Standard Horizon HX850S Service Manual
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Standard Horizon HX850S Service Manual

Standard Horizon HX850S Service Manual

Floating marine transceiver with gps
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Floating Marine Transceiver with GPS
HX850S
SERVICE MANUAL
EM031N90B
1

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Summary of Contents for Standard Horizon HX850S

  • Page 1 Floating Marine Transceiver with GPS HX850S SERVICE MANUAL EM031N90B...

  • Page 2: Specifications

    Specifications General Frequency Range: TX: 156.025 MHz - 157.425 MHz RX: 156.050 MHz - 163.275MHz Channel Spacing: 25 kHz Frequency Stability: ±10 ppm (–4 °F to +140 °F [–20 °C to +60 °C]) Emission Type: 16K0G3E for Voice, 16K0G2B for DSC 50 Ω...

  • Page 3: Exploded View & Miscellaneous Parts

    Exploded View & Miscellaneous Parts RA1001800 RA057720A HOLDER (DISTRESS) LIGHT GUIDE (LED) RA0995700 RA040160A RUBBER KNOB (DISTRESS) O RING (3.6X0.8) RA0995600 CP9195001 COVER (DISTRESS) FRONT PANEL ASSY RA046760A O RING (ANT) RA0999400 HOLDER (PTT) RA0577900 (Lot. 1 ~ 5) RA1087000 (Lot. 6 ~) RA0992500 KNOB SCREW (SP/MIC) RUBBER KNOB (PTT)
  • Page 4 Exploded View & Miscellaneous Parts Note...
  • Page 5 Block Diagram...
  • Page 6 Connection Diagram Note...

  • Page 7: Circuit Description

    Circuit Description 1. Receive Signal Path 3. Squelch Control Incoming RF from the antenna jack is delivered to the When no carrier received, noise at the output of the de- Main Unit and passes through a low-pass filter consist- tector stage in Q1031 (NJM2591V) passes through a ing of coils L1001, L1002, &...

  • Page 8: Automatic Transmit Power Control

    Circuit Description 4-1 Automatic Transmit Power Control The 12.5 kHz signal from the programmable divider (de- rived from the VCO) and that derived from the refer- Current from the final amplifier Q1009 (RD09MUS2) is ence oscillator are applied to the phase detector section sampled by C1009 and C1020, and rectified by D1003 of Q1026 (LV2105V), which produces a pulsed output (RB751F).

  • Page 9: Miscellaneous Circuits

    Circuit Description 7. 1050 Hz Weather Alert Decoder A portion of the signal from an FM IF subsystem IC Q1031 (NJM2591V) passes through a low-pass filter Q1037 (2SC4617-R) to the amplifier Q1038 (2SC4617- R). The amplified signal is delivered to the Schmitt In- verter IC Q1016 (SN74LVC3G14DCT) to obtain the weather alert tone pulse.
  • Page 10 Circuit Description Note...

  • Page 11: Required Test Equipment

    Alignment The HX850S has been carefully aligned at the factory Required Test Equipment for the specified performance across the VHF Marine RF Signal Generator with calibrated output level at band. 200 MHz Deviation Meter (linear detector) Realignment should therefore not be necessary except AF Millivoltmeter in the event of a component failure.

  • Page 12: Before Alignment

    PLL Reference Frequency Align- ter the Alignment Mode. ment Mode. Click the left mouse button on the [ Connect ] button of the HX850S Alignment Pro- gram. RF Signal Generator RF Sampling...

  • Page 13: Transmitter Power Output

    Alignment 01: Transmitter Maximum Output Power 03: Transmitter Power Output (High) Click the left mouse button on the [ 01: Max Power ] Click the left mouse button on the [ 03: High Power ] button. The transceiver now is in the Transmitter button.

  • Page 14: Transmitter Modulation

    Alignment 05: Transmitter Power Output (Mid1) 07: Transmitter Modulation Click the left mouse button on the [ 05: Mid1 Power ] Set the AF Generator output to 200 mV rms @ 1 kHz button. The transceiver now is in the Transmitter tone.

