Yaesu FT-2500M Technical Supplement Download Page 64

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Summary of Contents for FT-2500M

Page 1: ...YAESU MUSEN CO LTD C P O Box 1500 Tokyo Japan YAESU U S A 17210 Edwards Rd Cerritos California 90703 U S A YAESU EUROPE B V Snipweg 3 1118DN Schiphol The Netherlands YAESU UK LTD Unit 2 Maple Grove B...

Page 2: ...ctor Control Voltage 2 6 PLL Reference Frequency 2 7 Transmitter Output 2 7 Transmitter Deviation 2 7 Receiver 2 8 Interstage Transformers 2 8 S Meter Calibration 2 8 Scanner Center Stop 2 8 Squelch 2...

Page 3: ...mits se lectable scan resume modes and memory skip priority monitoring and a 1 touch instant recall CALL channel Channel steps are user selectable from 5 to 50 kHz and Automatic Repeater Shift can set...

Page 4: ...low 12 9 SA 20 to 60 C 160 x 50 x 180 mm wIo knobs 1 5 kg 3 3 lb Output Power high mid low 50 25 SW Modulation Type VariableReactance Maximum Deviation 5 kHz Spurious Radiation less than 60 dB Microph...

Page 5: ...1 16 L 2 0 1 6 INDICATED LETTERS 1 2 3 4 5 0 Type L 3216 3 2 2125 2 0 1608 1 6 w T I 25 0 45 0 8 0 45 Unit mm w T 1 6 0 45 0 60 1 25 0 35 0 50 0 8 0 65 0 95 Type RMC 1 lOW l 16W Marking 100 222 473 1...

Page 6: ...t of chip replacements Otherwise it is usually possible to remove and replace chip components with only a tapered temperature controlled soldering iron a set of tweezers and braided copper solder wick...

Page 7: ...chip is to be installed Avoid too much solder which may cause bridging shorting to other parts D Hold the chip with tweezers in the desired position and apply the soldering iron with a motion line tha...

Page 8: ...Notes 1 6 FT 2500M Technical Supplement...

Page 9: ...t and is then returned the Main Unit for amplification by Q1023 Circuit Descripton TDA2003H up to 2 watts for the optional head phone jack or 8 ohm loudspeaker Squelch Control The squelch circuit cons...

Page 10: ...able high medium or low output power under vary ing antenna loading conditions 1 8 Spurious Suppression Generation of spurious products by the trans mitter is minimized by the fundamental carrier freq...

Page 11: ...alf of Q1018 This unlock signal produces a low impedance at the base of the other half of Ql018 which then turns off Automatic Power Controller Q1019 to disable the supply voltage to transmitter RF am...

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Page 13: ...M2902M LPF __ TQt C j _ ___ __ SCAN STOP ONE SQ DATA TONE SOL UNIT w FTS 17A OPTIONJ l 02006 c p u I BEEP PAGER DATA w PAGER UNIT FRC 6 OPTIONJ I r a RESET I I TX RX 1 Mc l C M U T E I i AF M U T E___...

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Page 15: ...I I I 1 1 I PAGER UNIT I I OPTION I L__________ I TONE 1 t f PAGE 1 1 4 F W MHz LOW RPT TONE PAGE I I I I I I I I MIC UNIT I F3426103 I I I I I I I CALL I I I I I I I I Jt 8 DOWN B JP1501 __ ___ __ I...

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Page 17: ...x 6 I U51425007 HEX SOCKET HEAD BOLT M4 x 25B Basic Accessories YAESU P N Q0000008 T9018615A E06517500 Description FUSE 15A DC CABLE OPERATING MANUAL R3520200A PANEL R3520090 WINDOW Qty 2 1 1 Qty 1 2...

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Page 19: ...he lithium backup battery should not require servicing for a period of several years however to replace the cell order Yaesu PIN Q9000552 0 First note the location and tab polarity of BT2001 mounted o...

Page 20: ...th If your TNC model does not have a capacitive coupled audio input output see the notice be low If you choose to perform this modification you will need a low wattage soldering iron tweezers and the...

