K6610334620PORTABLE TWO-WAY RADIO

VX-920/-970 S ERIES O PERATING M ANUAL 16 Key Version 4 Key Version Non-LCD Version VERTEX STANDARD CO., LTD.4-8-8 Nakameguro, Meguro-Ku, Tokyo 153-8644, JapanVERTEX STANDARDUS Headquarters10900 Walker Street, Cypress, CA 90630, U.S.A.YAESU EUROPE B.V.P.O. Box 75525, 1118 ZN Schiphol, The NetherlandsYAESU UK LTD.Unit 12, Sun Valley Business Park, Winnall CloseWinchester, Hampshire, SO23 0LB, U.K.VERTEX STANDARD HK LTD.Unit 5, 20/F., Seaview Centre, 139-141 Hoi Bun Road,Kwun Tong, Kowloon, Hong Kong Note.................................................................................. 2Warning! FCC RF Exposure Requirements ................... 3 Controls & Connectors (16-Key Version) ...................... 4 Controls & Connectors (4-Key Version) ........................ 5 Controls & Connectors (Non-LCD Version) .................. 6 LCD Icons & Indicators (16-Key & 4-Key Versions) ..... 7 Before Y ou Begin ............................................................ 8 Battery Pack Installation and Removal ....................... 8 Low Battery Indication ............................................... 8 Operation ......................................................................... 9 Preliminary Steps ........................................................ 9Operation Quick Start ................................................. 9 Advanced Operation ...................................................... 12 Programmable Key and Toggle Switch Functions .... 12Descriptipon of Operating Functions....................... 14 ARTS (Auto Range Transpond System) ....................... 22 DTMF Paging System ................................................... 22 User Set Mode (16-Key & 4-Key Versions) .................. 23 Optional Accessories .................................................... 24 C ONTENTS Congratulations! You now have at your fingertips a valuable communications tool-a VERTEX STANDARD two-way radio! Rugged, reliable and easy to use, your VERTEX STANDARD radio will keep you in constant touch with your colleagues for years to come, with negligible maintenance down-time.Please take a few minutes to read this manual carefully. The information presented here will allow you to derive maximumperformance from your radio, in case questions arise later on.We're glad you joined the VERTEX ST ANDARD team. Call on us anytime, because communications is our business. Let us help you get your message across.Notice!: There are no owner-serviceable parts inside the radio. All service jobs must be referred to an autho- rized VERTEX STANDARD Service Representative. Consult your Authorized VERTEX STANDARD Dealer for installation of optional accessories. VX-920/-970 S ERIES O PERATING M ANUAL 1 Important Notice for North American Users Regarding 406 MHz Guard Band The U.S. Coast Guard and National Oceanographic and Atmospheric Administration have requested thecooperation of the U.S. Federal Communications Commission in preserving the integrity of the protectedfrequency range 406.0 to 406.1 MHz, which is reserved for use by distress beacons. Do not attempt toprogram this apparatus, under any circumstances, for operation in the frequency range 406.0 - 406.1 MHzif the apparatus is to be used in or near North America.Warning - Frequency band 406 - 406.1 MHz is reserved for use ONLY as a distress beacon by theUS Coast Guard and NOAA. Under no circumstance should this frequency band be part of thepreprogrammed operating frequencies of this radio. N OTE
In order to maintain the specified water integrity performance, periodic maintenance is recommended.
Should the radio sustain a severe shock (e.g. if it is dropped), the water integrity may be compromised,requiring service. Should this occur, contact your Authorized Vertex Dealer or Vertex Standard USA, Inc. VX-920/-970 S ERIES O PERATING M ANUAL 2 W ARNING ! FCC RF E XPOSURE R EQUIREMENTS This Radio has been tested and complies with the Federal Communications Commission (FCC) RF exposurelimits for Occupational Use/Controlled exposure environment. In addition, it complies with the following Stan-dards and Guidelines:
FCC 96-326, Guidelines for Evaluating the Environmental Effects of Radio-Frequency Radiation.
FCC OET Bulletin 65 Edition 97-01 (1997) Supplement C, Evaluating Compliance with FCC Guidelines forHuman Exposure to Radio Frequency Electromagnetic Fields.
