2109445U17
    CAP, 3.9pF
    C290 2109445U23 CAP, 6.8pF
    C291
    2109445U36
    CAP, 13pF
    C292 2113743L07 CAP, 390pF
    C301
    2113743N42
    CAP, 47pF
    C302 2113743L07 CAP, 390pF
    C303
    2311049A97
    CAPP, 33uF
    C304 2113743L41 CAP, .01uF
    C305
    2113743N50
    CAP, 100pF
    C306 2113741F49 CAP, .01uF
    C310
    2113743L41
    CAP, .01uF
    C311 2113743E05 CAP, .018uF
    C312
    2311049A57
    CAPP, 10uF
    C313 2113743L41 CAP, .01uF
    C314
    2113743L19
    CAP, 1200pF
    C315 2113743L19 CAP, 1200pF
    C316
    2113743L19
    CAP, 1200pF
    C320 2113743E05 CAP, .018uF
    C321
    2311049A57
    CAPP, 10uF
    C322 2113743L41 CAP, .01uF
    C323
    2113743N54
    CAP, 150pF
    C331 2113743L41 CAP, .01uF
    C333
    2113743L41
    CAP, .01uF
    C334 2311049A57 CAPP, 10uF
    C400
    Not_Placed
    CAP, .022uF
    Circuit 
    RefMotorola 
    Part No.Description 
    						
    							12-56UHF 465-495 MHz (8486634Z02-O) Schematic Diagrams, Overlays, and Parts ListsJune, 20056881096C25-BC401 2113743M24 CAP, 0.1uFC402
    2113743L17
    CAP, 1000pF
    C403 2113743N50 CAP, 150pF
    C404
    2113743L17
    CAP, 1000pF
    C405 2113743N50 CAP, 150pF
    C406
    2113743N50
    CAP, 150pF
    C407 2113743L17 CAP, 1000pF
    C408
    2113743L17
    CAP, 1000pF
    C409 2113743L17 CAP, 1000pF
    C410
    2311049A57
    CAPP, 10uF
    C411 2113743M24 CAP, 0.1uF
    C412
    2113743L17
    CAP, 1000pF
    C413 2113743M24 CAP, 0.1uF
    C414
    2113743M24
    CAP, 0.1uF
    C415 2113743L17 CAP, 1000pF
    C416
    2113743L17
    CAP, 1000pF
    C417 2113743L17 CAP, 1000pF
    C418
    2113743M24
    CAP, 0.1uF
    C419 2113743L17 CAP, 1000pF
    C420
    2113743L41
    CAP, .01uF
    C421 2113743L41 CAP, .01uF
    C422
    2113743L41
    CAP, .01uF
    C430 2113743M24 CAP, 0.1uF
    C431
    2113743L17
    CAP, 1000pF
    C432 2113743M24 CAP, 0.1uF
    C433
    2113743L17
    CAP, 1000pF
    C440 2113743L41 CAP, .01uF
    C441
    2113743L41
    CAP, .01uF
    C442 2113743L41 CAP, .01uF
    C443
    2113743L41
    CAP, .01uF
    C444 2113743L41 CAP, .01uF
    C445
    2113743L41
    CAP, .01uF
    C446 2113743L41 CAP, .01uF
    C447
    2113743M24
    CAP, 0.1uF
    C451 2113743M24 CAP, 0.1uF
    C452
    2113743E20
    CAP, 0.1uF
    C453 2311049A56 CAPP, 4.7uF
    C454
    2113743E20
    CAP, 0.1uF
    C455 2113743L48 CAP, .022uF
    C456
    2113743E20
    CAP, 0.1uF
    C457 2113743E20 CAP, 0.1uF
    C458
    2113743E20
    CAP, 0.1uF
    C459 2113743E20 CAP, 0.1uF
    C460
    2113743E20
    CAP, 0.1uF
    C461 2113743L17 CAP, 1000pF
    C462
    2113743E20
    CAP, 0.1uF
    C463 2113743E20 CAP, 0.1uF
    C464
    2113743E20
    CAP, 0.1uF
    C465 2113743L17 CAP, 1000pF
    C466
    Not_Placed
    CAP, 470pF
    C467 2113743L19 CAP, 1200pF
    Circuit 
    RefMotorola 
    Par t No.Description
    C470
    2113743E20
    CAP, 0.1uF
    C471 2113743F18 CAP, 2.2uF
    C472
    2113743E20
    CAP, 0.1uF
    C473 2113743N54 CAP, 150pF
    C474
    2113743N54
    CAP, 150pF
    C475 2113743L48 CAP, .022uF
    C476
    2113743L48
    CAP, .022uF
    C477 2113743M24 CAP, 0.1uF
    C478
    2113743N54
    CAP, 150pF
    C479 2113743N54 CAP, 150pF
    C480
    2113743E20
    CAP, 0.1uF
    C481 Not_Placed CAP, .01uF
    C482
    Not_Placed
    CAP, .01uF
    C483 2113928H02 CAP, 0.22uF
    C484
    Not_Placed
    CAP, .033uF
    C488 2113743L09 CAP, 470pF
    C489
    2113743L09
    CAP, 470pF
    C490 2113743L09 CAP, 470pF
    C492
    2113928J08
    CAP, 10uF
    C493 2113743L17 CAP, 1000pF
    C494
    2113743F18
    CAP, 2.2uF
    C495 2113743F16 CAP, 1uF
