TANDY  1000 HX  (25-1053)           Pinouts             Faxback Doc. # 1085

GND = Ground     NC = Not Connected     * = Active Low Signal

Printer - 34 pin card edge:            Floppy - 34 pin header (Internal):

1   Strobe*          2   GND             1   NC          2   NC
3   Data 0           4   GND             3   +5V         4   NC
5   Data 1           6   GND             5   +5V         6   NC
7   Data 2           8   GND             7   +5V         8   Index*
9   Data 3           10  GND             9   +5V         10  Drive Select 0   
11  Data 4           12  GND             11  +5V         12  Drive Select 2 
13  Data 5           14  NC              13  GND         14  NC
15  Data 6           16  GND             15  GND         16  Motor On*
17  Data 7           18  GND             17  GND         18  Direction*
19  Acknowledge*     20  GND             19  GND         20  Step*
21  Busy             22  GND             21  GND         22  Write Data*
23  Paper Out*       24  GND             23  GND         24  Write Enable*
25  Select* (busy*)  26  NC              25  GND         26  Track 0*
27  Auto Feed*       28  Fault*          27  GND         28  Write Protect*
29  NC               30  Initialize*     29  +12V        30  Read Data*
31  GND              32  NC              31  +12V        32  Side Select*
33  GND              34  NC              33  +12V        34  NC

Floppy - 30 pin card edge (External):      Joystick - 6 pin DIN (2):

1   +12V                2   +5V             1  Y Axis     2  X Axis
3   +12V                4   +5V             3  GND        4  Switch 1
5   GND                 6   +5V             5  +5V        6  Switch 2
7   GND                 8   +5V   
9   GND                 10  Index*          Speaker - 2 pin header:
11  GND                 12  Track 0*     
13  GND                 14  Step*           1  Sound      2  GND
15  Side Select*        16  Motor On*
17  Direction*          18  GND         Audio Jack:       RGB - DB-9 Female:
19  Write Protect*      20  GND        
21  Read Data*          22  GND         1  GND             1  GND
23  Write Data*         24  GND         2  Audio Out       2  GND
25  Write Enable*       26  GND                            3  Red
27  NC                  28  +12V        Composite RCA      4  Green
29  Drive Select Ext*   30  +12V        -------------      5  Blue
                                        1  Video Out       6  Intensity
                                        2  GND             7  Green (MONO)
                                                           8  Horizontal Sync
                                                           9  Vertical Sync