ANSI/IEEE C95.1-1992, IEEE Standard for Safety Levels with Respect to Human Exposure to RadioFrequency Electromagnetic Fields, 3 kHz to 300 GHz.
ANSI/IEEE C95.3-1992, IEEE Recommended Practice for the Measurement of Potentially Hazardous Elec-tromagnetic Fields - RF and Microwave. WARNING: This radio generates RF electromagnetic energy during transmit mode. This radio is designed for andclassified as Occupational Use Only , meaning it must be used only during the course of employment by individuals aware of the hazards, and the ways to minimize such hazards. This radio is not intended for useby the General Population in an uncontrolled environment. CAUTION: To ensure that your expose to RF electromagnetic energy is within the FCC allowable limits for occupa-tional use, always adhere to the following guidelines:  This radio is NOT approved for use by the general population in an uncontrolled exposure envi-ronment. This radio is restricted to occupational use, work related operations only where theradio operator must have the knowledge to control his or her RF exposure conditions.  When transmitting, hold the radio in a vertical position with its microphone 2 inches (5 cm) awayfrom your mouth and keep the antenna at least 2 inches (5 cm) away from your head and body. VX-920/-970 S ERIES O PERATING M ANUAL 3  The radio must be used with a maximum operating duty cycle not exceeding 50%, in typicalPush-to-Talk configurations.DO NOT transmit for more than 50% of total radio use time (50% duty cycle). Transmittingmore than 50% of the time can cause FCC RF exposure compliance requirements to …

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December 24, 2005 Federal Communications Commission Authorization and Evaluation Division, 7435 Oakland Mills Road Columbia, MD 21046 USA Re: FCC ID: K6610334620 VX-921-G6-5, VX-924-G6-5, and VX-929-G6-5 VX-971-G6-5, VX-974-G6-5, and VX-979-G6-5 Gentlemen: Part 15.19 Compliance Statement is placed on the rear of case. Sincerely, Vertex Standard Co., Ltd. Mr. Moto Kurihara Group Leader of Engineering Division

December 24, 2005 Federal Communications Commission Authorization and Evaluation Division, 7435 Oakland Mills Road Columbia, MD 21046 USA Re: FCC ID: K6610334620 VX-921-G6-5, VX-924-G6-5, and VX-929-G6-5 VX-971-G6-5, VX-974-G6-5, and VX-979-G6-5 Gentlemen: A. Part 15.21 Compliance Statement Drawing: B. Part 15.21 Compliance Statement Drawing Location: IN OPERATION MANUAL (location on inside back cover) Sincerely, Vertex Standard Co., Ltd. Mr. Moto Kurihara Group Leader of Engineering Division Part 15.21: Changes or modifications to this device not expressly approved by Vertex Standard could void the user’s authorization to operate this device. 20mm 97mm

December 24, 2005 Federal Communications Commission Authorization and Evaluation Division, 7435 Oakland Mills Road Columbia, MD 21046 USA Re: FCC ID: K6610334620 VX-921-G6-5, VX-924-G6-5, and VX-929-G6-5 VX-971-G6-5, VX-974-G6-5, and VX-979-G6-5 Gentlemen: The equipment meets the requirements of the FCC Rules, Part 90.203(e) and (g), as applicable. Programming of this product’s transmit frequencies can be performed ONLY by the manufacturer or by service or maintenance personal. The operator cannot be program transmit frequencies using the equipment’s external operation controls. Sincerely, Vertex Standard Co., Ltd. Mr. Moto Kurihara Group Leader of Engineering Division

