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FCC ID: K6610444140 

IC ID: 511B-10444140 

Alignment 

   

1/5 

Vertex Standard Co., Ltd.

 

VXR-9000U-A Alignment 

The VXR-9000U has been 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 

alteration of version. All component replacement and service should be performed only by an 

authorized VERTEX STANDSRD representative, or the warranty policy may be voided.   

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 are 

replaced, 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 must reserve 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 the need for 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. 

 

 

 

 

 

 

Summary of Contents for VXR-9000U-A

Page 1: ...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 must reserve the righ...

Page 2: ...ble from 10 to 17 VDC 15A 50 Ω Non reactive Dummy Load 100W at 1000 MHz Frequency Counter 0 1 ppm accuracy at 1000 MHz AF Signal Generator DC Voltmeter high impedance RF Sampling Coupler attenuation pad AF Dummy Load 4 Ω 20W Oscilloscope Spectrum Analyzer IBM PC compatible computer w VERTEX STANDARD VPL 1 programming cable and CE 49 channel programming editor 50 Ω RF Signal Dummy load Generator In...

Page 3: ... be made with oscillator shields and circuit boards firmly affixed in place Also the test equipment must be thoroughly warmed up before beginning Before beginning connect the transceiver and PC using the VPL 1 programming cable as described in the EEPROM Programming chapter and downloads the EEPROM data from the transceiver to the computer Store this data in a disk file so that it can be saved and...

Page 4: ...ect the positive lead of the DC voltmeter to the test point TP1001 VCV on the Main Unit as indicated in the figure and the negative lead to chassis ground Key the transmitter and adjust coil L1020 on the Unit for 1 5 V on the voltmeter Next select to the band center low edge frequency channel CH2 and confirm about 6 8 V 6 5V 7 2V on the voltmeter Next select to the high band frequency channel CH4 ...

Page 5: ... from the computer for 0 7 kHz 0 05 kHz deviation as indicated on the deviation meter Receiver Set up the test equipment as shown for receiver alignment and construct the audio test adapter as described in the box below With the transceiver set to band center frequency channel and the RF signal generator tuned to the same frequency set the generator for 3 0 kHz deviation for 25 kHz steps with 1kHz...

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