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Specifications

Exploded View

Block Diagram

Alignment

Board Unit (Schematics, Layouts & Parts)

MAIN Unit

PANEL Unit

DSP Unit

VHF/UHF DIGITAL/ANALOG TRANSCEIVER

FTM-7250DR/DE

Introduction

This manual provides the technical information necessary for ser

-

vicing the FTM-7250DR/DE Transceiver.

Servicing this equipment requires expertise in handing surface-

mount chip components. Attempts by non-qualified persons 

to service this equipment may result in permanent damage not 

covered by the warranty, and may be illegal in some countries.

While we believe the information in this manual to be correct, 

YAESU assumes no liability for damage that may occur as a 

result of typographical or other errors that may be present. Your 

cooperation in pointing out any inconsistencies in the technical 

information would be appreciated.

Contents

Technical Supplement

EH075M90B

©2019  YAESU  MUSEN  CO.,  LTD.         

Important Note

This transceiver was assembled using Pb (lead) free solder, based on the RoHS specification.

Only lead-free solder (Alloy Composition: Sn-3.0Ag-0.5Cu) should be used for repairs performed on this apparatus. The solder stated 

above utilizes the alloy composition required for compliance with the lead-free specification, and any solder with the above alloy com

-

position may be used.

Summary of Contents for FTM-7250DR

Page 1: ...we believe the information in this manual to be correct YAESU assumes no liability for damage that may occur as a result of typographical or other errors that may be present Your cooperation in point...

Page 2: ...er Output 50 25 5 W Modulation Type F2D F3E Variable Reactance F7W 4FSK C4FM Maximum Deviation 5 kHz Wide 2 5 kHz Narrow Spurious Radiation Better than 60 dB Microphone Impedance 2 k Ohms Receiver Cir...

Page 3: ...2660701 DSP ASSY MAIN Unit RA6069000 COVER CHASSIS S5000288 FAN GUARD M2090060A FAN RA606890A Lot 1 12 RA606890C Lot 13 CHASSIS RA6061700 RUBBER FAN P1091172A CONNECTOR T9207482 CE OFF T9207483 CE ON...

Page 4: ...BLOCK DIAGRAM 1 FTM 7250DR DE Technical Supplement Block Diagram...

Page 5: ...pair Authorized YAESU service technicians realign all circuits and make complete performance checks to ensure compliance with factory specifications after replacing any faulty components Those who do...

Page 6: ...er alignment Maintain the supply voltage at 13 8V DC for all steps Internal System Alignment Routine This uses a programmed routine in the transceiver which simplifies many previously complex discrete...

Page 7: ...ry the precise settings for the transceiver on your bench may be slightly different PLL Reference Frequency Adjustment 1 Rotate the DIAL knob to select the Alignment Menu rF 2 Press the V M MW key 3 P...

Page 8: ...the DIAL knob to select the Alignment Menu tL 10 Press the V M MW key 11 Press the BAND SQL key three times 12 Press the V M MW key Tight Squelch Level 1 Inject a 145 100 MHz signal at a level of 3 d...

Page 9: ...IAL knob to select the Alignment Menu S1 10 Press the V M MW key 11 Press the BAND SQL key three times 12 Press the V M MW key S meter Level S9 1 Inject a 145 100 MHz signal at a level of 23 dB V with...

Page 10: ...smitter adjust the DIAL knob so that the RF Power Me ter reading is 50 W 1 5 W 10 Release the PTT switch then press the V M MW key TX Power Mid 1 Press the BAND SQL key to enter the 144 MHz band 2 Rot...

Page 11: ...he PTT switch then press the V M MW key TX Deviation 1 Inject a 1 kHz 50 mV signal from the Audio Generator 2 Press the BAND SQL key to enter the 144 MHz band 3 Rotate the DIAL knob to select the Alig...

