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VERTEX STANDARD CO., LTD.
4-8-8 Nakameguro, Meguro-Ku, Tokyo 153-8644, Japan
VERTEX STANDARD
US Headquarters
10900 Walker Street, Cypress, CA 90630, U.S.A.
VX-1700 Series
YAESU EUROPE B.V.
P.O. Box 75525, 1118 ZN Schiphol, The Netherlands
HF Multi Mode Mobile Radio
YAESU UK LTD.
Unit 12, Sun Valley Business Park, Winnall Close
Service Manual
Winchester, Hampshire, SO23 0LB, U.K.
VERTEX STANDARD HK LTD.
For EXP Version
Unit 5, 20/F., Seaview Centre, 139-141 Hoi Bun Road,
Kwun Tong, Kowloon, Hong
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Specifications General Receiver Frequency Range: 30 kHz ~ 30.0000 MHz Transmitter Frequency: 1.600 ~ 30.0000 MHz Emission Modes: A1A (CW), J3E (LSB/USB), A3E (AM), J2B (USB/LSB), H3E (2.182 MHz Emergency Channel only) Frequency Synthesizer Step: 10 Hz, 100 Hz, 1 kHz Frequency Stability: ±1 ppm (Typical) Operating Temperature Range: 14° F ~ 122° F (–10° ~ +50° C) Antenna Impedance: 50 Ohms Supply Voltage: 13.8 Volts DC ±15%, negative ground Power Consumption: 25 mA (Standby) 1.0 A (Receive, no si
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Exploded View & Miscellaneous Parts 14 14 14 14 14 RA0695200 14 COVER (TOP) 14 13 14 1 13 PA UNIT 2 13 13 P1090352 CONNECTOR (FM-MDR-MI) 6 6 6 13 6 3 15 5 RA0695600 RA0635400 HOLDER PLATE (CW) CHASSIS 5 T9207202A WIRE ASSY PANEL UNIT RA0695700 12 HOLDER PLATE (D-SUB) RA0696100 REFLECTOR SHEET RA0727200 DIFFUSER SHEET (BLIND) (2pcs) 9 4 RA0695800 9 INTER CONNECTOR (2pcs) G6090162 MAIN UNIT LCD 4 10 RA0695000 FRONT PLATE (A) RA0695900 12 LIGHT GUIDE (LCD) SUPPLIED ACCESSORIES M4090146 RA0727100 GP
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Exploded View & Miscellaneous Parts Note 4
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Block Diagram 5
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Connection Diagram 6
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Circuit Description The DSP IC Q1035 (UPD77115) outputs AGC data Receive Signal Path which is proportionate to the received signal Incoming RF signal from the ANT jack is delivered strength to the main CPU Q1018 (HD64F2134). The to the PA Unit, and passes through the TX/RX relay main CPU Q1018 (HD64F2134), in turn, outputs a RL2009 to J2006. DC voltage in accordance with the received signal The RF signal is then applied to J1001 on the MAIN strength. This DC voltage is fed through buffer am- Uni
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Circuit Description On the PA Unit, the low-level RF signal from the IC Q1056 (ADF4001BRU), which contains a refer- MAIN Unit is amplified by pre-driver Q2001 ence divider, serial-to-parallel data latch, program- (RD06HHF1), push-pull driver Q2008/Q2009 (both mable divider, phase comparator and a swallow RD16HHF1), and push-pull final amplifier Q2012/ counter. The sample VCO signal is divided by the Q2013 (both SD1405), which provides up to 120 programmable divider section of the Q1056 watts of
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Circuit Description Control Circuit TX/RX Control Major frequency control functions such as channel When the PTT switch is pressed, pin 21 of the main selection, display, and PLL divider control are per- CPU Q1018 (HD64F2134) goes low, which causes formed by main CPU Q1018 (HD64F2134) on the pin 60 of the main CPU Q1018 (HD64F2134) to go MAIN Unit, at the command of the user via the tun- low. This signal disables the receiver 12 V bus at ing knob and function switches on the front panel. Q1046 (
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Connector Pinout Diagrams / Slide Switch Setting MIC Jack GPS Jack (As Viewed From Front Panel) (As Viewed From Rear Panel) P ENB Connected with , , , and . CNTL GND GPS Data Input (+) PTT N/C MIC Connected with , , , and . MIC GND ( ) GPS Data Input -- + 5V Connected with , , , and . UP Connected with , , , and . DOWN Connected with , , , and . NC Pin 3 PTT Open Circuit Voltage: 5 V, Closed Circuit Current: 1 mA ACC Jack TUNE Jack