Page 21: ...un the leads from your TNC through this cut out and solder them to the appropriate leads on the CNTL Unit Be sure to insulate any spliced leads with heat shrink tubing or electrical tape 02018 AF Buff...

Page 22: ...K High Mid Low TX power and locking function use t 8 to toggle K V olume Squelch same as before K Channel Selection DIAL knob or microphone UP OWN keys K Paging function selection toggle to select pag...

Page 23: ...m the transceiver was purchased for instruc tions regarding repair Authorized Yaesu service technicians realign all circuits and make com plete performance checks to ensure compliance with factory spe...

Page 24: ...t be connected to the main antenna jack in all procedures that call for transmission except where specified otherwise Correct alignment is not possible with an antenna After completing one step read t...

Page 25: ...ust TClOOl on the Main Unit if necessary so the counter frequency is within 100 Hz of 146 000 MHz Transmitter Output 0 Preset trimmer potentiometers VR2003 VR2004 and VR2005 fully clockwise 0 While tu...

Page 26: ...2006 on the CNTL Unit so that all S meter segments are just on Scanner Center Stop 0 Connect the DC voltmeter 3 V range be tween TP2002 and TP2001 on the CNTL Unit 0 With boththe transceiver and signa...

Page 27: ...2SC2759 U22 0305 2SC3356 R24 030 1 303 VCO UN I T F3 1 52 1 0 1 A 0302 C302 1 6 _ 3 C H 4 H u C3 9 co _ 4P CH cci TP301 TP H 0 0 TP302 TP H C310 1 5 CH To MAIN Unit Seo Pago 38 1 R304 I 0 TP303 TP H N...

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Page 29: ...B O OOluF 50V B O OOluF 50V B 4 7uH 4 7uH 2 2uH 2 2uH 27K 1 lOW 5 27K 1 lOW 5 2 2K 1 lOW 5 100 1 lOW 5 27K 1 lOW 5 27K 1 lOW 5 lK 1 lOW 5 VCO Unit MFGR S DESIG YAESU P N VERS CA1305001 F3152101A GRM40...

Page 30: ...03 R 0310 CHI P RES 220 1 lOW 5 RMCl lOT 221J J24205221 R 031 1 CHI P RES 1 5K 1 lOW 5 RMCl lOT 152J J24205152 R 0312 CHI P RES 22K 1 lOW 5 RMC 1 lOT 223J J24205223 TP0301 TP H MK 10160 Q5000037 TP030...

Page 31: ...N I T F3427DDO To CNTL Unit J2008 See Page 30 1 To CNTL Unit J2007 See Page 3D 1 13 7dB 4 6V 15 6dB 3 BV SOL CLOSE OV SOL OPEN 145 00MHz 40dB MOO t l kHz DEV 3 5 r H 145 00MHz 50w Connected to 8 50Q d...

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Page 33: ...MAIN Unit TDA2003H 01 023 M6778 1 L 01009 Emitter I Collector Base 2SB 1 1 43S 0 1 0 1 5 1 0 1 9 AN6541 0 1 0 1 3 i I Emitter Collector Base 2SC2053 0 1 0 1 0 component side 38 3...

Page 34: ...e 2 IMH5 H5 0 1 006 1 02 1 Base 2 fttli tm tm Emitter 1 t Collector 2 Collector 1 Col lector 2 Col lector 1 Collector 2 Base 1 IMXl X l 0 1 0 1 8 Emitter Common Emitter l IMX5 X5 01 026 Emitter l IMZ2...

Page 35: ...GRM40B102M50PT K22170805 c 1028 CHI P CAP O O luF 50V B GRM40B103M50PT K22170817 c 1029 CHI P CAP O O luF 50V B GRM40B103M50PT K22170817 c 1030 CHI P CAP O OOluF 50V B GRM40B102M50PT K22170805 c 1031...

Page 36: ...B GRM408103M50PT K22170817 c 1086 CHI P CAP 0 00luF 50V B GRM408102M50PT K22170805 c 1087 CHI P CAP O OOluF 50V B GRM408102M50PT K22170805 c 1089 CHI P CAP O OOluF 50V B GRM40B102M50PT K22170805 c 10...