December 24, 2005 Federal Communications Commission EQUIPMENT APPROVAL SERVICES P. O. Box 358315 Pittsburgh, PA 15251-5315 Attention: Authorization and Evaluation Division Reference: FCC ID: K6610334620 VX-921-G6-5, VX-924-G6-5, and VX-929-G6-5 VX-971-G6-5, VX-974-G6-5, and VX-979-G6-5 Pursuant to Sections 0.457 (d)(1)(ii) and 0.459 of the Commission’s Rules, the Applicant hereby requires confidential treatment of some of the information accompanying this Application, as listed below: ・ Block Diagram ・ Schematics These materials contain trade secrets and proprietary information not customarily released to the public. The public disclosure of these matters might be harmful to the Applicant and provide unjustified benefits to its competitors. The Applicant understands that pursuant to Rule 0.457 (d)(1)(ii), disclosure of the Application and all accompanying documentation will not be made before the date of Grant for this Application. Sincerely, Vertex Standard Co., Ltd. Mr. Moto Kurihara Group Leader of Engineering Division

FCC ID: K6610334620 IC ID: 511B-10334620 Vertex Standard Co., Ltd. Front view (VX-929/VX-979) Front view (VX-924/VX-974) FCC ID: K6610334620 IC ID: 511B-10334620 Vertex Standard Co., Ltd. Front view (VX-921/VX-971) Rear view FCC ID: K6610334620 IC ID: 511B-10334620 Vertex Standard Co., Ltd. Left side Right side FCC ID: K6610334620 IC ID: 511B-10334620 Vertex Standard Co., Ltd. Top Bottom FCC ID: K6610334620 IC ID: 511B-10334620 Vertex Standard Co., Ltd. Battery Pack FNB-V86LI Battery Pack FNB-V86LI FCC ID: K6610334620 IC ID: 511B-10334620 Vertex Standard Co., Ltd. Battery Pack FNB-V87LI Battery Pack FNB-V87LI FCC ID: K6610334620 IC ID: 511B-10334620 Vertex Standard Co., Ltd. Battery Charger Battery Charger FCC ID: K6610334620 IC ID: 511B-10334620 Vertex Standard Co., Ltd. AC Adapter AC Adapter FCC ID: K6610334620 IC ID: 511B-10334620 Vertex Standard Co., Ltd. Speaker/Microphone Antenna

VX-920/970 series (UHF)VX-920/970 series (UHF) LABEL DRAWINGLABEL DRAWING Vertex Standard Co., Ltd.Vertex Standard Co., Ltd. ID / Part 15.19 and CAUTION drawings ID drawing Part 15.19 and CAUTION drawings Label location VX-921-G6-5 FCC ID: K6610334620 IC: 511B-10334620 4909959000000 ! ! Device restricted to occupational use to satisfy FCC RF exposure compliance. See owner's manual for specific operating requirement CAUTION This device complies with part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful interference. VERTEX STANDARD CO., LTD. MADE IN JAPAN SER NO. 00000000 VX-924-G6-5 FCC ID: K6610334620 IC: 511B-10334620 4909959000000 VERTEX STANDARD CO., LTD. MADE IN JAPAN SER NO. 00000000 VX-929-G6-5 FCC ID: K6610334620 IC: 511B-10334620 4909959000000 VERTEX STANDARD CO., LTD. MADE IN JAPAN SER NO. 00000000 VX-971-G6-5 FCC ID: K6610334620 IC: 511B-10334620 4909959000000 VERTEX STANDARD CO., LTD. MADE IN JAPAN SER NO. 00000000 VX-974-G6-5 FCC ID: K6610334620 IC: 511B-10334620 4909959000000 VERTEX STANDARD CO., LTD. MADE IN JAPAN SER NO. 00000000 VX-979-G6-5 FCC ID: K6610334620 IC: 511B-10334620 4909959000000 VERTEX STANDARD CO., LTD. MADE IN JAPAN SER NO. 00000000

FCC ID: K6610334620 IC ID: 511B-10334620 Vertex Standard Co., Ltd. Inside view (VX-929/979/924/974) Inside view (VX-921/971) FCC ID: K6610334620 IC ID: 511B-10334620 Vertex Standard Co., Ltd. Side-A of MAIN-UNIT Side-B of MAIN-UNIT with shield cases FCC ID: K6610334620 IC ID: 511B-10334620 Vertex Standard Co., Ltd. Side-B of MAIN-UNIT without shield cases Front panel and DISPLAY-UNIT (VX-929/979) FCC ID: K6610334620 IC ID: 511B-10334620 Vertex Standard Co., Ltd. Front panel and DISPLAY-UNIT (VX-924/974) Side-A of DISPLAY-UNIT with LCD FCC ID: K6610334620 IC ID: 511B-10334620 Vertex Standard Co., Ltd. Side-A of DISPLAY-UNIT without LCD Side-B of DISPLAY-UNIT FCC ID: K6610334620 IC ID: 511B-10334620 Vertex Standard Co., Ltd. Side-A of CONNECTION-UNIT Side-B of CONNECTION-UNIT FCC ID: K6610334620 IC ID: 511B-10334620 