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SERVICE MANUAL

25 Watt VHF/FM Marine Transceiver

QUEST-X GX1500S

EM017N90A

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Summary of Contents for Quest-X GX1500S

Page 1: ...1 SERVICE MANUAL 25 Watt VHF FM Marine Transceiver QUEST X GX1500S EM017N90A...

Page 2: ...m and Noise 50 dB RECEIVER Frequency Range 156 050 to 163 275 MHz Sensitivity 12 dB SINAD 0 25 V 12 dB SINAD 70 CH Receiver 0 3 V Squelch Sensitivity Threshold 0 2 V Modulation Acceptance Bandwidth 7...

Page 3: ...9207247 WHITE T9207249 BLACK WIRE ASSY CURL CABLE RA0746700 O RING RA0746800 RUBBER PACKING RA0747100 WHITE RA0765100 BLACK HOOK CS1860001 WHITE CS1860002 BLACK FRONT PANEL ASSY w SPEAKER COVER ASSY D...

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

Page 5: ...5 Connection Diagram...

Page 6: ...6 Block Diagram...

Page 7: ...passing through a limiter amplifier the signal is demodulated by the FM detector Demodulated receive audio from the FM IF subsystem IC is amplified by Q1046 and Q1050 both 2SC4154E then the signal is...

Page 8: ...SUB RX 1st mixer Q1023 3SK131 Buffered output from the TX SUB VCO Q1025 2SK520 is amplified by Q1024 and Q1020 both 2SC5006 and bandpass filtered by coils L1021 L1022 and capacitors C1106 C1107 C1121...

Page 9: ...4FGPGP on the CNTL Unit Circuit Description MPU Operation is controlled by 16 bit MPU IC Q2003 M30624FGPGP The system clock uses a 14 74560 MHz crystal for a time base IC Q2002 PST597CN resets the MPU...

Page 10: ...10 Circuit Description Note...

Page 11: ...ng test equipment and thorough familiarity with its correct use is necessary for complete realignment Correction of problems caused by misalignment result ing from use of improper test equipment is no...

Page 12: ...tment Setup the test equipment as shown below Sub Receiver Transmitter VCV Adjustment Setup the test equipment as shown below GX1500S Frequency Counter 50 ohm Dummy Load Sampling Coupler ANT DC Voltme...

Page 13: ...r output to 1 Vrms at 100 Hz With the PTT switch pressed adjust VR1004 so that the maximum deviation is 4 4 kHz 0 1 kHz Release the PTT switch AF Signal Generator Deviation Meter 50 ohm Dummy Load Sam...

Page 14: ...ator output to 156 800 MHz at a level of 10dB V 3 0 kHz deviation with a 1 kHz audio tone Press the DW IC key Press the ENT key to save the new setting Press the SCAN MEM key to re call theAlignment I...

Page 15: ...9 V RX 2 30 V RX 6 86 V RX 7 50 V RX 0 25 V RX 1 00 V RX 7 70 V RX 5 40 V RX 0 30 V RX 5 30 V RX 0 50 V RX 5 60 V RX 5 50 V RX 3 00 V RX 2 43 V RX 5 30 V 4 30 V 4 60 V 1 76 V 1 57 V 4 60 V 5 00 V TX H...

Page 16: ...16 MAIN Unit Note...

Page 17: ...1042 2SC5006 24 Q1014 1024 1032 2SK508 K52 Q1025 2SK520 K41 Q1035 CD4053BPWR Q1026 TA31136FN Q1039 1043 TB31202FNG Q1033 CD4066BPWR Q1036 LM2902PWR Q1051 1052 DTA144EE 16 Q1001 1034 LA4425A Q1048 LM2...

Page 18: ...1 2SB1301 ZQ Q1011 1018 2SC4154 LE Q1021 1030 1044 1046 1049 1050 2SC4400 RT4 Q1028 1037 2SC5006 24 Q1020 NJM2211M Q1041 1045 1SS321 F9 Q1001 DAN235U M Q1007 RT1N441U N3 Q1004 1009 1010 1012 1027 1047...

