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Standard Horizon HX750S Service Manual
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Standard Horizon HX750S Service Manual

Standard Horizon HX750S Service Manual

Floating marine transceiver, floating marine transceiver with bluetooth
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Floating Marine Transceiver
HX750S
Floating Marine Transceiver with Bluetooth
®
HX760S
SERVICE MANUAL
HX750S
HX760S
EM032N90B
1

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Summary of Contents for Standard Horizon HX750S

  • Page 1 Floating Marine Transceiver HX750S Floating Marine Transceiver with Bluetooth ® HX760S SERVICE MANUAL HX750S HX760S EM032N90B...
  • Page 2 TIA/EIA-603. Important Note The HX750S and HX760S 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 appa- ratus. The solder stated above utilizes the alloy composition required for compliance with the lead-free specifi-...
  • Page 3 Specifications (HX760S) General Frequency Ranges: TX: 156.025 MHz - 157.425 MHz RX: 156.050 MHz - 163.275 MHz Channel Spacing: 25 kHz Frequency Stability: ±10 ppm (–4 °F to +140 °F [–20 °C to +60 °C]) Emission Type: 16K0G3E 50 Ω Antenna Impedance: Supply Voltage: 7.4V DC, Negative Ground (Battery Terminal)
  • Page 4 Exploded View & Miscellaneous Parts RA0399800 (Lot. 1 ~ 7) RA040160A RA039980A (Lot. 8 ~) O RING (3.6X0.8) LIGHT GUIDE (LED) CP9170001 (HX750S) CP9170002 (HX760S) FRONT PANEL ASSY RA046760A O RING (ANT) RA0999400 RA0577900 (Lot. 1 ~ 5) HOLDER (PTT) RA1087000 (Lot.
  • Page 5 Block Diagram (HX750S)
  • Page 6 Block Diagram (HX760S)
  • Page 7 Circuit Description 1-3. Squelch Control 1. Receiver Signal Flow Signal components in the neighborhood of 15 kHz con- 1-1. Front-end RF Amplifier tained in the discriminator output pass through an ac- Received VHF bands signals pass through the low-pass tive band-pass filter composed of resistors R1211, R1213, filter/high-pass filter circuit, T/R switch circuit composed &...
  • Page 8 Circuit Description 2-2. Modulation 3. PLL Frequency Synthesizer The speech input from the built-in microphone MC1001 PLL IC Q1019 consists of a data shift register, reference (CZ034DP363) or external jack J1001 is pre-emphasized frequency divider, phase comparator, charge pump, in- by C1014 and R1021, and processed by microphone am- termittent operation circuit, and band selector switch.
  • Page 9 Alignment The HX750S/HX760S has been carefully aligned at the Required Test Equipment factory for the specified performance across the land RF Signal Generator with calibrated output level at mobile band. 200 MHz Frequency Counter: >0.1 ppm accuracy at 200 MHz...
  • Page 10 Alignment PLL Section Receiver Section PLL Reference Frequency RF Squelch Hysteresis Adjustment Press and hold in the PTT, [ SQL ] , [ ] , and [ ] keys Connect the wattmeter, dummy load, and frequency counter to the antenna jack. while turn the transceiver on to enter the alignment Set the transceiver to CH16 (156.800 MHz) then turn mode.
  • Page 11 Alignment Noise Squelch Hysteresis Adjustment TX Power Adjustment (Hi Power) Press the [ ] or [ ] key to select Connect the wattmeter and dummy load to the an- HS n xx HS n xx”. HS n xx the display to “HS n xx HS n xx tenna jack.
  • Page 12 Alignment TX Power Adjustment (Low Power) Connect the wattmeter and dummy load to the an- tenna jack. Set the transceiver to CH16 (156.800 MHz) with “Low” power mode, then turn the transceiver off. Press and hold in the PTT, [ SQL ] , [ ] , and [ ] keys while turn the transceiver on to enter the alignment mode.
