QRS PNOscan II, Installation Manual

20 

P N O s c a n  

P N O s c a n  

P N O s c a n  

I I

I I

I I

  I n s t a l l a t i o n   M a n u a l  

  I n s t a l l a t i o n   M a n u a l  

  I n s t a l l a t i o n   M a n u a l  

QRS Music Technologies, Inc.  /  Technical Support - 800-247-6557  /  www.qrsmusic.com 

Manual Rev. 1.18 

At this point in the installation... 



Refer to 

Figure 26A [Grand] or Figure 26B [Upright]

. 



The Key Scan Assembly should be installed under the keys, mechanically aligned both left/right and 
front/back and set to the proper height.  



The sides of the keys should be darkened.  



The Soft Pedal Assembly should be installed and at the proper distance from the key frame.  



The Soft Pedal Board’s “IN” connector should be connected to the TUSB Interface’s “Primary Port”. 



The Sustain Pedal Assembly should be in place and adjusted. 



The Sustain Pedal Assembly should be connected to the Soft Pedal Assembly’s “Sust” connector.  



There should be one 12" cable [20” on Upright pianos] connected to the Key Scan port of the Soft Pedal 
Assembly but, the opposite end not yet connected.  

1.  Route the 12” cable [20” for Uprights] from the Key Scan connector of the Soft Pedal Assembly  along 

the inside wall of the piano case extending it toward the front of the piano.  

2.  Grand - Use a couple of wave clamps to secure the cable. One clamp should be located close to back 

end of the key block. This will provide a holding place for the cable coupler. 

3.  Attach the Flex Cable Coupler to the open end of this cable. [Upright installations will not need the 

coupler at this cable. Run the 20” cable from the key Scan connector to the Soft Pedal Assembly]. 



A cable coupler allows easy disconnect of the Key Scan Assembly when the action get's serviced and 
also provides damage protection in the event someone inadvertently pulls the piano action from the 
piano without disconnecting the cable. The cable will automatically disconnect. 

4.  Proceed to place the action assembly back into the piano. Grab the cable coupler and connect the two 

12" cables together. 

5.  Connect the TUSB Interface to power via either the 5 Volt adapter or to a Computer via the USB port. 

5.  Perform the Keyboard and Pedal Setup procedures on page 21 to complete the PNOscan 

II 

installation. 

6. 

Reassemble the piano.

M ]  Final Assembly