Page 19: ...48 CHIP CAP 0 22uF 10V B GRM188B11A224KA01D K22104801 1 A E2 C 1051 CHIP CAP 0 01uF 50V B GRM188B11H103KA01D K22174823 1 B d2 C 1052 CHIP CAP 0 001uF 50V B GRM188B11H102KA01D K22174821 1 B d2 C 1053 C...

Page 20: ...P CAP 0 1uF 16V B GRM188B11C104KA01D K22124805 1 A F4 C 1134 CHIP TA CAP 10uF 10V TEMSVA1A106M 8R K78100028 1 B c3 C 1135 CHIP CAP 0 0056uF 50V B GRM188B11H562KA01D K22174818 1 A F3 C 1136 CHIP CAP 1u...

Page 21: ...HIP CAP 0 001uF 50V B GRM188B11H102KA01D K22174821 1 B f5 C 1220 CHIP CAP 10pF 50V CH GRM1882C1H100JA01D K22174211 1 B g3 C 1221 CHIP TA CAP 10uF 10V TEMSVA1A106M 8R K78100028 1 B f5 C 1222 CHIP CAP 5...

Page 22: ...1uF 16V B GRM188B11C104KA01D K22124805 1 A D6 C 1334 CHIP CAP 0 01uF 50V B GRM188B11H103KA01D K22174823 1 B f3 C 1336 AL ELECTRO CAP 47uF 16V RE2 16V470MMA K40129054 1 A D2 C 1337 CHIP CAP 0 001uF 50V...

Page 23: ...1 B e4 C 1405 CHIP CAP 0 1uF 16V B GRM188B11C104KA01D K22124805 1 B e4 C 1406 CHIP CAP 0 1uF 16V B GRM188B11C104KA01D K22124805 1 B e4 C 1407 CHIP CAP 1uF 10V F GRM188F11A105ZA01D K22105001 1 B e4 C 1...

Page 24: ...FC 0 22uH HK1608 R22J T L1690940 1 A C5 L 1040 M RFC 0 082uH HK1608 82NJ T L1690527 1 B h5 L 1041 M RFC 10uH LK2125 100K T L1690331 1 A B5 L 1042 M RFC 0 068uH HK1608 68NJ T L1690526 1 B g5 L 1043 M R...

Page 25: ...MC1 16 102JATP J24185102 1 A F1 R 1015 CHIP RES 120 1 16W 5 RMC1 16 121JATP J24185121 1 A F1 R 1016 CHIP RES 4 7k 1 16W 5 RMC1 16 472JATP J24185472 1 A E1 R 1017 CHIP RES 470 1 16W 5 RMC1 16 471JATP J...

Page 26: ...94 CHIP RES 330k 1 16W 5 RMC1 16 334JATP J24185334 1 A F3 R 1095 CHIP RES 2 2k 1 16W 5 RMC1 16 222JATP J24185222 1 A F3 R 1096 CHIP RES 0 1 16W 5 RMC1 16 000JATP J24185000 1 A F3 R 1097 CHIP RES 1M 1...

Page 27: ...C1 16 105JATP J24185105 1 B c4 R 1177 CHIP RES 1M 1 16W 5 RMC1 16 105JATP J24185105 1 B c4 R 1178 CHIP RES 1M 1 16W 5 RMC1 16 105JATP J24185105 1 B c4 R 1179 CHIP RES 1M 1 16W 5 RMC1 16 105JATP J24185...

Page 28: ...P RES 10k 1 16W 5 RMC1 16 103JATP J24185103 1 A E6 R 1253 CHIP RES 100k 1 16W 5 RMC1 16 104JATP J24185104 1 A E6 R 1254 CHIP RES 22k 1 16W 5 RMC1 16 223JATP J24185223 1 B f3 R 1255 CHIP RES 22k 1 16W...

