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Service Manual                                                                                                                                                                                                                            UTS1000/3000 Series 

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inlet of the second instrument. If the air heated by the first instrument flows to the second instrument, it may 
cause  the  second  instrument  to  operate  too  hot,  or  even  malfunction.  To  prevent  excessive  dust  from 

clogging  the  vents,  clean  the  instrument  case  regularly.  But  the  case  is  not  waterproof.  When  cleaning, 

please cut off the power first, and wipe the case with a dry cloth or a slightly damp soft cloth. 
 
 

Connect the power supply 

 

voltage range 

frequency 

100-240VAC (fluctuation ±10%) 

50/60Hz 

100-120VAC (fluctuation ±10%) 

400Hz 

The specifications of the equipment that can input AC power are: 
Please use the power cord provided in the accessories to connect to the power port. 
Connecting the Power Cable 
This  instrument  is  a  Class  I  safety  product.  The  supplied  power  cord  provides  a  good  case  ground.  This 

spectrum analyzer is equipped with a three-core power cord complying with international safety standards, 

which can provide good shell grounding performance and is suitable for the regulations of the country or 

region where it is located. 
Please follow the steps below to install your AC power cord: 

 

Verify that the power cord is not damaged. 

 

When installing the instrument, please allow enough space for you to connect the power cord. 

 

Plug the supplied three-core power cord into a well-grounded power outlet. 

 

Electrostatic Protection 

 

Electrostatic discharge can cause damage to components, and electrostatic discharge may cause invisible 

damage to components during transportation, storage, and use. 
The following measures reduce electrostatic discharge damage that may occur during testing equipment: 

 

Testing should be performed in an anti-static area whenever possible; 

 

Before connecting the cable to the instrument, its inner and outer conductors should be grounded briefly 

to discharge static electricity; 

 

Make sure all instruments are properly grounded to prevent buildup of electrostatic charges. 

 

Check serial numbers and system information 

 

UNI-T is constantly improving its product performance, usability, and reliability. UNI-T service personnel can 

access the instrument serial number and system information. 
The serial number is located on the rear cover serial label, or with the analyzer powered on, press System 

 

System Information. System information is useful for updates and post-market upgrades. 
 
 
 
 
 

Содержание UTS1000 Series

Страница 1: ...Service Manual UTS1000 3000 Series Spectrum Analyzers...

Страница 2: ...ucts will become the property of UNI T References below to Customer mean the person or entity claiming the rights under this Warranty In order to obtain the service promised by this guarantee the cust...

Страница 3: ...rrectly or followed Do not proceed to the next step until the conditions of the indicated WARNING notice are fully understood and met Caution The Caution symbol indicates a hazard It alerts the user t...

Страница 4: ...eters away from Category III lines or 20 meters away from Category IV lines CAT III Primary circuits of large equipment directly connected to the distribution panel and circuit connections between the...

Страница 5: ...Before connecting the cable to the instrument briefly ground its inner and outer conductors to discharge static electricity The protectionlevel ofthisequipmentis 4kV for contactdischarge and 8kV for...

Страница 6: ...transportation and causing damage tothebuttons knobs or interfaces on the panel of the instrument please pay attention to the safety of transportation Maintain proper ventilation Poor ventilation can...

Страница 7: ...ion where it is located Please follow the steps below to install your AC power cord Verify that the power cord is not damaged When installing the instrument please allow enough space for you to connec...

Страница 8: ...ll products in the brochure Where to find operational information For information on instrument installation operation and networking refer to the help or user manual that came with your spectrum anal...

Страница 9: ...orque screwdriver to remove 41 screws 3 Cable Use an SMA torque wrench to set the value at 1 0N m 4 Front cavity of radio frequency board 5 RF PCBA board 6 RF board rear cavity 7 M3 inner torque screw...

Страница 10: ...rew Use a T10 Torque screwdriver to remove 9 screws 3 Surface shell 4 M3 inner torque screw Use a T10 Torque screwdriver to remove 5 screws 5 LCD screen assembly 6 screen bracket 7 M3 inner torque scr...

Страница 11: ...clean Inspection and Cleaning Describes how to inspect for dirt and damage It also describes how to clean the exterior or interior of the instrument Inspection and cleaning are performed as preventive...

Страница 12: ...e display surface Use only enough liquid to dampen the cloth or wipe Avoid excessive force which may damage the display surface Notice Incorrect cleaning agents or methods may damage the display Do no...

Страница 13: ...c electricity wear properly grounded anti static clothing wrist straps and foot straps effective anti static mats Remove the dust cover The following procedure describes the removal and replacement of...

Страница 14: ...static wrist and foot strap during installation and use an antistatic mat in a tested antistatic environment Steps 1 Remove all cables and power cords from the rear panel 2 Place the cushion flat on t...

Страница 15: ...allation and use an antistatic mat in a tested antistatic environment Remove the rear cover Steps 1 Use a T10 Torx screwdriver to remove the 10 upper and lower screws as shown in the figure below 2 Us...

Страница 16: ...ly Steps 1 Use a T10 Torque screwdriver to remove the 4 screws fixing the shielding cover as shown in the figure below 2 Remove the power cord and fan wire and then use a T10 Torque screwdriver to rem...

Страница 17: ...gure below 3 To reinstall reverse the above steps Removing the RF Board The following procedure describes the removal and replacement of the RF board To prevent electrostatic damage to components wear...

Страница 18: ...crews as shown in the figure below 3 Use a T10 Torque screwdriver to remove the 9 screws securing the cavity of the front cover assembly as shown in the figure below 4 Take out the cavity and use a T1...

Страница 19: ...ponents wear a properly grounded antistatic wrist and foot strap during installation and use an antistatic mat in a tested antistatic environment Remove the rear cover Steps 1 Pull out the two connect...

Страница 20: ...of the face plate To prevent electrostatic damage to components wear a properly grounded antistatic wrist and foot strap during installation and use an antistatic mat in a tested antistatic environme...

Страница 21: ...tistatic wrist and foot strap during installation and use an antistatic mat in a tested antistatic environment Remove the rear cover Remove the RF board Removing the digital IF board Remove the cover...

Страница 22: ...F board To prevent electrostatic damage to components wear a properly grounded antistatic wrist and foot strap during installation and use an antistatic mat in a tested antistatic environment Remove t...

Страница 23: ...and possible causes This list is not exhaustive but it can help eliminate quick fix issues such as a loose power cord For more detailed troubleshooting see Trouble shooting Flowchart Symptoms Possible...

Страница 24: ...m Is the power cord connected to the spectrum Is the power cord connected to the AC outlet Does the AC outlet have AC power Replace the power cord no yes yes Connect the power cord Does the power butt...

Страница 25: ...for the guarantees provided in this summary or other applicable warranty certificates UNI T doesnot provideanyotherexpress or implied guarantees including but not limited toany implied guarantees of...

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