  • Page 13 MAIN Unit (Lot. 1 ~ 6) Circuit Diagram 3.3 V 2.0 V TX: 1.2 V TX: 1.9 V RX: 4.5 V RX: 3.0 V 2.1 V TX: 4.3 V TX: 3.4 V TX: 1.7 V RX: 0 V 4.1 V RX: 1.3 V RX: 0 V TX: 0 V...
  • Page 14 MAIN Unit (Lot. 1 ~ 6) Note...
  • Page 15 MAIN Unit (Lot. 1 ~ 6) Parts Layout (Side A) LC87F7BC8A BR24L64F 2SC4617 (BR) S-80835CNMC UMG2N (G2) UMD5N DA221 (K) RB715F (Q1017) (Q1014) (Q1027, 1029) (Q1032) (Q1010) (Q1013) (D1025) (D1039)
  • Page 16 MAIN Unit (Lot. 1 ~ 6) Parts Layout (Side B) LV2105V BU2502FS LM2904PWR 2SA1774 (FR) 2SC4617 (BR) 3SK318 (YB) RD01MUS1 DTC144EE (26) S-812C35AUA UMD5N DA221 (K) (Q1019) (Q1018) (Q1046) (Q1002, 1012, (Q1005, 1015, (Q1035) (Q1033) (Q1011, 1026, (Q1031) (Q1006, 1041, (D1029, 1031, 1016, 1023, 1036) 1024, 1025)
  • Page 17 MAIN Unit (Lot. 7 ~) Circuit Diagram 3.3 V 2.0 V TX: 1.2 V TX: 1.9 V RX: 4.5 V RX: 3.0 V 2.1 V TX: 4.3 V TX: 3.4 V TX: 1.7 V RX: 0 V 4.1 V RX: 1.3 V RX: 0 V TX: 0 V RX: 4.5 V...
  • Page 18 MAIN Unit (Lot. 7 ~) Note...
  • Page 19 MAIN Unit (Lot. 7 ~) Parts Layout (Side A) LC87F7BC8A BR24L64F 2SC4617 (BR) S-80835CNMC UMG2N (G2) UMD5N DA221 (K) RB715F (Q1017) (Q1014) (Q1027, 1029) (Q1032) (Q1010) (Q1013) (D1025) (D1039)
  • Page 20 MAIN Unit (Lot. 7 ~) Parts Layout (Side B) LV2105V BU2502FS LM2904PWR 2SA1774 (FR) 2SC4617 (BR) 3SK318 (YB) RD01MUS1 DTC144EE (26) S-812C35AUA UMD5N DA221 (K) (Q1019) (Q1018) (Q1046) (Q1002, 1012, (Q1005, 1015, (Q1035) (Q1033) (Q1011, 1026, (Q1031) (Q1006, 1041, (D1029, 1031, 1016, 1023, 1036) 1024, 1025) 1028, 1047)
  • Page 21 MAIN Unit Parts List DESCRIPTION VALUE TOL. MFR'S DESIG VXSTD P/N VERS. SIDE LAY ADR PCB with Components CS1990405 HX750S CS1990406 HX750S CS1990407 HX760S CS1990408 HX760S CS1990413 HX750S Printed Circuit Board AM032N000 FR017590E FR017590F C 1001 CHIP CAP. 0.001uF GRM155B11H102KA01D...
  • Page 22 MAIN Unit Parts List DESCRIPTION VALUE TOL. MFR'S DESIG VXSTD P/N VERS. SIDE LAY ADR C 1066 CHIP CAP. 0.001uF GRM155B11H102KA01D K22178809 C 1067 CHIP CAP. 0.01uF GRM155B11E103KA01D K22148834 C 1068 CHIP CAP. 0.001uF GRM155B11H102KA01D K22178809 C 1069 CHIP CAP. GRM1554C1H2R0CZ01D K22178204 C 1070...