Page 12: ...the PTT switch then press the V M MW key DCS TX Deviation 1 Press the BAND SQL key to enter the 144 MHz band 2 Rotate the DIAL knob to select the Alignment Menu dC 3 Press the V M MW key 4 Press the P...

Page 13: ...FTM 7250DR DE Technical Supplement MAIN 1 Circuit Diagram MAIN Unit Lot 1...

Page 14: ...FTM 7250DR DE Technical Supplement MAIN 2 Parts Layout Side A MAIN Unit Lot 1 1 2 3 4 5 A B C D E F G...

Page 15: ...FTM 7250DR DE Technical Supplement MAIN 3 Parts Layout Side B MAIN Unit Lot 1 1 2 3 4 5 a b c d e f g...

Page 16: ...FTM 7250DR DE Technical Supplement MAIN 4 Circuit Diagram MAIN Unit Lot 2...

Page 17: ...FTM 7250DR DE Technical Supplement MAIN 5 Parts Layout Side A MAIN Unit Lot 2 1 2 3 4 5 A B C D E F G...

Page 18: ...FTM 7250DR DE Technical Supplement MAIN 6 Parts Layout Side B MAIN Unit Lot 2 1 2 3 4 5 a b c d e f g...

Page 19: ...FTM 7250DR DE Technical Supplement MAIN 7 Circuit Diagram MAIN Unit Lot 3 4...

Page 20: ...FTM 7250DR DE Technical Supplement MAIN 8 Parts Layout Side A MAIN Unit Lot 3 4 1 2 3 4 5 A B C D E F G...

Page 21: ...FTM 7250DR DE Technical Supplement MAIN 9 Parts Layout Side B MAIN Unit Lot 3 4 1 2 3 4 5 a b c d e f g...

Page 22: ...FTM 7250DR DE Technical Supplement MAIN 10 Circuit Diagram MAIN Unit Lot 5...

Page 23: ...FTM 7250DR DE Technical Supplement MAIN 11 Parts Layout Side A MAIN Unit Lot 5 1 2 3 4 5 A B C D E F G...

Page 24: ...FTM 7250DR DE Technical Supplement MAIN 12 Parts Layout Side B MAIN Unit Lot 5 1 2 3 4 5 a b c d e f g...

Page 25: ...4 1 B e4 C 1045 CHIP TA CAP 0 22uF 20V TMCP1D224MTRF K78130069 1 A C3 C 1046 CHIP CAP 0 1uF 25V B GRM155B31E104KA87D K22148838 1 A C3 C 1047 CHIP CAP 47pF 50V CH GRM1552C1H470JA01D K22178228 1 B e4 C...

Page 26: ...CHIP CAP 100pF 50V CH GRM1882C1H101JA01D K22174235 1 A C2 C 1174 CHIP CAP 100pF 50V CH GRM1882C1H101JA01D K22174235 1 A C2 C 1175 CHIP CAP 0 001uF 50V CH GRM1882C1H102JA01D K22174275 1 A C2 C 1176 CHI...

Page 27: ...0 CHIP CAP 0 001uF 100V CH GRM2192C2A102JA01D K22200203 1 A E3 C 1311 CHIP CAP 0 001uF 50V B GRM155B11H102KA01D K22178809 1 B b3 C 1312 CHIP CAP 0 01uF 25V B GRM155B11E103KA01D K22148834 1 B d3 C 1313...

Page 28: ...c4 C 1440 CHIP CAP 0 001uF 50V B GRM155B11H102KA01D K22178809 1 B d4 C 1451 CHIP CAP 0 001uF 50V B GRM155B11H102KA01D K22178809 1 B d3 C 1452 CHIP CAP 22pF 50V CH GRM1552C1H220GA01D K22179707 1 B d3...

Page 29: ...A F3 C 1583 CHIP CAP 0 001uF 50V B GRM155B11H102KA01D K22178809 1 B b4 C 1584 CHIP CAP 0 001uF 50V B GRM155B11H102KA01D K22178809 1 A F3 C 1585 CHIP CAP 0 1uF 25V B GRM155B31E104KA87D K22148838 1 A F4...

