Installation guide
Chapter 2: Run the Cables – Type A          22 
AMF 82-70 with MK Expander 
Run both the DMO-70MK and DME-70MK cables from the Duo Camera Module, along the Ball Track, up the 
kickback. 
The DMO & DME cables each consist of three separate cables: 
A.  The First cable is run to the A&MC box located on the curtain wall. Again, the start contact is wired in series to 
the managers control switch on AMC Pin 5 and the cycle contact is wired in parallel across AMC pins 1 & 2 to the 
cycle button from the ball return. The Foul signal is also wired to the AMC box across AMC pins 7 & 8. 
Warning: Be careful when pulling out the existing AMC connections that you do not 
pull  out  more  than  the  intended  connector  by  exerting  too  much  force. 
Also, make sure that no  connectors are shorting out with any others, 
otherwise machine faults like continual cycling could occur. 
Note:  The  Duo  unit’s  start  contacts must be connected in series (in line) not in 
parallel  with  (across)  the  manager’s  control switch.  This  is  to  ensure that 
when the manager’s control switches are switched off the pinsetter will turn 
off. Normal operation will see the Manager’s control switch turned on, the 
pinsetter will turn on and off with the games bowled. If, however, there is 
an urgent need  to  turn  the  pinsetter  off  it can be  done  quickly  using the 
Manager's control switches. 
B.  The second cable is run to the MK Expander PC Board in the control chassis, where the four-pin connector is 
plugged into the top right corner of the Printed Circuit Board. The APS commands allow more advanced 
pinsetter functions such as short strike cycle, sweep reverse on 1
st
 ball miss and 7 – 10 pick off. 
C.  The third cable is run to the masking unit, where it is connected across the 2
nd
 Ball light. Check the polarity of 
the connection by making sure that the 2
nd
 Ball Indicator on the Duo Camera unit comes on when the pinsetter is 
on second ball. 
Important! 
The take data delay in the Fine Tune the Scoring Setup screen must be set to a allow enough time for the 
score to be taken and the APS input to the MK expander chassis to be driven prior to the pinspotter table starting to 
move. The default setting is 3.0 seconds for the Omega-Tek chassis fitted with MK expanders. The MK expander 
must receive the APS scoring input prior to the table operating, so that any advanced functions such sweep reverse 
can occur if necessary. If the table starts moving, it is too late for any advanced commands to be received. 
This Take Data Delay should be set as long as possible to give the maximum time for any unsteady pins to 
fall, but not too long so that the MK expander times out and ignores 7-10 pick off or short strike cycles. 
Note:  Make sure  that the  Pinsetter  Model Type in the Setup Wizard is set to 
AMF 82_70MP.   The MP Chassis and the MK Expander behave in the 
same way, so the one Pinsetter  Model Type will operate both  types  of 
chassis. 
Tip:  Some pinspotters have the MK expander fitted, but have not been re-wired 
to enable reversing of the sweep motor. It is possible to enable or disable 
the  sweep  reverse  function  for  the  APS  in  the  Check  Pinsetter 
Connections screen in the troubleshooting menu of the Duo.  










