Yaesu FT-7800R Technical Supplement Download Page 5 | Manualshive

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Summary of Contents for FT-7800R

Page 1: ...s etc or leaded components only While we believe the technical information in this manual to be correct Vertex Standard assumes no liability for dam age that may occur as a result of typographical or...

Page 2: ...5 kHz Spurious Radiation At least 60 dB below Microphone Impedance 2 k DATA Jack Impedance 10 k Receiver Circuit Type Double conversion superheterodyne Intermediate Frequencies 45 05 MHz 450 kHz Sens...

Page 3: ...RING RELEASE KNOB RA0540400 RELEASE KNOB RA0022900 COIL SPRING T9101536 CT CABLE RA0539800 SUB PANEL CS1804001 CASE W NYLON NET RA0322600 RUBBER SHEET T9206876 WIRE ASSY RA0415200 x2 pcs GROUND PLATE...

Page 4: ...B 2 Note Exploded View Miscellaneous Parts...

Page 5: ...D 1 Block Diagram...

Page 6: ...D 2 Note Block Diagram...

Page 7: ...o the ceramic filter CF1001 which strips away all but the desired shig nal and then passes through the limiter amplifier within Q1023 TA31136FN to the ceramic discriminator CD1001 which removes any am...

Page 8: ...RD07MVS1 and Power amplifier Q1087 RD70HVF1 so as to maintain stable output power under varying antenna loading con ditions Circuit Description PTT Circuit When the PTT switch is pressed pin 8 of sub...

Page 9: ...alignment procedures in the interest of improved performance with out notifying owners Under no circumstances should any alignment be attempt ed unless the normal function and operation of the trans...

Page 10: ...lowing sequence MHz PRI TONE HM RV LOW ACC BAND SET V M MW SCAN SEL S SCH ARTS 3 Press and hold in the key to cause A 0 REF xxH to appear on the display this signifies that the transceiver is now in t...

Page 11: ...the key if needed so that the wattmeter reading is 20 Watts 0 5 Watt 16 Increase the Transmit Power Level to HIGH 17 Press the PTT switch to activate the transmitter and adjust the DIAL knob while pre...

Page 12: ...r 4 Press the LOW ACC key while pressing and hold ing in the key 5 Increase the RF Signal Generator output level to 23 dB 6 Press the V M MW key while pressing and holding in the key 7 Tune the freque...

Page 13: ...0 dB 45 05 MHz 12 3 dB 11 6 dB 0 83 V 0 13 V 4 94 V 2 22 V 0 82 V 0 71 V 0 11 V 0 23 V 12 73 V 12 76 V 2 09 V 0 68 V 1 23 V 4 72 V 0 69 V 45 05 MHz 23 4 dB 22 6 dB Q1023 Pin 1 4 79 V Pin 4 4 81 V Pin...

Page 14: ...F 2 Note MAIN Unit...

Page 15: ...3 1013 1014 1074 1075 2SC5277 D2 Q1012 2SC5374 NA Q1078 2SK2596 BX Q1084 BU2090FS Q1059 M51132FP Q1034 MB15A022PFV1 Q1070 TA31136FN Q1023 BU4066BCFV Q1039 NJM2902V Q1040 DTA144EE 16 Q1056 1062 DTC144E...

Page 16: ...1077 NJM2902V Q1028 1031 DTA144EE 16 Q1082 1088 DTC144EE 26 Q1032 1033 1036 1042 1066 1067 1079 1080 1083 NJM78L05 8C Q1049 2SB1201S Q1044 2SD1664 DA Q1085 AT24C256 Q1053 NJM2904V Q1081 MM1216ENRE 1C...

Page 17: ...J50PT K22178220 1 A E5 C 1029 CHIP CAP 0 001uF 50V B GRM36B102K50PT K22178809 1 A F5 C 1030 CHIP CAP 1pF 50V CK GRM36CK010B50PT K22178287 1 A E5 C 1031 CHIP CAP 0 001uF 50V B GRM36B102K50PT K22178809...

Page 18: ...CH060B50PT K22178293 1 B b3 C 1079 CHIP CAP 47pF 50V CH GRM36CH470J50PT K22178228 1 B b4 C 1080 CHIP CAP 0 001uF 50V B GRM36B102K50PT K22178809 1 B b4 C 1081 CHIP CAP 0 001uF 50V B GRM36B102K50PT K221...

Page 19: ...16V B GRM36B103K16PT K22128804 1 B e7 C 1160 CHIP TA CAP 22uF 6 3V TEMSVA0J226M 8R K78080047 1 B e7 C 1161 CHIP CAP 0 01uF 16V B GRM36B103K16PT K22128804 1 B e6 C 1162 CHIP CAP 0 01uF 16V B GRM36B103K...