Page 30: ...D K22178236 1 A A4 C 1770 CHIP CAP 1uF 16V B GRM155B31C105KA12D K22128817 1 A B4 C 1771 CHIP CAP 820pF 50V CH GRM1882C1H821JA01D K22174283 1 A B4 C 1772 CHIP CAP 47pF 50V CH GRM1552C1H470GA01D K221797...

Page 31: ...HIP CAP 0 047uF 10V B GRM155B11A473KA01D K22108801 5 CD1401 CERAMIC DISC JTBM450CX7 H7901520 1 B c4 CF1401 CERAMIC FILTER LTM450FW A H3900572A 1 A E4 CF1402 CERAMIC FILTER LTM450GW A H3900573A 1 A D4...

Page 32: ...f1 FB1832 FERRITE BEADS SMB304729 L9190094 1 A B1 FB1833 FERRITE BEADS SMB304729 L9190094 1 A A1 FB1851 FERRITE BEADS BK1608HS121 T L9190081 1 B f1 FB1852 FERRITE BEADS BK1608HS121 T L9190081 1 B f1...

Page 33: ...304 COIL 0 033uH AS100547 33N L0022546 1 A F3 L 1305 COIL E2 0 4 3 0 11 5T L L0022646 1 A F2 L 1306 COIL 0 047uH TAS0805 47NK L0023104 1 A G3 L 1307 COIL 0 033uH AS100547 33N L0022546 1 A G2 L 1451 M...

Page 34: ...070075 1 A C3 Q 1153 TRANSISTOR DTC144EE TL G3070075 1 A D3 Q 1154 TRANSISTOR 2SA1774 TL R G3117748R 1 A D3 Q 1301 TRANSISTOR DTC143ZE TL G3070102 1 B c3 Q 1302 IC LM2904PWR G1094010 1 B d3 Q 1351 TRA...

Page 35: ...24189013 1 A C3 R 1025 CHIP RES 220 1 16W 5 RMC1 16S 221JTH J24189017 1 B d3 R 1026 CHIP RES 33k 1 16W 5 RMC1 16S 333JTH J24189043 1 B d3 R 1027 CHIP RES 1k 1 16W 5 RMC1 16S 102JTH J24189025 1 B d3 R...

Page 36: ...103JTH J24189037 1 A B3 R 1133 CHIP RES 10k 1 16W 5 RMC1 16S 103JTH J24189037 1 B e3 R 1134 CHIP RES 22k 1 16W 5 RMC1 16S 223JTH J24189041 1 A B3 R 1135 CHIP RES 22k 1 16W 5 RMC1 16S 223JTH J24189041...

Page 37: ...1 B b2 R 1248 CHIP RES 220 1 16W 5 RMC1 16S 221JTH J24189017 1 B a2 R 1249 CHIP RES 220 1 16W 5 RMC1 16S 221JTH J24189017 1 B b2 R 1250 CHIP RES 220 1 16W 5 RMC1 16S 221JTH J24189017 1 B a2 R 1251 CH...

Page 38: ...189141 1 A E4 R 1422 CHIP RES 1k 1 16W 5 RMC1 16S 102JTH J24189025 1 A D3 R 1423 CHIP RES 10k 1 16W 5 RMC1 16S 103JTH J24189037 1 B c4 R 1424 CHIP RES 10k 1 16W 5 RMC1 16S 103JTH J24189037 1 A D3 R 14...

Page 39: ...16S 103JTH J24189037 1 A F3 R 1582 CHIP RES 100k 1 16W 5 RMC1 16S 104JTH J24189049 1 A F3 R 1583 CHIP RES 470 1 16W 5 RMC1 16S 471JTH J24189021 1 B b3 R 1601 CHIP RES 6 8k 1 16W 5 RMC1 16S 682JTH J24...