Vertex Standard Co., Ltd. SUB-RX-UNIT in chassis Side-A of SUB-RX-UNIT FCC ID: K6610334620 IC ID: 511B-10334620 Vertex Standard Co., Ltd. Side-B of SUB-RX-UNIT with shield case Side-B of SUB-RX-UNIT without shield case FCC ID: K6610334620 IC ID: 511B-10334620 Vertex Standard Co., Ltd. Inside of front panel (for VX-929/979) Inside of front panel (for VX-924/974) FCC ID: K6610334620 IC ID: 511B-10334620 Vertex Standard Co., Ltd. Inside of front panel (for VX-921/971) Inside of chassis FCC ID: K6610334620 IC ID: 511B-10334620 Vertex Standard Co., Ltd. Inside of Battery charger Inside of Speaker/Microphone

FCC ID: K6610334620 IC ID: 511B-10334620 Circuit Description 1/3 Vertex Standard Co., Ltd. VX-920/970 (UHF) series Circuit Description 1. Circuit Configuration by Frequency The receiver is a double-conversion superheterodyne with a first intermediate frequency (IF) of 50.85MHz and a second IF of 450kHz. Incoming signal from the antenna is mixed with the local signal from the VCO/PLL to produce the first IF of 50.85MHz. This is then mixed with the 50.4MHz second local oscillator output to produce the 450kHz second IF. This is detected to give the demodulated signal. The transmit signal frequency is generated by the PLL VCO, and modulated by the signal from the microphone. It is then amplified and sent to the antenna. 2. Receiver System 2-1. Front-end RF amplifier Incoming RF signal from the antenna is delivered to the RF Unit and passes through Low-pass filer, antenna switching diode, high pass filter and removed undesired frequencies by varactor diode (tuned band-pass filer). The passed signal is amplified in Q1022 and moreover cuts an image frequency with the tuned band pass filter and comes into the 1st mixer. 2-2. First Mixer The 1st mixer consists of the Q1034, T1001, T1002 and T1003. Buffered output from the VCO is amplified by Q1033 to provide a pure first local signal between 399.15 and 461.15MHz for injection to the first mixer. The IF signal then passes through monolithic crystal filters XF1001 (±5.5 kHz BW) to strip away all but the desired signal. 2-3. IF Amplifier The first IF signal is amplified by Q1058. The amplified first IF signal is applied to FM IF subsystem IC Q1067 which contains the second mixer, second local oscillator, limiter amplifier, noise amplifier, and S-meter amplifier. The signal from reference oscillator X1003 becomes 3 times of frequencies in Q1067, it is mixed with the IF signal and becomes 450KHz. The second IF then passes through the ceramic filter CF1001 (wide channels), CF1002 (narrow channels) to strip away unwanted mixer products, and is applied to the limiter amplifier in Q1067, which removes amplitude variations in the 450kHz IF, before detection of the speech by the ceramic discriminator CD1001. 2-4. Audio amplifier Detected signal from Q1067 is inputted to Q1032 and is output through the band path filter inside Q1032. In the case an optional unit is installed, the Q1078 is made OFF and the AF signal from Q1032 goes the optional unit. In the case an optional unit is not installed, Q1078 is made ON and the signal goes through Q1078. The signal then goes through de-emphasis part and expander Q1023. When the function of expander is off, the signal will be bypassed by Q1016. The output signal of expander (or a signal from de-emphasis) goes through AF mute switch Q1078 and amplified by Q1077. The signal goes to Q1030, when the audio equalizer is off. In the case the audio equalizer is on, the signal from Q1077 goes to the buffer amplifier Q1077 for audio equalizer Q1083, Q1025 and Q1029. And then the signal goes to Q1030. The output from Q1030 is amplified with AF power amplifier