R7000.17 
 
 
Time:
     2 to 4 hours
 
 
II Preparation
     Read this document completely.  Select a smooth surface
     to  work on such as an antistatic mat or a towel spread
     on a table. Put the R7000 in front of you with all  the
     equipment  you will need at reach. The receiver must be
     unplugged. For safety reasons and  protection  of  your
     equipment  it  is  advisable  that  you  leave the ICOM
     unplugged for a couple of hours to allow components  to
     cool  and  capacitors to discharge.  Take off the front
     panel and the bottom panel as described in the exploded
     views  of  the service manual.  Disconnect and take off
     the logic board  (remember  the  connector  positions).
     Disconnect  and  take  off the SW3 board it may require
     disconnecting other boards.
 
 
III The memory module
     Locate IC8 on the logic board. It is the chip with  the
     battery  on top of it. Locate pin 19. Use the reference
     in the service manual to find the correct  pin  labeled
     A10 (page 7-9).
 
     Top view of IC8
 
          1       24
          o   U   o
          o       o
          o       o
          o       o
          o       o
          o       o <- 19
          o       o
          o       o
          o       o
          o       o
          o       o
          o       o
 
 
     Now think on how difficult it will be to  unsolder  pin
     19. If you think it is beyond your skills, get help.
     Unsolder pin 19 and use a pair of small pliers to  pull
     it  out  of  it  hole.  Make sure it does not touch the
     transistor nearby.  solder a wire to pin 19. this  wire
     must  be long enough to reach the front panel later on.
     When this is done, verify that pin 19 is not in contact
     with  anything  (you may want to isolate it).  You have
     done the most difficult part of the modification.
CONTINUED IN R7000.18