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- Newsgroups: rec.radio.amateur.misc
- Subject: Undocumented Kenwood Features/Games TM-741/TM-732
- Date: 27 Apr 1992 16:19:05 GMT
- Lines: 114
-
- FUN AND GAMES WITH KENWOODS LATEST DUAL BANDERS
-
- UNDOCUMENTED FEATURES ON THE TM-741A and TM-732A
-
- by Fred Lloyd, AA7BQ
-
-
- Over the weekend, I took some time to experiment with my Kenwood mobile
- rigs and was quite surprised at what I found.
-
- TM-741A
-
- The 741 has three undocumented games built into it which are somewhat
- amusing. There is a "slot machine", a "space invaders" and a "musical
- keyboard".
-
- To activate, press and hold the F and MUTE keys while turning on the
- power. The display will come up showing -1- -2- -3-
- To activate game 1, press the Band 1 (leftmost) control, for game 2,
- press the Band 2 (middle) control, and for game 3, the Band 3 (rightmost)
- control.
-
- Game 1 - "Slot Machine"
-
- To start the wheels rolling, hit the MUTE key. The display shows
- "0 0 0" Then, press the Band 1, Band 2, and Band 3 keys in
- order to stop each of the wheels in turn. The radio emits a "phaser"
- sound when the wheels stop. I haven't hit the jackpot yet, so I don't
- know how it acts when the three numbers match... Use the VFO key to
- cancel the game and return the radio to normal operaton.
-
-
- Game 2 - "Space Invaders"
-
- Activate game 2 as shown above. The leftmost display will clear to
- all zeros. The center display is the "target". The rightmost display
- is some sort of shot counter. Manipulate the lower button row to
- play the game. The rig plays a tune when the game is over. Scores
- advance (with the phaser sound) as the game progresses. I don't know
- much more about it and don't exactly know the object of the game but
- I'm sure that someone will figure it out. Again, the VFO key cancels
- the game mode.
-
- Game 3 - "Musical Keyboard"
-
- Activate game 3 as shown above. The display says "Enjoy Sound Play".
- Each of the keyboard controls now plays a distinct tone. The VFO key
- cancels the mode. There are apparently 15 different tones available.
-
- -------
- It's also worth mentioning that the radio receivers continue to operate
- while game playing takes place. Presumably, one could idle away the
- time playing games while sitting by the radio and listening for
- important calls...
-
-
- OTHER TM-741 UNDOCUMENTED FEATURES
-
- DISPLAY TEST
-
- Hold down F and MHZ while turning on power. This activates the display
- test mode where all segments and indicators are lit. Note the "ACC"
- indicator at the lower right. ACC is not defined in the manual, however
- I saw it come on once one night after I started the car with the radio
- turned on. The display lit up ACC and the UHF frequency display showed
- some sort of HEX code (a ROM checksum maybe?).
-
-
- STRANGE TEST
-
- (WARNING: YOU MAY LOSE SOME SAVED MEMORY DATA)
-
- Hold down the F and MR keys while turning on power. The radio plays
- a wild sequence of tones and the displays go all crazy for several
- seconds. When it's done, everything seems normal except that the
- memory contents are reshuffled and some memories are duplicated.
- I can only speculate that this might be some sort of factory memory
- test...
-
- ---------------------------------------------------------------------
-
- UNDOCUMENTED TM-732A FEATURES
-
- CLONE MODE
-
- Hold down the F and MHZ keys while turning on power. The current
- control band will display CLonE. Pressing CALL initiates the data
- transfer, graphically illustrated by a moving S-METER display. No
- RF is transmitted during data transfer, instead it is assumed that
- the data is dumped out of the microphone port. Nothing more is
- known about this at this time.
-
-
- AM DETECTOR CONTROL
-
- The AM Detctor, which automatically comes on below 136 MHz, can be
- forced ON at any VHF frequency by pressing the F and MUTE keys
- while applying power. Radio continues to transmit FM but receives
- AM. Changing frequencies or memory channels will cancel the forced
- AM mode. This capability could be useful for listening to the
- USAF Thunderbirds which sometimes operate in the 143 MHZ band using AM.
-
-
- -----------------------------------------------------------------------
-
- Well, that's it for now. Please let us know if you can discover any
- of the other undocumented features available on the new rigs.
-
- -fred
-
-