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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.
VHF FM Transceiver
YAESU EUROPE B.V.
P.O. Box 75525, 1118 ZN Schiphol, The Netherlands
YAESU UK LTD.
VX-2100 Series
Unit 12, Sun Valley Business Park, Winnall Close
Winchester, Hampshire, SO23 0LB, U.K.
VX-2200 Series
VERTEX STANDARD HK LTD.
Unit 5, 20/F., Seaview Centre, 139-141 Hoi Bun Road,
Kwun Tong, Kowloon, Hong Kong
Service Manual
( )
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Specifications (VTX/EXP Version) General Frequency Ranges: 134 -174 MHz Number of Groups: 1 groups (VX-2100 Series) 8 groups (VX-2200 Series) Number of Channels: 8 channels (VX-2100 Series) 128 channels (VX-2200 Series) Power Supply Voltage: 13.6 V ± 15% Channel Spacing: 6.25 / 12.5 / 25 kHz Current Consumption (Approx.): TX: 11 A (50 W) or 6 A (25 W) RX: 2.5 A Standby: 250 mA Operating Temperature Range: –22 °F to +140 °F (–30 °C to +60 °C) Frequency Stability: Better than ±2.5 ppm RF Input-Ou
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Specifications (EU Version) General Frequency Ranges: 134 -174 MHz Number of Groups: 1 groups (VX-2100 Series) 8 groups (VX-2200 Series) Number of Channels: 8 channels (VX-2100 Series) 128 channels (VX-2200 Series) Power Supply Voltage: 10.8 - 15.6 V DC Channel Spacing: 12.5 / 20 / 25 kHz Current Consumption (Approx.): TX: 6 A RX: 2.5 A Standby: 200 mA Operating Temperature Range: –30 °C to +60 °C Frequency Stability: Better than ±2.5 ppm RF Input-Output Impedance: 50 Ohm Dimension (W x H x D):
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DSUB 15-pin Accessory Connector Pin 1: AF IN (ANALOG INPUT) Pin 6: EXT PTT External Microphone Input. Nominal input level is 6 Shorting this port to ground causes the transceiver to mV at 600-ohm. be placed in the Transmit mode, while opening the When connect the External Microphone to this port, connection to this port returns the transceiver to the insert a 0.1 µF coupling capacitor between the micro- Receive mode. Opening voltage is 5 V, closed current phone and this port; as shown illustlati
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Exploded View & Miscellaneous Parts VX-2100 FRONT PANEL FRONT-A-UNIT RA0790200 TOP CASE RA0787600 RA080360A LIGHT GUIDE (x3 pcs) RA0841400 RUBBER PACKING BLIND SHEET RA078750A HOLDER RA0800600 T9318283 SPONGE RUBBER RA0786500 (Lot 1-4) WIRE ASSY (RED) RA0845300 (Lot 5-) RUBBER KNOB RA0832200 RA0790300 SHEET SHIELD CASE RA0788600 JOINT RA0790700 T9318284 PAD (AMP) WIRE ASSY (BLK) M4090179 RA0821900 P1090654 SPEAKER SPONGE RUBBER CONNECTOR RA0746700 RA0844300 (Lot. 1~6) MAIN-UNIT O RING T9207042 R
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Exploded View & Miscellaneous Parts Note: C-2
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Block Diagram D-1
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Block Diagram Note: D-2
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Circuit Description 2-4. Audio amplifier 1. Circuit Configuration by Frequency Detected signal from Q1036 (NJM2591V) is inputted to The receiver is a double-conversion superheterodyne with Q1042 (LM2902PW) and is output through the band pass a first intermediate frequency (IF) of 67.65 MHz and a filter inside Q1042 (LM2902PW). When the optional unit second IF of 450kHz. The incoming signal from the an- is installed Q1044 (SN74LV4066APW) is turned “OFF” tenna is mixed with the local signal from
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Circuit Description 3-4-1. VCO 3. Transmitter System While the radio is receiving, the RX oscillator Q1029 3-1. Mic Amplifier (2SK508) in the VCO generates a programmed frequency There are two micrphone inputs, J1004 (front) and J1006 between 201.65 and 241.65 MHz as 1st local signal. While (D-Sub). Each microphone inputs has it's own amplifier. the radio is transmitting the TX oscillator Q1031 Which micrphone is selected is controlled by the CPU and (2SC3356) in the VCO generates a frequency
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Alignment Introduction Required Test Equipment The VX-2100/-2200 series has been aligned at the factory Radio Tester with calibrated output level at 200 MHz for the specified performance across the entire frequency In-line Wattmeter with 5% accuracy at 200 MHz range specified. Realignment should therefore not be nec- 50-ohm, 50-W RF Dummy Load essary except in the event of a component failure. All com- Regulated DC Power Supply (standard 13.6V DC, 15A) ponent replacement and service should b