Page 37: ...CERAMIC CAP 0 022uF 25V x UAT06X223K L45AE K19149017 c 1 143 CERAMI C CAP 0 015uF 25V x UAT06X153K L45AE K19149015 c 1 144 CHI P CAP 0 00luF 50V B GRM408102M50PT K22170805 c 1 145 CHI P CAP O OOluF 50...

Page 38: ...L 2 5T5 0D1 2UEW R L0022131 L 1015 COI L 8 5T4 0D0 8UEW R L0020751A L 1016 COI L 8 5T4 0D0 8UEW R L0020751A L 1018 COI L l 5T3 5D0 6UEW R L0021359A L 1019 COI L 4 5T3 5D0 6UEW R L0020679A L 1 020 COI...

Page 39: ...5221 R 1021 CHI P RES lK 1 lOW 5 RMCl lOT 102J J24205102 R 1022 CHI P RES 100 1 lOW 5 RMCl lOT 101J J24205101 R 1023 CHI P RES 15 1 lOW 5 RMCl lOT 150J J24205150 R 1024 CHI P RES lK 1 lOW 5 RMCl lOT 1...

Page 40: ...l lOT 472J J24205472 R 1085 CHI P RES lOK 1 lOW 5 RMCl lOT 103J J24205103 R 1086 CHI P RES 15K 1 lOW 5 RMC1 lOT 153J J24205153 R 1087 CHI P RES 4 7K 1 lOW 5 RMCl lOT 472J J24205472 R 1088 CHI P RES 10...

Page 41: ...J24205102 R 1 129 CHI P RES 6 8 1 lOW 5 RMCl lOT 6R8J J24205689 R 1 130 CHI P RES 680 1 lOW 5 RMCl lOT 681J J24205681 T 1001 COI L 160M R12 K905X L0022053 T 1002 COI L 160M Rl2 K907X L0022055 T 1003 C...

Page 42: ...Notes...

Page 43: ...CL 0 U I 0 U 3 UJ Z l Cfl U 0 E a 0 To DISPLAY Unit JP3001 See Page JE 1 DESCRI PT I ON VALUE WV TOL MFGR S DES I G YAESU P N VERS MIC UNI T PCB With Components W 0 WIRE ASSY CS1368001 Printed C i rcu...

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Page 45: ...006 Pin 22 TOR VALUES AH IN 0 10W l I CNTL UI T F3426 1 0 1 v LUEB so I I l i I I I I I 1 I I I PAGER UN 1 T i To DISPLAY Unit J3001 See Page 3E 1 C20S9 ri ri ri ri To DISPLAY Unit J3002 See Page 3E 1...

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Page 47: ...2K P 02001 2003 2004 2005 2006 2008 2009 Base Emitter 2SC27 1 2 G R LG 02005 20 18 Cathode 1 2 Anode 1 Anode 2 1 SS32 1 F9 02002 0 Emitter I Collector Bose 2SB1 1 40S 02016 2SB1 1 43S 02004 Ground Inp...

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Page 49: ...F 16V 39pF 50V CH 0 0047uF 50V B O OluF 50V B 39pF 50V CH 0 033uF 25V B 0 luF 25V B 680pF 50V B 0 luF 25V B O luF 25V B 3 3uF 6 3V 0 0022uF 50V B 2 2uF 6 3V lOOuF 16V O OOluF 50V B O OOluF 50V B 0 0lu...

Page 50: ...0004 16V 16V100M4X7TR2 K46120004 50V B GRM40B102M50PT K22170805 16V 16V100M4X7TR2 K46120004 50V B GRM40B102M50PT K22170805 50V B GRM40B102M50PT K22170805 50V B GRM40B222M50PT K22170809 50V B GRM40B103...

Page 51: ...CHI P RES lOOK 1 lOW 5 RMC1 lOT 104J J24205104 R 2017 CHI P RES lK l lOW 5 RMCl lOT 102J J24205102 R 2018 CHI P RES lK 1 lOW 5 RMCl lOT 102J J24205102 R 2019 CHI P RES lOK 1 lOW 5 RMCl lOT 103J J2420...

