The diodes D12 to D20 and D10 + D8 on the logic board is the diodes that control frequencyrange and model version.
 
                            [Logic board]
-----------------------------------------------------------------------------------+
                                                                      ------       |
                                                                       W1          |
                                                                                   |
                                                                                   |
                     J 7                    D14       D15       D12       D13      |
     +-------------------------------+     +----+    +----+    +----+    +----+    |
     |                               |     |    |    |    |    |    |    |    |    |
     |                               |     +----+    +----+    +----+    +----+    |
     +-------------------------------+                                             |
                                          +-----+    +----+    +----+   +----+     |
                                          |     |    |    |    |    |   |    |     |
                                          +-----+    +----+    +----+   +----+     |
                                           D18        D19       D16       D17      |
                                                                                   |
                                          +---------+    +--------+                |
                                          |         |    |        |                |
                                          +---------+    +--------+                |
                                                D10         D8                     |
-----------------------------------------------------------------------------------+
Minirepeater:
 
  - Remove D16 on logic board. (Not necessary on USA version)
  
 - Set the  desired QRG on each band.
  
 - Push the [VHF MAIN] + [UHF MAIN] VFO knob and push [SET] at the same time.
 The memory channel indication changes to "L" (L=Minirepeater mode)
  
To return to normal, push and hold [SET].
 Expand RX for the EUR version:
 By key funktion:
 
  - Switch off the radio.
  
 - Push the [V/MHz] (for VHF), and [SET] and [DN] on microphone at the same time, while turning on power.
  
By diode:
 
  - Remove D17 diode on the logic board.
  
 - Do a full reset  by switching off the radio. Then while pushing [SET] + [SPCH], turn on the radio.
  
After either mod, you will have:
 
118,000 - 135,995 MHz AM
136,000 - 174,000 MHz FM
320,000 - 479,000 MHz FM
830,000 - 950,000 MHz FM (Needs extra coaxial cable to receive anything)
 
Expand RX for the USA version:
 
  - Cut W1 jumper wire on logic board.
  
After mod, you will have:
 
118,000 - 135,995 MHz AM
136,000 - 174,000 MHz FM
320,000 - 479,000 MHz FM
 
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