    C496
    2113743F16
    CAP, 1uF
    C497 2113743E20 CAP, 0.1uF
    C498
    2113743F16
    CAP, 1uF
    C499 2113743N40 CAP, 39pF
    C500
    2113743L17
    CAP, 1000pF
    C501 2113743F16 CAP, 1uF
    C503
    2113743L17
    CAP, 1000pF
    C504 2113743L17 CAP, 1000pF
    C505
    2113743L17
    CAP, 1000pF
    C506 2113743L17 CAP, 1000pF
    C507
    2113743L17
    CAP, 1000pF
    C511 2113740F59 CAP, 220pF
    C512
    2113743N22
    CAP, 6.8pF
    C513 2113740F59 CAP, 220pF
    C514
    2113743N31
    CAP, 16pF
    C518 2113743E20 CAP, 0.1uF
    C519
    2113743F16
    CAP, 1uF
    C521 2109445U13 CAP, 2.7pF
    C522
    2113743N01
    CAP, 0.5pF
    C523 2186463Z03 CAP, 0.5pF
    C524
    2186463Z03
    CAP, 0.5pF
    C525 2113743L07 CAP, 390pF
    CR1
    4813825A19
    MMBD352
    CR41 4802246J04 HSMS2829
    CR51
    4813825A19
    MMBD352
    D51 4802245J97 DAN235ETL
    D52
    4802245J97
    DAN235ETL
    D120 4880973Z02 MA4PH261
    D121
    4880973Z02
    MA4PH261
    Circuit 
    RefMotorola 
    Part No.Description
    D201 4862824C03 1SV232D220
    4802233J09
    IMN10
    D221 4802233J09 IMN10
    D251
    4862824C01
    1SV229
    D261 4862824C01 1SV229
    D262
    4862824C01
    1SV229
    D301 4813833A19 MBRM120ET3
    D414
    4805129M41
    MMBD501
    D424 4809924D18 RB520S-30
    D440
    4805729G49
    BRPY1204W
    D470 4809924D18 RB520S-30
    D471
    4809924D18
    RB520S-30
    D491 Not_Placed MMBD501
    E451
    2480640Z01
    BK1005HM471
    E452 2480640Z01 BK1005HM471
    E453
    2480640Z01
    BK1005HM471
    E500 2480640Z01 BK1005HM471
    F301
    6580542Z01
    FUSE
    FL51 9180022M11 MXF45
    FL52
    9180468V04
    FLTR
    FL53 9180469V05 CFWC455E
    FL54
    9180469V03
    CFWC455G
    J140 0986428Z01 CONN_J
    J301
    0986565Z01
    CONN_J
    J460 0986615Z01 CONN_J
    J470
    0985818A01
    CONN_J
    J471 0980683Z03 CONN_J
    J491
    2809926G01
    CONN_P
    L1 2409348J15 IDCTR, 9.85nH
    L2
    2409348J15
    IDCTR, 9.85nH
    L3 2409348J15 IDCTR, 9.85nH
    L21
    2413926N18
    IDCTR, 33nH
    L31 2409348J15 IDCTR, 9.85nH
    L32
    2409348J15
    IDCTR, 9.85nH
    L33 2409348J15 IDCTR, 9.85nH
    L34
    2409348J15
    IDCTR, 9.85nH
    L40 2413926K16 IDCTR, 27nH
    L41
    2413926K16
    IDCTR, 27nH
    L51 2413926N26 IDCTR, 150nH
    L52
    2462587V43
    IDCTR, 560nH
    L53 2113743N52 CAP, 120pF
    L54
    2413923A25
    IDCTR, 1.2uH
    L55 2413926N16 IDCTR, 22nH
    L81
    2413923A19
    IDCTR, 1uH
    L100 2413926K27 IDCTR, 220nH
    L101
    2413926K27
    IDCTR, 220nH
    L102 2409377M25 IDCTR, 7.5nH
    L103
    2409377M24
    IDCTR, 5.1nH
    L110 2413926K27 IDCTR, 220nH
    L120
    2413926K27
    IDCTR, 220nH
    L121 2462587V24 IDCTR, 15nH
    Circuit 
    RefMotorola 
    Par t No.Description
    L130
    2460591C36
    IDCTR, 20.45nH
    L131 2460591C40 IDCTR, 17.02nH
    L132
    2460591C40
    IDCTR, 17.02nH
    L140 2460591L14 IDCTR, 15.92nH
    L141
    2479990M01
    IDCTR, 30.54nH
    L211 2413926K30 IDCTR, 390nH
    L251
    2413926N28
    IDCTR, 220nH
    L252 2413926N17 IDCTR, 27nH
    L254
    2484562T11
    IDCTR, 12.5nH
    L255 2413926N28 IDCTR, 220nH
    L262
    2413926N17
    IDCTR, 27nH
    L264 2484562T13 IDCTR, 8nH
    L265
    2413926N28
    IDCTR, 220nH
    L270 2413926N28 IDCTR, 220nH
    L271
    Not_Placed
    IDCTR, 220nH
    L272 2413926N28 IDCTR, 220nH
    L276
    2413926N17
    IDCTR, 27nH
    L281 2413926N15 IDCTR, 18nH
    L282
    2413926N15
    IDCTR, 18nH
    L283 Not_Placed IDCTR, 22nH
    L291
    2413926N10
    IDCTR, 6.8nH
    L292 2413926N14 IDCTR, 15nH
    L471