Page 40: ...89045 1 A F4 R 1715 CHIP RES 390k 1 16W 5 RMC1 16S 394JTH J24189056 1 A F4 R 1716 CHIP RES 68k 1 16W 5 RMC1 16S 683JTH J24189047 1 A F4 R 1717 CHIP RES 3 3k 1 16W 5 RMC1 16S 332JTH J24189031 1 A F4 R...

Page 41: ...16S 334JTH J24189055 1 B f3 R 1841 CHIP RES 10k 1 16W 5 RMC1 16S 103JTH J24189037 1 A B2 R 1842 CHIP RES 150k 1 16W 0 5 MCR01MZPD1503 J24189328 1 A A3 R 1843 CHIP RES 470k 1 16W 5 RMC1 16S 474JTH J241...

Page 42: ...2 J42900039 1 B f3 RB1641 BLOCK RES MNR04M0ABJ102 J42900039 1 B f4 RB1642 BLOCK RES MNR04M0ABJ102 J42900039 1 A A4 RB1643 BLOCK RES MNR04M0ABJ102 J42900039 1 B f4 RL1231 RELAY DC12V AGP2013F DC12V M11...

Page 43: ...FTM 7250DR DE Technical Supplement PANEL 1 PANEL Unit Circuit Diagram...

Page 44: ...FTM 7250DR DE Technical Supplement PANEL 2 PANEL Unit Parts Layout Side A Side B 1 2 A B C D E F G H 1 2 a b c d e f g h...

Page 45: ...CHIP CAP 1uF 10V B GRM155B31A105KE15D K22108809 1 B f1 C 2036 CHIP CAP 0 001uF 50V B UMK105B102KW F K22178829 1 A D2 C 2037 CHIP CAP 0 001uF 50V B UMK105B102KW F K22178829 1 A D2 C 2038 CHIP CAP 0 001...

Page 46: ...C1 16S 102JTH J24189025 1 B e1 R 2021 CHIP RES 1k 1 16W 5 RMC1 16S 102JTH J24189025 1 B d1 R 2022 CHIP RES 10 1 16W 5 RMC1 16S 100JTH J24189001 1 B f2 R 2023 CHIP RES 150 1 16W 5 RMC1 16S 151JTH J2418...

Page 47: ...k 1 16W 5 RMC1 16S 333JTH J24189043 1 B d2 R 2078 CHIP RES 100k 1 16W 5 RMC1 16S 104JTH J24189049 1 B d1 R 2079 CHIP RES 100k 1 16W 5 RMC1 16S 104JTH J24189049 1 B e2 R 2080 CHIP RES 100k 1 16W 5 RMC1...

Page 48: ...FTM 7250DR DE Technical Supplement DSP 1 DSP Unit Circuit Diagram...

Page 49: ...FTM 7250DR DE Technical Supplement DSP 2 DSP Unit Parts Layout Side A Side B 1 2 3 A B C 1 2 3 a b c...

Page 50: ...55B11H102KA01D K22178809 1 A B1 C 9046 CHIP CAP 0 01uF 25V B GRM155B11E103KA01D K22148834 1 A C1 C 9047 CHIP CAP 220pF 50V CH GRM1552C1H221JA01D K22179713 1 A C1 C 9048 CHIP CAP 0 001uF 50V B GRM155B1...

Page 51: ...R 9061 CHIP RES 0 1 16W 5 RMC1 16S JPTH J24189070 1 A C1 R 9062 CHIP RES 22 1 16W 5 RMC1 16S 220JTH J24189005 1 A C2 R 9063 CHIP RES 22 1 16W 5 RMC1 16S 220JTH J24189005 1 A A1 R 9064 CHIP RES 22 1 1...

Page 52: ...without the permission of YAESU MUSEN CO LTD YAESU MUSEN CO LTD Tennozu Parkside Building 2 5 8 Higashi Shinagawa Shinagawa ku Tokyo 140 0002 Japan YAESU USA 6125 Phyllis Drive Cypress CA 90630 U S A...

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