This document descrives how to install TrakBox v1.20 firmware to VersaBoard.
        Updated   Feb.25 1992

Hardware connection.
===================

1.LCD display.
   CN8(8255 port-A)        LCD module (HITACHI 44780 compatible)
     1 bit0      -----------    7 DB0
     2 bit1      -----------    8 DB1
     3 bit2      -----------    9 DB2
     4 bit3      -----------   10 DB3
     5 bit4      -----------   11 DB4
     6 bit5      -----------   12 DB5
     7 bit6      -----------   13 DB6
     8 bit7      -----------   14 DB7
     
   CN3(8052 P1.0-7)
     1 P1.0      -----------   6  E
     2 P1.1      -----------   5  R/W
     3 P1.2      -----------   4  RS
     
   CN15(Power)
     + +5V       -----------   2 Vdd
     - GND       -----------   1 Vss
     - GND       -----------   3 Vcont.
------------------------------------------------------------------------     
2.LED indicator

   LED2 (AOS indicator)
     CN5-6(port-C-5)  -------- (-)LED2(+) ---- 500ohm ------ +5V(BR4-)
------------------------------------------------------------------------     
3.Satellite selection SW

 (a) Satellite selection with 16 pole binary SW
  
   CN9(8255 port-B)          Binary SW (real logic)
     1 bit0      -----------   bit0     ^^^^^^^^^^
     2 bit1      -----------   bit1
     3 bit2      -----------   bit2
     4 bit3      -----------   bit3
     GND         -----------   comon terminal

 (b) Satellite selection with ADC
   
    CN9(8255 port-B)
     PB5 pin6       -----------  jumper to GND      * select ADC
     
     
    
                      VR:10K-50K     
                 Vcc--/\/\/\/\/----GND
                          ^                      * left end: terminal mode
    CN12 pin3 ------------|                      * right end: satellite 15



     Vcc----1K-1K-1K-1K-1K-1K-1K-1K-1K-1K-1K-1K-1K-1K-1K-----GND
	   |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
           0  1  2  3  4  5  6  7  8  9 10 11 12 13 14 15
	   ^
	   |_______ CN12  pin3 (ADC2)       * R ladder and 16 pole rotary SW
	   
     Vcc----1K-1K-1K-1K-1K-1K-1K-1K-1K-6K-----GND
           |  |  |  |  |  |  |  |  |  |
	   0  1  2  3  4  5  6  7  8  9
	   ^
	   |_______ CN12  pin3 (ADC2)       *R ladder and 16 pole rotary SW

------------------------------------------------------------------------     
4.Antenna control SW (ON/OFF synchronised with "E" and "*" mark on display)

   CN9(8255 port-B)
     5 bit4      ----SW-----   GND  (ON)
           
------------------------------------------------------------------------
5.Antenna rotator controler

   CN5(8255 port-C)
     1 PC0       -----------   CCW(left)
     2 PC1       -----------   CW (right)
     3 PC2       -----------   DOWN
     4 PC3       -----------   UP
     8 PC7       -----------   BRAKE
     
   CN12(ADC in)
     1 ADC0      -----------   Azimuth position sense(0-5V)
     2 ADC1      -----------   Elevation sense(0-5V)
     5 GND       -----------   GND
    
    * Cut rear BR4 pattern in the case of higher voltage line control. 
    * You must prepare interface for your antenna controler.
    * KENPRO,YAESU,EMOTO dual rotator can be connected directly.
-----------------------------------------------------------------------   
6. Doppler Freq. control to TRX

   CN4(Misc.)
     1 LPT(RS232C)  -----------   to TRX CAT terminal interface (RS232C)
                                     (KENWOOD,YAESU.ICOM)
     2 LPT(TTL)     -----------   to KENWOOD CAT terminal(TTL)
     3 LPT(TTL)     -----------   to YAESU,ICOM CAT terminal(TTL)
     5 GND       ----------- 

   In the case of using TTL output for YAESU and ICOM, It need polarity
   inversion of the signal.  2 jumper is needed.
   
     U6 pin2 ----- U6 pin5
     U6 pin6 ----- CN4 pin3   ------- to YAESU,ICOM (TTL)

     YAESU,KENWOOD = 4800bps  8-N-2  fixed
     ICOM          = 1200 bps 8-N-2  fixed   
-----------------------------------------------------------------------

Jumper setting.
==============
JP3(8052 int/external ROM) ------  2-3 (ext)
JP9(User ROM start address)------  1-2 (0000)
JP1(User ROM pin1 select)  ------  1-2 (VCC)
BR1,BR2(User ROM AD13/14)  ------  close
JP6(8051/52)               ------  1-2 (8052)
JP12(8255 port-A)          ------  1-2 (out)
JP16(8255 port-B)          ------  2-3 (in)

BR4                        ------  Close, but open if you need for your
                                   interface. 
BR5                        ------  MUST close.

-----------------------------------------------------------------------
8Front panel layout.
  -----------------------------------------------------
  |   PWR    AOS    ------------------       ___       |
  |   [L]    [L]    |15:20:30*UO-14  |      (   )      |
  |                 |Az 351.1El 65.8 |       ^^^       |
  |  P SW  ANT CONT ^^^^^^^^^^^^^^^^^^    SAT SELECT   | 
  |    []    []          TRAKBOX                       |
  |____________________________________________________|

Rear panel layout
 
  -----------------------------------------------------
  |                                               []   |
  |   DSUB9*1                                    RESET |  *1 CAT
  |            (8DIN)  (8DIN)                          |  
  |   DSUB9*2                                    PWR   |  *2 COM port
  |                                               []   |
  |____________________________________________________|
  
EOF     JA6FTL 92-02-25 updated.