Specifications

7
POWERING ON & STARTUP PROCEDURES
1. The Processor 3 power switch located on the front panel of the
power supply should be switched to the ON position. The pres-
ence of power will be indicated by a green LED on the front
panel of the power supply, and three dots will light in the center
of the Processor 3’s Display Window, indicating that the
Processor 3 is now in the STANDBY m o d e .
2. With the Processor 3 in the STANDBY mode (as indicated by
the three illuminated dots in the LED display) the STANDBY push-
button may be depressed, putting the processor into OPERATE
mode. During the warmup interval, before going into OPERATE
mode (approximately 20 seconds), the red MUTE indicator will be
illuminated and the Processor 3’s audio outputs will remain muted.
3. After approximately 20 seconds the processor will be in the
O P E R A T E mode with the default I
2
S • e digital input selected and
indicated in the lower right corner of the display window. The red
LOCK indicator will illuminate and the 3 digit numeric LED readout
will display the clock frequency of the incoming digital audio data,
if present. If digital audio data is not present at the selected digital
input, three horizontal dashes will be displayed and the LOCK L E D
will be extinguished, indicating a NO LOCK condition.
4. If an I
2
S • e capable device is not the source, you may select
the desired digital input using one of the 5 other input buttons (A).
A corresponding indicator will illuminate in the display window
showing your new input selection. If the newly selected source is
on and active, the clock frequency will be displayed and the
LOCK indicator illuminated. When the processor is powered up
and down via the STANDBY button the last input selection will
remain in memory and be recalled. Should the equipment lose
power or be turned off with the main power switch (R), the memo-
ry will reset to the initial default state I
2
S • e setting, requiring the
user to reselect the digital input if an I
2
S • e capable device is not
the source.
5. Once a digital input source has been selected you can change
phase polarity from 0°-180° to restore absolute polarity to a
recording which may have been recorded with its polarity inverted.
6. If the incoming data stream has been HDCD encoded, the
H D C D
®
indicator will illuminate, showing the HDCD decoder is
enabled and processing HDCD audio.
7. The DISPLAY button (C) may be used to set the intensity of the
LED display in the display window to a comfortable viewing level.
Four levels of brightness plus OFF are available by stepping the
DISPLAY button through the range.
8. A three digit numeric display located in the central area of the
display window, indicates the recovered clock frequency of the
incoming data stream selected. One of three frequency values,
32.0, 44.1 or 48.0 kHz* will be displayed automatically corre-
sponding to the clock frequency of the incoming data stream.
*The Processor 3 is designed to be upgradeable to the latest digital audio standards
as they are released. The clock frequencies shown are the values currently available, at
this time, however the display is capable of showing others if they become available,
and the appropriate update pcb’s are installed.
Note: Some digital audio recordings have been produced with
pre-emphasized HF characteristics requiring the digital processor to
recognize and de-emphasize them correctly. The Processor 3
automatically recognizes and performs de-emphasis in the digital
domain via the PMD100 HDCD decoder’s digital filter.