Rowe StarLink DLW-1, Field Service Manual And Parts Catalog

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DLW-1 Phonograph
9-4
If the Room or Speaker System Requires a Trade-Off
The equalizer limits the volume of all of the audio frequencies. Therefore, to achieve the best sound for a specific
room or set of speakers, you may find that most of the graphic equalizer controls need to be turned down. In this
situation, the overall phonograph volume may not be adequate. If you find that you have this situation, increase each
graphic equalizer control slightly until the phonograph produces the required volume.
Procedures for Adjustment
Select one of the Room Acoustics that most closely matches the acoustics of your room and follow the
instructions for that room type. If your room is an average or moderately absorbent room, or you like the sound of
the phonograph, you can use the factory settings just the way they are.
Soft and Highly Absorbent Rooms
Rooms with carpet and drapery are considered to be “soft and highly absorbent.”
1. Turn all seven right channel and seven left channel graphic equalizer controls fully counterclockwise.
2. Turn the 46 and the 108 Hz controls to the position midway between the maximum and the minimum
position as shown to the right. Leave all of the other controls turned all the way counterclockwise.
3. The controls on the equalizer should now be set as shown to the right.
4. Play a selection and turn the controls slightly (no more than 1/8 of a turn at a time) until the sound is
acceptable. Be sure that the phonograph volume is adequate. If the volume is not adequate, turn each control
up (counterclockwise) slightly until the volume is satisfactory.
Remember: The maximum volume setting is obtained when all controls are turned full counterclockwise.
Figure 2-9A. "Soft" Rooms
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-
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343 HZ
1.08 KHZ 3.43 KHZ 10.8 KHZ
46 HZ 108 HZ 343 HZ
1.08 KHZ 3.43 KHZ 10.8 KHZ
46 HZ 108 HZ
INPUT INPUT
STEREO MONO
AVC OFF AVC ON
IN
OUT
GROUND
IN
OUT
+
15.8
KHZ
-
VOLUME
CONTROL
1
5
POWER
AC - C - AC
+
-
15.8 KHZ
H L
MUSIC LEVEL
DURING PAGING
1 MUTE
INPUT
SWITCH
+15 V
GROUND
MICROPHONE
INPUT
1 13
AUX
AUDIO EQUALIZER
AUDIO EQUALIZER
1
AUDIO OUTPUTS
STEREO
PRE-AMPLIFIER
61138701
LEFT CHANNEL RIGHT CHANNEL