Page 20: ...O CAP 100uF 16V 16V101M6X7TR2 K46120007 1 A B2 C 1236 CHIP CAP 0 001uF 50V B GRM36B102K50PT K22178809 1 B g2 C 1237 CHIP CAP 0 022uF 25V B GRM39B223K25PT K22144807 1 B g3 C 1238 CHIP TA CAP 22uF 16V T...

Page 21: ...C 1315 CHIP TA CAP 10uF 10V TEMSVA1A106M 8R K78100028 1 A D6 C 1316 CHIP CAP 0 1uF 10V B GRM36B104K10PT K22108802 1 A D6 C 1317 CHIP CAP 0 001uF 50V B GRM36B102K50PT K22178809 1 A E5 C 1318 CHIP CAP 0...

Page 22: ...AP 0 1uF 16V B GRM39B104K16PT K22124805 1 B f3 C 1396 CHIP CAP 0 001uF 50V B GRM36B102K50PT K22178809 1 B f3 C 1397 CHIP CAP 0 1uF 16V B GRM39B104K16PT K22124805 1 B f2 C 1398 CHIP CAP 33pF 50V CH GRM...

Page 23: ...VER H2 1 A C2 C 1417 CHIP TA CAP 1uF 25V TEMSVA1E105M 8R K78140013 1 B f1 C 1418 CHIP CAP 0 47uF 25V B GRM40B474K25PT K22140824 1 B e1 C 1419 CHIP CAP 0 001uF 50V B GRM39B102K50PT K22174821 1 B e1 C...

Page 24: ...R50CY21D K22234201 VER C2 1 B b2 C 1444 CHIP CAP 0 5pF 200V CK GRM1884C2DR50CY21D K22234201 VER C3 1 B b2 C 1444 CHIP CAP 0 5pF 200V CK GRM1884C2DR50CY21D K22234201 VER D1 1 B b2 C 1444 CHIP CAP 0 5pF...

Page 25: ...1884C2DR50CY21D K22234201 VER A2 1 A G3 C 1471 CHIP CAP 0 5pF 200V CK GRM1884C2DR50CY21D K22234201 VER A3 1 A G3 C 1471 CHIP CAP 0 5pF 200V CK GRM1884C2DR50CY21D K22234201 VER B1 1 A G3 C 1471 CHIP CA...

Page 26: ...e6 D 1045 DIODE DA221 TL G2070178 1 B e6 D 1046 DIODE HVC375B TRF G2070856 1 B e5 D 1047 DIODE HVC350B TRF G2070596 1 B e5 D 1048 DIODE HSC277TRF G2070584 1 B e5 D 1049 DIODE HVC365 TRF G2070902 1 B...

Page 27: ...03 M RFC 0 039uH 2 C1608CA 39NG L1691039 1 B c4 L 1004 M RFC 0 1uH TFL0816 100N L1690981 1 B c5 L 1005 M RFC 0 01uH 2 C1608CA 10NG L1691032 1 B c4 L 1006 COIL E2 0 28 1 0 4T R L0022365 1 B d5 L 1007 C...

Page 28: ...1 A C3 L 1065 COIL 0 009uH AS050325 9R0NJ L0022826 1 A D2 L 1066 M RFC 1uH ELJ ND1R0JF L1690977 1 B f2 L 1067 COIL E2 0 35 1 6 5 5T L L0022616 1 A C3 L 1068 COIL E2 0 35 1 6 7T L L0022390 1 A C3 L 106...

Page 29: ...TRANSISTOR 2SC4617 TL R G3346178R 1 B h6 Q 1053 IC AT24C256N 10SI 1 8 G1093837 1 B i6 Q 1054 TRANSISTOR DTC144EE TL G3070075 1 A A5 Q 1055 TRANSISTOR UMA8N TR G3070270 1 A G6 Q 1056 TRANSISTOR DTA144E...

Page 30: ...CHIP RES 47 1 16W 5 RMC1 16S 470JTH J24189009 1 B c4 R 1040 CHIP RES 2 2k 1 16W 5 RMC1 16S 222JTH J24189029 AUS 1 B c5 R 1040 CHIP RES 2 2k 1 16W 5 RMC1 16S 222JTH J24189029 EXP 1 B c5 R 1040 CHIP RE...

Page 31: ...7 R 1107 CHIP RES 1k 1 16W 5 RMC1 16S 102JTH J24189025 1 B e6 R 1108 CHIP RES 4 7k 1 16W 5 RMC1 16S 472JTH J24189033 1 B e6 R 1109 CHIP RES 100k 1 16W 5 RMC1 16S 104JTH J24189049 1 A D7 R 1110 CHIP RE...

Page 32: ...013 1 B h2 R 1189 CHIP RES 10 1 16W 5 RMC1 16S 100JTH J24189001 1 B i3 R 1190 CHIP RES 10 1 16W 5 RMC1 16S 100JTH J24189001 1 B i3 R 1191 CHIP RES 10k 1 16W 5 RMC1 16S 103JTH J24189037 1 A A3 R 1192 C...

