Peterson Strobe Center 5000-II Addendum - Manual

The "DISPLAY" button chooses among the "+2", "-1" and
"normal" modes (in that order) when depressed.
Addendum to SC-5000 Instruction Manual
for SC-5000 II (REV 2.20 changes)
1. REVISION 2.20 ENHANCEMENTS IN THE SC-5000 II
Revision 2.20 of theThe SC-5000 II includes several hardware and software enhancements over the previous
Strobe Center-5000 12-wheel tuner:
a. QUIETER STANDARD OPERATION
The motor speeds are reduced for normal operation. This has the dual effect of 1) greatly reducing the acoustic
noise and interference generated by the SC-5000 itself and 2) causing the lowest readable band to be shifted up
by one band position for a given sound. When in the "normal" DISPLAY mode, the band "number" on the front
panel for the lowest readable band now matches both the international standard octave number for each pitch as
well as the octave band numbering on other Peterson tuner models.
b. NEW "WHISPER" DISPLAY BAND SHIFTING
In addition to the "normal" DISPLAY band setting, the DISPLAY button now selects a "-2" (instead of "-1") band
shifting mode and a "+1" (instead of "+2") band shifting mode. Because of the change in "normal" operation
described in point (a) above, this has a net effect of maintaining the identical pitch/band relationship (and same
usable tuning range) as previous SC-5000 models when selecting these alternate display modes. However, new
digital detection and filtering techniques have been developed to produce the "-2" image band shifting effect
WITHOUT the need of dramatically increasing the internal motor speeds (as was done in the past). The result:
greatly reduced motor wear and WHISPER QUIET operation on all DISPLAY modes! The digital filtering
technique used in this "-2" mode also restricts the readable image to only one band at a given time, allowing
easier interpretation of pitch at a glance. In addition, the technique creates slower strobe rotation for a given
detuning, making high-pitched sounds easier to read and bring in tune.
(NOTE: if required, old motor-speed band shifting is still available—consult the factory for details.)
c. AUTOMATED IMAGE CLARITY
Changes in signal conditioning circuitry provide an automated HI/LO imaging selection based on the newly
improved DISPLAY shifting options described above. Lower pitched sounds are filtered more aggressively than
higher pitches to provide the clearest possible strobe images. The previous HI/LO IMAGe clarity select and save
options have thus been removed from the LCD screens.
2. ENHANCING THE VISIBILITY OF THE STROBE PATTERNS
The selection of "-2", "+1", and "normal" DISPLAY band modes is now indicated near the center of the third line
of the LCD indicator screen ("normal" is indicated as a blank):
KEY=C
A=440 00 ¢
-2
SETUP
DISPLAY
© 2005 Peterson EMP, Inc.