background image

5

Block Diagram

Summary of Contents for HX851

Page 1: ...1 SERVICE MANUAL Floating Marine Transceiver with GPS HX851 EM031N95C 16 9...

Page 2: ...dance 2 k Receiver Circuit Type Double Conversion Superheterodyne Intermediate Frequencies 1st 47 25 MHz 2nd 450 kHz Sensitivity 0 25 V for 12 dB SINAD Adjacent Channel Selectivity 70 dB typical Inter...

Page 3: ...1000700 HOLDER PLATE GPS RA1008000 DOUBLE FACE GPS Dubble sided tape RA099890A CHASSIS RA0919700 O RING 6X2 2 MAIN Unit RA0992100 MIC HOLDER RUBBER G6090187 LCD RA1002200 LIGHTGUIDE RA0992100 REFLECTO...

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

Page 5: ...5 Block Diagram...

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

Page 7: ...the D A IC Q1030 BU2502FS and audio mute switch Q1034 CD4066BPW to the au dio power amplifier Q1047 TDA2822L providing up to 700 mW of audio power to the 16 ohm loudspeaker 3 Squelch Control When no...

Page 8: ...cy so as to produce a 12 5 kHz derivative of the current VCO frequency Meanwhile the reference divider sections of Q1026 LV2105V divides the crystal X1001 11 7 MHz by 936 to produce the 12 5 kHz loops...

Page 9: ...Hz crystal X1002 for the system clock This micropro cessor includes a reset circuit 8 2 EEPROM The EEPROM Q1036 BR24L64F W retains TX and RX data for all memory channels prescaler dividing IF fre quen...

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

Page 11: ...complete realignment Correction of problems caused by misalignment resulting from use of improper test equipment is not covered under the warranty poli cy While most steps do not require all of the eq...

Page 12: ...erence Frequency Click the left mouse button on the 00 M Ref but ton The transceiver now is in the PLL Reference Fre quency Alignment Mode Click the left mouse button on the PTT On button Click the bu...

Page 13: ...e 03 High Power button to exit the the Transmitter High Power Output Alignment Mode Alignment 02 Transmitter Power Output Click the left mouse button on the 02 Po Control button The transceiver now is...

Page 14: ...t Alignment Mode Click the left mouse button on the PTT On button Click the button or Move the Slide Bar if necessary until the Wattmeter displays 0 8 W 0 1 W Click the left mouse button on the PTT Of...

Page 15: ...de Press the Get key to read the Squelch Tight data Click the left mouse button on the 08 Tight button to exit the the Squelch Tight Alignment Mode 10 CH70 Squelch Threshold Adjustment Set the RF sign...

Page 16: ...the Alignment Mode Click the left mouse button on the Store and End button to save the new setting s and turn off the transceiver Click the left mouse button on the Exit Program button to close the H...

Page 17: ...2 4 V DIMMER OFF 6 1 V DIMMER HIGH 5 3 V DIMMER OFF 0 V DIMMER HIGH 2 3 V DIMMER OFF 0 V DIMMER HIGH 3 0 V RX 0 7 V RX 4 0 V TX 2 5 V 3 2 V 0 1 3 2 V 1 6 3 2 V RX 0 1 V RX 3 3 V RX 0 7 V RX 0 8 V RX...

Page 18: ...18 MAIN Unit Note...

Page 19: ...AIN Unit Parts Layout Side A B A D C F E G 1 3 2 4 H DTC143ZE E23 Q1027 LM2904PWR Q1004 2SC4617 BR Q1041 1046 FMMTL618 Q1019 I CD4066BPWR Q1034 LM2902PWR Q1003 UMD5N Q1013 IMN10 N10 D1025 VMZ6 8NT2L D...

Page 20: ...144TE 96 Q1035 BR24L64F Q1036 TDA2822D013TR Q1047 LV2105V Q1026 NJM2591V Q1031 DA221 K D1024 1026 1027 DAN235E D1023 RB715F D1003 LMV321IDCKR R3x Q1048 RT1N441U N3 Q1014 1016 1039 SN74LVC3G14DCTR Q100...

Page 21: ...AP 10uF 10V TEESVA1A106M8R K78100028 1 B b3 C 1041 CHIPTA CAP 68uF TEESVB20G686M8R K78060033 1 B a4 C 1042 CHIPCAP 47pF 25V CH TMK105CH470J F K22148230 1 B e2 C 1043 CHIPCAP 0 001uF 50V B GRM155B11H10...

