Owners Manual

23
1. Select “DISPLAY BRIGHTNESS” as indicated
on the Front Panel Information Display. Refer to
figures 60, 63 (on page 20) and 82.
2. Reduce the Brightness level by adjusting the
TRIM LEVEL. Refer to figure 83.
After approximately 6 seconds the Information
Display returns to indicate the Source Selection and
Volume Level.
PHONO ADJUSTMENTS
When the Phono MC or Phono MM Input is selected
an additional TRIM SELECT FUNCTION becomes
available for adjustment. Perform the following steps
to make the Phono Trim Adjustments:
1. Select either the Phono MM or Phono MC Source
Input.
2. Select “MC PHONO LOAD, 400Ω (ohms)” or
“MM PHONO LOAD, 50pF” as indicated on the
Front Panel Information Display. Refer to figures
84 and 85.
3. Set the desired phono cartridge loading value
(Ohms for a Moving Coil Cartridge or Capaci-
tance for a Moving Magnet Cartridge) that comes
closest to the Phono Cartridge Makers recom-
mended value.
After approximately 6 seconds the Alphanumeric
Display returns to indicate the Source Selection and
Volume Level.
Mute
Press the MUTE Push-button, on the C47 Front Panel
or on the Remote Control, to Mute the Audio in all
outputs (Main, Output 1, Output 2 and Headphones)
except the FIXED OUTPUT. The Front Panel Infor-
mation Display will indicate the Source Name and
the word MUTE in place of the actual volume setting.
Refer to figure 86.
Pressing the Mute Push-button a second time or
adjusting the volume control (either the Front Panel or
Remote Control) will unmute the C47.
Tone
Press the Front Panel TONE Push-button to activate
the C47 TREBLE and BASS Tone Control Circuitry
for the currently selected Input Source. The LED
above the TONE Push-button will illuminate. To
bypass the TONE CONTROL CIRCUITRY for the
currently selected Input Source press the TONE Push-
button. The LED above the EQUALIZER Push-button
will extinguish.
Refer to figure 60. The C47 remembers for each
selected Input whether the Tone Control Circuitry is
active or bypassed.
Note. The audio signal present at the FIXED OUT
Jacks is unaffected by the Equalizer Circuitry.
Output 1 and 2
Press the Front Panel OUTPUT 1 or OUTPUT 2
Push-button or use the Remote Control and press the
SETUP/BLUE Push-button followed by the OUTPUT
1 or OUTPUT 2 Push-button, to send audio to sepa-
rate Power Amplifiers connected to the rear panel
OUTPUT 1 or 2 Jacks. It also activates the POWER
CONTROL TRIGger 1 or 2 Jacks on the rear panel of
the C47. To stop the Audio and Power Control Signals
from going to the separate Power Amplifiers, press the
same Push-button(s) a second time.
Trim
Momentarily press the Front Panel INPUT Control to
activate the C47 Trim Functions. Rotate the INPUT
Control to select the desired Trim Function and then
use the VOLUME (adjust) Control to change the Trim
setting. Refer to figure 60. The Remote Control TRIM
and LEVEL UP / DOWN Push-buttons may also be
used. Approximately 6 seconds after Trim Function
Selection and/or adjustments have stopped, the C47
will switch the Trim Mode Off.
Passthru
The C47 will automatically turn On and switch to the
previously setup Passthru Input when the McIntosh
A/V Processor or Multichannel Surround Decoder is
turned-on. The Audio Preamplifier Front Panel Alpha-
numeric Display will indicate “PASSTHRU”. Refer to
figure 87 on the next page.
How to Operate the C47, con’t
Figure 83
DISPLAY
BRIGHTNESS
Figure 82
DISPLAY
BRIGHTNESS
Figure 84
MC PHONO LOAD
400O
Figure 85
MM PHONO LOAD
50pF
Figure 86
INPUT: BAL 1
MUTE