Motorola IC-T81E, IC-T81A service manual Ceramic ECUE1H120JCQ

Page 33

[VCO BOARD]

REF	ORDER		DESCRIPTION
NO.	NO.		DESCRIPTION
NO.	NO.

R314	7030005290	S.RESISTOR	ERJ2GEJ 682 X (6.8 kΩ )
R315	7030004980	S.RESISTOR	ERJ2GEJ 101 X (100 Ω )
R316	7030004990	S.RESISTOR	ERJ2GEJ 221 X (220 Ω )
R317	7030005070	S.RESISTOR	ERJ2GEJ 683 X (68 kΩ )
R318	7030005300	S.RESISTOR	ERJ2GEJ 150 X (15 Ω )
R319	7030004980	S.RESISTOR	ERJ2GEJ 101 X (100 Ω )
R321	7030005120	S.RESISTOR	ERJ2GEJ 102 X (1 kΩ )
R322	7030004970	S.RESISTOR	ERJ2GEJ 470 X (47 Ω )
R323	7030005590	S.RESISTOR	ERJ2GEJ 680 X (68 Ω )
R324	7030009140	S.RESISTOR	ERJ2GEJ 272 X (2.7 kΩ )
R325	7030009140	S.RESISTOR	ERJ2GEJ 272 X (2.7 kΩ )
R326	7030004970	S.RESISTOR	ERJ2GEJ 470 X (47 Ω )
R327	7030004980	S.RESISTOR	ERJ2GEJ 101 X (100 Ω )
R328	7030007270	S.RESISTOR	ERJ2GEJ 151 X (150 Ω )
R329	7030005070	S.RESISTOR	ERJ2GEJ 683 X (68 kΩ )
R330	7030005300	S.RESISTOR	ERJ2GEJ 150 X (15 Ω )
R360	7030005050	S.RESISTOR	ERJ2GEJ 103 X (10 kΩ )
R361	7030005220	S.RESISTOR	ERJ2GEJ 223 X (22 kΩ )
R362	7030009140	S.RESISTOR	ERJ2GEJ 272 X (2.7 kΩ )
R363	7030009160	S.RESISTOR	ERJ2GEJ 181 X (180 Ω )
R364	7030007290	S.RESISTOR	ERJ2GEJ 222 X (2.2 kΩ )
R365	7030005530	S.RESISTOR	ERJ2GEJ 100 X (10 Ω )
R366	7030005060	S.RESISTOR	ERJ2GEJ 333 X (33 kΩ )
R367	7030008010	S.RESISTOR	ERJ2GEJ 123 (12 kΩ )
R368	7030005570	S.RESISTOR	ERJ2GEJ 820 X (82 Ω )
R369	7030004970	S.RESISTOR	ERJ2GEJ 470 X (47 Ω )
R371	7030004980	S.RESISTOR	ERJ2GEJ 101 X (100 Ω )
R372	7030005090	S.RESISTOR	ERJ2GEJ 104 X (100 kΩ )
R373	7030004980	S.RESISTOR	ERJ2GEJ 101 X (100 Ω )
R374	7030005090	S.RESISTOR	ERJ2GEJ 104 X (100 kΩ )
C301	4030013850	S.CERAMIC	ECUE1E102KBQ
C302	4030013850	S.CERAMIC	ECUE1E102KBQ
C303	4030013850	S.CERAMIC	ECUE1E102KBQ
C304	4030014020	S.CERAMIC	ECUE1H020BCQ
C305	4030014020	S.CERAMIC	ECUE1H020BCQ
C306	4030013850	S.CERAMIC	ECUE1E102KBQ
C307	4030014280	S.CERAMIC	ECUE1H0R3BCQ
C308	4030013850	S.CERAMIC	ECUE1E102KBQ
C309	4030013850	S.CERAMIC	ECUE1E102KBQ
C310	4030013850	S.CERAMIC	ECUE1E102KBQ
C311	4030013850	S.CERAMIC	ECUE1E102KBQ
C312	4030013850	S.CERAMIC	ECUE1E102KBQ
C313	4030013980	S.CERAMIC	ECUE1H010BCQ
C314	4030013980	S.CERAMIC	ECUE1H010BCQ
C315	4030013850	S.CERAMIC	ECUE1E102KBQ
C316	4030014280	S.CERAMIC	ECUE1H0R3BCQ
C317	4030013850	S.CERAMIC	ECUE1E102KBQ
C318	4030013850	S.CERAMIC	ECUE1E102KBQ
C319	4030013850	S.CERAMIC	ECUE1E102KBQ
C320	4030013850	S.CERAMIC	ECUE1E102KBQ
C321	4030014150	S.CERAMIC	ECUE1H220JCQ
C322	4030014180	S.CERAMIC	ECUE1H470JCQ
C323	4030013850	S.CERAMIC	ECUE1E102KBQ
C324	4030013980	S.CERAMIC	ECUE1H010BCQ
C325	4030013980	S.CERAMIC	ECUE1H010BCQ
C326	4030013850	S.CERAMIC	ECUE1E102KBQ
C327	4030014420	S.CERAMIC	ECUE1H0R5BCQ
C328	4030013850	S.CERAMIC	ECUE1E102KBQ
C329	4030013850	S.CERAMIC	ECUE1E102KBQ
C330	4030013850	S.CERAMIC	ECUE1E102KBQ
C331	4030013850	S.CERAMIC	ECUE1E102KBQ
C332	4030013850	S.CERAMIC	ECUE1E102KBQ
C333	4030013850	S.CERAMIC	ECUE1E102KBQ
C334	4030013850	S.CERAMIC	ECUE1E102KBQ
C360	4030013970	S.CERAMIC	C1005 JB 0J 104K-T-N
C361	4030013850	S.CERAMIC	ECUE1E102KBQ
C362	4030013850	S.CERAMIC	ECUE1E102KBQ
C363	4030009820	S.CERAMIC	C1005 JB 1C 103K-T-A
C364	4030014130	S.CERAMIC	ECUE1H120JCQ
C365	4030014020	S.CERAMIC	ECUE1H020BCQ
C366	4030014100	S.CERAMIC	ECUE1H070CCQ
C367	4030013850	S.CERAMIC	ECUE1E102KBQ
C368	4030013850	S.CERAMIC	ECUE1E102KBQ
C369	4030014100	S.CERAMIC	ECUE1H070CCQ
C370	4550006120	S.TANTALUM	TEMSVA 0G 226M-8L
C371	4030014090	S.CERAMIC	ECUE1H060CCQ
C372	4030013850	S.CERAMIC	ECUE1E102KBQ
C373	4030013980	S.CERAMIC	ECUE1H010BCQ
C374	4030014050	S.CERAMIC	ECUE1H030BCQ
C375	4030013850	S.CERAMIC	ECUE1E102KBQ