Page 22: ...5B11E103KA01D K22148834 1 B b4 C 1122 CHIPCAP 5pF 25V CH TMK105CH050C F K22148209 1 B e2 C 1123 CHIPCAP 5pF 25V CH TMK105CH050C F K22148209 1 B d3 C 1126 CHIPCAP 4pF 25V CH TMK105CH040C F K22148208 1...

Page 23: ...0V B GRM155B11A104KA01D K22108802 1 B e2 C 1202 CHIPCAP 0 01uF 25V B GRM155B11E103KA01D K22148834 1 B c2 C 1203 CHIPCAP 0 0033uF 50V B UMK105B332KW F K22178835 1 B c2 C 1204 CHIPTA CAP 22uF 6 3V TEESV...

Page 24: ...0V CH GRM1552C1H470JZ01D K22178228 1 A H1 C 1284 CHIPCAP 0 001uF 50V B GRM155B11H102KA01D K22178809 1 B b2 C 1285 CHIPCAP 47pF 50V CH GRM1552C1H470JZ01D K22178228 1 A H3 C 1286 CHIPCAP 1uF 6 3V B GRM1...

Page 25: ...K6F10545YJ P0091423 1 B b1 J 1004 CONNECTOR F0501WR S 30PDB1 P1091351 1 A B2 J 1006 CONNECTOR MJC 046 C1 3 5 T P1091309 1 B h1 J 1007 SHIELDFINGER 3525 3100103 S5000226 1 A H1 J 1008 SHIELDFINGER 3525...

Page 26: ...5 1 B f1 Q 1033 TRANSISTOR 2SC4617 TL R G3346178R 1 B c1 Q 1034 IC CD4066BPWR G1093865 1 A G1 Q 1035 TRANSISTOR DTC144TE TL G3070280 1 Q 1036 IC R1EX24128ATAS0I AUSTRALIA 1 B d1 Q 1036 IC R1EX24128ATA...

Page 27: ...1 B e2 R 1050 CHIPRES 68 1 4W 5 RMC1 4 680JATP J24245680 1 A B3 R 1051 CHIPRES 100 1 16W 5 RMC1 16S 101JTH J24189013 1 B e3 R 1052 CHIPRES 2 2k 1 16W 5 RMC1 16S 222JTH J24189029 1 B f2 R 1053 CHIPRES...

Page 28: ...A B1 R 1130 CHIPRES 100k 1 16W 0 5 MCR01MZPD1003 J24189386 1 A H3 R 1131 CHIPRES 47k 1 16W 5 RMC1 16S 473JTH J24189045 1 A B1 R 1132 CHIPRES 47k 1 16W 5 RMC1 16S 473JTH J24189045 1 B d1 R 1133 CHIPRE...

Page 29: ...CHIPRES 2 2 1 4W 5 RMC1 4 2R2JATP J24245229 1 B g2 R 1210 CHIPRES 2 2k 1 16W 5 RMC1 16S 222JTH J24189029 1 A G2 R 1211 CHIPRES 1k 1 16W 5 RMC1 16S 102JTH J24189025 1 B h3 R 1212 CHIPRES 12k 1 16W 5 R...

Page 30: ...5 RMC1 16S 103JTH J24189037 EUROPE 1 A H3 R 1268 CHIPRES 10k 1 16W 5 RMC1 16S 103JTH J24189037 EXPORT 1 A H3 R 1268 CHIPRES 10k 1 16W 5 RMC1 16S 103JTH J24189037 UK 1 A H3 R 1268 CHIPRES 10k 1 16W 5 R...

Page 31: ...0 U24108020 Description BIND HEAD TAPTITE B M2X6SUS BIND HEAD TAPTITE B M2X8SUS Qty 2 2 When removing the Charger Unit from the Case gently pull on the charger unit while pushing the three charging te...

Page 32: ...32 CD 38 Charger Cradle Parts Layout 2SC4617 BR Q3004 NJM2360AM Q3007 NJM2904V Q3001 RT1N241M N2 Q3003 3008 DTA114EUA Q3009 DTC114TE 04 Q3002 3005 Side A Side B...

Page 33: ...E1 G1093076 1 Q 3008 TRANSISTOR RT1N241M T11 1 G3070249 1 Q 3009 TRANSISTOR DTA114EUA T106 G3070083 1 R 3001 CHIPRES 10k 1 16W 5 RMC1 16 103JATP J24185103 1 R 3002 CHIPRES 180k 1 16W 1 RMC1 16 184FTP...

Page 34: ...DARD CO LTD All rights reserved No portion of this manual may be reproduced without the permission of VERTEX STANDARD CO LTD Marine Division of VERTEX STANDARD US Headquarters 10900 Walker Street Cypr...

Reviews: