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IC-7300 No RF out

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• IC-7300 No RF out

• IC-7300 No RF out

  VK6TU > 27-05-2022, 12:28 AM

  Posting this in-case it is of some help to others in the future.
  
  My IC-7300 decided to stop transmitting, everything seemed to be working just had no RF out at all.
  After checking everything I could the radio was sent to Icom.
  
  After testing they reported the following
  Found that IDL circuitry is faulty this may have caused by surge in power supply.
  
  Radio now fixed.
  
  a $5 part was the fault, IC211 which is a INA199A2DCKT,  Current Sense Amplifier
  It is located on the PA Unit just below the internal Fuse and has a direct connection to the DC in circuit.
  
  Is part of the IDL circuit and goes to the APC AMP on the main board.
  No idea just what it does or what was the cause as been using a battery for the power supply for quite a while now.
  Was a easy fix in the end.
  
  Got the internal battery replaced at the same time for only $5.20 extra.
  
  73 from Michael
  VK6TU
  
  
  
     
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