Philips FM92E Manual page 32

Method 1:
6: It's back to the big soldering iron, this time to refit the board back into the module. To do this we recommend
that you carefully add some solder to the pads where the module connects to ensure a good joint. Find
something raised to rest the board on (a rectangular 9 volt battery is ideal) and place the module over it in the
correct place, then apply heat to the module. Again the heat will travel down the posts of the module melting
the solder on the board, make sure the board doesn't move at this time, and that the coils align with the holes
in the module so you can gain access later for tuning.
Or, glue the PCB with new coils back into the module.
7: When the board has been re-fitted and you are comfortable with the solder joints to the module, refit the
cover by sweating the solder around the joints and slowly work your way around the edge. Be careful to
overheat the case as the internal board may come loose.
8: Now you need to remount the module back to the board. Carefully fit the pins back through the holes and refit
the screws, then solder all the pins making sure that there are no short circuits as a result. When it is all
refitted, we can do a quick VCO tune up to make sure what we have done so far is all okay.
ie:
•
Replace VCO block back onto main PCB. Screw in 2 screws, then solder pins to board.
NOTE: In the above operation be very careful of the PCB pins, they bend & break very easily.
Philips FM92E Conversion to 6 Meters: Version 3.9 Page 32