AP Mainboard 41 pins connector front end. 01 PLL 128 (B17 128) 02 AF for tone RX (B09 1) 03 PLL 64 (B17 64) 04 TX block by 0v (B11 5) 05 PLL 32 (B17 32) 06 Power SW input 07 PLL 16 (B17 16) 08 Power SW input 09 PLL 8 (B17 8) 10 Power SW To radio 11 PLL 4 (B17 4) 12 Power SW To radio 13 PLL 2 (B17 2) 14 RX block by 0v (B09 5) 15 PLL 1 (B17 1) 16 +5V Keyed (B10 6) 17 Squelch reg (B09 7) 18 +5V supply (B19 4) 19 Squelch out (B09 8) 20 Volume reg (B09 2) 21 22 Alarm to AF amp (B09 6) 23 AF block by 5v (B09 4) 24 Modulation from tone TX (B10 5) 25 Disp ones 26 Disp ones 27 Disp ones 28 Disp ones 29 Disp tens 30 Disp tens 31 Disp tens 32 Disp tens 33 Loop switch (B19 3) 34 Free 35 Mod. block (B10 2) (B09) 36 Free 37 +12V for display 38 +12v for lamps 39 +12v supply 40 Loudspeaker 41 +12V keyed Downloaded fra www.webx.dk/oz2cpu/