    2413926K30
    IDCTR, 390nH
    M140 0286427Z01 ANTENNA_NUT
    Q21
    4802247J01
    BFS505
    Q22 4805723X02 UMT1
    Q51
    4802197J95
    PBR941
    Q70 4880214G02 MMBT3904
    Q100
    4885593U03
    BFG540W
    Q150 4880214G02 MMBT3904
    Q170
    4809939C34
    EMB10
    Q171 4880048M01 DTC144EKA
    Q280
    4802245J95
    BFS540
    Q311 4809579E18 TP0101T
    Q312
    4809579E18
    TP0101T
    Q313 4802245J54 UMG5
    Q402
    4880048M01
    DTC144EKA
    Q403 4813824A17 MMBT3906
    Q410
    4802245J54
    UMG5
    Q440 5180159R01 IMX1
    Q470
    4805723X02
    UMT1
    Q471 4802245J54 UMG5
    Q472
    4805723X02
    UMT1
    Q481 Not_Placed MMBT3906
    Q482
    Not_Placed
    MMBT3904
    Q490 4802245J54 UMG5
    Q493
    4809579E18
    TP0101T
    Q494 4802245J54 UMG5
    Q520
    5180159R01
    IMX1
    R20 0662057M92 RES, 5.6K
    R21
    0662057M49
    RES, 91
    Circuit 
    RefMotorola 
    Part No.Description 
    						
    							UHF 465-495 MHz (8486634Z02-O) Schematic Diagrams, Overlays, and Parts Lists12-576881096C25-BJune, 2005R22 0662057M92 RES, 5.6KR23
    0662057N09
    RES, 27K
    R24 0662057M76 RES, 1.2K
    R25
    0662057M92
    RES, 5.6K
    R40 0662057M74 RES, 1K
    R51
    0662057M43
    RES, 51
    R52 0662057N01 RES, 12K
    R53
    0662057N11
    RES, 33K
    R54 0662057M91 RES, 5.1K
    R55
    0662057M62
    RES, 330
    R57 0662057M90 RES, 4.7K
    R60
    0662057M83
    RES, 2.4K
    R61 0662057N23 RES, 100K
    R62
    0662057M86
    RES, 3.3K
    R63 0662057N13 RES, 39K
    R64
    0662057N06
    RES, 20K
    R65 0662057N13 RES, 39K
    R66
    0662057N06
    RES, 20K
    R67 0662057N06 RES, 20K
    R72
    0662057M64
    RES, 390
    R73 0662057M80 RES, 1.8K
    R74
    0662057M76
    RES, 1.2K
    R75 0662057N01 RES, 12K
    R76
    0662057V04
    RES, 12K
    R77 0662057U99 RES, 8.2K
    R78
    0662057M70
    RES, 680
    R80 0662057M91 RES, 5.1K
    R81
    0662057M74
    RES, 1K
    R82 Not_Placed RES, 0
    R90
    0662057M43
    RES, 51
    R91 0662057M79 RES, 1.6K
    R100
    0662057M72
    RES, 820
    R101 0662057M20 RES, 5.6
    R102
    0662057M72
    RES, 820
    R103 0662057M85 RES, 3K
    R104
    0662057A07
    RES, 18
    R105 0662057M84 RES, 2.7K
    R106
    0662057M90
    RES, 4.7K
    R107 Not_Placed RES, 300
    R110
    0662057M70
    RES, 680
    R111 0662057M81 RES, 2K
    R120
    0662057C55
    RES, 150
    R121 0662057C55 RES, 150
    R150
    0680539Z01
    RES, 0.1
    R151 0662057A15 RES, 39
    R152
    0662057V27
    RES, 100K
    R153 0662057V27 RES, 100K
    R154
    0662057V27
    RES, 100K
    R155 0662057V27 RES, 100K
    R156
    0662057M62
    RES, 330
    R157 0662057M82 RES, 2.2K
    Circuit 
    RefMotorola 
    Par t No.Description
    R158
    0662057M78
    RES, 1.5K
    R162 0662057M98 RES, 10K
    R202
    0662057N27
    RES, 150K
    R205 0662057M50 RES, 100
    R206
    Not_Placed
    RES, 100
    R212 0662057C01 RES, 0
    R220
    0662057M34
    RES, 22
    R221 0662057M34 RES, 22
    R223
    0662057M50
    RES, 100
    R227 0662057N13 RES, 39K
    R230
    0662057N06
    RES, 20K
    R243 0662057M72 RES, 820
    R244
    0662057M43
    RES, 51
    R245 0662057M78 RES, 1.5K
    R246
    0662057N23
    RES, 100K
    R247 0662057N14 RES, 43K
    R253
    0662057M42
    RES, 47
    R254 0662057M50 RES, 100
    R255
    0662057U91
    RES, 3.9K
    R261 0662057N07 RES, 22K
    R262
    0662057M95
    RES, 7.5K
    R263 0662057M38 RES, 33
    R264
    0662057M50
    RES, 100
    R271 0662057M91 RES, 5.1K
    R272
    0662057M93
    RES, 6.2K
    R273 0662057M62 RES, 330
    R274
    0662057M38