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Alignment The VX-1700 is carefully aligned at the factory for ment listed, the interactions of some adjustments the specified performance across the entire operat- may require that more complex adjustments be per- ing frequency range. Realignment should therefore formed afterwards. Do not attempt to perform only not be necessary except in the event of a component a single step unless it is clearly isolated electrically failure. All component replacement and service from all other steps. Have all
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Alignment Whenever possible, alignments should be made with Reference & Local Alignment oscillator shields and circuit boards firmly affixed PLL REFERENCE FREQUENCY ALIGNMENT in place. Also, the test equipment must be thorough- Connect the Frequency Counter to pin 4 of Q1062 ly warmed up before beginning. on the MAIN Unit. Adjust X1003 on the MAIN Unit for 22.625 MHz Note: Signal levels in dB referred to in the alignment ±10 Hz on the frequency Counter. procedure are based on 0dBµ = 0.5µV. 2
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Alignment Transmitter Alignment Receiver Alignment TX IF COILS ALIGNMENT RX IF COILS ALIGNMENT Connect the 50 Ohm Dummy Load to the ANT Connect the RF Signal Generator to the ANT jack, jack. and connect the AF millivoltmeter to the EXT SP Remove the coaxial plug from J1002 on the MAIN jack. Unit, then connect the RF millivoltmeter and 50 Tune the radio to 19.900 MHz, CW mode. Ohm resistor to J1002. Inject a 19.900 MHz signal from the RF Signal Connect the AF Generator to pin 4 of the
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Alignment DRIVER SECTION IDLING CURRENT ALIGNMENT PA Unit Alignment Connect the 50 Ohm Dummy Load to the ANT PRE-DRIVER SECTION IDLING CURRENT ALIGNMENT jack. Connect the 50 Ohm Dummy Load to the ANT Remove the shorting-plug from J2004 on the PA jack. Unit, then connect the DC Ammeter to J2004 (pin Remove the shorting-plug from J2003 on the PA 1: “–” lead, pin 2: “+” lead). Unit, then connect the DC Ammeter to J2003 (pin Set VR2002 on the PA Unit fully counter-clock- 1: “–” lead, pin 2
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Alignment FINAL SECTION IDLING CURRENT ALIGNMENT CM COUPLER BALANCE Connect the 50 Ohm Dummy Load to the ANT Connect the 50 Ohm Dummy Load and Inline jack. Wattmeter to the ANT jack, and connect the CW Remove the solder jumper which is connected keyer to the KEY jack. between TP2020 and TP2021 on the PA Unit, then Connect the DC voltmeter to TP2018 (“+” lead, connect the “+” lead of the DC Ammeter to “–” lead: GND) on the PA Unit. TP2020 and the “–” lead to TP2021. Tune the radio to 29
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Alignment TX OUTPUT POWER ALIGNMENT Software Menu Alignment Connect the 50 Ohm Dummy Load and Inline The ANT jack should be connected to a Dummy Wattmeter to the ANT jack. Load (in the case of transmission) or RF Signal Gen- [ ] Referring to the Table below, press the ALARM / erator (in the case of reception). General alignment [ ] 2128 key to recall each parameter listed, then conditions are as follows, unless otherwise noted. key the transmitter (connect pin 3 of the MIC jack VOL Knob: Cen
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Alignment REV ALC ALIGNMENT TX GAIN ALIGNMENT Connect the 150 Ohm Dummy Load (or three 50 Connect the 50 Ohm Dummy Load and Inline Ohm Dummy Loads in parallel) to the ANT jack. Wattmeter to the ANT jack. [ ] Referring to the Table below, press the ALARM / Connect the AF Generator to pin 4 of the MIC [ ] 2128 key to recall each parameter listed, then jack, and adjust the AF Generator output level key the transmitter (connect pin 3 of the MIC jack to 0.5 mV @1 kHz. to GND) and rotate the C
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Alignment Note 18
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ALE-1 Automatic Link Establishment Unit Installation Installation Make sure that the transceiver off. Remove the DC Power Cable, Microphone, and Antenna from the transceiver. Referring to Figure 1, remove the four screws from the side of the transceiver (two screws for each side), along with four screws affixing the bottom case; remove the bottom case. Referring to Figure 2, disconnect the 13-pin con- nector from J4001 on the GPS-INTERFACE Unit, remove the two HEX bolts which and four scre
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ALE-1 Automatic Link Establishment Unit Installation Note 20