Q1015 after passing AF volume Q1020. The output of Q1015 drives a speaker (it chooses the external SP or internal SP in external terminal, SELECT) 2-5. Squelch Circuit There are 13 levels of squelch setting from 0 to 12. The level 0 means open the squelch. The level 1 means the threshold setting level and level 11 means tight squelch. From 2 to 10 is established in the middle of threshold and tight. The bigger figure is nearer the tight setting. The level 12 becomes setting of carrier squelch. FCC ID: K6610334620 IC ID: 511B-10334620 Circuit Description 2/3 Vertex Standard Co., Ltd. 2-5-1. Noise Squelch Noise squelch circuit is composed of the band path filter of Q1067, noise amplifier Q1071, and noise detector D1047, D1048. When a carrier isn't received, the noise ingredient which goes out of the demodulator Q1067 is amplified in Q1071 through the band path filter Q1067, is detected to DC voltage with D1047, D1048 and is inputted to 16pin (the A/D port) of the Q1069 (CPU). When a carrier is received, the DC voltage becomes low because the noise is compressed. When the detected voltage to CPU is high, the CPU stops AF output with Q1078 "OFF" by making the 59pin (CPU) "L" level. When the detection voltage is low, the CPU makes Q1078 ON with making 59pin "H" and the AF signal is output. 2-5-2. Carrier Squelch The CPU (15pin: A/D port) detect RSSI voltage output from Q1067 12 pin, and controls AF output. The RSSI output voltage changes according to the signal strength of carrier. The stronger signal makes the RSSI voltage to be higher voltage. The process of the AF signal control is same as Noise Squelch The shipping data is adjusted 3dB higher than squelch tight sensitivity. 3. Transmitter System 3-1. Mic Amplifier The AF signal from internal microphone J1001 4pin or external microphone J1001 19pin is amplified with microphone amplifier Q1076, after microphone selection switch Q1001, and passes microphone gain volume Q1020. The AF signal which was controlled in the correct gain passes compressor Q1023. When not using a compressor, with the control from the CPU, it passes in the compressor circuit inside of Q1023 and it is output and it passes a pre-emphasis circuit. Q1078 becomes OFF when an option unit is attached and the AF signal from Q1023 goes via the option unit. When an option unit isn't attached, Q1078 becomes ON, the signal passes Q1078 and is input to the pre-emphasis amplifier Q1032. The signal passed limiter and splatter filter of Q1032 is adjusted by maximum deviation adjustment volume Q1020. The adjusted low frequency signal ingredient is amplified by Q1075, added modulation terminal of TCXO (X1003), the FM modulation is made by reference oscillator. The high frequency signal ingredient is amplified Q1075, and adjusted the level by volume Q1020 to make frequency balance between low frequency. After that, it is made FM modulation to transmit carrier by the modula…

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1 FCC ID: K6610334620/IC ID: 511B-10334620 VX-920/970 (UHF) SeriesSemi-Conductor Parts List Address Parts Code Device NameDescriptionTYP VAL MAIN-UNIT D 1001 G2070692 DiodePTZ 15A D 1002 G2070634 Diode1SS400 D 1003 G2070634 Diode1SS400 D 1004 G2070634 Diode1SS400 D 1005 G2070634 Diode1SS400 D 1006 G2070178 DiodeDA221 D 1007 G2070178 DiodeDA221 D 1008 G2070178 DiodeDA221 D 1009 G2070178 DiodeDA221 D 1010 G2070178 DiodeDA221 D 1011 G2070462 DiodeHVU131 D 1012 G2070462 DiodeHVU131 D 1013 G2070178 DiodeDA221 D 1014 G2071006 Diode1SV323 D 1015 G2071006 Diode1SV323 D 1016 G2070634 Diode1SS400 D 1017 G2070634 Diode1SS400 D 1018 G2071006 Diode1SV323 D 1019 G2071006 Diode1SV323 D 1020 G2070174 DiodeDAN222 