Page 52: ...HI P RES lOK 1 lOW 5 RMCl lOT 103J J24205103 R 20BO CHI P RES lOK 1 lOW 5 RMCl lOT 103J J24205103 R 20Bl CHI P RES lOK 1 lOW 5 RMCl lOT 103J J24205103 R 20B2 CHI P RES lOK 1 lOW 5 RMCl lOT 103J J24205...

Page 53: ...2005 See Page 30 1 D I SP UN I T F3426 1 02 OC3001 FTD 1 0262AB CSP ZBl To CNTL Unit J2006 See Page 30 1 0 VR30Dt 20K8 To MIC Unit JP1501 See Page 3C NOTE1 RESI STOR VALUES ARE IN a t 10 1 CAPACI TOR...

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Page 57: ...lOT 104J J24205104 R 3002 CHI P RES lOOK 1 lOW 5 RMCl lOT 104J J24205104 R 3003 CHI P RES lOK 1 lOW 5 RMCl lOT 103J J24205103 R 3004 CHI P RES lOK 1 lOW 5 RMCl lOT 103J J24205103 R 3005 CHI P RES 2 2M...

Page 58: ...YAESU P N VERS LCD HOLDER R3516450A LIGHT GUI DE R3520070 L I GHT GUI DE R3520080 REFLECTOR R7139670A SHEET A R7140070 SHEET R7149850 LED SPACER 2pcs LH 5 3 S6000236 LED SPACER LH 5 9 S6000242 NYLON...

Page 59: ...Pin 20 CM8880SIT 2 0101 Pin 10 r _N u_ 0 _ 00 o a 0 a 0 II NOTE c u 0 0 u c u 0 IJ 0 u c c u u 0 0 0 u RES I STER VALUES ARE I N 0 1 0W CAPAC I TOR VALUES ARE I N F SOV CTl CAPAC I TOR VALUES ARE TAN...

Page 60: ...35M 8R K78100015 c 0108 CHI P CAP lOOpF 50V CH GRM40CH101J50PT K22170235 c 0109 CHI P CAP lOOpF 50V CH GRM40CH101J50PT K22170235 c 0110 CHI P CAP lOOpF 50V CH GRM40CH101J50PT K22170235 c 0 1 1 1 CHI P...

Page 61: ...1 Anoda 2 1 SS30 1 83 01 0 1 solder side C10S Q 47 25V T C 1 06 4 7 6 3V T C 1 07 0 00 B NOTE C10 1 1 6V T RES I STER VALUES ARE I N G 1 16W I CAPAC I TOR VALUES ARE I N F SOY CT CAPAC I TOR VALUES A...

Page 62: ...c 0106 TANTALUM CHI P CAP 4 7uF 6 3V F950J475MSAAF1Q2 K78080002 c 0107 CHI P CAP O OOluF 50V B GRM398102M50PT K22174809 c 0108 CHI P CAP 0 luF 25V B GRM408104M25PT K2214081 1 COOlOl CERAMI C OSC lMHz...

Page 63: ...Impedance 2 0kQ Operating Temperature Range 10 C 60 C Voltage Requirement 1 1V lOV GRAY 1 Call Button 2 N C RLACl 3 PTT Button WHITE 4 Mic Tx Audio SH I ELD 5 GND BLUE 6 5V DC GREEN 7 Up Button RED 8...

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Page 65: ...J IOOOp X4 C l6 Cl7 Specifications Micropone Impedance 1 5kQ Operating Temperature Range l0 C 60 C Voltage Requirement 4 8V 5 2V UP D p rr fil 1 D MR P Button 11r n J U l J U l nnJ 111 2 N C 3 PTT But...

Page 66: ...D 0003 LED SLM 13DW G2070326 D 0004 LED SLM 13DW G2070326 D 0005 LED SLM 13DW G2070326 D 0006 LED SLM 13DW G2070326 D 0007 LED SLM 13DW G2070326 MAI N UNI T ASS Y B761 18Gl S8100307 KEYBOARD UNI T AS...

Page 67: ...1994 Yaesu Musen Co Ltd All right reserved Printed in Japan YAE SU Per f ormance without compromise SM E06519000 4080 AY No portion of this manual may be reproduced without the permission of Yaesu Mus...

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