    RES, 33
    R275 0662057M50 RES, 100
    R276
    Not_Placed
    RES, 1K
    R277 0662057B47 RES, 0
    R280
    0662057M90
    RES, 4.7K
    R281 0662057M96 RES, 8.2K
    R282
    0662057M73
    RES, 910
    R283 0662057M53 RES, 130
    R284
    0662057M70
    RES, 680
    R285 0662057M01 RES, 0
    R310
    0662057N23
    RES, 100K
    R311 0662057N23 RES, 100K
    R312
    0662057N06
    RES, 20K
    R313 0662057M98 RES, 10K
    R320
    0662057V43
    RES, 330K
    R321 0662057V35 RES, 200K
    R322
    0662057N23
    RES, 100K
    R400 Not_Placed RES, 100K
    R410
    0662057M98
    RES, 10K
    R411 0662057M72 RES, 820
    R412
    0662057N23
    RES, 100K
    R413 0662057N23 RES, 100K
    R414
    0662057N11
    RES, 33K
    R415 0662057N11 RES, 33K
    R416
    0662057N06
    RES, 20K
    Circuit 
    RefMotorola 
    Part No.Description
    R417 0662057M98 RES, 10KR418
    0662057N23
    RES, 100K
    R419 0662057M90 RES, 4.7K
    R420
    0662057V35
    RES, 200K
    R421 0662057V27 RES, 100K
    R422
    0662057N23
    RES, 100K
    R423 0662057N23 RES, 100K
    R424
    0662057V35
    RES, 200K
    R425 0662057V27 RES, 100K
    R430
    0662057N23
    RES, 100K
    R431 Not_Placed RES, 100K
    R432
    0662057M01
    RES, 0
    R433 0662057N23 RES, 100K
    R434
    Not_Placed
    RES, 100K
    R440 0662057M90 RES, 4.7K
    R441
    0662057M90
    RES, 4.7K
    R442 0662057A33 RES, 220
    R443
    0662057A27
    RES, 120
    R445 0662057M90 RES, 4.7K
    R446
    0662057M98
    RES, 10K
    R451 0662057N15 RES, 47K
    R460
    0662057N08
    RES, 24K
    R462 0662057N08 RES, 24K
    R463
    0662057N08
    RES, 24K
    R464 0662057N10 RES, 30K
    R469
    0662057M26
    RES, 10
    R470 0662057M82 RES, 2.2K
    R471
    0662057M82
    RES, 2.2K
    R472 0662057M70 RES, 680
    R473
    0662057M70
    RES, 680
    R474 0662057A37 RES, 330
    R475
    0662057N29
    RES, 180K
    R476 0662057N23 RES, 100K
    R477
    0662057M82
    RES, 2.2K
    R478 0662057M82 RES, 2.2K
    R479
    0662057N23
    RES, 100K
    R480 0662057B47 RES, 0
    R481
    Not_Placed
    RES, 100K
    R482 Not_Placed RES, 330K
    R483
    Not_Placed
    RES, 150K
    R484 Not_Placed RES, 2.2K
    R485
    Not_Placed
    RES, 100K
    R486 Not_Placed RES, 100K
    R487
    0662057M01
    RES, 0
    R488 0662057N35 RES, 330K
    R489
    Not_Placed
    RES, 91K
    R490 Not_Placed RES, 2.2K
    R491
    0662057M01
    RES, 0
    R492 0662057N08 RES, 24K
    R493
    0662057N35
    RES, 330K
    R494 0662057V43 RES, 330K
    Circuit 
    RefMotorola 
    Par t No.Description
    R495
    0662057M92
    RES, 5.6K
    R496 Not_Placed RES, 10K
    R497
    Not_Placed
    RES, 1MEG
    R498 Not_Placed RES, 47K
    R499
    Not_Placed
    RES, 270K
    R501 0662057M50 RES, 100
    R502
    0662057M50
    RES, 100
    R503 0662057M50 RES, 100
    R504
    0662057M50
    RES, 100
    R505 0662057M50 RES, 100
    R506
    0662057M50
    RES, 100
    R507 0662057M50 RES, 100
    R508
    0662057N23
    RES, 100K
    R509 0662057N23 RES, 100K
    R510
    0662057N35
    RES, 330K
    R511 0662057N23 RES, 100K
    R512
    0662057N27
    RES, 150K
    R513 0662057N23 RES, 100K
    R514
    0662057N23
    RES, 100K
    R515 0662057M01 RES, 0
    R516
    Not_Placed
    RES, 0
    R517 Not_Placed RES, 0
    R518
    0662057N31
    RES, 220K
    R519 0662057N23 RES, 100K
    R520
    0662057N23
    RES, 100K
    R521 Not_Placed RES, 100K
    R522
    0662057N23
    RES, 100K
    R523 0662057M98 RES, 10K
    S440
    4080710Z14
    4080710Z15
    SWITCH, Rotary, 16-Ch. 
    Select
    SWITCH, Rotary, 32/64 Ch. 