D 1021 G2070634 Diode1SS400 D 1022 G2070178 DiodeDA221 D 1023 G2070178 DiodeDA221 D 1024 G2070612 DiodeDAN235E D 1027 G2070922 DiodeHVC383B D 1028 G2071056 LEDSDDF01000A1 D 1029 G2070634 Diode1SS400 D 1030 G2071076 DiodeHVC327C D 1031 G2071076 DiodeHVC327C D 1032 G2071076 DiodeHVC327C D 1033 G2070922 DiodeHVC383B D 1033 G2071076 DiodeHVC327C D 1034 G2070922 DiodeHVC383B D 1034 G2071076 DiodeHVC327C D 1035 G2071076 DiodeHVC327C D 1036 G2070922 DiodeHVC383B D 1036 G2071076 DiodeHVC327C D 1037 G2070922 DiodeHVC383B D 1037 G2071076 DiodeHVC327C D 1038 G2070634 Diode1SS400 D 1039 G2070178 DiodeDA221 D 1040 G2070178 DiodeDA221 D 1041 G2070754 Zener DiodeHZU5ALL D 1042 G2070634 Diode1SS400 D 1043 G2070612 DiodeDAN235E D 1044 G2070174 DiodeDAN222 D 1045 G2070634 Diode1SS400 D 1046 G2070174 DiodeDAN222 D 1047 G2070178 DiodeDA221 D 1048 G2070178 DiodeDA221 Q 1001 G1093864 ICCD4053BPWR Q 1001 G1092927 ICNJU4053BV Q 1002 G3070143 TransistorXP1501 Vertex Standard Co.,Ltd. 2 FCC ID: K6610334620/IC ID: 511B-10334620 VX-920/970 (UHF) SeriesSemi-Conductor Parts List Address Parts Code Device NameDescriptionTYP VAL Q 1003 G3211327R Transistor2SB1132 R Q 1004 G3070075 TransistorDTC144EE Q 1005 G1094097 ICTAR5S50U Q 1006 G3070343 TransistorUMD5N Q 1007 G4070015 MOSFETRTQ030P02 Q 1008 G1091542 ICTDA2822D013 Q 1009 G3070225 TransistorDTC114TE Q 1010 G3834768 FET2SK3476 Q 1011 G3070342 TransistorUMD12N Q 1012 G3117748R Transistor2SA1774 R Q 1013 G3070225 TransistorDTC114TE Q 1014 G3070342 TransistorUMD12N Q 1015 G1091542 ICTDA2822D013 Q 1016 G1093864 ICCD4053BPWR Q 1016 G1092927 ICNJU4053BV Q 1017 G3070075 TransistorDTC144EE Q 1018 G3070075 TransistorDTC144EE Q 1019 G3070075 TransistorDTC144EE Q 1020 G1093033 ICM62364FP 600D Q 1021 G3070318 FET2SK3475 Q 1022 G3070348 TransistorMSG330010L Q 1023 G1093452 ICLA8630M-B-R Q 1024 G3070075 TransistorDTC144EE Q 1025 G1093862 ICCD4052BPWR Q 1026 G3070349 TransistorUNR911FJ0L Q 1027 G3333577F Transistor2SC3357 RF Q 1028 G1093746 ICBD6111FV-E2 Q 1029 G1093862 ICCD4052BPWR Q 1030 G1092927 ICNJU4053BV Q 1031 G1093074 ICNJM2130F Q 1032 G1093184 ICAK2345CP-E2 Q 1033 G3352268D Transistor2SC5226-4 Q 1034 G1093686 ICSPM5001 Q 1035 G3070075 TransistorDTC144EE Q 1036 G3117748R Transistor2SA1774 R Q 1037 G3070075 TransistorDTC144EE Q 1038 G3070074 TransistorDTA144EE Q 1039 G3070225 TransistorDTC114TE Q 1040 G3070225 TransistorDTC114TE Q 1041 G1093656 ICBU8872FS-E2 Q 1042 G3352268D Transistor2SC5226-4 Q 1043 G3070075 TransistorDTC144EE Q 1044 G3070075 TransistorDTC144EE Q 1045 G3070349 TransistorUNR911FJ0L Q 1046 G3070225 TransistorDTC114TE Q 1047 G3805087B FET2SK508 K52 Q 1048 G3070225 TransistorDTC114TE Q 1049 G3070075 TransistorDTC144EE Q 1050 G3070225 TransistorDTC114TE Q 1051 G3352268D Transistor2SC5226-4 Q 1052 G3342277B Transistor2SC4227 R32 Q 1052 G3342278B Transistor2SC4227 R32 Q 1053 G3070225 TransistorDTC114TE Q 1054 G3070225 TransistorDTC114TE Vertex Standard Co.,Ltd. 3 FCC ID: K6610334620/IC ID: 511B-10334620 VX-920/970 (UHF) SeriesSemi-Conductor Parts List Address Parts Code Device NameDescriptionTYP VAL Q 1055 G3417677Q Transistor2SD1767 Q Q 1056 G3346178R Transistor2SC4617 R Q 1057 G3070225 TransistorDTC114TE Q 1058 G3352268D Transistor2SC5226-4 Q 1059 G3070225 TransistorDTC114TE Q 1060 G3070343 TransistorUMD5N Q 1061 G1093606 ICS-80835CNMC-B8U-G Q 1062 G1094096 ICTAR5S35U Q 1063 G1094096 ICTAR5S35U Q 1064 G3070225 TransistorDTC114TE Q 1065 G1093874 ICBR93L66RFVM Q 1066 G3346178R Transistor2SC4617 R Q 1067 G1091605 ICTA31136FN Q 1068 G3808807G FET2SK880GR Q 1069 G1094184 ICLC87F5BP6A-F54P8-E Q 1070 G1093014 ICSA7025DK Q 1071 G3346178R Transistor2SC4617 R Q 1072 G1093592 ICNJM12902V Q 1073 