12
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
7. As a test, place your finger over and in close proximity to the individual Optical “OP” sensors on the key
scan boards. As the sensors are activated you will see a corresponding flicker of the lighted FUNCTION
button on the TUSB as well as the green “Status LED-Align” LEDs on the key scan boards. See
Figure 12
If the system does not respond as described above check your connections and your AC power source.
E]... Establishing the Bass/Treble Position of the Key Scan Circuit Boards - Function Test ...
These green LED “Status ” lights, one on each board, indicate activity as MIDI data flows through the
system. It also indicates the system’s mode as follows:
Standard Version modes, see page 23 for version 45 modes when used with the QRS Sound Module.
QRS
Mode
- Light blinks once, then a pause.
-
MIDI output is optimized for Pianomation acoustic record and playback.
MIDI Sound Module Mode
- Light blinks twice, then a pause.
- MIDI output is optimized for playback through a sound module.
-
The output level of this mode is greater that that of the Record Mode.
Mute Mode
: Light flashes steadily.
- Stops MIDI output from PNOscan
II
.
The LEDs also help to determine the proper left to right location of the Optical Sensors under each key.
The placement of these “Status” LEDs is in a very specific location on the circuit board, and when they are
positioned properly between certain keys, they will confirm that each Optical Sensor is positioned
correctly under it’s respective key.
It is not likely all of the sensors will align at the exact center of the keys. Therefore, alignment must be
averaged across the groups of 22 notes. The “Status” LED must always end up within it's corresponding
key gap.
Figure 12
