Motorola Cm Radio Uhf2 Information Manual
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Chapter 4 UHF2 PCB/ SCHEMATICS/ PARTS LISTS 1.0 Allocation of Schematics and Circuit Boards 1.1 UHF2 and Controller Circuits The UHF circuits are contained on the printed circuit board (PCB) which also contains the Controller circuits. This Chapter shows the schematics for both the UHF circuits and the Controller circuits. The PCB component layouts and the Parts Lists in this Chapter show both the Controller and UHF circuit components. The UHF and Controller schematics and the related PCB and parts...
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4-2UHF2 PCB/ SCHEMATICS/ PARTS LISTS THIS PAGE INTENTIONALLY LEFT BLANK
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UHF2 1-25W PCB 8488978U01 (rev. D) / Schematics4-32.0 UHF2 1-25W PCB 8488978U01 (rev. D) / Schematics 9V COMP_B+ DET_VFWD FILT_SW_B+ INTEGRATORPA_BIAS PWR_SETRX RX_EN TX_ENTX_INJ SHEET 1 OF 8 73D02968C74-O 9V COMP_B+ DET_VFWD FILT_SW_B+ INTEGRATORPA_BIAS PWR_SET RX RX_EN TX_EN TX_INJ MAIN COMPARTMENT UHF2 Interconnection between Main Board and Power Amplifier Compartment
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4-4UHF2 1-25W PCB 8488978U01 (rev. D) / Schematics C301 C302 C303 C304 C305 C306 C307C308 C309 C310 C311 C312C313 C314 C315 C316C317 C318 C319 C320 C322 C336 C337 C359C360 C361C362 C364 C365 C369 C371 C402 C406C411 C414 C418 C490 C602 C603C604 C605C606 C607 C608 C609C610C611 C612 C613C614 C615 C616 C617 C618C619 C620 C621C622 C623 C624C625 C626 C627 C628C629 C630 C631C632C633 C662 C678 C1001 C1004 C1005 C1006C1007C1008 C1009 C1010 C1011C1012 C1013C1014 C1016 C1020 C1021 C1023 C1026 C1031 C1033 C1034...
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UHF2 1-25W PCB 8488978U01 (rev. D) / Schematics4-5 C300 C321C323 C324 C325 C326C327 C328 C329C330 C331 C332 C333 C334 C335 C338 C339C340 C341 C342C343 C344C345 C346 C347 C348 C349 C350 C351 C353 C354 C355C356 C357 C358C366 C367 C368 C370 C400C401C403 C404 C405 C407 C408 C410C412 C413 C415 C416 C417 C421 C422C423 C1000 C1002 C1027 C1028 C1029C1032 C1035 C1036C1040 C1043 C1045 C1046C1047 C1050C1051C1053 C1054 C1059C1060 C1061 C1062 C1066 C1067 C1070 C1071 C1072 C1073 C1075 C1076 C1077 C1078 C1079 C1080...
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4-6UHF2 1-25W PCB 8488978U01 (rev. D) / Schematics Accessory Connector Control Head Connector NC Place capacitors near J2Place capacitors near J2 Place capacitors near J2 Place capacitors near J2ELP ONLY NC ELP ONLY NCELP ONLY NCELP ONLY Internal spkr+ jumper DNP J3 - DNP DNPDNP DIGITAL Option Board Keypad/DisplayAccessory Connector EXT_ALARM_OUT EXT_MIC_PTT PROG_IN PROG_I/O PROG_I/O PROG_I/O TO DC & AUDIOTO SHEET 2 220 TX AUDIO SEND DETECTOR AUDIO SENDTX AUDIO RETURN UNMUTED RX AUDIO SEND POST-LIMITER...
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UHF2 1-25W PCB 8488978U01 (rev. D) / Schematics4-7 MOD_OUT16.8MHz SPI_CLK SPI_MOSI MIC_AUDIO_CH HANDSET_RX_AUDIO_CH VS_AUDIO_SEL RESET uP_CLK F1200 HSIO LSIO SQ_DET CH_ACT ASFIC_CS EXTERNAL_MIC_AUDIO_ACCESS_CONNB+ 3V BW_SEL D3_3V5V PWR_SET DEMOD SPKR+ SPKR- 5V_CH VS_MIC RX_AUDIO_RETURN_OPT_BRD POST_LIMITER_FLAT_TX_AUDIO_RETURN_OPT_BRD TX_AUDIO_RETURN_OPT_BRD UNMUTED_RX_AUDIO_SEND_OPT_BRDPA_BIAS HOLES FOR PA SHIELD PEDS FOR GND CONTACTS (SOURCE)(SOURCE) DC & AUDIO CONTACTS FOR PA CLIP DC Connector(SOURCE)...
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4-8UHF2 1-25W PCB 8488978U01 (rev. D) / Schematics 120.p100n 120.pDNP DNP PLACED NEAR R122 PLACED NEAR CHIP’s PINDNP TO SHEET 2 FILT_SW_B+ FLT_9V 9V TX_INJCOMP_B+ C1027C1103 C1061 22n1019447L119 PA_FILT_B+ R136 36.K R168 C1053 180.p C1001 4.7 FLT_9V V_CTRL_PREDRIVER 1.0uIF109 R165 2.4K FILT_SW_B+ C1126L122 1.542*4 0.8*25 MRF1513’s Thermal pad (SOURCE) DNP V_CNTRL DNPMRF 1518Place inside of the PA compartment DNPDNP 100n C1028R170R167 510.C1036 2.2K FLT_9V 22n 47.KR181 47.K R131 R180 100.K 2.7K R134...
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UHF2 1-25W PCB 8488978U01 (rev. D) / Schematics4-9 LM2904U102 L117 1019447 Antenna Connector 390.n 7.5width 2.032Coupler PA’s Temp. Sensor DNP DNP TO SHEET 1 SHEET 2 OF 8 73D02968C74-O Current sense protection (option) DNPFILT_SW_B+_PA PA_FILT_B+ PWR_SE T L126 120.p C1035 RT100 C1004 27.p L115 18.n 1 J11-1 120. C1081INTEGRATORDET_VFWDIF110 1 39.pI F 111 110KR150 Q106 5.6VR102 470.R172 D104 D103 C1121 5.6p C1021 9.1p C1007 C1009 120.p S2 S3 S4 22.p Q100 D GGND1 GND2 S1 C1008 8.2p 12.pC1013 1.uL103FLT_9V...
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4-10UHF2 1-25W PCB 8488978U01 (rev. D) / Schematics U200 FRACN_63A27 XTAL224 XTAL123 WARP25 13 VROVMULT411 VMULT312 34 VMULT214 VMULT115VCP47 VBPASS 21 TEST238 TEST137 SFOUT V_SF 5V 5V VCO_MOD 46 ADAPTSW BIAS1 40 AV D D20 AUX43 AUX32 R209 100.K AUX21 AUX148 AGND 22 DVDD36 DGND 6 DATA 7CLK 8D201 CEX 9 CCOMP 42BIAS2 39 17MODOUT41 MODIN 10 4 LOCKIOUT43 INDMULT16 IADAPT 5.1p C206745 FREFOUT19 PRE_GND 33 PREIN 32 5 PD_VDD PD_GND 44 NC3 31NC2 29 DNPDNP DNP DNPDNP DNPDNP TO SHEET 2 NC128 SFIN 30 SFCAP 26 SFBASE...