G1094009 ICLM2902PWR Q 1074 G1094009 ICLM2902PWR Q 1075 G1094009 ICLM2902PWR Q 1076 G1094010 ICLM2904PWR Q 1077 G1094009 ICLM2902PWR Q 1078 G1093865 ICCD4066BPWR Q 1078 G1091873 ICNJU4066BV Q 1079 G3070075 TransistorDTC144EE Q 1080 G1094010 ICLM2904PWR Q 1081 G3070075 TransistorDTC144EE Q 1083 G1094009 ICLM2902PWR Q 1084 G3070075 TransistorDTC144EE Q 1085 G1091528 ICTC7S08FU Q 1086 G3070343 TransistorUMD5N Q 1087 G3070347 MOSFETRTM002P02 Q 1088 G3070075 TransistorDTC144EE Q 1089 G3070075 TransistorDTC144EE DISPLAY-UNITLCD ON D 2001 G2070842 LEDFA1101F D 2002 G2070842 LEDFA1101F D 2003 G2070990 LEDTLOU1020 D 2004 G2070990 LEDTLOU1020 D 2005 G2070990 LEDTLOU1020 D 2006 G2070990 LEDTLOU1020 D 2007 G2070990 LEDTLOU1020 D 2008 G2070990 LEDTLOU1020 D 2009 G2070634 Diode1SS400 D 2010 G2070634 Diode1SS400 D 2011 G2070634 Diode1SS400 D 2012 G2070634 Diode1SS400 DS2001 G6090163 LCDA00170 Q 2001 G3070225 TransistorDTC114TE Q 2002 G3070225 TransistorDTC114TE Q 2003 G1094097 ICTAR5S50U Q 2004 G3070143 TransistorXP1501 Q 2005 G3116028F Transistor2SA1602A-1F Vertex Standard Co.,Ltd. 4 FCC ID: K6610334620/IC ID: 511B-10334620 VX-920/970 (UHF) SeriesSemi-Conductor Parts List Address Parts Code Device NameDescriptionTYP VAL Q 2006 G1093881 ICNJU6624AFG1-03 SUB-RX-UNITSRX ON D 4001 G2071006 Diode1SV323 D 4002 G2070848 Diode1SV325 D 4003 G2070848 Diode1SV325 D 4004 G2070848 Diode1SV325 D 4005 G2070848 Diode1SV325 D 4006 G2071006 Diode1SV323 D 4007 G2070934 Diode1SS400G D 4008 G2071006 Diode1SV323 D 4009 G2071006 Diode1SV323 D 4010 G2071006 Diode1SV323 D 4011 G2071006 Diode1SV323 D 4012 G2071006 Diode1SV323 D …

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FCC ID: K6610334620 IC ID: 511B-10334620 Alignment 1/8 Vertex Standard Co., Ltd. VX-920/970 (UHF) series Alignment Introduction The VX-920/970 (UHF) series is carefully aligned at the factory for the specified performance across the frequency range specified for each version. Realignment should therefore not be necessary except in the event of a component failure, or altering version type. All component replacement and service should be performed only by an authorized Vertex Standard representative, or the warranty policy may be void. The following procedures cover the sometimes critical and tedious adjustments that are not normally required once the transceiver has left the factory. However, if damage occurs and some parts subsequently are placed, realignment may be required. If a sudden problem occurs during normal operation, it is likely due to component failure; realignment should not be done until after the faulty component has been replaced. We recommend that servicing be performed only by authorized Vertex Standard service technicians who are experienced with the circuitry and fully equipped for repair and alignment. Therefore, if a fault is suspected, contact the dealer from whom the transceiver was purchased for instructions regarding repair. Authorized Vertex Standard service technicians realign all circuits and make complete performance checks to ensure compliance with factory specifications after replacing any faulty components. Those who do undertake any of the following alignments are cautioned to proceed at their own risk. Problems caused by unauthorized attempts at realignment are not covered by the warranty policy. Also, Vertex Standard reserves the right to change circuits and alignment procedures in the interest of improved performance, without notifying owners. Under no circumstances should any alignment be attempted unless the normal function and operation of the transceiver are clearly understood, the cause of the malfunction has been clearly pinpointed and any