Page 29: ...Hz DSX531S 29 950MHZ H0103316 1 A E3 X 1002 XTAL TOP B 21 85MHz 21 85000MHZ H0103270 1 A D3 XF1001 XTAL FILTER UM 5 22 300MHZ H1102393 1 A B4 XF1002 XTAL FILTER UM 5 22 300MHZ H1102393 1 A C4 XF1003 X...

Page 30: ...30 MAIN Unit Note...

Page 31: ...KEY BEEP 0 5 Vp p 3 sec 2 47 V 13 74 V 13 80 V 4 90 V CONTRAST Min 1 50 V Max 3 24 V CONTRAST Min 0 90 V Max 2 64 V CONTRAST 15 3 97 V 2 94 V 0 40 V 0 63 V 1 66 V DIMMER OFF 0 V DIMMER ON 5 65 V 8 19...

Page 32: ...32 CNTL Unit Note...

Page 33: ...33 CNTL Unit Parts Layout Side A B A D C F E H G I 1 3 5 2 4 HD66712SA Q2008 COMMON SEGMENT LCD DS2001 J 2SC4154 LE Q2007 SN74HC14APW Q2014...

Page 34: ...Parts Layout Side B b a d c f e h g i 1 3 5 2 4 2SA1602A MF Q2009 2011 2SC4154 LE Q2005 2010 2012 HZM27WA 27A D2010 2011 AT24C128N Q2004 CPH6102 AB Q2006 PST597CNR 7C Q2002 M30620FCAGP Q2003 j UA78L0...

Page 35: ...M188B11C104KA01D K22124805 1 B b4 C 2067 CHIP CAP 0 01uF 50V B GRM188B11H103KA01D K22174823 1 B b4 C 2069 CHIP CAP 0 01uF 50V B GRM188B11H103KA01D K22174823 1 B b5 C 2072 CHIP CAP 0 01uF 50V B GRM188B...

Page 36: ...1 16 101JATP J24185101 1 B e4 R 2034 CHIP RES 100 1 16W 5 RMC1 16 101JATP J24185101 1 B f4 R 2035 CHIP RES 100 1 16W 5 RMC1 16 101JATP J24185101 1 B e4 R 2036 CHIP RES 10k 1 16W 5 RMC1 16 103JATP J241...

Page 37: ...2090 CHIP RES 8 2k 1 16W 5 RMC1 16 822JATP J24185822 1 A C3 R 2091 CHIP RES 3 3k 1 16W 5 RMC1 16 332JATP J24185332 1 A C3 R 2092 CHIP RES 3 3k 1 16W 5 RMC1 16 332JATP J24185332 1 A C2 R 2093 CHIP RES...

Page 38: ...38 CNTL Unit Note...

Page 39: ...ALUE V W TOL MFR S DESIG VXSTD P N VERS LOT SIDE LAY ADR Side B Side A PCB with Components CB3335001 Printed Circuit Board AM017N000 FR0139300 1 JP3001 WIRE ASSY AM017N VR T9207266 1 A VR3001 POT RK09...

Page 40: ...1 A B1 JP4001 WIRE ASSY AM017N RAM T9207268 1 A A1 R 4001 CHIP RES 0 1 10W 5 RMC1 10T 000J J24205000 1 A A2 R 4002 CHIP RES 0 1 10W 5 RMC1 10T 000J J24205000 1 A A1 R 4003 CHIP RES 0 1 10W 5 RMC1 10T...

Page 41: ...41 MIC Unit Circuit Diagram...

Page 42: ...Board AM016N000 FR0141200 1 C 5003 CHIP CAP 0 001uF 50V B GRM188B11H102KA01D K22174809 1 A B2 MC5001 MIC ELEMENT EM 100PT M3290029 1 A A2 R 5001 CHIP RES 6 8k 1 16W 5 RMC1 16 682JATP J24185682 1 A B2...

Page 43: ...43...

Page 44: ...44 Copyright 2006 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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