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Alignment Test Setup Basic Alignment Mode Setup the test equipment as shown for transceiver align- The Basic Alignment mode allows you to align the entire ment, apply 13.6V DC power to the transceiver. Refer to radio. The value of each parameter can be changed to the the drawings above for Alignment Points. desired position by use of the “ ” / “ ” and up/down arrow keys, along with direct number input and drag- ging of the PC mouse. 50-ohm RF Dummy Load Signal Generator To enter the Basic Alig
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Alignment Unit During alignment, the values of dBµV or µV (EMF or PD) can be selected or dBm. 1. RX VCO Tune Voltage (RX VCO) This parameter is to align the “Tune Voltage” of RX VCO. This alignment will be done automatically between the radio and PC. 1. Press the “Start” button on the “Basic Alignment” win- dow to open the RX VCO Adjustment window. 2. Press the “Start” button to start the alignment then the “OK” and “Cancel” buttons are inhibited during the alignment. 3. The aligned value will a
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Alignment 3. PLL Reference Frequency (Frequency) This parameter is to align the reference frequency for PLL. The “TX VCO Tune Voltage” alignment must be done before this alignment is going to start. 1. Press the “Start” button to start the alignment then the radio will transmit on the center frequency. It will ap- pear the Frequency Alignment window. 2. Set the value to get desired frequency by left/right ar- row key, drag the slide bar by mouse or direct number input. 3. Press the “OK” button o
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Alignment RSSI SQL Full Scale (S Full Scale W) The Alignment for the RSSI Full Scale level at Wide (5k/ 4k). Noise SQL Tight (TI NSQ N) The Alignment for the Noise SQL Tight level at Narrow (2.5k). Noise SQL Threshold < Narrow > (TH NSQ N) The Alignment for the Noise SQL Threshold level at Nar- row (2.5k). RSSI SQL Level 11 < Narrow > (RSSI SQL N) The Alignment for the “level 11“ of the RSSI SQL level at Narrow (2.5k). RSSI SQL Full Scale < Narrow > (S Full Scale N) The Alignment
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Alignment 7. Maximum Deviation / This parameter is to align the Maximum Deviation (Wide/Narrow). The “TX VCO Tune Voltage” must be done before this alignment is started. 1. Press the “Start” button to start the alignment. 2. Set the value to get desired deviation (Wide: 4.2kHz, Narrow: 2.1kHz) on the deviation meter by changing the slide bar on your PC. 3. Press the “OK” button after getting the desired Devia- tion to save the re-aligned value, the alignment of the MAX DEVIATION
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Alignment CH (Channel-by-Channel) Fine Alignment Mode The CH Fine Alignment Mode allows you to align the radio separately for every operating channel. The value of each parameter can be changed to the desired position using the “ ” / “ ” and up/down arrow keys, direct number input, and by dragging the PC mouse. To enter the CH Fine Alignment Mode, select “CH Fine Alignment” in the main “Radio” menu. It will start to “Upload” the written personalized data from the radio. Pressing the “OK” butto
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Installation of Option FVP-25/FVP-35/FVP-36 The FVP-25 is an Encryption/DTMF Pageing Unit which 1. Disconnect the DC power cable. permits secure voice communications with station within 2. Referring to Figure 1, remove the 8 screws affixing the your network, while preventing others from listening us- Top Cover, then remove the top cover. ing normal communications equipment. It allows paging, 3. Referring to Figure 2 & Figure 3, locate the empty con- and enables selective calling using DTMF tone
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MAIN Unit (Lot. 1~4) 67.65MHz RX:1.3V RX:7.4V -121.5dBm -103.0dBm 67.65MHz -81.5dBm RX:8.0V TX:0V TX:0V -123.8dBm (C1046 removed) -111.0dBm (C1146 removed) -108.5dBm -102.5dBm (C1230 removed) TX:0V RX:7.5V RX:2.0V -110.0dBm (C1198 removed) TX:0V TX:0V RX:2.0V Circuit Diagram TX:0V RX:4.3V TX:0V RX:1.4V -103.0dBm TX:0V -108.5dBm (C1093 removed) 8.1V RX:1.2V RX:7.5V TX:0V TX:0V RX:2.5V TX:5.9V RX:13.6V TX:13.6V +27.5dBm RX:1.3V TX:0V 7.3V RX:2.2V 50W:4.3V -120.5dBm TX:0V RX:0.4V RX:3.2V 10W:3.1V T
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MAIN Unit (Lot. 1~4) Note H-2