faulty components replaced, and realignment determined to be absolutely necessary. The following test equipment (and thorough familiarity with its correct use) is necessary for complete realignment. Correction of problems caused by misalignment resulting from use of improper test equipment is not covered under the warranty policy. While most steps do not require all of the equipment listed, the interactions of some adjustments may require that more complex adjustments be performed afterwards. Do not attempt to perform only a single step unless it is clearly isolated electrically from all other steps. Have all test equipment ready before beginning, and follow all of the steps in a section in the order presented. FCC ID: K6610334620 IC ID: 511B-10334620 Alignment 2/8 Vertex Standard Co., Ltd. Required Test Equipment ˆ RF Signal Generator with calibrated output level at 1 GHz ˆ Deviation Meter (linear detector) ˆ In-line Wattmeter with 5 % accuracy at 500 MHz ˆ 50 Ω RF Dummy Load with power rating 10 W at 500 MHz ˆ 16 Ω AF Dummy Load (Attention : Audio output is BTL output) ˆ Regulated DC Power Supply (standard 7.5 V DC, 3 A) ˆ Frequency Counter with 0.2 ppm accuracy at 500 MHz ˆ Audio Generator ˆ AC Voltmeter ˆ DC Voltmeter ˆ VHF Sampling Coupler ˆ IBM PC / compatible Computer with Microsoft DOS v3.0 or later operating system ˆ Vertex Standard VPL-1 Connection Cable & Alignment program Alignment Preparation & Precautions A 50-Ω RF Dummy Load and in-line wattmeter must be connected to the main antenna jack in all procedures that call for transmission, except where specified otherwise. Correct alignment is not possible with an antenna. After completing one step, read the following step to determine whether the same test equipment will be required. If not, remove the test equipment (except dummy load and wattmeter, in connected) before proceeding. Correct alignment requires that the ambient temperature be the same as that of the transceiver and test equipment, and that this temperature be held constant between 20 and 30 °C (68 ∼ 86 °F). When the transceiver is brought into the shop from hot or cold air, it should be allowed time to come to room temperature before alignment. Whenever possible, alignments should be made with oscillator shields and circuit boards firmly affixed in place. Also, the test equipment must be thoroughly warmed up before beginning. Note: Signal levels in dB referred to in the alignment procedure are based on 0 dB μ EMF = 1 μV. Setup the test equipment as shown for transceiver alignment, apply 7.4 V DC power to the transceiver. Refer to the drawings above for Alignment Points. FCC ID: K6610334620 IC ID: 511B-10334620 Alignment 3/8 Vertex Standard Co., Ltd. PC POWER SUPPLY 7.5V DC RF SIGNAL GENERATOR 50 Ω DUMMY LOAD IN-LINE WATTMETER DEVIATION METER FREQUENCY COUNTER RF SAMPLING COUPLER TRANSCEIVER ANT MIC/EAR COM port CT-71 connection cable The transceiver must be programmed for use in the intended system before alignment is attempted. The RF parameters are loaded from the file during the alignment process. In order to facilitate alignment over the complete switching range of the equipment it is recommended that the channel data in the transceiver is preset as the chart below. Channels Frequency BAND-LOW 400.000 MHz BAND-MID 435.000 MHz BAND-HIGH 470.000 MHz The alignment mode is accessed by “Alignment mode” command from the computer whilst switching on. And the alignment tool operates it automatically. During the alignment mode, normal operation is suspended. Use the alignment tool program running on PC. The alignment tool outline Installation th…

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