  • Page 23 MAIN Unit Parts List DESCRIPTION VALUE TOL. MFR'S DESIG VXSTD P/N VERS. SIDE LAY ADR C 1142 CHIP CAP. 0.001uF GRM155B11H102KA01D K22178809 C 1143 CHIP CAP. 0.1uF GRM155B11A104KA01D K22108802 C 1144 CHIP CAP. 10pF GRM1552C1H100JZ01D K22178212 C 1145 CHIP CAP. 0.001uF GRM155B11H102KA01D K22178809...
  • Page 24 MAIN Unit Parts List DESCRIPTION VALUE TOL. MFR'S DESIG VXSTD P/N VERS. SIDE LAY ADR C 1215 CHIP CAP. 0.001uF GRM155B11H102KA01D K22178809 C 1217 CHIP CAP. 0.001uF GRM155B11H102KA01D K22178809 C 1218 CHIP CAP. 6.3V GRM155B30J105KE18D K22088803 C 1219 CHIP CAP. GRM1552C1H5R0CZ01D K22178207 C 1220...
  • Page 25 MAIN Unit Parts List DESCRIPTION VALUE TOL. MFR'S DESIG VXSTD P/N VERS. SIDE LAY ADR FB1002 FERRITE BEADS BLM15BD102SN1D L9190133 FB1003 FERRITE BEADS BLM15BD102SN1D L9190133 FB1004 FERRITE BEADS BLM18PG330SN1D L9190141 J 1001 CONNECTOR MJC-046-C1-3.5-T P1091309 J 1002 CONNECTOR AXK6S40435J P0091415 HX760S J 1005 CONNECTOR...
  • Page 26 RMC1/16S 473JTH J24189045 R 1014 CHIP RES. 1/16W RMC1/16S 102JTH J24189025 HX760S R 1015 CHIP RES. 1/16W RMC1/16S JPTH J24189070 HX750S R 1016 CHIP RES. 100k 1/16W RMC1/16S 104JTH J24189049 R 1017 CHIP RES. 1/16W RMC1/16S 101JTH J24189013 R 1018 CHIP RES.
  • Page 27 MAIN Unit Parts List DESCRIPTION VALUE TOL. MFR'S DESIG VXSTD P/N VERS. SIDE LAY ADR R 1066 CHIP RES. 4.7k 1/16W 0.5% MCR01MZPD4701 J24189370 R 1067 CHIP RES. 1/16W RMC1/16S 103JTH J24189037 R 1068 CHIP RES. 3.9k 1/16W 0.5% MCR01MZPD3901 J24189369 R 1069 CHIP RES.
  • Page 28 MAIN Unit Parts List DESCRIPTION VALUE TOL. MFR'S DESIG VXSTD P/N VERS. SIDE LAY ADR R 1137 CHIP RES. 100k 1/16W 0.5% MCR01MZPD1003 J24189386 R 1138 CHIP RES. 1/16W RMC1/16S 471JTH J24189021 R 1139 CHIP RES. 330k 1/16W 0.5% MCR01MZPD3303 J24189330 R 1140 CHIP RES.
  • Page 29 MAIN Unit Parts List DESCRIPTION VALUE TOL. MFR'S DESIG VXSTD P/N VERS. SIDE LAY ADR R 1210 CHIP RES. 1/8W RMC1/8T 000J J24215000 R 1211 CHIP RES. 6.8k 1/16W RMC1/16S 682JTH J24189035 R 1212 CHIP RES. 1/16W RMC1/16S 470JTH J24189009 R 1213 CHIP RES.
  • Page 30 MAIN Unit Note...
  • Page 31 CD-39 Charger Cradle Exploded View RA0996900 CASE (CHARGER) 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 CD-39 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-39 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 CD-40 Charger Cradle (HX760S Accessory) Exploded View RA1027100 TOP CASE P0091358 CONNECTOR RA1027400 TERMINAL (L) RA1027300 TERMINAL (R) RA1027200 BOTTOM CASE Ref. VXSTD P/N Description Qty. U24106020 BIND HEAD TAPTITE-B M2X6SUS U24110027 BIND HEAD TAPTITE-B 2X10SUS B...
  • Page 35 Note...
  • Page 36 © 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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