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- IC725
-
- From : N1FCJ @ N1EDF.MA.USA.NA
- Subject : IC-725 MODS
-
-
- -----------------------------------------------------------------------------
- ICOM IC-725 MODIFICATIONS
- -----------------------------------------------------------------------------
-
- MARS MODIFICATION
- -----------------
-
- DISCLAIMER:
- This modification allows the radio to transmit outside of the designated
- Amateur freq. Transmitting where you are not licensed to do so is
- unlawful!
-
- Disassemble radio following instructions on page 24 of Instruction
- manual, steps 1 - 7, or as follows:
-
- NOTE: All instructions with the radio's front panel facing you unless
- otherwise specified!
-
- 1) Remove all black screws from top & bottom covers and remove both covers.
-
- 2) Remove the 2 flat head screws that hold the PA unit to the front unit.
- (top front of radio - Not the screws that are in the plastic front panel.)
-
- 3) Remove the 2 screws that hold the PA unit to the rear panel.
- (Looking at the rear of the radio, 1 is above the ext. speaker jack &
- 1 is above to ACC(1) jack.)
-
- 4) Unplug the 2 plugs from J11 & J12.
-
- 5) D
-
- 6) Disconnect the large black connector on the left side of radio.
-
- 7) Slide up and out, the TUNER CONTROL SOCKET from it's holder in the rear
- panel.
-
- 8) Remove the tape from the right side of the PA unit.
-
- 9) Swing the PA unit up to the left and lay over flat.
- located to the left side, rear of the board, next to J4.
- You may have to remove J4 to allow access to D-5.
-
- 11) Reassembly is As if you were
- opening a book! You now have the PLL unit exposed.
-
- 10) Cut Diode D-5 from the PLL unit.
- D-5 is loca reverse of above.
- CONTINUED IN IC725.1
- Downloaded From P-80 International Information Systems 304-744-2253
-