10
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
1. Orient the Key Scan Assembly so that the Key Scan Circuit Boards are oriented as shown in
Figure 5
.
D ] Connecting the Four Key Scan Circuit Boards
Insert one end of the cable into a connector and then
gently pull the cable to the length needed to meet the
other connector. When stretching the cable, support the
connected end to keep it from pulling out. Pull the cable
from the opposite end, not from the middle of the cable,
to avoid distorting the cable. Close the lock if present.
Typically, there will be humps in these wave cables after the connections are made and they may
interfere with the keys and cause mechanical noise when keys are depressed. If the humps interfere with
your installation jump to section “H” on page 16 to review how to flatten them correctly.
Figure 7
Figure 5
Optical sensors (OP 1-22)
Bass Connector
Treble Connector
Key Scan Circuit Board
Status/Alignment LED
Figure 6
The Key Scan Assembly should look like
Figure 9
. The Bass Connector of Board 1 is not used.
Board 4 [Right]
Figure 9
6. Plug one of a 12” 6-Pin Flex Cables into the Treble Connector of Key
Scan Board 4. See
Figure 8.
Board 1 [Left]
Key Scan Assembly
Board 2
Board 3
Board 4 [Right]
2. Plug one end of a 4.5” 6-Pin Waved Flex Cable into the Treble Connector of Board 1. S
ee Figure 6.
3. Plug the other end of the cable into the Bass Connector
of Board 2.
See Figure 7.
Figure 8
Use the two remaining Waved Flex Cables to connect the other Key Scan Circuit Boards.
4. Treble Connector of Board 2 to the Bass Connector of Board 3
5. Treble Connector of Board 3 to the Bass Connector of Board 4