  • Page 15: Squelch Threshold Adjustment

    Alignment 08: Squelch Threshold Adjustment 10: CH70 Squelch Threshold Adjustment Set the RF signal generator output to channel fre- Set the RF signal generator output to 156.525 MHz, quency, at a level of –8 dBμ with ±3.0 kHz deviation at a level of –5 dBμ with ±3.0 kHz deviation with a 1 with a 1 kHz audio tone.

  • Page 16: Exit From 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 HX850S Alignment Program.
  • Page 17 MAIN Unit Circuit Diagram RX: 4.0 V RX: 3.1 V RX: 2.4 V RX: 2.4 V RX: 0.7 V RX: 2.3 V RX: 3.3 V RX: 4.0 V RX: 4.5 V RX: 0.8 V RX: 0.9 V RX: 0.7 V RX: 0.1 V RX: 2.3 V RX: 3.6 V...
  • Page 18 MAIN Unit Note...
  • Page 19 MAIN Unit Parts Layout (Side A) LM2904PWR CD4066BPWR 2SC4617 (BR) DTC143ZE (E23) UMD5N IMN10 (N10) VMZ6.8NT2L (Q1004) (Q1034) (Q1041, 1046) (Q1027) (Q1013) (D1025) (D1029) LM2902PWR FMMTL618 (Q1003) (Q1019)
  • Page 20 MAIN Unit Parts Layout (Side B) UPD78F1167GC BU2502FS SN74LVC3G14DCTR 2SA1774 (FR) 2SC4617 (BR) 3SK294 (UV) RD01MUS1 DTC144TE (96) RT1N441U (N3) S-812C33AUA UMD5N DA221 (K) (Q1032) (Q1030) (Q1006) (Q1021, 1040, (Q1017, 1022, 1023, (Q1018) (Q1015) (Q1035) (Q1014, 1016, 1039) (Q1007) (Q1011, 1012) (D1024, 1026, 1043) 1033, 1037, 1038)
  • Page 21 MAIN Unit Parts List DESCRIPTION VALUE TOL. MFR'S DESIG VXSTD P/N VERS. SIDE LAY ADR PCB with Components CP9190001 Printed Circuit Board AM031N000 FR0178700 C 1001 CHIP CAP. 0.001uF GRM155B11H102KA01D K22178809 C 1003 CHIP CAP. 0.1uF GRM155B11A104KA01D K22108802 C 1004 CHIP CAP.