[VCO BOARD]

REF	ORDER		DESCRIPTION
NO.	NO.		DESCRIPTION
NO.	NO.

C376	4030014070	S.CERAMIC	ECUE1H040BCQ
C377	4030014110	S.CERAMIC	ECUE1H080CCQ
C378	4030014000	S.CERAMIC	ECUE1H1R5BCQ
C379	4030010080	S.CERAMIC	C1005 CH 1E 240J-T-A
C380	4030014050	S.CERAMIC	ECUE1H030BCQ
C381	4030014000	S.CERAMIC	ECUE1H1R5BCQ
C382	4030013980	S.CERAMIC	ECUE1H010BCQ
C383	4030014050	S.CERAMIC	ECUE1H030BCQ
C384	4030014420	S.CERAMIC	ECUE1H0R5BCQ
C385	4030014020	S.CERAMIC	ECUE1H020BCQ
C386	4030014050	S.CERAMIC	ECUE1H030BCQ
C387	4030013850	S.CERAMIC	ECUE1E102KBQ
C388	4030014020	S.CERAMIC	ECUE1H020BCQ
C389	4030013970	S.CERAMIC	C1005 JB 0J 104K-T-N
J301	6910012160	CONNECTOR	IMSA-9230B-1-07Z057-T
J302	6910011770	CONNECTOR	IMSA-9230B-1-10Z057-T
EP1	0910051333	PCB	B 5137C

S.=Surface mount

6 - 10

Image 33

Contents Multiband FM Transceiver Ordering Parts IntroductionRepair Notes Sample OrderTable of Contents General SpecificationsTransmitter Version 50 MHz 145 MHz 440 MHz 1200 MHz MHz RX onlyBand ReceiverWFM WFMLogic Unit Inside ViewsRF Unit CPURemoving the Chassis Panel Removing the Shield Plate Disassembly InstructionsRemoving the Logic Unit Removing the RF Unit Logic unitCircuit Description Antenna Switching Circuits RF UnitReceiver Circuits Duplexer Circuit RF Unit7 1ST Mixer Circuit RF Unit Transmitter Circuits APC Circuits RF Unit DRIVE/POWER Amplifier Circuits RF UnitMHz PA APC Control CircuitPLL Circuits Power Supply Circuits Voltage LineLine Description VCC1 I/O Expander IC RF Unit IC2 Port Allocations2 I/O Expander IC RF Unit IC3 Pin Port Description Number NameCPU Logic Unit IC1 Preparation Adjustment Procedures‘ Required Test Equipment ConnectionPLL Adjustment ULV RF Unit Bottom ViewVLV RF Unit TOP View 6MLVDial Receiver AdjustmentSensitivity VHFLogic Unit TOP View SSG MeterTop Push and hold MHz band 101 dBmPush and hold Displayed frequency445.000 MHz USA-1 SQL keyTransmitter Adjustment HPF OFF LPF DeviationDtmf AUS, SEA=Surface mount Parts ListTrimmer Ceramic ECUE1H121JCQ Transistor UN911D TX Coil Eljnd R10J 0.1U Themistor Ceramic ECUE1H060CCQ Ceramic ECUE1H390JCQ VCO Board Ceramic ECUE1H120JCQ Accessories Mechanical Parts and DisassemblyChassis Parts VCO UnitMP29 C SEMI-CONDUCTOR Information Transistor and FET’SDiodes Board Layouts Logic UnitTOP View IC1 Bottom ViewIC3 GND Pset IfinIC6 RF UnitL912 J4 to Logic unit J1MP1 IC3IC2 J302 to RF unit VCO BoardOUT 12VCOOUT VLVCO3 VHF GND VHVCO3 UVCO3 Uhfout GND 12VCO3 GNDQ354 Block Diagram TX/RX Frequency Mode Xtal BPF PDA2, CK AMPTX/RX Buff ANT LPF HPF AMPMode Xtal Initial BPF ResetMOD TX/RX Frequency ANT Buff HPF LPF YGRLogic Unit Section Voltage DiagramOscin Mixin Oscout GND Mixout REC VCC DET Ifin Rssi 2NDLODEC Ifout Filout Quad WFM NTCCF20124AH 473KCT TXCCOM3 COM2 Reset Power 12VCO COM2 ResetClonein VCC VIN Cpuhv COM4 COM3 COM2 COM1VHF RF Unit400M 1200M00M 50M1200MHz 400MHzPLST1 IN1 GND1ENB VCC2 LOK GND2Icom America Inc Icom Inc 5566I-S