Page 33: ...B6 R 1262 CHIP RES 150k 1 16W 5 RMC1 16S 154JTH J24189051 1 A B5 R 1263 CHIP RES 150k 1 16W 5 RMC1 16S 154JTH J24189051 1 A B5 R 1264 CHIP RES 10k 1 16W 5 RMC1 16S 103JTH J24189037 1 A B6 R 1265 CHIP...

Page 34: ...CHIP RES 100 1 16W 5 RMC1 16S 101JTH J24189013 1 A B7 R 1345 CHIP RES 1k 1 16W 5 RMC1 16S 102JTH J24189025 1 A B7 R 1346 CHIP RES 1k 1 16W 5 RMC1 16S 102JTH J24189025 1 A B7 R 1347 CHIP RES 47k 1 16W...

Page 35: ...189001 1 A D4 R 1419 CHIP RES 1k 1 16W 5 RMC1 16S 102JTH J24189025 1 B g3 R 1420 CHIP RES 1k 1 16W 5 RMC1 16S 102JTH J24189025 1 B c2 R 1421 CHIP RES 330k 1 16W 5 RMC1 16S 334JTH J24189055 1 B g3 R 14...

Page 36: ...H J24189017 1 B e3 R 1440 CHIP RES 220 1 16W 5 RMC1 16S 221JTH J24189017 1 B e4 R 1441 CHIP RES 22k 1 16W 5 RMC1 16S 223JTH J24189041 1 B f4 R 1442 CHIP RES 4 7k 1 16W 5 RMC1 16S 472JTH J24189033 1 B...

Page 37: ...P J24275221 1 A C3 R 1475 CHIP RES 4 7k 1 16W 5 RMC1 16S 472JTH J24189033 USA A2 1 A C2 R 1475 CHIP RES 4 7k 1 16W 5 RMC1 16S 472JTH J24189033 VER A1 1 A C2 R 1475 CHIP RES 4 7k 1 16W 5 RMC1 16S 472JT...

Page 38: ...J24189061 1 B h3 R 1500 CHIP RES 1k 1 16W 5 RMC1 16S 102JTH J24189025 1 B g7 R 1504 CHIP RES 47 1 16W 5 RMC1 16S 470JTH J24189009 1 B c3 R 1505 CHIP RES 1M 1 16W 5 RMC1 16S 105JTH J24189061 1 A F3 R 1...

Page 39: ...G 1 PANEL Unit Circuit Diagram 1 58 V 5 00 V DIM 1 7 26 V DIM OFF 8 45 V DIM 1 4 36 V DIM OFF 0 V 5 00 V 3 15 V 8 68 V 3 57 V 8 90 V...

Page 40: ...11 2014 M38223M4M Q2001 LC75821E Q2002 NJM2904V Q2011 NJM78L05 8C Q2003 DTA144EE 16 Q2012 DTC144EE 26 Q2005 2SA1774 FR Q2004 2SB1132 BA Q2006 Parts Layout Side B a b c d e f g h i 1 2 3 A B C D E F G...

Page 41: ...AP 0 01uF 16V B GRM36B103K16PT K22128804 1 B e2 C 2032 CHIP CAP 0 001uF 50V B GRM36B102K50PT K22178809 1 B e2 C 2033 CHIP CAP 0 01uF 16V B GRM36B103K16PT K22128804 1 B d2 C 2034 CHIP CAP 100pF 50V CH...

Page 42: ...TH J24189053 1 B d2 R 2033 CHIP RES 33k 1 16W 5 RMC1 16S 333JTH J24189043 1 B d2 R 2034 CHIP RES 100k 1 16W 5 RMC1 16S 104JTH J24189049 1 B e2 R 2035 CHIP RES 68k 1 16W 5 RMC1 16S 683JTH J24189047 1 B...

Page 43: ...CHIP RES 47k 1 16W 5 RMC1 16S 473JTH J24189045 1 B b2 R 2088 CHIP RES 100 1 16W 5 RMC1 16S 101JTH J24189013 1 B a2 R 2089 CHIP RES 10k 1 16W 5 RMC1 16S 103JTH J24189037 1 B b3 R 2090 CHIP RES 100k 1 1...

Page 44: ...G 6 Parts List REF DESCRIPTION VALUE V W TOL MFR S DESIG VXSTD P N VERS LOT SIDE LAY ADR PANEL Unit Note...

Page 45: ...PTION VALUE V W TOL MFR S DESIG VXSTD P N VERS LOT SIDE LAY ADR Side A SideB Parts List PCB with Components CB2350001 Printed Circuit Board AH016M000 FR0111900 1 J 3001 CONNECTOR NTC 623PCBL6 B P10911...

Page 46: ...H 2 Note CH Unit...

Page 47: ......

Page 48: ...Copyright 2003 VERTEX STANDARD CO LTD All rights reserved No portion of this manual may be reproduced without the permission of VERTEX STANDARD CO LTD...

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