  • Page 22: Parts List

    MAIN Unit Parts List DESCRIPTION VALUE TOL. MFR'S DESIG VXSTD P/N VERS. SIDE LAY ADR C 1085 CHIP TA.CAP. 0.1uF TMCP1D104MTRF K78130067 C 1086 CHIP CAP. 0.001uF GRM155B11H102KA01D K22178809 C 1088 CHIP CAP. 0.1uF GRM155B11A104KA01D K22108802 C 1089 CHIP CAP. 15pF TMK105CH150J-F K22148218...
  • Page 23 MAIN Unit Parts List DESCRIPTION VALUE TOL. MFR'S DESIG VXSTD P/N VERS. SIDE LAY ADR C 1171 CHIP CAP. 27pF GRM1552C1H270JZ01D K22178222 C 1172 CHIP CAP. GRM188F11A105ZA01D K22105001 C 1173 CHIP CAP. GRM188F11A105ZA01D K22105001 C 1174 CHIP CAP. 22pF UMK105CH220JV-F K22178266 C 1175 CHIP CAP.
  • Page 24 MAIN Unit Parts List DESCRIPTION VALUE TOL. MFR'S DESIG VXSTD P/N VERS. SIDE LAY ADR C 1248 CHIP CAP. 0.1uF GRM155B11A104KA01D K22108802 C 1250 CHIP CAP. 0.001uF GRM155B11H102KA01D K22178809 C 1253 CHIP CAP. 0.1uF GRM155B11A104KA01D K22108802 C 1255 CHIP CAP. 0.0027uF UMK105B272KW-F K22178834...
  • Page 25 MAIN Unit Parts List DESCRIPTION VALUE TOL. MFR'S DESIG VXSTD P/N VERS. SIDE LAY ADR D 1027 DIODE DA221 TL G2070178 D 1028 DIODE 1SS400 TE61 G2070634 D 1029 DIODE VMZ6.8NT2L G2071222 D 1030 DIODE RD5.1UMB1-T1 G2070538 D 1031 DIODE RB521S-30 TE61 G2070642 D 1033...
  • Page 26 MAIN Unit Parts List DESCRIPTION VALUE TOL. MFR'S DESIG VXSTD P/N VERS. SIDE LAY ADR Q 1014 TRANSISTOR DTC144EE TL G3070075 Q 1015 RD01MUS1-T113 G3070321 Q 1016 TRANSISTOR RT1N441U-T11-1 G3070247 Q 1016 TRANSISTOR DTC144EE TL G3070075 Q 1017 TRANSISTOR 2SC4617 TL R G3346178R Q 1018 3SK294(TE85L)
  • Page 27 MAIN Unit Parts List DESCRIPTION VALUE TOL. MFR'S DESIG VXSTD P/N VERS. SIDE LAY ADR R 1043 CHIP RES. 4.7k 1/16W RMC1/16S 472JTH J24189033 R 1044 CHIP RES. 1/16W RMC1/16S 271JTH J24189018 R 1045 CHIP RES. 1/16W RMC1/16S 220JTH J24189005 R 1046 CHIP RES.
  • Page 28 MAIN Unit Parts List DESCRIPTION VALUE TOL. MFR'S DESIG VXSTD P/N VERS. SIDE LAY ADR R 1122 CHIP RES. 1/16W RMC1/16S JPTH J24189070 R 1123 CHIP RES. 150k 1/16W RMC1/16S 154JTH J24189051 R 1124 CHIP RES. 1/16W RMC1/16S 220JTH J24189005 R 1125 CHIP RES.
  • Page 29 MAIN Unit Parts List DESCRIPTION VALUE TOL. MFR'S DESIG VXSTD P/N VERS. SIDE LAY ADR R 1203 CHIP RES. 1/16W RMC1/16S 101JTH J24189013 R 1204 CHIP RES. 1/16W RMC1/16S 101JTH J24189013 R 1205 CHIP RES. 1/16W RMC1/16S 183JTH J24189040 R 1206 CHIP RES.
  • Page 30 MAIN Unit Note...

  • Page 31: Charger Cradle

    CD-38 Charger Cradle Exploded View RA0996900 CASE (CHARGER) T9207458 WIRE ASSY CHARGER UNIT : When removing the Charger Unit from the Case, gently pull on the charger unit while pushing the three charging terminals from the outside of the case. RA0997200 BOTTOM PLATE Ref.

  • Page 32: Parts Layout

    CD-38 Charger Cradle Parts Layout (Side A) (Side B) NJM2904V DTA114EUA 2SC4617 (BR) (Q3001) (Q3009) (Q3004) NJM2360AM DTC114TE (04) RT1N241M (N2) (Q3007) (Q3002, 3005) (Q3003, 3008)
  • Page 33 CD-38 Charger Cradle Parts List DESCRIPTION VALUE TOL. MFR'S DESIG VXSTD P/N VERS. SIDE LAY ADR Printed Circuit Board AAF94X000 FR0180800 C 3001 CHIP CAP. 0.1uF GRM188B11C104KA01D K22124805 C 3002 CHIP TA.CAP. 10uF TEESVA1C106M8R K78120077 C 3003 CHIP CAP. 0.1uF GRM21BB11E104KA01L K22140811 C 3004...
  • Page 34 © 2008 VERTEX STANDARD CO., LTD. All rights reserved. Marine Division of VERTEX STANDARD No portion of this manual US Headquarters may be reproduced 10900 Walker Street, Cypress, CA 90630, U.S.A. without the permission of VERTEX STANDARD CO., LTD.

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