    Select
    S441 4070354A01 SWITCH
    S442
    4070354A01
    SWITCH
    S443 4070354A01 SWITCH
    S444
    1880619Z02
    SWITCH
    SH1 2686421Z01 SHIELD
    SH40
    2686419Z01
    SHIELD
    SH50 2686423Z01 SHIELD
    SH52
    2686424Z01
    SHIELD
    SH100 2686418Z01 SHIELD
    SH200
    2686424Z01
    SHIELD
    SH201 2686423Z01 SHIELD
    SH250
    2686425Z01
    SHIELD
    SH251 2686425Z01 SHIELD
    SH253
    2686422Z01
    SHIELD
    SH400 2686420Z02 SHIELD
    SH401
    2686420Z01
    SHIELD
    T41 2580541Z02 XFMR
    T42
    2580541Z02
    XFMR
    U51 5186144B01 SA616
    Circuit 
    RefMotorola 
    Part No.Description 
    						
    							12-58UHF 465-495 MHz (8486634Z02-O) Schematic Diagrams, Overlays, and Parts ListsJune, 20056881096C25-B
    * Motorola Depot Servicing only
    UHF (465-495 MHz) Keypad  Board Parts List
     
    (8466565A03-B)U52
    5109522E10
    TC7W04F
    U110 0186438Z02 RA07M4452M_UHF
    U150
    5113818A01
    LM2904
    U151 2484657R01 57R01
    U201*
    5185963A27
    63A27
    U251 5105750U54 50U54
    U310
    5102478J01
    TK71750S
    U320 5185963A55 LP2986
    U330
    5102479J01
    TK71730S
    U401* 5102226J56 MC68HC11FL0
    U402*
    5102463J64
    X25128-2.7
    U403 Not_Placed SRM2B256
    U404*
    5102480J01
    AT49LV001N_70VI
    U451 5185130C53 30C53
    U480
    Not_Placed
    LM2904
    U490 5108858K99 TDA8541
    U510
    5113818A01
    LM2904
    U511 4802245J54 UMG5
    VR110
    4813830A86
    MM3Z3V9T1
    VR301 4813830A33 MMBZ5250B
    VR302
    4813830A33
    MMBZ5250B
    VR471 4813830A18 MMBZ5235B
    VR472
    4813830A09
    MMBZ5226B
    VR473 4813830A33 MMBZ5250B
    VR474
    4813830A33
    MMBZ5250B
    VR475 4880140L20 MMBZ5245B
    Y51
    4802245J84
    TSS2_44_395MHZ
    Y70 9186145B02 45B02
    Y201*
    4880114R06
    14R06
    Y202 Not_Placed 45J68
    Circuit 
    RefMotorola 
    Par t No.DescriptionC1
    NOTPLACED
    CAP, 150pF
    C2 2113740F55 CAP, 150pF
    C3
    NOTPLACED
    CAP, 150pF
    C4 2113743E20 CAP, 0.1uF
    C5
    NOTPLACED
    CAP, 150pF
    C6 NOTPLACED CAP, 150pF
    C7
    NOTPLACED
    CAP, 150pF
    C8 NOTPLACED CAP, 150pF
    C21
    2113743N50
    CAP, 100pF
    C22 2113743N50 CAP, 100pF
    C23
    2113743N50
    CAP, 100pF
    C24 2113743N50 CAP, 100pF
    C25
    2113743N50
    CAP, 100pF
    Circuit 
    RefMotorola 
    Par t No.Description
    C26 2113743N50 CAP, 100pFC27
    2113743N50
    CAP, 100pF
    C28 2113743N50 CAP, 100pF
    C29
    2113743N50
    CAP, 100pF
    C30 2113743N50 CAP, 100pF
    C31
    2113743N50
    CAP, 100pF
    C32 2113743N50 CAP, 100pF
    D1
    4809496B11
    QSMG-H799
    D2 4809496B11 QSMG-H799
    D3
    4809496B11
    QSMG-H799
    D4 4809496B11 QSMG-H799
    D5
    4809496B11
    QSMG-H799
    D6 4809496B11 QSMG-H799
    D7
    4809496B11
    QSMG-H799
    D8 4809496B11 QSMG-H799
    D10
    4809496B11
    QSMG-H799
    J1 0986632Z01 CONN_J
    J2
    0909059E18
    CONN_J
    R1 0662057A97 RES, 100K
    Q1
    4802245J54
    UMG5
    Q2 4802245J54 UMG5
    Q3
    4802245J54
    UMG5
    Q4 4802245J54 UMG5
    Q5
    4802245J54
    UMG5
    Q6 4802245J54 UMG5
    Q7
    4802245J54
    UMG5
    Q8 4802245J54 UMG5
    Q9
    4802245J54
    UMG5
    Q10 4802245J54 UMG5
    Q11
    4802245J54
    UMG5
    Q12 4802245J54 UMG5
    R1
    0662057A97
    RES, 100k
    R2 0662057A76 RES, 13K
    R3
    0662057A81
    RES, 22K
    R4 0662057A88 RES, 43K
    R5
    0662057B01
    RES, 130K
    R6 0662057A97 RES, 100K
    R7
    0662057A76
    RES, 13K
    R8 0662057A81 RES, 22K
    R9
    0662057A88
    RES, 43K
    R10 0662057B01 RES, 130K
    R11
    0662057A41
    RES, 470
    R12 0662057A41 RES, 470
    R13
    0662057A37
    RES, 330
    R14 0662057A37 RES, 330
    R15
    0662057A37
    RES, 330
    R20 0662057A41 RES, 470
    Circuit 
    RefMotorola 
    Part No.Description 
    						
    							INDEX
    A
    Antenna Matching Network, UHF 403-440 MHz Theory Of Operation ...............................8-4
    Antenna Matching Network, UHF 438-470 MHz Theory Of Operation ...............................9-4
    Antenna Matching Network, UHF 465-495 MHz Theory Of Operation .............................10-4
    Antenna Matching Network, VHF 136-162 MHz Theory Of Operation................................4-4
    Antenna Matching Network, VHF 146-174 MHz Theory Of Operation................................5-4
    Antenna Switch, UHF 403-440 MHz Theory Of Operation..................................................8-3
    Antenna Switch, UHF 438-470 MHz Theory Of Operation..................................................9-3
    Antenna Switch, UHF 465-495 MHz Theory Of Operation................................................10-3
    Antenna Switch, VHF 136-162 MHz Theory Of Operation ..................................................4-3
    Antenna Switch, VHF 146-174 MHz Theory Of Operation ..................................................5-3
    Audio Circuitry Theory of Operation ....................................................................................3-4
    Audio Power Amplifier Theory of Operation ........................................................................3-5
    B
    Battery Charging Through Microphone Jack Controller Theory of Operation .....................3-6
    Battery Gauge Controller Theory of Operation....................................................................3-4
    Boot Mode Control Controller Theory of Operation .............................................................3-4
    C
    Computer Software Copyrights .............................................................................................. ii
    Control and Indicator Interface Controller Theory of Operation ..........................................3-2
    Controller Theory of Operation ............................................................................................3-1
    Controller .......................................................................................................................3-1
     Microprocessor Circuitry ..........................................................................................3-1
    Memory Usage ..................................................................................................3-2
    Control and Indicator Interface ..........................................................................3-2
    Serial Bus Control of Circuit Blocks  ..................................................................3-2
    Interface to RSS Programming .........................................................................3-3
    Storage of Customer-Specific Information .........................................................3-3
    Sensing of Externally-Connected Accessories ..................................................3-3
    Microprocessor Power-Up, Power-Down and Reset Routine............................3-3
    Boot Mode Control.............................................................................................3-4
    Microprocessor 7.3975 MHz Clock....................................................................3-4
    Battery Gauge ...................................................................................................3-4
    Audio Circuitry ...............................................................................................................3-4
    Transmit and Receive Low-Level Audio Circuitry ..............................................3-4
    Audio Power Amplifier .......................................................................................3-5
    Internal Microphone Audio Voice Path ..............................................................3-5
    PTT Circuits .......................................................................................................3-6
    VOX Operation ..................................................................................................3-6
    Battery Charging Through Microphone Jack .....................................................3-6
    Programming and Flashing Through Microphone Jack .....................................3-6 
    						
    							June, 20056881096C25-B
    2INDEX: 
    D
    DC Power Distribution Theory of Operation ........................................................................ 2-1
    DC Regulation and Distribution Theory of Operation .......................................................... 2-1
    Disclaimer .............................................................................................................................. ii
    Document Copyrights.............................................................................................................ii
    E
    F
    Foreword ................................................................................................................................ ii
    Fractional-N Synthesizer, UHF 403-440 MHz Theory Of Operation ................................... 8-5
    Fractional-N Synthesizer, UHF 438-470 MHz Theory Of Operation ................................... 9-5
    Fractional-N Synthesizer, UHF 465-495 MHz Theory Of Operation ................................. 10-5
    Fractional-N Synthesizer, VHF 136-162 MHz Theory Of Operation ................................... 4-5
    Fractional-N Synthesizer, VHF 146-174 MHz Theory Of Operation ................................... 5-5
    Frequency Generation Circuitry, UHF 403-440 MHz Theory Of Operation......................... 8-4
    Frequency Generation Circuitry, UHF 438-470 MHz Theory Of Operation......................... 9-4
    Frequency Generation Circuitry, UHF 465-495 MHz Theory Of Operation....................... 10-4
    Frequency Generation Circuitry, VHF 136-162 MHz Theory Of Operation ......................... 4-4
    Frequency Generation Circuitry, VHF 146-174 MHz Theory Of Operation ......................... 5-4
    G
    H
    Harmonic Filter, UHF 403-440 MHz Theory Of Operation .................................................. 8-3
    Harmonic Filter, UHF 438-470 MHz Theory Of Operation .................................................. 9-3
    Harmonic Filter, UHF 465-495 MHz Theory Of Operation ................................................ 10-3
    Harmonic Filter, VHF 136-162 MHz Theory Of Operation .................................................. 4-3
    Harmonic Filter, VHF 146-174 MHz Theory Of Operation .................................................. 5-3
    I
    Interface to RSS Programming Controller Theory of Operation.......................................... 3-3
    Internal Microphone Audio Voice Path Theory of Operation ............................................... 3-5
    Introduction, UHF 403-440 MHz Theory Of Operation........................................................ 8-1
    Introduction, UHF 438-470 MHz Theory Of Operation........................................................ 9-1
    Introduction, UHF 465-495 MHz Theory Of Operation...................................................... 10-1
    Introduction, UHF Schematic Diagrams, Overlays, and Parts Lists .................................. 12-1
    Introduction, VHF Schematic Diagrams, Overlays, and Parts Lists .................................... 7-1
    Introduction, VHF 136-162 MHz Theory Of Operation ........................................................ 4-1
    Introduction, VHF 146-174 MHz Theory Of Operation ........................................................ 5-1
    J
    K
    Keypad, UHF 403-440 MHz Theory Of Operation .............................................................. 8-7
    Keypad, UHF 438-470 MHz Theory Of Operation .............................................................. 9-7
    Keypad, UHF 465-495 MHz Theory Of Operation ............................................................ 10-7
    Keypad, VHF 136-162 MHz Theory Of Operation .............................................................. 4-7 
    						
    							6881096C25-BJune, 2005
    INDEX: 3
    Keypad, VHF 146-174 MHz Theory Of Operation...............................................................5-7
    L
    List of Figures ........................................................................................................................ ix
    List of Tables ........................................................................................................................ xii
    M
    Memory Usage Controller Theory of Operation ..................................................................3-2
    Microprocessor 7.3975 MHz Clock Controller Theory of Operation ....................................3-4
    Microprocessor Circuitry Controller Theory of Operation ....................................................3-1
    Microprocessor Power-Up, Power-Down and Reset Routine Controller 
    Theory of Operation........................................................................................................3-3
    N
    Notes For All Schematics and Circuit Boards, UHF ..........................................................12-1
    Notes For All Schematics and Circuit Boards, VHF ............................................................7-1
    O
    P
    Power Control, UHF 403-440 MHz Theory Of Operation ....................................................8-4
    Power Control, UHF 438-470 MHz Theory Of Operation l ..................................................9-4
    Power Control, UHF 465-495 MHz Theory Of Operation ..................................................10-4
    Power Control, VHF 136-162 MHz Theory Of Operation ....................................................4-4
    Power Control, VHF 146-174 MHz Theory Of Operation ....................................................5-4
    Product Safety and RE Exposure Compliance....................................................................... ii
    Programming and Flashing Through Microphone Jack Controller Theory of Operation .....3-6
    PTT Circuits Controller Theory of Operation .......................................................................3-6
    Q
    R
    Receiver Back End, UHF 403-440 MHz Theory Of Operation ............................................8-2
    Receiver Back End, UHF 438-470 MHz Theory Of Operation ............................................9-2
    Receiver Back End, UHF 465-495 MHz Theory Of Operation ..........................................10-2
    Receiver Back-End, VHF 136-162 MHz Theory Of Operation ............................................4-2
    Receiver Back-End, VHF 146-174 MHz Theory Of Operation ............................................5-2
    Receiver Front End, UHF 403-440 MHz Theory Of Operation............................................8-1
    Receiver Front End, UHF 438-470 MHz Theory Of Operation............................................9-1
    Receiver Front End, UHF 465-495 MHz Theory Of Operation..........................................10-1
    Receiver Front-End, VHF 136-162 MHz Theory Of Operation............................................4-1
    Receiver Front-End, VHF 146-174 MHz Theory Of Operation............................................5-1
    Receiver, UHF 403-440 MHz Theory Of Operation.............................................................8-1
    Receiver, UHF 438-470 MHz Theory Of Operation.............................................................9-1
    Receiver, UHF 465-495 MHz Theory Of Operation...........................................................10-1
    Receiver, VHF 136-162 MHz Theory Of Operation .............................................................4-1
    Receiver, VHF 146-174 MHz Theory Of Operation .............................................................5-1
    Related Publications............................................................................................................. xii 
    						
    							June, 20056881096C25-B
    4INDEX: 
    S
    Sensing of Externally-Connected Accessories Controller Theory of Operation .................. 3-3
    Serial Bus Control of Circuit Controller Blocks Theory of Operation ................................... 3-2
    Service Aids ........................................................................................................................ 1-2
