CPU Reset Procedures

The following procedure will reset the main CPU on the following receivers:-

• AOR AR-1000
• AOR AR-2000
• Camnis HSC-010
• Fairmate HP-100 & HP-200
• Fairmate HP-2000
• Trident TR-1200

All these receivers were manufactured by the same Company.

Whilst the basic features, specifications and performance of all these sets are very much the same later variants of the radio use a different reset procedure.

The AR-1000 and Fairmate HP-100/200 are reset by the same keystrokes but due to internal change in design the AR-2000, Camnis HSC-010, Fairmate HP-2000 and Trident TR-1200 are different from the above.

You will Need:

• A small Philips screwdriver
• A fine pointed soldering iron

What to Do:

• Remove the batteries together with the tuning, volume, and squelch knobs

• Remove the 4 black screws on the back cover (2 in the battery compartment) and remove the back cover. Be careful as the back case is connected to the Power board by a two pin connector, disconnect this connector and the back cover can be placed to one side.

• With the unit face down (keypad and screen face down) unsolder the brown wire at the top left corner together with the black wire from the bottom right corner (If you have an AR2000, HSC-010, TR-1200 this black wire will probably not be present).

• Remove the 3 screws that hold this board down.

• Carefully remove this board by sliding out the control knobs from the top. There is not a great deal of movement but enough to "fold" it over to one side.

• The middle board will now be visible. Unsolder the black wire from the middle board and unscrew the three copper columns that retain this board.

• Again carefully lift this middle board to one side. You may, if you wish disconnect some of the connector blocks if this makes things a little easier but REMEMBER where they came from (make a written note). It will be necessary to reconnect them when the time comes to reset the CPU so if you can work with all connections in place that is the better option.

• The lower board should now be visible and look something like:

• Solder a piece of wire between the two points as detailed above.

• Re-assemble the receiver reconnecting any wires you may have separated.

• You can either replace the battery cover or use an external power source via the 12v DC socket to power up the radio.

AR-1000 / Fairmate HP-100/HP- 200

• Turn the radio on
• Press the following keys exactly as follows:-
  
  BANK
  1 PROG .5 LIMIT 49.995 SEARCH 561.225 ENTER
  2 PROG 50 LIMIT 107.995 SEARCH 561.225 ENTER
  3 PROG 108 LIMIT 169.995 SEARCH 561.225 ENTER
  4 PROG 170 LIMIT 296.995 SEARCH 561.225 ENTER
  5 PROG 297 LIMIT 600 SEARCH 251.575 ENTER
  6 PROG 805 LIMIT 1109995 [down arrow] 251.575 ENTER
  7 PROG 1110 LIMIT 1300 [down arrow] 561.225 ENTER
  

AR-2000 / Camnis HSC-010 / HP-2000 / TR-1200

• Turn the radio on
• Press the following keys exactly as follows:-
  
  BANK
  1 PROG .5 LIMIT 49.995 SEARCH 556.325 ENTER
  2 PROG 50 LIMIT 107.995 SEARCH 556.325 ENTER
  3 PROG 108 LIMIT 169.995 SEARCH 556.325 ENTER
  4 PROG 170 LIMIT 296.995 SEARCH 556.325 ENTER
  5 PROG 297 LIMIT 599.995 SEARCH 249.125 ENTER
  6 PROG 800 LIMIT 1109995 [down arrow] 249.125 ENTER
  7 PROG 1110 LIMIT 1300 [down arrow] 556.325 ENTER
  8 PROG 600 LIMIT 799.995 SEARCH 58.075 ENTER

Turn the receiver off

Unsolder the piece of wire on the bottom board.

Rather than unsolder this wire you may consider placing a micro switch in line that will allow you to make and break this connection. Locating the micro switch in the battery compartment, or at least in a more accessible place will make any further reset considerably easier.

Re-assemble the radio including all wires, connectors and screws.

All memory contents will be lost and all search banks will be back at Factory settings.