Vertex_VX-2100_2200_VHF_serv.pdf

2006 VERTEX STANDARD CO., LTD. EC061N90C VHF FM Transceiver VX-2100 Series VX-2200 Series Service Manual Specifications .A-1 DSUB 15-pin Accessory Connector. B-1 Exploded View all adjustments can be performed from the personal computer, using with the Vertex Standard VPL-1 Programming Cable and CE82 Software. While we believe the information in this manual to be correct, Vertex Standard assumes no liability for damage that may occur as a result of typographical or other errors that may be present. Your cooperation in pointing out any inconsistencies in the technical information would be appreciated. Contents Board Units (Schematics, Layouts as shown illustlation. Pin 6: EXT PTT Shorting this port to ground causes the transceiver to be placed in the Transmit mode, while opening the connection to this port returns the transceiver to the Receive mode. Opening voltage is 5 V, closed current approx. 5 mA. Pin 7: TRX This port is intended for controlling an external TX/ RX switching circuit. When the transceiver is placed in the the Receiver mode, this port is 5 V. When the transceiver is placed in the the Transmit mode, this port reduse to 0 V. Pin 8: IGN (IGNITION SENSE FEATURE) The VX-2100/-2200 may be automatically be switched to the STND-BY mode when the vehicles ignition key is turned on. Maximum current is 20 mA. Pin 9 - 12: ACC1 - ACC4 (ACCESSORY PORT) These port features can be programmed via the CE82 programmer. Each port is open collector output which can sink approx. 100 mA when active. Max. output 16V. When the input is selected, it becomes active between 2V and 16V. Pin 13: ACC5 (ACCESSORY PORT) The port 5 is available to set only for Output function, and active logic is the opposite side against the Port 1 4. Max.output 5V, closed current approx. 1 mA. (CMOS output) Pin 14: ACC6 (ACCESSORY PORT) The port 6 is available to set only for Input function, and active logic is the opposite side against the Port 1 4. Max.input 5V. (CMOS input) Pin 15: GND Chassis ground B-1 Pin 2: AF OUT (ANALOG OUTPUT) Low-level receiver output. Peak signal level is 150 mV at 600-ohm. Pin 3: AF GND Ground for all logic levels and power supply return. Pin 4: DC OUT (13.6 V DC OUTPUT) Switched 13.6V output for supplying power to an ac- cessory. Pin 5: RSSI (ANALOG OUTPUT) A DC voltage proportional to the strength of the sig- nal currently being received (Receiver Signal Strength Indicator) is provided on this pin. This low impedance output is gererated by the receiver IF sub-system and bufferd by an internal op-amp. Typical output volt- ages are 1 V (No Signal Input) through 2.0 V (50 dB Signal Input). Note B-2 C-1 Exploded View realignment should not be done until after the faulty component has been replaced. We recommend that servicing be performed only by au- thorized Vertex Standard service technicians who are ex- perienced with the circuitry and fully equipped for re- pair and alignment. Therefore, if a fault is suspected, con- tact the dealer from whom the transceiver was purchased for instructions regarding repair. Authorized Vertex Stan- dard service technicians realign all circuits and make com- plete performance checks to ensure compliance with fac- tory 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 must reserve the right to change circuits and alignment procedures in the interest of improved performance, with- out 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 the need for realign- ment determined to be absolutely necessary. The follow- ing test equipment (and thorough familiarity with its cor- rect use) is necessary for complete realignment. Correc- tion 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 fol- low all of the steps in a section in the order presented. Required Test Equipment ? Radio Tester with calibrated output level at 200 MHz ? In-line Wattmeter with 5% accuracy at 200 MHz ? 50-ohm, 50-W RF Dummy Load ? Regulated DC Power Supply (standard 13.6V DC, 15A) ? Frequency Counter: 0.2 ppm accuracy at 200 MHz ? AF Signal Generator ? AC Voltmeter ? DC Voltmeter ? VHF Sampling Coupler ? Microsoft Windows 95 or later operating system ? Vertex Standard VPL-1 Connection Cable and CE82 Alignment program Alignment Preparation & Precautions A 50-ohm 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 other- wise. Correct alignment is not possible with an antenna. Beacuse of the BTL (Bridged TransLess) Amplifier circuit used in the VX-2200/-2100, do not connect eather side of the speaker leads to chassis “ground.” After completing one step, read the following step to de- termine whether the same test equipment will be required. If not, remove the test equipment (except dummy load and wattmeter, if 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 C and 30 C (68 F 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 os- cillator 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 this procedure are based on 0 dB EMF = 1.0 V. Alignment F-1 Alignment Test Setup Setup the test equipment as shown for transceiver align- ment, apply 13.6V DC power to the transceiver. Refer to the drawings above for Alignment Points. The Alignment Tool Outline Installation the tool Install the CE82 (Clone Editor) to your PC. The re-alignment for VX-2200/-2100 series may use the “Alignment” menu of CE82. Action of the switches When the transceiver is in alignment mode, the action of PTT and KEY is ignored. All of the action is remote con- trolled by PC. Basic Alignment Mode The Basic Alignment mode allows you to align the entire radio. The value of each parameter can be changed to the desired position by use of the “?” / “?” and up/down arrow keys, along with direct number input and drag- ging of the PC mouse. To enter the Basic Alignment Mode, select “Basic Align- ment” in the main “Radio” menu. It will start to “Upload” the written personalized data from the radio. Pressing the “OK” button will then start the Basic Alignment Mode. Note: when all items are to be aligned, it is strongly rec- Transceiver Inline Wattmeter Power Supply 13.6 VDC Deviation Meter Frequency Counter RF Signal Generator 50-ohm Dummy Load MIC COM Port ANT RF Sampling Coupler DC INPUT VPL-1 Connection Cable F-2 ommended to align them according to following sequence. When the item is selected with TAB key, and the F1 key is pushed, the “Help” file is displayed. Detailed information for each step may be found in the “Help” file within CE82 (Clone Editor). 