    Six Layer Circuit Board, UHF ............................................................................................ 12-3
    Six Layer Circuit Board, VHF .............................................................................................. 7-3
    Speaker and Microphone Parts List, UHF ......................................................................... 12-3
    Speaker and Microphone Parts List, VHF ........................................................................... 7-3
    Speaker and Microphone Schematic, UHF ....................................................................... 12-3
    Speaker and Microphone Schematic, VHF ......................................................................... 7-3
    Storage of Customer-Specific Information Controller Theory of Operation ......................... 3-3
    T
    Test Equipment, Service Aids, and Service Tools ............................................................... 1-1
    Test Equipment ................................................................................................................... 1-1
    Service Aids .................................................................................................................. 1-2
    Transmit and Receive Low-Level Audio Circuitry Theory of Operation .............................. 3-4
    Transmitter Power Amplifier, UHF 403-440 MHz Theory Of Operation .............................. 8-3
    Transmitter Power Amplifier, UHF 438-470 MHz Theory Of Operation .............................. 9-3
    Transmitter Power Amplifier, UHF 465-495 MHz Theory Of Operation ............................ 10-3
    Transmit Power Amplifier, VHF 136-162 MHz Theory Of Operation ................................... 4-3
    Transmit Power Amplifier, VHF 146-174 MHz Theory Of Operation ................................... 5-3
    Transmitter, UHF 403-440 MHz Theory Of Operation ........................................................ 8-3
    Transmitter, UHF 438-470 MHz Theory Of Operation ........................................................ 9-3
    Transmitter, UHF 465-495 MHz Theory Of Operation ...................................................... 10-3
    Transmitter, VHF 136-162 MHz Theory Of Operation......................................................... 4-3
    Transmitter, VHF 146-174 MHz Theory Of Operation......................................................... 5-3
    Troubleshooting Tables, UHF............................................................................................ 11-1
    Troubleshooting Table for Board and IC Signals, UHF ..................................................... 11-6
    Troubleshooting Table for Board and IC Signals, VHF ....................................................... 6-6
    Troubleshooting Table for Receiver, UHF ......................................................................... 11-1
    Troubleshooting Table for Receiver, VHF ........................................................................... 6-1
    Troubleshooting Table for Synthesize, UHF...................................................................... 11-3
    Troubleshooting Table for Synthesize, VHF ........................................................................ 6-3
    Troubleshooting Table for Transmitter, UHF ..................................................................... 11-4
    Troubleshooting Table for Transmitter, VHF........................................................................ 6-4
    U
    UHF Schematic Diagrams, Overlays, and Parts Lists ...................................................... 12-1
    Introduction ................................................................................................................. 12-1
    Notes For All Schematics and Circuit Boards ....................................................... 12-1
    Six Layer Circuit Board.......................................................................................... 12-3
    Speaker and Microphone Schematic .......................................................................... 12-3
    Speaker and Microphone Parts List ...................................................................... 12-3
    UHF 403-440 MHz Theory Of Operation ............................................................................ 8-1
    Introduction ...................................................................................................................8-1
    UHF Receiver................................................................................................................ 8-1
    Receiver Front End ........................................................................................... 8-1
    Receiver Back End ............................................................................................ 8-2
    UHF Transmitter ............................................................................................................ 8-3 
    						
    							6881096C25-BJune, 2005
    INDEX: 5
    Transmitter Power Amplifier ..............................................................................8-3
    Antenna Switch..................................................................................................8-3
    Harmonic Filter ..................................................................................................8-3
    Antenna Matching Network.....................................................................................8-4
    Power Control ..........................................................................................................8-4
    UHF Frequency Generation Circuitry ............................................................................8-4
    Fractional-N Synthesizer .........................................................................................8-5
    Voltage Controlled Oscillator (VCO) ........................................................................8-6
    Keypad ..........................................................................................................................8-7
    UHF 438-470 MHz Theory Of Operation.............................................................................9-1
    Introduction....................................................................................................................9-1
    UHF Receiver ................................................................................................................9-1
    Receiver Front End..................................................................................................9-1
    Receiver Back End ..................................................................................................9-2
    UHF Transmitter ............................................................................................................9-3
    Transmitter Power Amplifier ....................................................................................9-3
    Antenna Switch........................................................................................................9-3
    Harmonic Filter ........................................................................................................9-3
    Antenna Matching Network .....................................................................................9-4
    Power Control ..........................................................................................................9-4
    UHF Frequency Generation Circuitry ............................................................................9-4
    Fractional-N Synthesizer .........................................................................................9-5
    Voltage Controlled Oscillator (VCO) ........................................................................9-6
    Keypad ..........................................................................................................................9-7
    UHF 465-495 MHz Theory Of Operation...........................................................................10-1
    Introduction..................................................................................................................10-1
    UHF Receiver ..............................................................................................................10-1
    Receiver Front End................................................................................................10-1
    Receiver Back End ................................................................................................10-2
    UHF Transmitter ..........................................................................................................10-3
    Transmitter Power Amplifier ..................................................................................10-3
    Antenna Switch......................................................................................................10-3
    Harmonic Filter ......................................................................................................10-3
    Antenna Matching Network ...................................................................................10-4
    Power Control ........................................................................................................10-4
    UHF Frequency Generation Circuitry ..........................................................................10-4
    Fractional-N Synthesizer .......................................................................................10-5
    Voltage Controlled Oscillator (VCO) ......................................................................10-6
    Keypad ........................................................................................................................10-7
    UHF Troubleshooting Tables ............................................................................................. 11-1
    Troubleshooting Table for Receiver ............................................................................. 11-1
    Troubleshooting Table for Synthesizer ........................................................................ 11-3
    Troubleshooting Table for Transmitter ......................................................................... 11-4
    Troubleshooting Table for Board and IC Signals ......................................................... 11-6
    V
    VHF Schematic Diagrams, Overlays, and Parts Lists  ........................................................7-1
    Introduction....................................................................................................................7-1 
    						
    							June, 20056881096C25-B
    6INDEX: 
    Notes For All Schematics and Circuit Boards ......................................................... 7-1
    Six Layer Circuit Board............................................................................................ 7-3
    Speaker and Microphone Schematic ............................................................................ 7-3
    Speaker and Microphone Parts List ........................................................................ 7-3
    VHF 136-162 MHz Theory Of Operation............................................................................. 4-1
    Introduction ...................................................................................................................4-1
    VHF Receiver ................................................................................................................ 4-1
    Receiver Front-End ................................................................................................. 4-1
    Receiver Back-End.................................................................................................. 4-2
    VHF Transmitter ............................................................................................................ 4-3
    Transmit Power Amplifier ........................................................................................ 4-3
    Antenna Switch ....................................................................................................... 4-3
    Harmonic Filter ........................................................................................................ 4-3
    Antenna Matching Network ..................................................................................... 4-4
    Power Control.......................................................................................................... 4-4
    VHF Frequency Generation Circuitry ............................................................................ 4-4
    Fractional-N Synthesizer ......................................................................................... 4-5
    Voltage Controlled Oscillator (VCO) ........................................................................ 4-6
    Keypad ..........................................................................................................................4-7
    VHF 146-174 MHz Theory Of Operation............................................................................. 5-1
    Introduction ...................................................................................................................5-1
    VHF Receiver ................................................................................................................ 5-1
    Receiver Front-End ................................................................................................. 5-1
    Receiver Back-End.................................................................................................. 5-2
    VHF Transmitter ............................................................................................................ 5-3
    Transmit Power Amplifier ........................................................................................ 5-3
    Antenna Switch ....................................................................................................... 5-3
    Harmonic Filter ........................................................................................................ 5-3
    Antenna Matching Network ..................................................................................... 5-4
    Power Control.......................................................................................................... 5-4
    VHF Frequency Generation Circuitry ............................................................................ 5-4
    Fractional-N Synthesizer ......................................................................................... 5-5
    Voltage Controlled Oscillator (VCO) ........................................................................ 5-6
    Keypad ..........................................................................................................................5-7
    VHF Troubleshooting Tables ............................................................................................... 6-1
    Troubleshooting Table for Receiver............................................................................... 6-1
    Troubleshooting Table for Synthesizer .......................................................................... 6-3
    Troubleshooting Table for Transmitter ........................................................................... 6-4
    Troubleshooting Table for Board and IC Signals ........................................................... 6-6
    Voltage Controlled Oscillator (VCO), UHF 403-440 MHz Theory Of Operation .................. 8-6
    Voltage Controlled Oscillator (VCO), UHF 438-470 MHz Theory Of Operation .................. 9-6
    Voltage Controlled Oscillator (VCO), UHF 465-495 MHz Theory Of Operation ................ 10-6
    Voltage Controlled Oscillator (VCO), VHF 136-162 MHz Theory Of Operation .................. 4-6
    Voltage Controlled Oscillator (VCO), VHF 146-174 MHz Theory Of Operation .................. 5-6
    VOX Operation Controller Theory of Operation .................................................................. 3-6
    W
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