1. RX VCO Tune Voltage (RX VCO) 2. TX VCO Tune Voltage (TX VCO) 3. PLL Reference Frequency (Frequency) 4. RX Sensitivity (RX Tune) 5. Squelch (SQL) 6. TX Power 7. Maximum Deviation / 8. Sub Audio Deviation / 9. Sequential Tone Deviation Alignment F-3 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 appear and the “OK”, “Can- cel” buttons come alive when auto-alignment is fin- ished. 4. Press the “OK” button on the window, the value of the alignment for RX VCO will be saved in the radio. 2. TX VCO Tune Voltage (TX VCO) This parameter is to align the “Tune Voltage” of TX 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 TX 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 appear and the “OK”, “Can- cel” buttons come alive when auto-alignment is fin- ished. 4. Press the “OK” button on the window, the value of the alignment for TX VCO will be saved in the radio. Unit During alignment, the values of dBV or V (EMF or PD) can be selected or dBm. 4. RX Sensitivity (RX Tune) This parameter is to align the RX BPF (Band Pass Filter) for Rx sensitivity. It must be done both alignments of the “RX VCO Tune Voltage” and “PLL Reference Frequency” before this alignment is going to start. 1. Press the “Start” button to start the alignment. 2. Set the Signal Generator according to the indication, then press “OK”. 3. Repeat the procedure no.2 until the 3point alignment is finished. 4. It will show the result of 3 points alignment and press “OK” then the confirmation window will open. 5. Press “OK” to finish the RX Sensitivity alignment and save the data. 5. Squelch (SQL) This parameter is to align the SQL (Squelch) Sensitivity. The “RX VCO Tune Voltage”, “PLL Reference Frequency” and “RX Sensitivity (RX Tune)” must be done before this alignment is started. There are several alignments as follows in the Squelch Sensitivity. Noise SQL Tight (TH NSQ W) The Alignment for the Noise SQL Tight level at Wide (5k/ 4k). Noise SQL Threshold (TH NSQ W) The Alignment for the Noise SQL Threshold level at Wide (5k/4k). RSSI SQL Level 11 (RSSI SQL W) The Alignment for the “level 11“ of the RSSI SQL level at Wide (5k/4k). 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 on the alignment window to save the re-aligned value, the alignment of the PLL Ref- erence Frequency is accomplished. Alignment F-4 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 (TH NSQ N) The Alignment for the Noise SQL Threshold level at Nar- row (2.5k). RSSI SQL Level 11 (RSSI SQL N) The Alignment for the “level 11“ of the RSSI SQL level at Narrow (2.5k). RSSI SQL Full Scale (S Full Scale N) The Alignment for the RSSI Full Scale levle at Narrow (2.5k). The procedure for all the alignment is as follows. 1. Press the “Start” button to start the alignment. 2. Set the signal generator according to the level indi- cated, then press “OK”. 3. Press the “OK” button after finish the alignment, then the data will be saved and the alignment is accom- plished. 6. TX Power Open the “Basic2” window, this parameter is to align the Transmit Output (Hi/Low) Power. The factory default is as followings. 50 W nodel25 W model High50 W25 W Low-High25 W12.5 W Low-Middle10 W5 W E-Low1 W The procedure for the alignments of the TX Power is fol- lowings. 1. Press the “Start” button to start the alignment then the radio will transmit on the center frequency. The TX Power Alignment window will open on the PC. 2. Set the value to get desired output power by left/right arrow key, drag the slide bar by mouse or direct num- ber input. 3. Press the “OK” button on the alignment window to save the re-aligned value, the alignment of the TX POWER is accomplished. Alignment F-5 9. Sequential Tone Deviation This parameter is to align the “Sequential Tone Deviation” (for 2-Tone, 5-Tone and DTMF sequential tones). 1. Press the “Start” button to start the alignment. 2. Set the value to get desired deviation by changing the slide bar on your PC. 3. Press the “OK” button after getting the desired value to save the re-aligned value, the alignment of the SE- QUENTIAL TONE DEVIATION is accomplished. 8. Sub Audio Deviation / This parameter is to align the Deviation of Sub-Audio (CTCSS/DCS). The “TX VCO Tune Voltage” and “Max Deviation” 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: 0.6kHz) on the deviation meter by changing the slide bar on your PC. 3. Press the “OK” button after getting the desired value to save the re-aligned value, the alignment of the MAX DEVIATION is accomplished. 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 is accomplished. Alignment F-6 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” button will then start the CH Fine Alignment Mode. Note: Detailed information for each step may be found in the “Help” file within CE82 (Clone Editor). Alignment F-7 Installation of Option G-1 The FVP-25 is an Encryption/DTMF Pageing Unit which permits secure voice communications with station within your network, while preventing others from listening us- ing normal communications equipment. It allows paging, and enables selective